ADD week 5

02-Easy5/E5/sources/androidx/transition/CircularPropagation.java

@@ -0,0 +1,56 @@
+package androidx.transition;
+
+import android.graphics.Rect;
+import android.view.ViewGroup;
+
+/* loaded from: classes.dex */
+public class CircularPropagation extends VisibilityPropagation {
+    private float mPropagationSpeed = 3.0f;
+
+    public void setPropagationSpeed(float f) {
+        if (f == 0.0f) {
+            throw new IllegalArgumentException("propagationSpeed may not be 0");
+        }
+        this.mPropagationSpeed = f;
+    }
+
+    @Override // androidx.transition.TransitionPropagation
+    public long getStartDelay(ViewGroup viewGroup, Transition transition, TransitionValues transitionValues, TransitionValues transitionValues2) {
+        int i;
+        int round;
+        int i2;
+        if (transitionValues == null && transitionValues2 == null) {
+            return 0L;
+        }
+        if (transitionValues2 == null || getViewVisibility(transitionValues) == 0) {
+            i = -1;
+        } else {
+            transitionValues = transitionValues2;
+            i = 1;
+        }
+        int viewX = getViewX(transitionValues);
+        int viewY = getViewY(transitionValues);
+        Rect epicenter = transition.getEpicenter();
+        if (epicenter != null) {
+            i2 = epicenter.centerX();
+            round = epicenter.centerY();
+        } else {
+            viewGroup.getLocationOnScreen(new int[2]);
+            int round2 = Math.round(r5[0] + (viewGroup.getWidth() / 2) + viewGroup.getTranslationX());
+            round = Math.round(r5[1] + (viewGroup.getHeight() / 2) + viewGroup.getTranslationY());
+            i2 = round2;
+        }
+        float distance = distance(viewX, viewY, i2, round) / distance(0.0f, 0.0f, viewGroup.getWidth(), viewGroup.getHeight());
+        long duration = transition.getDuration();
+        if (duration < 0) {
+            duration = 300;
+        }
+        return Math.round(((duration * i) / this.mPropagationSpeed) * distance);
+    }
+
+    private static float distance(float f, float f2, float f3, float f4) {
+        float f5 = f3 - f;
+        float f6 = f4 - f2;
+        return (float) Math.sqrt((f5 * f5) + (f6 * f6));
+    }
+}