ADD week 5

2025-03-31 16:33:42 +02:00
parent 86f265f22d
commit bf645048e6
4927 changed files with 544053 additions and 0 deletions
--- a/02-Easy5/E5/sources/androidx/viewpager2/widget/AnimateLayoutChangeDetector.java
+++ b/02-Easy5/E5/sources/androidx/viewpager2/widget/AnimateLayoutChangeDetector.java
@@ -0,0 +1,110 @@
+package androidx.viewpager2.widget;
+
+import android.animation.LayoutTransition;
+import android.view.View;
+import android.view.ViewGroup;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import java.lang.reflect.Array;
+import java.util.Arrays;
+import java.util.Comparator;
+
+/* loaded from: classes.dex */
+final class AnimateLayoutChangeDetector {
+    private static final ViewGroup.MarginLayoutParams ZERO_MARGIN_LAYOUT_PARAMS;
+    private LinearLayoutManager mLayoutManager;
+
+    static {
+        ViewGroup.MarginLayoutParams marginLayoutParams = new ViewGroup.MarginLayoutParams(-1, -1);
+        ZERO_MARGIN_LAYOUT_PARAMS = marginLayoutParams;
+        marginLayoutParams.setMargins(0, 0, 0, 0);
+    }
+
+    AnimateLayoutChangeDetector(LinearLayoutManager linearLayoutManager) {
+        this.mLayoutManager = linearLayoutManager;
+    }
+
+    boolean mayHaveInterferingAnimations() {
+        return (!arePagesLaidOutContiguously() || this.mLayoutManager.getChildCount() <= 1) && hasRunningChangingLayoutTransition();
+    }
+
+    private boolean arePagesLaidOutContiguously() {
+        int top;
+        int i;
+        int bottom;
+        int i2;
+        int childCount = this.mLayoutManager.getChildCount();
+        if (childCount == 0) {
+            return true;
+        }
+        boolean z = this.mLayoutManager.getOrientation() == 0;
+        int[][] iArr = (int[][]) Array.newInstance((Class<?>) Integer.TYPE, childCount, 2);
+        for (int i3 = 0; i3 < childCount; i3++) {
+            View childAt = this.mLayoutManager.getChildAt(i3);
+            if (childAt == null) {
+                throw new IllegalStateException("null view contained in the view hierarchy");
+            }
+            ViewGroup.LayoutParams layoutParams = childAt.getLayoutParams();
+            ViewGroup.MarginLayoutParams marginLayoutParams = layoutParams instanceof ViewGroup.MarginLayoutParams ? (ViewGroup.MarginLayoutParams) layoutParams : ZERO_MARGIN_LAYOUT_PARAMS;
+            int[] iArr2 = iArr[i3];
+            if (z) {
+                top = childAt.getLeft();
+                i = marginLayoutParams.leftMargin;
+            } else {
+                top = childAt.getTop();
+                i = marginLayoutParams.topMargin;
+            }
+            iArr2[0] = top - i;
+            int[] iArr3 = iArr[i3];
+            if (z) {
+                bottom = childAt.getRight();
+                i2 = marginLayoutParams.rightMargin;
+            } else {
+                bottom = childAt.getBottom();
+                i2 = marginLayoutParams.bottomMargin;
+            }
+            iArr3[1] = bottom + i2;
+        }
+        Arrays.sort(iArr, new Comparator<int[]>() { // from class: androidx.viewpager2.widget.AnimateLayoutChangeDetector.1
+            @Override // java.util.Comparator
+            public int compare(int[] iArr4, int[] iArr5) {
+                return iArr4[0] - iArr5[0];
+            }
+        });
+        for (int i4 = 1; i4 < childCount; i4++) {
+            if (iArr[i4 - 1][1] != iArr[i4][0]) {
+                return false;
+            }
+        }
+        int[] iArr4 = iArr[0];
+        int i5 = iArr4[1];
+        int i6 = iArr4[0];
+        return i6 <= 0 && iArr[childCount - 1][1] >= i5 - i6;
+    }
+
+    private boolean hasRunningChangingLayoutTransition() {
+        int childCount = this.mLayoutManager.getChildCount();
+        for (int i = 0; i < childCount; i++) {
+            if (hasRunningChangingLayoutTransition(this.mLayoutManager.getChildAt(i))) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static boolean hasRunningChangingLayoutTransition(View view) {
+        if (view instanceof ViewGroup) {
+            ViewGroup viewGroup = (ViewGroup) view;
+            LayoutTransition layoutTransition = viewGroup.getLayoutTransition();
+            if (layoutTransition != null && layoutTransition.isChangingLayout()) {
+                return true;
+            }
+            int childCount = viewGroup.getChildCount();
+            for (int i = 0; i < childCount; i++) {
+                if (hasRunningChangingLayoutTransition(viewGroup.getChildAt(i))) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}