59 lines
2.1 KiB
Java
59 lines
2.1 KiB
Java
package androidx.recyclerview.widget;
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import android.graphics.Canvas;
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import android.view.View;
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import androidx.core.view.ViewCompat;
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import androidx.recyclerview.R;
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public class ItemTouchUIUtilImpl implements ItemTouchUIUtil {
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public static final ItemTouchUIUtil INSTANCE = new ItemTouchUIUtilImpl();
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private static float findMaxElevation(RecyclerView recyclerView, View view) {
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int childCount = recyclerView.getChildCount();
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float f = 0.0f;
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for (int i = 0; i < childCount; i++) {
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View childAt = recyclerView.getChildAt(i);
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if (childAt != view) {
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float elevation = ViewCompat.getElevation(childAt);
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if (elevation > f) {
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f = elevation;
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}
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}
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}
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return f;
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}
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@Override // androidx.recyclerview.widget.ItemTouchUIUtil
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public void clearView(View view) {
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int i = R.id.item_touch_helper_previous_elevation;
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Object tag = view.getTag(i);
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if (tag instanceof Float) {
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ViewCompat.setElevation(view, ((Float) tag).floatValue());
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}
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view.setTag(i, null);
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view.setTranslationX(0.0f);
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view.setTranslationY(0.0f);
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}
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@Override // androidx.recyclerview.widget.ItemTouchUIUtil
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public void onDraw(Canvas canvas, RecyclerView recyclerView, View view, float f, float f2, int i, boolean z2) {
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if (z2) {
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int i2 = R.id.item_touch_helper_previous_elevation;
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if (view.getTag(i2) == null) {
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Float valueOf = Float.valueOf(ViewCompat.getElevation(view));
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ViewCompat.setElevation(view, findMaxElevation(recyclerView, view) + 1.0f);
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view.setTag(i2, valueOf);
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}
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}
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view.setTranslationX(f);
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view.setTranslationY(f2);
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}
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@Override // androidx.recyclerview.widget.ItemTouchUIUtil
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public void onDrawOver(Canvas canvas, RecyclerView recyclerView, View view, float f, float f2, int i, boolean z2) {
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}
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@Override // androidx.recyclerview.widget.ItemTouchUIUtil
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public void onSelected(View view) {
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}
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}
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