Daniel Elliott
f9d20bb3fc
- 28,932 files - Full Java source code - Smali files - Resources Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
1739 lines
68 KiB
Java
1739 lines
68 KiB
Java
package androidx.core.widget;
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import android.R;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Rect;
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import android.os.Bundle;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.util.TypedValue;
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import android.view.FocusFinder;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.VelocityTracker;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewGroup;
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import android.view.ViewParent;
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import android.view.accessibility.AccessibilityEvent;
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import android.view.animation.AnimationUtils;
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import android.widget.EdgeEffect;
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import android.widget.FrameLayout;
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import android.widget.OverScroller;
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import android.widget.ScrollView;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.RequiresApi;
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import androidx.annotation.RestrictTo;
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import androidx.annotation.VisibleForTesting;
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import androidx.core.os.BuildCompat;
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import androidx.core.view.AccessibilityDelegateCompat;
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import androidx.core.view.DifferentialMotionFlingController;
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import androidx.core.view.DifferentialMotionFlingTarget;
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import androidx.core.view.MotionEventCompat;
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import androidx.core.view.NestedScrollingChild3;
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import androidx.core.view.NestedScrollingChildHelper;
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import androidx.core.view.NestedScrollingParent3;
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import androidx.core.view.NestedScrollingParentHelper;
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import androidx.core.view.ScrollingView;
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import androidx.core.view.ViewCompat;
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import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
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import androidx.core.view.accessibility.AccessibilityRecordCompat;
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import java.util.ArrayList;
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/* loaded from: classes.dex */
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public class NestedScrollView extends FrameLayout implements NestedScrollingParent3, NestedScrollingChild3, ScrollingView {
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static final int ANIMATED_SCROLL_GAP = 250;
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private static final int DEFAULT_SMOOTH_SCROLL_DURATION = 250;
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private static final float FLING_DESTRETCH_FACTOR = 4.0f;
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private static final float INFLEXION = 0.35f;
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private static final int INVALID_POINTER = -1;
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static final float MAX_SCROLL_FACTOR = 0.5f;
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private static final float SCROLL_FRICTION = 0.015f;
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private static final String TAG = "NestedScrollView";
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private int mActivePointerId;
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private final NestedScrollingChildHelper mChildHelper;
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private View mChildToScrollTo;
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@VisibleForTesting
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DifferentialMotionFlingController mDifferentialMotionFlingController;
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@VisibleForTesting
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final DifferentialMotionFlingTargetImpl mDifferentialMotionFlingTarget;
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@NonNull
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@RestrictTo({RestrictTo.Scope.LIBRARY})
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@VisibleForTesting
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public EdgeEffect mEdgeGlowBottom;
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@NonNull
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@RestrictTo({RestrictTo.Scope.LIBRARY})
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@VisibleForTesting
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public EdgeEffect mEdgeGlowTop;
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private boolean mFillViewport;
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private boolean mIsBeingDragged;
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private boolean mIsLaidOut;
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private boolean mIsLayoutDirty;
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private int mLastMotionY;
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private long mLastScroll;
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private int mLastScrollerY;
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private int mMaximumVelocity;
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private int mMinimumVelocity;
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private int mNestedYOffset;
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private OnScrollChangeListener mOnScrollChangeListener;
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private final NestedScrollingParentHelper mParentHelper;
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private final float mPhysicalCoeff;
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private SavedState mSavedState;
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private final int[] mScrollConsumed;
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private final int[] mScrollOffset;
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private OverScroller mScroller;
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private boolean mSmoothScrollingEnabled;
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private final Rect mTempRect;
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private int mTouchSlop;
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private VelocityTracker mVelocityTracker;
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private float mVerticalScrollFactor;
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private static final float DECELERATION_RATE = (float) (Math.log(0.78d) / Math.log(0.9d));
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private static final AccessibilityDelegate ACCESSIBILITY_DELEGATE = new AccessibilityDelegate();
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private static final int[] SCROLLVIEW_STYLEABLE = {R.attr.fillViewport};
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public interface OnScrollChangeListener {
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void onScrollChange(@NonNull NestedScrollView nestedScrollView, int i, int i2, int i3, int i4);
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}
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private static int clamp(int i, int i2, int i3) {
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if (i2 >= i3 || i < 0) {
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return 0;
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}
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return i2 + i > i3 ? i3 - i2 : i;
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}
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public boolean isFillViewport() {
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return this.mFillViewport;
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}
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public boolean isSmoothScrollingEnabled() {
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return this.mSmoothScrollingEnabled;
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}
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@Override // androidx.core.view.NestedScrollingParent2
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public boolean onStartNestedScroll(@NonNull View view, @NonNull View view2, int i, int i2) {
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return (i & 2) != 0;
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}
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public void setOnScrollChangeListener(@Nullable OnScrollChangeListener onScrollChangeListener) {
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this.mOnScrollChangeListener = onScrollChangeListener;
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}
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public void setSmoothScrollingEnabled(boolean z) {
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this.mSmoothScrollingEnabled = z;
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}
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@Override // android.widget.FrameLayout, android.view.ViewGroup
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public boolean shouldDelayChildPressedState() {
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return true;
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}
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public NestedScrollView(@NonNull Context context) {
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this(context, null);
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}
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public NestedScrollView(@NonNull Context context, @Nullable AttributeSet attributeSet) {
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this(context, attributeSet, androidx.core.R.attr.nestedScrollViewStyle);
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}
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public NestedScrollView(@NonNull Context context, @Nullable AttributeSet attributeSet, int i) {
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super(context, attributeSet, i);
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this.mTempRect = new Rect();
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this.mIsLayoutDirty = true;
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this.mIsLaidOut = false;
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this.mChildToScrollTo = null;
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this.mIsBeingDragged = false;
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this.mSmoothScrollingEnabled = true;
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this.mActivePointerId = -1;
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this.mScrollOffset = new int[2];
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this.mScrollConsumed = new int[2];
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DifferentialMotionFlingTargetImpl differentialMotionFlingTargetImpl = new DifferentialMotionFlingTargetImpl();
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this.mDifferentialMotionFlingTarget = differentialMotionFlingTargetImpl;
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this.mDifferentialMotionFlingController = new DifferentialMotionFlingController(getContext(), differentialMotionFlingTargetImpl);
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this.mEdgeGlowTop = EdgeEffectCompat.create(context, attributeSet);
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this.mEdgeGlowBottom = EdgeEffectCompat.create(context, attributeSet);
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this.mPhysicalCoeff = context.getResources().getDisplayMetrics().density * 160.0f * 386.0878f * 0.84f;
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initScrollView();
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TypedArray obtainStyledAttributes = context.obtainStyledAttributes(attributeSet, SCROLLVIEW_STYLEABLE, i, 0);
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setFillViewport(obtainStyledAttributes.getBoolean(0, false));
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obtainStyledAttributes.recycle();
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this.mParentHelper = new NestedScrollingParentHelper(this);
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this.mChildHelper = new NestedScrollingChildHelper(this);
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setNestedScrollingEnabled(true);
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ViewCompat.setAccessibilityDelegate(this, ACCESSIBILITY_DELEGATE);
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}
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@Override // androidx.core.view.NestedScrollingChild3
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public void dispatchNestedScroll(int i, int i2, int i3, int i4, @Nullable int[] iArr, int i5, @NonNull int[] iArr2) {
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this.mChildHelper.dispatchNestedScroll(i, i2, i3, i4, iArr, i5, iArr2);
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}
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@Override // androidx.core.view.NestedScrollingChild2
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public boolean startNestedScroll(int i, int i2) {
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return this.mChildHelper.startNestedScroll(i, i2);
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}
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@Override // androidx.core.view.NestedScrollingChild2
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public void stopNestedScroll(int i) {
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this.mChildHelper.stopNestedScroll(i);
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}
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@Override // androidx.core.view.NestedScrollingChild2
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public boolean hasNestedScrollingParent(int i) {
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return this.mChildHelper.hasNestedScrollingParent(i);
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}
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@Override // androidx.core.view.NestedScrollingChild2
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public boolean dispatchNestedScroll(int i, int i2, int i3, int i4, @Nullable int[] iArr, int i5) {
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return this.mChildHelper.dispatchNestedScroll(i, i2, i3, i4, iArr, i5);
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}
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@Override // androidx.core.view.NestedScrollingChild2
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public boolean dispatchNestedPreScroll(int i, int i2, @Nullable int[] iArr, @Nullable int[] iArr2, int i3) {
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return this.mChildHelper.dispatchNestedPreScroll(i, i2, iArr, iArr2, i3);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public void setNestedScrollingEnabled(boolean z) {
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this.mChildHelper.setNestedScrollingEnabled(z);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean isNestedScrollingEnabled() {
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return this.mChildHelper.isNestedScrollingEnabled();
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean startNestedScroll(int i) {
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return startNestedScroll(i, 0);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public void stopNestedScroll() {
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stopNestedScroll(0);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean hasNestedScrollingParent() {
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return hasNestedScrollingParent(0);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean dispatchNestedScroll(int i, int i2, int i3, int i4, @Nullable int[] iArr) {
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return this.mChildHelper.dispatchNestedScroll(i, i2, i3, i4, iArr);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean dispatchNestedPreScroll(int i, int i2, @Nullable int[] iArr, @Nullable int[] iArr2) {
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return dispatchNestedPreScroll(i, i2, iArr, iArr2, 0);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean dispatchNestedFling(float f, float f2, boolean z) {
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return this.mChildHelper.dispatchNestedFling(f, f2, z);
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}
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@Override // android.view.View, androidx.core.view.NestedScrollingChild
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public boolean dispatchNestedPreFling(float f, float f2) {
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return this.mChildHelper.dispatchNestedPreFling(f, f2);
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}
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@Override // androidx.core.view.NestedScrollingParent3
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public void onNestedScroll(@NonNull View view, int i, int i2, int i3, int i4, int i5, @NonNull int[] iArr) {
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onNestedScrollInternal(i4, i5, iArr);
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}
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private void onNestedScrollInternal(int i, int i2, @Nullable int[] iArr) {
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int scrollY = getScrollY();
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scrollBy(0, i);
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int scrollY2 = getScrollY() - scrollY;
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if (iArr != null) {
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iArr[1] = iArr[1] + scrollY2;
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}
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this.mChildHelper.dispatchNestedScroll(0, scrollY2, 0, i - scrollY2, null, i2, iArr);
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}
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@Override // androidx.core.view.NestedScrollingParent2
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public void onNestedScrollAccepted(@NonNull View view, @NonNull View view2, int i, int i2) {
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this.mParentHelper.onNestedScrollAccepted(view, view2, i, i2);
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startNestedScroll(2, i2);
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}
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@Override // androidx.core.view.NestedScrollingParent2
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public void onStopNestedScroll(@NonNull View view, int i) {
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this.mParentHelper.onStopNestedScroll(view, i);
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stopNestedScroll(i);
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}
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@Override // androidx.core.view.NestedScrollingParent2
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public void onNestedScroll(@NonNull View view, int i, int i2, int i3, int i4, int i5) {
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onNestedScrollInternal(i4, i5, null);
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}
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@Override // androidx.core.view.NestedScrollingParent2
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public void onNestedPreScroll(@NonNull View view, int i, int i2, @NonNull int[] iArr, int i3) {
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dispatchNestedPreScroll(i, i2, iArr, null, i3);
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public boolean onStartNestedScroll(@NonNull View view, @NonNull View view2, int i) {
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return onStartNestedScroll(view, view2, i, 0);
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public void onNestedScrollAccepted(@NonNull View view, @NonNull View view2, int i) {
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onNestedScrollAccepted(view, view2, i, 0);
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public void onStopNestedScroll(@NonNull View view) {
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onStopNestedScroll(view, 0);
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public void onNestedScroll(@NonNull View view, int i, int i2, int i3, int i4) {
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onNestedScrollInternal(i4, 0, null);
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public void onNestedPreScroll(@NonNull View view, int i, int i2, @NonNull int[] iArr) {
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onNestedPreScroll(view, i, i2, iArr, 0);
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public boolean onNestedFling(@NonNull View view, float f, float f2, boolean z) {
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if (z) {
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return false;
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}
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dispatchNestedFling(0.0f, f2, true);
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fling((int) f2);
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return true;
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}
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@Override // android.view.ViewGroup, android.view.ViewParent, androidx.core.view.NestedScrollingParent
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public boolean onNestedPreFling(@NonNull View view, float f, float f2) {
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return dispatchNestedPreFling(f, f2);
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}
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@Override // android.view.ViewGroup, androidx.core.view.NestedScrollingParent
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public int getNestedScrollAxes() {
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return this.mParentHelper.getNestedScrollAxes();
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}
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@Override // android.view.View
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public float getTopFadingEdgeStrength() {
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if (getChildCount() == 0) {
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return 0.0f;
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}
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int verticalFadingEdgeLength = getVerticalFadingEdgeLength();
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int scrollY = getScrollY();
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if (scrollY < verticalFadingEdgeLength) {
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return scrollY / verticalFadingEdgeLength;
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}
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return 1.0f;
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}
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@Override // android.view.View
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public float getBottomFadingEdgeStrength() {
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if (getChildCount() == 0) {
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return 0.0f;
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}
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View childAt = getChildAt(0);
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FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
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int verticalFadingEdgeLength = getVerticalFadingEdgeLength();
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int bottom = ((childAt.getBottom() + layoutParams.bottomMargin) - getScrollY()) - (getHeight() - getPaddingBottom());
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if (bottom < verticalFadingEdgeLength) {
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return bottom / verticalFadingEdgeLength;
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}
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return 1.0f;
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}
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public int getMaxScrollAmount() {
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return (int) (getHeight() * MAX_SCROLL_FACTOR);
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}
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private void initScrollView() {
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this.mScroller = new OverScroller(getContext());
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setFocusable(true);
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setDescendantFocusability(262144);
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setWillNotDraw(false);
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ViewConfiguration viewConfiguration = ViewConfiguration.get(getContext());
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this.mTouchSlop = viewConfiguration.getScaledTouchSlop();
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this.mMinimumVelocity = viewConfiguration.getScaledMinimumFlingVelocity();
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this.mMaximumVelocity = viewConfiguration.getScaledMaximumFlingVelocity();
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}
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@Override // android.view.ViewGroup
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public void addView(@NonNull View view) {
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if (getChildCount() > 0) {
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throw new IllegalStateException("ScrollView can host only one direct child");
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}
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super.addView(view);
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}
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@Override // android.view.ViewGroup
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public void addView(View view, int i) {
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if (getChildCount() > 0) {
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throw new IllegalStateException("ScrollView can host only one direct child");
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}
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super.addView(view, i);
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}
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@Override // android.view.ViewGroup, android.view.ViewManager
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public void addView(View view, ViewGroup.LayoutParams layoutParams) {
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if (getChildCount() > 0) {
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throw new IllegalStateException("ScrollView can host only one direct child");
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}
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super.addView(view, layoutParams);
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}
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@Override // android.view.ViewGroup
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public void addView(View view, int i, ViewGroup.LayoutParams layoutParams) {
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if (getChildCount() > 0) {
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throw new IllegalStateException("ScrollView can host only one direct child");
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}
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super.addView(view, i, layoutParams);
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}
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private boolean canScroll() {
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if (getChildCount() <= 0) {
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return false;
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}
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View childAt = getChildAt(0);
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FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
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return (childAt.getHeight() + layoutParams.topMargin) + layoutParams.bottomMargin > (getHeight() - getPaddingTop()) - getPaddingBottom();
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}
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public void setFillViewport(boolean z) {
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if (z != this.mFillViewport) {
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this.mFillViewport = z;
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requestLayout();
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}
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}
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@Override // android.view.View
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public void onScrollChanged(int i, int i2, int i3, int i4) {
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super.onScrollChanged(i, i2, i3, i4);
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OnScrollChangeListener onScrollChangeListener = this.mOnScrollChangeListener;
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if (onScrollChangeListener != null) {
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onScrollChangeListener.onScrollChange(this, i, i2, i3, i4);
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}
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}
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@Override // android.widget.FrameLayout, android.view.View
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public void onMeasure(int i, int i2) {
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super.onMeasure(i, i2);
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if (this.mFillViewport && View.MeasureSpec.getMode(i2) != 0 && getChildCount() > 0) {
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View childAt = getChildAt(0);
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FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
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int measuredHeight = childAt.getMeasuredHeight();
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int measuredHeight2 = (((getMeasuredHeight() - getPaddingTop()) - getPaddingBottom()) - layoutParams.topMargin) - layoutParams.bottomMargin;
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if (measuredHeight < measuredHeight2) {
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childAt.measure(ViewGroup.getChildMeasureSpec(i, getPaddingLeft() + getPaddingRight() + layoutParams.leftMargin + layoutParams.rightMargin, layoutParams.width), View.MeasureSpec.makeMeasureSpec(measuredHeight2, 1073741824));
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}
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}
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}
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@Override // android.view.ViewGroup, android.view.View
|
|
public boolean dispatchKeyEvent(KeyEvent keyEvent) {
|
|
return super.dispatchKeyEvent(keyEvent) || executeKeyEvent(keyEvent);
|
|
}
|
|
|
|
public boolean executeKeyEvent(@NonNull KeyEvent keyEvent) {
|
|
this.mTempRect.setEmpty();
|
|
if (!canScroll()) {
|
|
if (!isFocused() || keyEvent.getKeyCode() == 4) {
|
|
return false;
|
|
}
|
|
View findFocus = findFocus();
|
|
if (findFocus == this) {
|
|
findFocus = null;
|
|
}
|
|
View findNextFocus = FocusFinder.getInstance().findNextFocus(this, findFocus, 130);
|
|
return (findNextFocus == null || findNextFocus == this || !findNextFocus.requestFocus(130)) ? false : true;
|
|
}
|
|
if (keyEvent.getAction() != 0) {
|
|
return false;
|
|
}
|
|
int keyCode = keyEvent.getKeyCode();
|
|
if (keyCode == 19) {
|
|
if (keyEvent.isAltPressed()) {
|
|
return fullScroll(33);
|
|
}
|
|
return arrowScroll(33);
|
|
}
|
|
if (keyCode == 20) {
|
|
if (keyEvent.isAltPressed()) {
|
|
return fullScroll(130);
|
|
}
|
|
return arrowScroll(130);
|
|
}
|
|
if (keyCode == 62) {
|
|
pageScroll(keyEvent.isShiftPressed() ? 33 : 130);
|
|
return false;
|
|
}
|
|
if (keyCode == 92) {
|
|
return fullScroll(33);
|
|
}
|
|
if (keyCode == 93) {
|
|
return fullScroll(130);
|
|
}
|
|
if (keyCode == 122) {
|
|
pageScroll(33);
|
|
return false;
|
|
}
|
|
if (keyCode != 123) {
|
|
return false;
|
|
}
|
|
pageScroll(130);
|
|
return false;
|
|
}
|
|
|
|
private boolean inChild(int i, int i2) {
|
|
if (getChildCount() <= 0) {
|
|
return false;
|
|
}
|
|
int scrollY = getScrollY();
|
|
View childAt = getChildAt(0);
|
|
return i2 >= childAt.getTop() - scrollY && i2 < childAt.getBottom() - scrollY && i >= childAt.getLeft() && i < childAt.getRight();
|
|
}
|
|
|
|
private void initOrResetVelocityTracker() {
|
|
VelocityTracker velocityTracker = this.mVelocityTracker;
|
|
if (velocityTracker == null) {
|
|
this.mVelocityTracker = VelocityTracker.obtain();
|
|
} else {
|
|
velocityTracker.clear();
|
|
}
|
|
}
|
|
|
|
private void initVelocityTrackerIfNotExists() {
|
|
if (this.mVelocityTracker == null) {
|
|
this.mVelocityTracker = VelocityTracker.obtain();
|
|
}
|
|
}
|
|
|
|
private void recycleVelocityTracker() {
|
|
VelocityTracker velocityTracker = this.mVelocityTracker;
|
|
if (velocityTracker != null) {
|
|
velocityTracker.recycle();
|
|
this.mVelocityTracker = null;
|
|
}
|
|
}
|
|
|
|
@Override // android.view.ViewGroup, android.view.ViewParent
|
|
public void requestDisallowInterceptTouchEvent(boolean z) {
|
|
if (z) {
|
|
recycleVelocityTracker();
|
|
}
|
|
super.requestDisallowInterceptTouchEvent(z);
|
|
}
|
|
|
|
@Override // android.view.ViewGroup
|
|
public boolean onInterceptTouchEvent(@NonNull MotionEvent motionEvent) {
|
|
int action = motionEvent.getAction();
|
|
boolean z = true;
|
|
if (action == 2 && this.mIsBeingDragged) {
|
|
return true;
|
|
}
|
|
int i = action & 255;
|
|
if (i == 0) {
|
|
int y = (int) motionEvent.getY();
|
|
if (!inChild((int) motionEvent.getX(), y)) {
|
|
if (!stopGlowAnimations(motionEvent) && this.mScroller.isFinished()) {
|
|
z = false;
|
|
}
|
|
this.mIsBeingDragged = z;
|
|
recycleVelocityTracker();
|
|
} else {
|
|
this.mLastMotionY = y;
|
|
this.mActivePointerId = motionEvent.getPointerId(0);
|
|
initOrResetVelocityTracker();
|
|
this.mVelocityTracker.addMovement(motionEvent);
|
|
this.mScroller.computeScrollOffset();
|
|
if (!stopGlowAnimations(motionEvent) && this.mScroller.isFinished()) {
|
|
z = false;
|
|
}
|
|
this.mIsBeingDragged = z;
|
|
startNestedScroll(2, 0);
|
|
}
|
|
} else {
|
|
if (i != 1) {
|
|
if (i == 2) {
|
|
int i2 = this.mActivePointerId;
|
|
if (i2 != -1) {
|
|
int findPointerIndex = motionEvent.findPointerIndex(i2);
|
|
if (findPointerIndex == -1) {
|
|
Log.e(TAG, "Invalid pointerId=" + i2 + " in onInterceptTouchEvent");
|
|
} else {
|
|
int y2 = (int) motionEvent.getY(findPointerIndex);
|
|
if (Math.abs(y2 - this.mLastMotionY) > this.mTouchSlop && (2 & getNestedScrollAxes()) == 0) {
|
|
this.mIsBeingDragged = true;
|
|
this.mLastMotionY = y2;
|
|
initVelocityTrackerIfNotExists();
|
|
this.mVelocityTracker.addMovement(motionEvent);
|
|
this.mNestedYOffset = 0;
|
|
ViewParent parent = getParent();
|
|
if (parent != null) {
|
|
parent.requestDisallowInterceptTouchEvent(true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if (i != 3) {
|
|
if (i == 6) {
|
|
onSecondaryPointerUp(motionEvent);
|
|
}
|
|
}
|
|
}
|
|
this.mIsBeingDragged = false;
|
|
this.mActivePointerId = -1;
|
|
recycleVelocityTracker();
|
|
if (this.mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) {
|
|
postInvalidateOnAnimation();
|
|
}
|
|
stopNestedScroll(0);
|
|
}
|
|
return this.mIsBeingDragged;
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public boolean onTouchEvent(@NonNull MotionEvent motionEvent) {
|
|
ViewParent parent;
|
|
initVelocityTrackerIfNotExists();
|
|
int actionMasked = motionEvent.getActionMasked();
|
|
if (actionMasked == 0) {
|
|
this.mNestedYOffset = 0;
|
|
}
|
|
MotionEvent obtain = MotionEvent.obtain(motionEvent);
|
|
obtain.offsetLocation(0.0f, this.mNestedYOffset);
|
|
if (actionMasked != 0) {
|
|
if (actionMasked == 1) {
|
|
VelocityTracker velocityTracker = this.mVelocityTracker;
|
|
velocityTracker.computeCurrentVelocity(1000, this.mMaximumVelocity);
|
|
int yVelocity = (int) velocityTracker.getYVelocity(this.mActivePointerId);
|
|
if (Math.abs(yVelocity) >= this.mMinimumVelocity) {
|
|
if (!edgeEffectFling(yVelocity)) {
|
|
int i = -yVelocity;
|
|
float f = i;
|
|
if (!dispatchNestedPreFling(0.0f, f)) {
|
|
dispatchNestedFling(0.0f, f, true);
|
|
fling(i);
|
|
}
|
|
}
|
|
} else if (this.mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) {
|
|
postInvalidateOnAnimation();
|
|
}
|
|
endTouchDrag();
|
|
} else if (actionMasked == 2) {
|
|
int findPointerIndex = motionEvent.findPointerIndex(this.mActivePointerId);
|
|
if (findPointerIndex == -1) {
|
|
Log.e(TAG, "Invalid pointerId=" + this.mActivePointerId + " in onTouchEvent");
|
|
} else {
|
|
int y = (int) motionEvent.getY(findPointerIndex);
|
|
int i2 = this.mLastMotionY - y;
|
|
int releaseVerticalGlow = i2 - releaseVerticalGlow(i2, motionEvent.getX(findPointerIndex));
|
|
if (!this.mIsBeingDragged && Math.abs(releaseVerticalGlow) > this.mTouchSlop) {
|
|
ViewParent parent2 = getParent();
|
|
if (parent2 != null) {
|
|
parent2.requestDisallowInterceptTouchEvent(true);
|
|
}
|
|
this.mIsBeingDragged = true;
|
|
releaseVerticalGlow = releaseVerticalGlow > 0 ? releaseVerticalGlow - this.mTouchSlop : releaseVerticalGlow + this.mTouchSlop;
|
|
}
|
|
if (this.mIsBeingDragged) {
|
|
int scrollBy = scrollBy(releaseVerticalGlow, (int) motionEvent.getX(findPointerIndex), 0, false);
|
|
this.mLastMotionY = y - scrollBy;
|
|
this.mNestedYOffset += scrollBy;
|
|
}
|
|
}
|
|
} else if (actionMasked == 3) {
|
|
if (this.mIsBeingDragged && getChildCount() > 0 && this.mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) {
|
|
postInvalidateOnAnimation();
|
|
}
|
|
endTouchDrag();
|
|
} else if (actionMasked == 5) {
|
|
int actionIndex = motionEvent.getActionIndex();
|
|
this.mLastMotionY = (int) motionEvent.getY(actionIndex);
|
|
this.mActivePointerId = motionEvent.getPointerId(actionIndex);
|
|
} else if (actionMasked == 6) {
|
|
onSecondaryPointerUp(motionEvent);
|
|
this.mLastMotionY = (int) motionEvent.getY(motionEvent.findPointerIndex(this.mActivePointerId));
|
|
}
|
|
} else {
|
|
if (getChildCount() == 0) {
|
|
return false;
|
|
}
|
|
if (this.mIsBeingDragged && (parent = getParent()) != null) {
|
|
parent.requestDisallowInterceptTouchEvent(true);
|
|
}
|
|
if (!this.mScroller.isFinished()) {
|
|
abortAnimatedScroll();
|
|
}
|
|
initializeTouchDrag((int) motionEvent.getY(), motionEvent.getPointerId(0));
|
|
}
|
|
VelocityTracker velocityTracker2 = this.mVelocityTracker;
|
|
if (velocityTracker2 != null) {
|
|
velocityTracker2.addMovement(obtain);
|
|
}
|
|
obtain.recycle();
|
|
return true;
|
|
}
|
|
|
|
private void initializeTouchDrag(int i, int i2) {
|
|
this.mLastMotionY = i;
|
|
this.mActivePointerId = i2;
|
|
startNestedScroll(2, 0);
|
|
}
|
|
|
|
private void endTouchDrag() {
|
|
this.mActivePointerId = -1;
|
|
this.mIsBeingDragged = false;
|
|
recycleVelocityTracker();
|
|
stopNestedScroll(0);
|
|
this.mEdgeGlowTop.onRelease();
|
|
this.mEdgeGlowBottom.onRelease();
|
|
}
|
|
|
|
private int scrollBy(int i, int i2, int i3, boolean z) {
|
|
int i4;
|
|
int i5;
|
|
VelocityTracker velocityTracker;
|
|
if (i3 == 1) {
|
|
startNestedScroll(2, i3);
|
|
}
|
|
if (dispatchNestedPreScroll(0, i, this.mScrollConsumed, this.mScrollOffset, i3)) {
|
|
i4 = i - this.mScrollConsumed[1];
|
|
i5 = this.mScrollOffset[1];
|
|
} else {
|
|
i4 = i;
|
|
i5 = 0;
|
|
}
|
|
int scrollY = getScrollY();
|
|
int scrollRange = getScrollRange();
|
|
boolean z2 = canOverScroll() && !z;
|
|
boolean z3 = overScrollByCompat(0, i4, 0, scrollY, 0, scrollRange, 0, 0, true) && !hasNestedScrollingParent(i3);
|
|
int scrollY2 = getScrollY() - scrollY;
|
|
int[] iArr = this.mScrollConsumed;
|
|
iArr[1] = 0;
|
|
dispatchNestedScroll(0, scrollY2, 0, i4 - scrollY2, this.mScrollOffset, i3, iArr);
|
|
int i6 = i5 + this.mScrollOffset[1];
|
|
int i7 = i4 - this.mScrollConsumed[1];
|
|
int i8 = scrollY + i7;
|
|
if (i8 < 0) {
|
|
if (z2) {
|
|
EdgeEffectCompat.onPullDistance(this.mEdgeGlowTop, (-i7) / getHeight(), i2 / getWidth());
|
|
if (!this.mEdgeGlowBottom.isFinished()) {
|
|
this.mEdgeGlowBottom.onRelease();
|
|
}
|
|
}
|
|
} else if (i8 > scrollRange && z2) {
|
|
EdgeEffectCompat.onPullDistance(this.mEdgeGlowBottom, i7 / getHeight(), 1.0f - (i2 / getWidth()));
|
|
if (!this.mEdgeGlowTop.isFinished()) {
|
|
this.mEdgeGlowTop.onRelease();
|
|
}
|
|
}
|
|
if (!this.mEdgeGlowTop.isFinished() || !this.mEdgeGlowBottom.isFinished()) {
|
|
postInvalidateOnAnimation();
|
|
} else if (z3 && i3 == 0 && (velocityTracker = this.mVelocityTracker) != null) {
|
|
velocityTracker.clear();
|
|
}
|
|
if (i3 == 1) {
|
|
stopNestedScroll(i3);
|
|
this.mEdgeGlowTop.onRelease();
|
|
this.mEdgeGlowBottom.onRelease();
|
|
}
|
|
return i6;
|
|
}
|
|
|
|
private boolean shouldAbsorb(@NonNull EdgeEffect edgeEffect, int i) {
|
|
if (i > 0) {
|
|
return true;
|
|
}
|
|
return getSplineFlingDistance(-i) < EdgeEffectCompat.getDistance(edgeEffect) * ((float) getHeight());
|
|
}
|
|
|
|
public int consumeFlingInVerticalStretch(int i) {
|
|
int height = getHeight();
|
|
if (i > 0 && EdgeEffectCompat.getDistance(this.mEdgeGlowTop) != 0.0f) {
|
|
int round = Math.round(((-height) / FLING_DESTRETCH_FACTOR) * EdgeEffectCompat.onPullDistance(this.mEdgeGlowTop, ((-i) * FLING_DESTRETCH_FACTOR) / height, MAX_SCROLL_FACTOR));
|
|
if (round != i) {
|
|
this.mEdgeGlowTop.finish();
|
|
}
|
|
return i - round;
|
|
}
|
|
if (i >= 0 || EdgeEffectCompat.getDistance(this.mEdgeGlowBottom) == 0.0f) {
|
|
return i;
|
|
}
|
|
float f = height;
|
|
int round2 = Math.round((f / FLING_DESTRETCH_FACTOR) * EdgeEffectCompat.onPullDistance(this.mEdgeGlowBottom, (i * FLING_DESTRETCH_FACTOR) / f, MAX_SCROLL_FACTOR));
|
|
if (round2 != i) {
|
|
this.mEdgeGlowBottom.finish();
|
|
}
|
|
return i - round2;
|
|
}
|
|
|
|
private float getSplineFlingDistance(int i) {
|
|
double log = Math.log((Math.abs(i) * INFLEXION) / (this.mPhysicalCoeff * SCROLL_FRICTION));
|
|
float f = DECELERATION_RATE;
|
|
return (float) (this.mPhysicalCoeff * SCROLL_FRICTION * Math.exp((f / (f - 1.0d)) * log));
|
|
}
|
|
|
|
private boolean edgeEffectFling(int i) {
|
|
if (EdgeEffectCompat.getDistance(this.mEdgeGlowTop) != 0.0f) {
|
|
if (shouldAbsorb(this.mEdgeGlowTop, i)) {
|
|
this.mEdgeGlowTop.onAbsorb(i);
|
|
} else {
|
|
fling(-i);
|
|
}
|
|
} else {
|
|
if (EdgeEffectCompat.getDistance(this.mEdgeGlowBottom) == 0.0f) {
|
|
return false;
|
|
}
|
|
int i2 = -i;
|
|
if (shouldAbsorb(this.mEdgeGlowBottom, i2)) {
|
|
this.mEdgeGlowBottom.onAbsorb(i2);
|
|
} else {
|
|
fling(i2);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private boolean stopGlowAnimations(MotionEvent motionEvent) {
|
|
boolean z;
|
|
if (EdgeEffectCompat.getDistance(this.mEdgeGlowTop) != 0.0f) {
|
|
EdgeEffectCompat.onPullDistance(this.mEdgeGlowTop, 0.0f, motionEvent.getX() / getWidth());
|
|
z = true;
|
|
} else {
|
|
z = false;
|
|
}
|
|
if (EdgeEffectCompat.getDistance(this.mEdgeGlowBottom) == 0.0f) {
|
|
return z;
|
|
}
|
|
EdgeEffectCompat.onPullDistance(this.mEdgeGlowBottom, 0.0f, 1.0f - (motionEvent.getX() / getWidth()));
|
|
return true;
|
|
}
|
|
|
|
private void onSecondaryPointerUp(MotionEvent motionEvent) {
|
|
int actionIndex = motionEvent.getActionIndex();
|
|
if (motionEvent.getPointerId(actionIndex) == this.mActivePointerId) {
|
|
int i = actionIndex == 0 ? 1 : 0;
|
|
this.mLastMotionY = (int) motionEvent.getY(i);
|
|
this.mActivePointerId = motionEvent.getPointerId(i);
|
|
VelocityTracker velocityTracker = this.mVelocityTracker;
|
|
if (velocityTracker != null) {
|
|
velocityTracker.clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public boolean onGenericMotionEvent(@NonNull MotionEvent motionEvent) {
|
|
int i;
|
|
int i2;
|
|
float f;
|
|
if (motionEvent.getAction() == 8 && !this.mIsBeingDragged) {
|
|
if (MotionEventCompat.isFromSource(motionEvent, 2)) {
|
|
i = 9;
|
|
f = motionEvent.getAxisValue(9);
|
|
i2 = (int) motionEvent.getX();
|
|
} else if (MotionEventCompat.isFromSource(motionEvent, 4194304)) {
|
|
float axisValue = motionEvent.getAxisValue(26);
|
|
i2 = getWidth() / 2;
|
|
i = 26;
|
|
f = axisValue;
|
|
} else {
|
|
i = 0;
|
|
i2 = 0;
|
|
f = 0.0f;
|
|
}
|
|
if (f != 0.0f) {
|
|
scrollBy(-((int) (f * getVerticalScrollFactorCompat())), i2, 1, MotionEventCompat.isFromSource(motionEvent, 8194));
|
|
if (i != 0) {
|
|
this.mDifferentialMotionFlingController.onMotionEvent(motionEvent, i);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private boolean canOverScroll() {
|
|
int overScrollMode = getOverScrollMode();
|
|
if (overScrollMode != 0) {
|
|
return overScrollMode == 1 && getScrollRange() > 0;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
@VisibleForTesting
|
|
public float getVerticalScrollFactorCompat() {
|
|
if (this.mVerticalScrollFactor == 0.0f) {
|
|
TypedValue typedValue = new TypedValue();
|
|
Context context = getContext();
|
|
if (!context.getTheme().resolveAttribute(R.attr.listPreferredItemHeight, typedValue, true)) {
|
|
throw new IllegalStateException("Expected theme to define listPreferredItemHeight.");
|
|
}
|
|
this.mVerticalScrollFactor = typedValue.getDimension(context.getResources().getDisplayMetrics());
|
|
}
|
|
return this.mVerticalScrollFactor;
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public void onOverScrolled(int i, int i2, boolean z, boolean z2) {
|
|
super.scrollTo(i, i2);
|
|
}
|
|
|
|
public boolean overScrollByCompat(int i, int i2, int i3, int i4, int i5, int i6, int i7, int i8, boolean z) {
|
|
boolean z2;
|
|
boolean z3;
|
|
int overScrollMode = getOverScrollMode();
|
|
boolean z4 = computeHorizontalScrollRange() > computeHorizontalScrollExtent();
|
|
boolean z5 = computeVerticalScrollRange() > computeVerticalScrollExtent();
|
|
boolean z6 = overScrollMode == 0 || (overScrollMode == 1 && z4);
|
|
boolean z7 = overScrollMode == 0 || (overScrollMode == 1 && z5);
|
|
int i9 = i3 + i;
|
|
int i10 = !z6 ? 0 : i7;
|
|
int i11 = i4 + i2;
|
|
int i12 = !z7 ? 0 : i8;
|
|
int i13 = -i10;
|
|
int i14 = i10 + i5;
|
|
int i15 = -i12;
|
|
int i16 = i12 + i6;
|
|
if (i9 > i14) {
|
|
i9 = i14;
|
|
z2 = true;
|
|
} else if (i9 < i13) {
|
|
z2 = true;
|
|
i9 = i13;
|
|
} else {
|
|
z2 = false;
|
|
}
|
|
if (i11 > i16) {
|
|
i11 = i16;
|
|
z3 = true;
|
|
} else if (i11 < i15) {
|
|
z3 = true;
|
|
i11 = i15;
|
|
} else {
|
|
z3 = false;
|
|
}
|
|
if (z3 && !hasNestedScrollingParent(1)) {
|
|
this.mScroller.springBack(i9, i11, 0, 0, 0, getScrollRange());
|
|
}
|
|
onOverScrolled(i9, i11, z2, z3);
|
|
return z2 || z3;
|
|
}
|
|
|
|
public int getScrollRange() {
|
|
if (getChildCount() <= 0) {
|
|
return 0;
|
|
}
|
|
View childAt = getChildAt(0);
|
|
FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
|
|
return Math.max(0, ((childAt.getHeight() + layoutParams.topMargin) + layoutParams.bottomMargin) - ((getHeight() - getPaddingTop()) - getPaddingBottom()));
|
|
}
|
|
|
|
private View findFocusableViewInBounds(boolean z, int i, int i2) {
|
|
ArrayList<View> focusables = getFocusables(2);
|
|
int size = focusables.size();
|
|
View view = null;
|
|
boolean z2 = false;
|
|
for (int i3 = 0; i3 < size; i3++) {
|
|
View view2 = focusables.get(i3);
|
|
int top = view2.getTop();
|
|
int bottom = view2.getBottom();
|
|
if (i < bottom && top < i2) {
|
|
boolean z3 = i < top && bottom < i2;
|
|
if (view == null) {
|
|
view = view2;
|
|
z2 = z3;
|
|
} else {
|
|
boolean z4 = (z && top < view.getTop()) || (!z && bottom > view.getBottom());
|
|
if (z2) {
|
|
if (z3) {
|
|
if (!z4) {
|
|
}
|
|
view = view2;
|
|
}
|
|
} else if (z3) {
|
|
view = view2;
|
|
z2 = true;
|
|
} else {
|
|
if (!z4) {
|
|
}
|
|
view = view2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return view;
|
|
}
|
|
|
|
public boolean pageScroll(int i) {
|
|
boolean z = i == 130;
|
|
int height = getHeight();
|
|
if (z) {
|
|
this.mTempRect.top = getScrollY() + height;
|
|
int childCount = getChildCount();
|
|
if (childCount > 0) {
|
|
View childAt = getChildAt(childCount - 1);
|
|
int bottom = childAt.getBottom() + ((FrameLayout.LayoutParams) childAt.getLayoutParams()).bottomMargin + getPaddingBottom();
|
|
Rect rect = this.mTempRect;
|
|
if (rect.top + height > bottom) {
|
|
rect.top = bottom - height;
|
|
}
|
|
}
|
|
} else {
|
|
this.mTempRect.top = getScrollY() - height;
|
|
Rect rect2 = this.mTempRect;
|
|
if (rect2.top < 0) {
|
|
rect2.top = 0;
|
|
}
|
|
}
|
|
Rect rect3 = this.mTempRect;
|
|
int i2 = rect3.top;
|
|
int i3 = height + i2;
|
|
rect3.bottom = i3;
|
|
return scrollAndFocus(i, i2, i3);
|
|
}
|
|
|
|
public boolean fullScroll(int i) {
|
|
int childCount;
|
|
boolean z = i == 130;
|
|
int height = getHeight();
|
|
Rect rect = this.mTempRect;
|
|
rect.top = 0;
|
|
rect.bottom = height;
|
|
if (z && (childCount = getChildCount()) > 0) {
|
|
View childAt = getChildAt(childCount - 1);
|
|
this.mTempRect.bottom = childAt.getBottom() + ((FrameLayout.LayoutParams) childAt.getLayoutParams()).bottomMargin + getPaddingBottom();
|
|
Rect rect2 = this.mTempRect;
|
|
rect2.top = rect2.bottom - height;
|
|
}
|
|
Rect rect3 = this.mTempRect;
|
|
return scrollAndFocus(i, rect3.top, rect3.bottom);
|
|
}
|
|
|
|
private boolean scrollAndFocus(int i, int i2, int i3) {
|
|
int height = getHeight();
|
|
int scrollY = getScrollY();
|
|
int i4 = height + scrollY;
|
|
boolean z = false;
|
|
boolean z2 = i == 33;
|
|
View findFocusableViewInBounds = findFocusableViewInBounds(z2, i2, i3);
|
|
if (findFocusableViewInBounds == null) {
|
|
findFocusableViewInBounds = this;
|
|
}
|
|
if (i2 < scrollY || i3 > i4) {
|
|
scrollBy(z2 ? i2 - scrollY : i3 - i4, 0, 1, true);
|
|
z = true;
|
|
}
|
|
if (findFocusableViewInBounds != findFocus()) {
|
|
findFocusableViewInBounds.requestFocus(i);
|
|
}
|
|
return z;
|
|
}
|
|
|
|
public boolean arrowScroll(int i) {
|
|
View findFocus = findFocus();
|
|
if (findFocus == this) {
|
|
findFocus = null;
|
|
}
|
|
View findNextFocus = FocusFinder.getInstance().findNextFocus(this, findFocus, i);
|
|
int maxScrollAmount = getMaxScrollAmount();
|
|
if (findNextFocus != null && isWithinDeltaOfScreen(findNextFocus, maxScrollAmount, getHeight())) {
|
|
findNextFocus.getDrawingRect(this.mTempRect);
|
|
offsetDescendantRectToMyCoords(findNextFocus, this.mTempRect);
|
|
scrollBy(computeScrollDeltaToGetChildRectOnScreen(this.mTempRect), 0, 1, true);
|
|
findNextFocus.requestFocus(i);
|
|
} else {
|
|
if (i == 33 && getScrollY() < maxScrollAmount) {
|
|
maxScrollAmount = getScrollY();
|
|
} else if (i == 130 && getChildCount() > 0) {
|
|
View childAt = getChildAt(0);
|
|
maxScrollAmount = Math.min((childAt.getBottom() + ((FrameLayout.LayoutParams) childAt.getLayoutParams()).bottomMargin) - ((getScrollY() + getHeight()) - getPaddingBottom()), maxScrollAmount);
|
|
}
|
|
if (maxScrollAmount == 0) {
|
|
return false;
|
|
}
|
|
if (i != 130) {
|
|
maxScrollAmount = -maxScrollAmount;
|
|
}
|
|
scrollBy(maxScrollAmount, 0, 1, true);
|
|
}
|
|
if (findFocus != null && findFocus.isFocused() && isOffScreen(findFocus)) {
|
|
int descendantFocusability = getDescendantFocusability();
|
|
setDescendantFocusability(131072);
|
|
requestFocus();
|
|
setDescendantFocusability(descendantFocusability);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private boolean isOffScreen(View view) {
|
|
return !isWithinDeltaOfScreen(view, 0, getHeight());
|
|
}
|
|
|
|
private boolean isWithinDeltaOfScreen(View view, int i, int i2) {
|
|
view.getDrawingRect(this.mTempRect);
|
|
offsetDescendantRectToMyCoords(view, this.mTempRect);
|
|
return this.mTempRect.bottom + i >= getScrollY() && this.mTempRect.top - i <= getScrollY() + i2;
|
|
}
|
|
|
|
private void doScrollY(int i) {
|
|
if (i != 0) {
|
|
if (this.mSmoothScrollingEnabled) {
|
|
smoothScrollBy(0, i);
|
|
} else {
|
|
scrollBy(0, i);
|
|
}
|
|
}
|
|
}
|
|
|
|
public final void smoothScrollBy(int i, int i2) {
|
|
smoothScrollBy(i, i2, 250, false);
|
|
}
|
|
|
|
public final void smoothScrollBy(int i, int i2, int i3) {
|
|
smoothScrollBy(i, i2, i3, false);
|
|
}
|
|
|
|
private void smoothScrollBy(int i, int i2, int i3, boolean z) {
|
|
if (getChildCount() == 0) {
|
|
return;
|
|
}
|
|
if (AnimationUtils.currentAnimationTimeMillis() - this.mLastScroll > 250) {
|
|
View childAt = getChildAt(0);
|
|
FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
|
|
int height = childAt.getHeight() + layoutParams.topMargin + layoutParams.bottomMargin;
|
|
int height2 = (getHeight() - getPaddingTop()) - getPaddingBottom();
|
|
int scrollY = getScrollY();
|
|
this.mScroller.startScroll(getScrollX(), scrollY, 0, Math.max(0, Math.min(i2 + scrollY, Math.max(0, height - height2))) - scrollY, i3);
|
|
runAnimatedScroll(z);
|
|
} else {
|
|
if (!this.mScroller.isFinished()) {
|
|
abortAnimatedScroll();
|
|
}
|
|
scrollBy(i, i2);
|
|
}
|
|
this.mLastScroll = AnimationUtils.currentAnimationTimeMillis();
|
|
}
|
|
|
|
public final void smoothScrollTo(int i, int i2) {
|
|
smoothScrollTo(i, i2, 250, false);
|
|
}
|
|
|
|
public final void smoothScrollTo(int i, int i2, int i3) {
|
|
smoothScrollTo(i, i2, i3, false);
|
|
}
|
|
|
|
public void smoothScrollTo(int i, int i2, boolean z) {
|
|
smoothScrollTo(i, i2, 250, z);
|
|
}
|
|
|
|
public void smoothScrollTo(int i, int i2, int i3, boolean z) {
|
|
smoothScrollBy(i - getScrollX(), i2 - getScrollY(), i3, z);
|
|
}
|
|
|
|
@Override // android.view.View, androidx.core.view.ScrollingView
|
|
@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
|
|
public int computeVerticalScrollRange() {
|
|
int childCount = getChildCount();
|
|
int height = (getHeight() - getPaddingBottom()) - getPaddingTop();
|
|
if (childCount == 0) {
|
|
return height;
|
|
}
|
|
View childAt = getChildAt(0);
|
|
int bottom = childAt.getBottom() + ((FrameLayout.LayoutParams) childAt.getLayoutParams()).bottomMargin;
|
|
int scrollY = getScrollY();
|
|
int max = Math.max(0, bottom - height);
|
|
return scrollY < 0 ? bottom - scrollY : scrollY > max ? bottom + (scrollY - max) : bottom;
|
|
}
|
|
|
|
@Override // android.view.View, androidx.core.view.ScrollingView
|
|
@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
|
|
public int computeVerticalScrollOffset() {
|
|
return Math.max(0, super.computeVerticalScrollOffset());
|
|
}
|
|
|
|
@Override // android.view.View, androidx.core.view.ScrollingView
|
|
@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
|
|
public int computeVerticalScrollExtent() {
|
|
return super.computeVerticalScrollExtent();
|
|
}
|
|
|
|
@Override // android.view.View, androidx.core.view.ScrollingView
|
|
@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
|
|
public int computeHorizontalScrollRange() {
|
|
return super.computeHorizontalScrollRange();
|
|
}
|
|
|
|
@Override // android.view.View, androidx.core.view.ScrollingView
|
|
@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
|
|
public int computeHorizontalScrollOffset() {
|
|
return super.computeHorizontalScrollOffset();
|
|
}
|
|
|
|
@Override // android.view.View, androidx.core.view.ScrollingView
|
|
@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
|
|
public int computeHorizontalScrollExtent() {
|
|
return super.computeHorizontalScrollExtent();
|
|
}
|
|
|
|
@Override // android.view.ViewGroup
|
|
public void measureChild(@NonNull View view, int i, int i2) {
|
|
view.measure(ViewGroup.getChildMeasureSpec(i, getPaddingLeft() + getPaddingRight(), view.getLayoutParams().width), View.MeasureSpec.makeMeasureSpec(0, 0));
|
|
}
|
|
|
|
@Override // android.view.ViewGroup
|
|
public void measureChildWithMargins(View view, int i, int i2, int i3, int i4) {
|
|
ViewGroup.MarginLayoutParams marginLayoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
|
|
view.measure(ViewGroup.getChildMeasureSpec(i, getPaddingLeft() + getPaddingRight() + marginLayoutParams.leftMargin + marginLayoutParams.rightMargin + i2, marginLayoutParams.width), View.MeasureSpec.makeMeasureSpec(marginLayoutParams.topMargin + marginLayoutParams.bottomMargin, 0));
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public void computeScroll() {
|
|
if (this.mScroller.isFinished()) {
|
|
return;
|
|
}
|
|
this.mScroller.computeScrollOffset();
|
|
int currY = this.mScroller.getCurrY();
|
|
int consumeFlingInVerticalStretch = consumeFlingInVerticalStretch(currY - this.mLastScrollerY);
|
|
this.mLastScrollerY = currY;
|
|
int[] iArr = this.mScrollConsumed;
|
|
iArr[1] = 0;
|
|
dispatchNestedPreScroll(0, consumeFlingInVerticalStretch, iArr, null, 1);
|
|
int i = consumeFlingInVerticalStretch - this.mScrollConsumed[1];
|
|
int scrollRange = getScrollRange();
|
|
if (BuildCompat.isAtLeastV()) {
|
|
Api35Impl.setFrameContentVelocity(this, Math.abs(this.mScroller.getCurrVelocity()));
|
|
}
|
|
if (i != 0) {
|
|
int scrollY = getScrollY();
|
|
overScrollByCompat(0, i, getScrollX(), scrollY, 0, scrollRange, 0, 0, false);
|
|
int scrollY2 = getScrollY() - scrollY;
|
|
int i2 = i - scrollY2;
|
|
int[] iArr2 = this.mScrollConsumed;
|
|
iArr2[1] = 0;
|
|
dispatchNestedScroll(0, scrollY2, 0, i2, this.mScrollOffset, 1, iArr2);
|
|
i = i2 - this.mScrollConsumed[1];
|
|
}
|
|
if (i != 0) {
|
|
int overScrollMode = getOverScrollMode();
|
|
if (overScrollMode == 0 || (overScrollMode == 1 && scrollRange > 0)) {
|
|
if (i < 0) {
|
|
if (this.mEdgeGlowTop.isFinished()) {
|
|
this.mEdgeGlowTop.onAbsorb((int) this.mScroller.getCurrVelocity());
|
|
}
|
|
} else if (this.mEdgeGlowBottom.isFinished()) {
|
|
this.mEdgeGlowBottom.onAbsorb((int) this.mScroller.getCurrVelocity());
|
|
}
|
|
}
|
|
abortAnimatedScroll();
|
|
}
|
|
if (!this.mScroller.isFinished()) {
|
|
postInvalidateOnAnimation();
|
|
} else {
|
|
stopNestedScroll(1);
|
|
}
|
|
}
|
|
|
|
/* JADX WARN: Removed duplicated region for block: B:9:0x0060 */
|
|
/*
|
|
Code decompiled incorrectly, please refer to instructions dump.
|
|
To view partially-correct add '--show-bad-code' argument
|
|
*/
|
|
private int releaseVerticalGlow(int r4, float r5) {
|
|
/*
|
|
r3 = this;
|
|
int r0 = r3.getWidth()
|
|
float r0 = (float) r0
|
|
float r5 = r5 / r0
|
|
float r4 = (float) r4
|
|
int r0 = r3.getHeight()
|
|
float r0 = (float) r0
|
|
float r4 = r4 / r0
|
|
android.widget.EdgeEffect r0 = r3.mEdgeGlowTop
|
|
float r0 = androidx.core.widget.EdgeEffectCompat.getDistance(r0)
|
|
r1 = 0
|
|
int r0 = (r0 > r1 ? 1 : (r0 == r1 ? 0 : -1))
|
|
if (r0 == 0) goto L31
|
|
android.widget.EdgeEffect r0 = r3.mEdgeGlowTop
|
|
float r4 = -r4
|
|
float r4 = androidx.core.widget.EdgeEffectCompat.onPullDistance(r0, r4, r5)
|
|
float r4 = -r4
|
|
android.widget.EdgeEffect r5 = r3.mEdgeGlowTop
|
|
float r5 = androidx.core.widget.EdgeEffectCompat.getDistance(r5)
|
|
int r5 = (r5 > r1 ? 1 : (r5 == r1 ? 0 : -1))
|
|
if (r5 != 0) goto L2f
|
|
android.widget.EdgeEffect r5 = r3.mEdgeGlowTop
|
|
r5.onRelease()
|
|
L2f:
|
|
r1 = r4
|
|
goto L54
|
|
L31:
|
|
android.widget.EdgeEffect r0 = r3.mEdgeGlowBottom
|
|
float r0 = androidx.core.widget.EdgeEffectCompat.getDistance(r0)
|
|
int r0 = (r0 > r1 ? 1 : (r0 == r1 ? 0 : -1))
|
|
if (r0 == 0) goto L54
|
|
android.widget.EdgeEffect r0 = r3.mEdgeGlowBottom
|
|
r2 = 1065353216(0x3f800000, float:1.0)
|
|
float r2 = r2 - r5
|
|
float r4 = androidx.core.widget.EdgeEffectCompat.onPullDistance(r0, r4, r2)
|
|
android.widget.EdgeEffect r5 = r3.mEdgeGlowBottom
|
|
float r5 = androidx.core.widget.EdgeEffectCompat.getDistance(r5)
|
|
int r5 = (r5 > r1 ? 1 : (r5 == r1 ? 0 : -1))
|
|
if (r5 != 0) goto L2f
|
|
android.widget.EdgeEffect r5 = r3.mEdgeGlowBottom
|
|
r5.onRelease()
|
|
goto L2f
|
|
L54:
|
|
int r4 = r3.getHeight()
|
|
float r4 = (float) r4
|
|
float r1 = r1 * r4
|
|
int r4 = java.lang.Math.round(r1)
|
|
if (r4 == 0) goto L63
|
|
r3.invalidate()
|
|
L63:
|
|
return r4
|
|
*/
|
|
throw new UnsupportedOperationException("Method not decompiled: androidx.core.widget.NestedScrollView.releaseVerticalGlow(int, float):int");
|
|
}
|
|
|
|
private void runAnimatedScroll(boolean z) {
|
|
if (z) {
|
|
startNestedScroll(2, 1);
|
|
} else {
|
|
stopNestedScroll(1);
|
|
}
|
|
this.mLastScrollerY = getScrollY();
|
|
postInvalidateOnAnimation();
|
|
}
|
|
|
|
private void abortAnimatedScroll() {
|
|
this.mScroller.abortAnimation();
|
|
stopNestedScroll(1);
|
|
}
|
|
|
|
private void scrollToChild(View view) {
|
|
view.getDrawingRect(this.mTempRect);
|
|
offsetDescendantRectToMyCoords(view, this.mTempRect);
|
|
int computeScrollDeltaToGetChildRectOnScreen = computeScrollDeltaToGetChildRectOnScreen(this.mTempRect);
|
|
if (computeScrollDeltaToGetChildRectOnScreen != 0) {
|
|
scrollBy(0, computeScrollDeltaToGetChildRectOnScreen);
|
|
}
|
|
}
|
|
|
|
private boolean scrollToChildRect(Rect rect, boolean z) {
|
|
int computeScrollDeltaToGetChildRectOnScreen = computeScrollDeltaToGetChildRectOnScreen(rect);
|
|
boolean z2 = computeScrollDeltaToGetChildRectOnScreen != 0;
|
|
if (z2) {
|
|
if (z) {
|
|
scrollBy(0, computeScrollDeltaToGetChildRectOnScreen);
|
|
} else {
|
|
smoothScrollBy(0, computeScrollDeltaToGetChildRectOnScreen);
|
|
}
|
|
}
|
|
return z2;
|
|
}
|
|
|
|
public int computeScrollDeltaToGetChildRectOnScreen(Rect rect) {
|
|
int i;
|
|
int i2;
|
|
if (getChildCount() == 0) {
|
|
return 0;
|
|
}
|
|
int height = getHeight();
|
|
int scrollY = getScrollY();
|
|
int i3 = scrollY + height;
|
|
int verticalFadingEdgeLength = getVerticalFadingEdgeLength();
|
|
if (rect.top > 0) {
|
|
scrollY += verticalFadingEdgeLength;
|
|
}
|
|
View childAt = getChildAt(0);
|
|
FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
|
|
int i4 = rect.bottom < (childAt.getHeight() + layoutParams.topMargin) + layoutParams.bottomMargin ? i3 - verticalFadingEdgeLength : i3;
|
|
int i5 = rect.bottom;
|
|
if (i5 > i4 && rect.top > scrollY) {
|
|
if (rect.height() > height) {
|
|
i2 = rect.top - scrollY;
|
|
} else {
|
|
i2 = rect.bottom - i4;
|
|
}
|
|
return Math.min(i2, (childAt.getBottom() + layoutParams.bottomMargin) - i3);
|
|
}
|
|
if (rect.top >= scrollY || i5 >= i4) {
|
|
return 0;
|
|
}
|
|
if (rect.height() > height) {
|
|
i = 0 - (i4 - rect.bottom);
|
|
} else {
|
|
i = 0 - (scrollY - rect.top);
|
|
}
|
|
return Math.max(i, -getScrollY());
|
|
}
|
|
|
|
@Override // android.view.ViewGroup, android.view.ViewParent
|
|
public void requestChildFocus(View view, View view2) {
|
|
if (this.mIsLayoutDirty) {
|
|
this.mChildToScrollTo = view2;
|
|
} else {
|
|
scrollToChild(view2);
|
|
}
|
|
super.requestChildFocus(view, view2);
|
|
}
|
|
|
|
@Override // android.view.ViewGroup
|
|
public boolean onRequestFocusInDescendants(int i, Rect rect) {
|
|
View findNextFocusFromRect;
|
|
if (i == 2) {
|
|
i = 130;
|
|
} else if (i == 1) {
|
|
i = 33;
|
|
}
|
|
if (rect == null) {
|
|
findNextFocusFromRect = FocusFinder.getInstance().findNextFocus(this, null, i);
|
|
} else {
|
|
findNextFocusFromRect = FocusFinder.getInstance().findNextFocusFromRect(this, rect, i);
|
|
}
|
|
if (findNextFocusFromRect == null || isOffScreen(findNextFocusFromRect)) {
|
|
return false;
|
|
}
|
|
return findNextFocusFromRect.requestFocus(i, rect);
|
|
}
|
|
|
|
@Override // android.view.ViewGroup, android.view.ViewParent
|
|
public boolean requestChildRectangleOnScreen(@NonNull View view, Rect rect, boolean z) {
|
|
rect.offset(view.getLeft() - view.getScrollX(), view.getTop() - view.getScrollY());
|
|
return scrollToChildRect(rect, z);
|
|
}
|
|
|
|
@Override // android.view.View, android.view.ViewParent
|
|
public void requestLayout() {
|
|
this.mIsLayoutDirty = true;
|
|
super.requestLayout();
|
|
}
|
|
|
|
@Override // android.widget.FrameLayout, android.view.ViewGroup, android.view.View
|
|
public void onLayout(boolean z, int i, int i2, int i3, int i4) {
|
|
super.onLayout(z, i, i2, i3, i4);
|
|
int i5 = 0;
|
|
this.mIsLayoutDirty = false;
|
|
View view = this.mChildToScrollTo;
|
|
if (view != null && isViewDescendantOf(view, this)) {
|
|
scrollToChild(this.mChildToScrollTo);
|
|
}
|
|
this.mChildToScrollTo = null;
|
|
if (!this.mIsLaidOut) {
|
|
if (this.mSavedState != null) {
|
|
scrollTo(getScrollX(), this.mSavedState.scrollPosition);
|
|
this.mSavedState = null;
|
|
}
|
|
if (getChildCount() > 0) {
|
|
View childAt = getChildAt(0);
|
|
FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
|
|
i5 = childAt.getMeasuredHeight() + layoutParams.topMargin + layoutParams.bottomMargin;
|
|
}
|
|
int paddingTop = ((i4 - i2) - getPaddingTop()) - getPaddingBottom();
|
|
int scrollY = getScrollY();
|
|
int clamp = clamp(scrollY, paddingTop, i5);
|
|
if (clamp != scrollY) {
|
|
scrollTo(getScrollX(), clamp);
|
|
}
|
|
}
|
|
scrollTo(getScrollX(), getScrollY());
|
|
this.mIsLaidOut = true;
|
|
}
|
|
|
|
@Override // android.view.ViewGroup, android.view.View
|
|
public void onAttachedToWindow() {
|
|
super.onAttachedToWindow();
|
|
this.mIsLaidOut = false;
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public void onSizeChanged(int i, int i2, int i3, int i4) {
|
|
super.onSizeChanged(i, i2, i3, i4);
|
|
View findFocus = findFocus();
|
|
if (findFocus == null || this == findFocus || !isWithinDeltaOfScreen(findFocus, 0, i4)) {
|
|
return;
|
|
}
|
|
findFocus.getDrawingRect(this.mTempRect);
|
|
offsetDescendantRectToMyCoords(findFocus, this.mTempRect);
|
|
doScrollY(computeScrollDeltaToGetChildRectOnScreen(this.mTempRect));
|
|
}
|
|
|
|
private static boolean isViewDescendantOf(View view, View view2) {
|
|
if (view == view2) {
|
|
return true;
|
|
}
|
|
Object parent = view.getParent();
|
|
return (parent instanceof ViewGroup) && isViewDescendantOf((View) parent, view2);
|
|
}
|
|
|
|
public void fling(int i) {
|
|
if (getChildCount() > 0) {
|
|
this.mScroller.fling(getScrollX(), getScrollY(), 0, i, 0, 0, Integer.MIN_VALUE, Integer.MAX_VALUE, 0, 0);
|
|
runAnimatedScroll(true);
|
|
if (BuildCompat.isAtLeastV()) {
|
|
Api35Impl.setFrameContentVelocity(this, Math.abs(this.mScroller.getCurrVelocity()));
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public void scrollTo(int i, int i2) {
|
|
if (getChildCount() > 0) {
|
|
View childAt = getChildAt(0);
|
|
FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) childAt.getLayoutParams();
|
|
int width = (getWidth() - getPaddingLeft()) - getPaddingRight();
|
|
int width2 = childAt.getWidth() + layoutParams.leftMargin + layoutParams.rightMargin;
|
|
int height = (getHeight() - getPaddingTop()) - getPaddingBottom();
|
|
int height2 = childAt.getHeight() + layoutParams.topMargin + layoutParams.bottomMargin;
|
|
int clamp = clamp(i, width, width2);
|
|
int clamp2 = clamp(i2, height, height2);
|
|
if (clamp == getScrollX() && clamp2 == getScrollY()) {
|
|
return;
|
|
}
|
|
super.scrollTo(clamp, clamp2);
|
|
}
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public void draw(@NonNull Canvas canvas) {
|
|
int i;
|
|
super.draw(canvas);
|
|
int scrollY = getScrollY();
|
|
int i2 = 0;
|
|
if (!this.mEdgeGlowTop.isFinished()) {
|
|
int save = canvas.save();
|
|
int width = getWidth();
|
|
int height = getHeight();
|
|
int min = Math.min(0, scrollY);
|
|
if (Api21Impl.getClipToPadding(this)) {
|
|
width -= getPaddingLeft() + getPaddingRight();
|
|
i = getPaddingLeft();
|
|
} else {
|
|
i = 0;
|
|
}
|
|
if (Api21Impl.getClipToPadding(this)) {
|
|
height -= getPaddingTop() + getPaddingBottom();
|
|
min += getPaddingTop();
|
|
}
|
|
canvas.translate(i, min);
|
|
this.mEdgeGlowTop.setSize(width, height);
|
|
if (this.mEdgeGlowTop.draw(canvas)) {
|
|
postInvalidateOnAnimation();
|
|
}
|
|
canvas.restoreToCount(save);
|
|
}
|
|
if (this.mEdgeGlowBottom.isFinished()) {
|
|
return;
|
|
}
|
|
int save2 = canvas.save();
|
|
int width2 = getWidth();
|
|
int height2 = getHeight();
|
|
int max = Math.max(getScrollRange(), scrollY) + height2;
|
|
if (Api21Impl.getClipToPadding(this)) {
|
|
width2 -= getPaddingLeft() + getPaddingRight();
|
|
i2 = getPaddingLeft();
|
|
}
|
|
if (Api21Impl.getClipToPadding(this)) {
|
|
height2 -= getPaddingTop() + getPaddingBottom();
|
|
max -= getPaddingBottom();
|
|
}
|
|
canvas.translate(i2 - width2, max);
|
|
canvas.rotate(180.0f, width2, 0.0f);
|
|
this.mEdgeGlowBottom.setSize(width2, height2);
|
|
if (this.mEdgeGlowBottom.draw(canvas)) {
|
|
postInvalidateOnAnimation();
|
|
}
|
|
canvas.restoreToCount(save2);
|
|
}
|
|
|
|
@Override // android.view.View
|
|
public void onRestoreInstanceState(Parcelable parcelable) {
|
|
if (!(parcelable instanceof SavedState)) {
|
|
super.onRestoreInstanceState(parcelable);
|
|
return;
|
|
}
|
|
SavedState savedState = (SavedState) parcelable;
|
|
super.onRestoreInstanceState(savedState.getSuperState());
|
|
this.mSavedState = savedState;
|
|
requestLayout();
|
|
}
|
|
|
|
@Override // android.view.View
|
|
@NonNull
|
|
public Parcelable onSaveInstanceState() {
|
|
SavedState savedState = new SavedState(super.onSaveInstanceState());
|
|
savedState.scrollPosition = getScrollY();
|
|
return savedState;
|
|
}
|
|
|
|
public static class SavedState extends View.BaseSavedState {
|
|
public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() { // from class: androidx.core.widget.NestedScrollView.SavedState.1
|
|
/* JADX WARN: Can't rename method to resolve collision */
|
|
@Override // android.os.Parcelable.Creator
|
|
public SavedState createFromParcel(Parcel parcel) {
|
|
return new SavedState(parcel);
|
|
}
|
|
|
|
/* JADX WARN: Can't rename method to resolve collision */
|
|
@Override // android.os.Parcelable.Creator
|
|
public SavedState[] newArray(int i) {
|
|
return new SavedState[i];
|
|
}
|
|
};
|
|
public int scrollPosition;
|
|
|
|
public SavedState(Parcelable parcelable) {
|
|
super(parcelable);
|
|
}
|
|
|
|
public SavedState(Parcel parcel) {
|
|
super(parcel);
|
|
this.scrollPosition = parcel.readInt();
|
|
}
|
|
|
|
@Override // android.view.View.BaseSavedState, android.view.AbsSavedState, android.os.Parcelable
|
|
public void writeToParcel(Parcel parcel, int i) {
|
|
super.writeToParcel(parcel, i);
|
|
parcel.writeInt(this.scrollPosition);
|
|
}
|
|
|
|
@NonNull
|
|
public String toString() {
|
|
return "HorizontalScrollView.SavedState{" + Integer.toHexString(System.identityHashCode(this)) + " scrollPosition=" + this.scrollPosition + "}";
|
|
}
|
|
}
|
|
|
|
public static class AccessibilityDelegate extends AccessibilityDelegateCompat {
|
|
@Override // androidx.core.view.AccessibilityDelegateCompat
|
|
public boolean performAccessibilityAction(View view, int i, Bundle bundle) {
|
|
if (super.performAccessibilityAction(view, i, bundle)) {
|
|
return true;
|
|
}
|
|
NestedScrollView nestedScrollView = (NestedScrollView) view;
|
|
if (!nestedScrollView.isEnabled()) {
|
|
return false;
|
|
}
|
|
int height = nestedScrollView.getHeight();
|
|
Rect rect = new Rect();
|
|
if (nestedScrollView.getMatrix().isIdentity() && nestedScrollView.getGlobalVisibleRect(rect)) {
|
|
height = rect.height();
|
|
}
|
|
if (i != 4096) {
|
|
if (i == 8192 || i == 16908344) {
|
|
int max = Math.max(nestedScrollView.getScrollY() - ((height - nestedScrollView.getPaddingBottom()) - nestedScrollView.getPaddingTop()), 0);
|
|
if (max == nestedScrollView.getScrollY()) {
|
|
return false;
|
|
}
|
|
nestedScrollView.smoothScrollTo(0, max, true);
|
|
return true;
|
|
}
|
|
if (i != 16908346) {
|
|
return false;
|
|
}
|
|
}
|
|
int min = Math.min(nestedScrollView.getScrollY() + ((height - nestedScrollView.getPaddingBottom()) - nestedScrollView.getPaddingTop()), nestedScrollView.getScrollRange());
|
|
if (min == nestedScrollView.getScrollY()) {
|
|
return false;
|
|
}
|
|
nestedScrollView.smoothScrollTo(0, min, true);
|
|
return true;
|
|
}
|
|
|
|
@Override // androidx.core.view.AccessibilityDelegateCompat
|
|
public void onInitializeAccessibilityNodeInfo(View view, AccessibilityNodeInfoCompat accessibilityNodeInfoCompat) {
|
|
int scrollRange;
|
|
super.onInitializeAccessibilityNodeInfo(view, accessibilityNodeInfoCompat);
|
|
NestedScrollView nestedScrollView = (NestedScrollView) view;
|
|
accessibilityNodeInfoCompat.setClassName(ScrollView.class.getName());
|
|
if (!nestedScrollView.isEnabled() || (scrollRange = nestedScrollView.getScrollRange()) <= 0) {
|
|
return;
|
|
}
|
|
accessibilityNodeInfoCompat.setScrollable(true);
|
|
if (nestedScrollView.getScrollY() > 0) {
|
|
accessibilityNodeInfoCompat.addAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_SCROLL_BACKWARD);
|
|
accessibilityNodeInfoCompat.addAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_SCROLL_UP);
|
|
}
|
|
if (nestedScrollView.getScrollY() < scrollRange) {
|
|
accessibilityNodeInfoCompat.addAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_SCROLL_FORWARD);
|
|
accessibilityNodeInfoCompat.addAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_SCROLL_DOWN);
|
|
}
|
|
}
|
|
|
|
@Override // androidx.core.view.AccessibilityDelegateCompat
|
|
public void onInitializeAccessibilityEvent(View view, AccessibilityEvent accessibilityEvent) {
|
|
super.onInitializeAccessibilityEvent(view, accessibilityEvent);
|
|
NestedScrollView nestedScrollView = (NestedScrollView) view;
|
|
accessibilityEvent.setClassName(ScrollView.class.getName());
|
|
accessibilityEvent.setScrollable(nestedScrollView.getScrollRange() > 0);
|
|
accessibilityEvent.setScrollX(nestedScrollView.getScrollX());
|
|
accessibilityEvent.setScrollY(nestedScrollView.getScrollY());
|
|
AccessibilityRecordCompat.setMaxScrollX(accessibilityEvent, nestedScrollView.getScrollX());
|
|
AccessibilityRecordCompat.setMaxScrollY(accessibilityEvent, nestedScrollView.getScrollRange());
|
|
}
|
|
}
|
|
|
|
public class DifferentialMotionFlingTargetImpl implements DifferentialMotionFlingTarget {
|
|
public DifferentialMotionFlingTargetImpl() {
|
|
}
|
|
|
|
@Override // androidx.core.view.DifferentialMotionFlingTarget
|
|
public boolean startDifferentialMotionFling(float f) {
|
|
if (f == 0.0f) {
|
|
return false;
|
|
}
|
|
stopDifferentialMotionFling();
|
|
NestedScrollView.this.fling((int) f);
|
|
return true;
|
|
}
|
|
|
|
@Override // androidx.core.view.DifferentialMotionFlingTarget
|
|
public void stopDifferentialMotionFling() {
|
|
NestedScrollView.this.mScroller.abortAnimation();
|
|
}
|
|
|
|
@Override // androidx.core.view.DifferentialMotionFlingTarget
|
|
public float getScaledScrollFactor() {
|
|
return -NestedScrollView.this.getVerticalScrollFactorCompat();
|
|
}
|
|
}
|
|
|
|
@RequiresApi(21)
|
|
public static class Api21Impl {
|
|
private Api21Impl() {
|
|
}
|
|
|
|
public static boolean getClipToPadding(ViewGroup viewGroup) {
|
|
return viewGroup.getClipToPadding();
|
|
}
|
|
}
|
|
|
|
@RequiresApi(35)
|
|
public static final class Api35Impl {
|
|
private Api35Impl() {
|
|
}
|
|
|
|
public static void setFrameContentVelocity(View view, float f) {
|
|
try {
|
|
view.setFrameContentVelocity(f);
|
|
} catch (LinkageError unused) {
|
|
}
|
|
}
|
|
}
|
|
}
|