Adam Cohen
1558893b87
-> The framework circular reveal transition runs on the render thread which can cause problems when mixed in an AnimatorSet with transitions that don't run on the render thread -> See issue 17556455 issue 21445293 Change-Id: Ie19c184c55060651e817d426ec83049b06af56ba
50 lines
1.3 KiB
Java
50 lines
1.3 KiB
Java
package com.android.launcher3.util;
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import android.annotation.TargetApi;
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import android.graphics.Outline;
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import android.graphics.Rect;
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import android.os.Build;
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import android.view.View;
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import android.view.ViewOutlineProvider;
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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public class RevealOutlineProvider extends ViewOutlineProvider {
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private int mCenterX;
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private int mCenterY;
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private float mRadius0;
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private float mRadius1;
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private int mCurrentRadius;
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private final Rect mOval;
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/**
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* @param x reveal center x
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* @param y reveal center y
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* @param r0 initial radius
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* @param r1 final radius
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*/
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public RevealOutlineProvider(int x, int y, float r0, float r1) {
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mCenterX = x;
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mCenterY = y;
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mRadius0 = r0;
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mRadius1 = r1;
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mOval = new Rect();
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}
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public void setProgress(float progress) {
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mCurrentRadius = (int) ((1 - progress) * mRadius0 + progress * mRadius1);
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mOval.left = mCenterX - mCurrentRadius;
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mOval.top = mCenterY - mCurrentRadius;
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mOval.right = mCenterX + mCurrentRadius;
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mOval.bottom = mCenterY + mCurrentRadius;
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}
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@Override
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public void getOutline(View v, Outline outline) {
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outline.setRoundRect(mOval, mCurrentRadius);
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}
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}
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