mirror of
https://github.com/Pinball3D/Rabbit-R1.git
synced 2024-12-27 01:22:33 -06:00
160 lines
6.7 KiB
Java
160 lines
6.7 KiB
Java
package androidx.recyclerview.widget;
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import android.graphics.PointF;
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import android.view.View;
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import androidx.recyclerview.widget.RecyclerView;
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/* loaded from: classes2.dex */
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public class LinearSnapHelper extends SnapHelper {
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private static final float INVALID_DISTANCE = 1.0f;
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private OrientationHelper mHorizontalHelper;
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private OrientationHelper mVerticalHelper;
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@Override // androidx.recyclerview.widget.SnapHelper
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public int[] calculateDistanceToFinalSnap(RecyclerView.LayoutManager layoutManager, View view) {
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int[] iArr = new int[2];
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if (layoutManager.canScrollHorizontally()) {
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iArr[0] = distanceToCenter(view, getHorizontalHelper(layoutManager));
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} else {
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iArr[0] = 0;
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}
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if (layoutManager.canScrollVertically()) {
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iArr[1] = distanceToCenter(view, getVerticalHelper(layoutManager));
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} else {
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iArr[1] = 0;
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}
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return iArr;
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}
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/* JADX WARN: Multi-variable type inference failed */
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@Override // androidx.recyclerview.widget.SnapHelper
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public int findTargetSnapPosition(RecyclerView.LayoutManager layoutManager, int i, int i2) {
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int itemCount;
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View findSnapView;
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int position;
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int i3;
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PointF computeScrollVectorForPosition;
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int i4;
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int i5;
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if (!(layoutManager instanceof RecyclerView.SmoothScroller.ScrollVectorProvider) || (itemCount = layoutManager.getItemCount()) == 0 || (findSnapView = findSnapView(layoutManager)) == null || (position = layoutManager.getPosition(findSnapView)) == -1 || (computeScrollVectorForPosition = ((RecyclerView.SmoothScroller.ScrollVectorProvider) layoutManager).computeScrollVectorForPosition(itemCount - 1)) == null) {
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return -1;
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}
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if (layoutManager.canScrollHorizontally()) {
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i4 = estimateNextPositionDiffForFling(layoutManager, getHorizontalHelper(layoutManager), i, 0);
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if (computeScrollVectorForPosition.x < 0.0f) {
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i4 = -i4;
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}
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} else {
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i4 = 0;
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}
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if (layoutManager.canScrollVertically()) {
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i5 = estimateNextPositionDiffForFling(layoutManager, getVerticalHelper(layoutManager), 0, i2);
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if (computeScrollVectorForPosition.y < 0.0f) {
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i5 = -i5;
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}
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} else {
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i5 = 0;
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}
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if (layoutManager.canScrollVertically()) {
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i4 = i5;
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}
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if (i4 == 0) {
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return -1;
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}
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int i6 = position + i4;
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int i7 = i6 >= 0 ? i6 : 0;
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return i7 >= itemCount ? i3 : i7;
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}
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@Override // androidx.recyclerview.widget.SnapHelper
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public View findSnapView(RecyclerView.LayoutManager layoutManager) {
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if (layoutManager.canScrollVertically()) {
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return findCenterView(layoutManager, getVerticalHelper(layoutManager));
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}
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if (layoutManager.canScrollHorizontally()) {
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return findCenterView(layoutManager, getHorizontalHelper(layoutManager));
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}
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return null;
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}
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private int distanceToCenter(View view, OrientationHelper orientationHelper) {
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return (orientationHelper.getDecoratedStart(view) + (orientationHelper.getDecoratedMeasurement(view) / 2)) - (orientationHelper.getStartAfterPadding() + (orientationHelper.getTotalSpace() / 2));
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}
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private int estimateNextPositionDiffForFling(RecyclerView.LayoutManager layoutManager, OrientationHelper orientationHelper, int i, int i2) {
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int[] calculateScrollDistance = calculateScrollDistance(i, i2);
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float computeDistancePerChild = computeDistancePerChild(layoutManager, orientationHelper);
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if (computeDistancePerChild <= 0.0f) {
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return 0;
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}
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return Math.round((Math.abs(calculateScrollDistance[0]) > Math.abs(calculateScrollDistance[1]) ? calculateScrollDistance[0] : calculateScrollDistance[1]) / computeDistancePerChild);
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}
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private View findCenterView(RecyclerView.LayoutManager layoutManager, OrientationHelper orientationHelper) {
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int childCount = layoutManager.getChildCount();
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View view = null;
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if (childCount == 0) {
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return null;
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}
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int startAfterPadding = orientationHelper.getStartAfterPadding() + (orientationHelper.getTotalSpace() / 2);
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int i = Integer.MAX_VALUE;
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for (int i2 = 0; i2 < childCount; i2++) {
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View childAt = layoutManager.getChildAt(i2);
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int abs = Math.abs((orientationHelper.getDecoratedStart(childAt) + (orientationHelper.getDecoratedMeasurement(childAt) / 2)) - startAfterPadding);
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if (abs < i) {
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view = childAt;
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i = abs;
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}
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}
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return view;
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}
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private float computeDistancePerChild(RecyclerView.LayoutManager layoutManager, OrientationHelper orientationHelper) {
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int childCount = layoutManager.getChildCount();
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if (childCount == 0) {
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return 1.0f;
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}
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View view = null;
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int i = Integer.MIN_VALUE;
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int i2 = Integer.MAX_VALUE;
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View view2 = null;
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for (int i3 = 0; i3 < childCount; i3++) {
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View childAt = layoutManager.getChildAt(i3);
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int position = layoutManager.getPosition(childAt);
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if (position != -1) {
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if (position < i2) {
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view = childAt;
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i2 = position;
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}
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if (position > i) {
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view2 = childAt;
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i = position;
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}
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}
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}
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if (view == null || view2 == null) {
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return 1.0f;
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}
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int max = Math.max(orientationHelper.getDecoratedEnd(view), orientationHelper.getDecoratedEnd(view2)) - Math.min(orientationHelper.getDecoratedStart(view), orientationHelper.getDecoratedStart(view2));
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if (max == 0) {
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return 1.0f;
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}
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return (max * 1.0f) / ((i - i2) + 1);
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}
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private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
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OrientationHelper orientationHelper = this.mVerticalHelper;
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if (orientationHelper == null || orientationHelper.mLayoutManager != layoutManager) {
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this.mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
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}
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return this.mVerticalHelper;
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}
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private OrientationHelper getHorizontalHelper(RecyclerView.LayoutManager layoutManager) {
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OrientationHelper orientationHelper = this.mHorizontalHelper;
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if (orientationHelper == null || orientationHelper.mLayoutManager != layoutManager) {
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this.mHorizontalHelper = OrientationHelper.createHorizontalHelper(layoutManager);
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}
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return this.mHorizontalHelper;
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}
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}
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