https://github.com/byteszero/tvoffanimation

仿电视关闭的一个动画效果
https://github.com/byteszero/tvoffanimation

Last synced: 4 days ago
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仿电视关闭的一个动画效果

• Host: GitHub
• URL: https://github.com/byteszero/tvoffanimation
• Owner: BytesZero
• License: apache-2.0
• Created: 2015-03-27T04:08:27.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-04-15T05:04:56.000Z (over 9 years ago)
• Last Synced: 2023-11-05T13:22:26.757Z (about 1 year ago)
• Language: Java
• Size: 2.56 MB
• Stars: 5
• Watchers: 1
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# TVOffAnimation

仿电视关闭的一个动画效果

#仿电视关机效果的动画

- **效果图**

![这里写图片描述](https://github.com/yy1300326388/TVOffAnimation/blob/master/image/tvoffanimation.gif)

- **主要代码**

``` java

package com.zhengsonglan.tvanimation;

import android.graphics.Matrix;

import android.view.animation.AccelerateDecelerateInterpolator;

import android.view.animation.Animation;

import android.view.animation.Transformation;

/**

 * Created by zsl on 2015/3/27.

 */

public class TVOffAnimation extends Animation {

    int halfWidth;

    int halfHeight;

    @Override

    public void initialize(int width, int height, int parentWidth, int parentHeight) {

        super.initialize(width, height, parentWidth, parentHeight);

        //设置动画时间为700毫秒

        setDuration(700);

        //设置动画结束后就结束在动画结束的时刻

        setFillAfter(true);

        //保存View的中心点

        halfWidth=width/2;

        halfHeight=height/2;

        //设置动画先加速后减速

        setInterpolator(new AccelerateDecelerateInterpolator());

    }

    @Override

    protected void applyTransformation(float interpolatedTime, Transformation t) {

       

        final Matrix matrix=t.getMatrix();

        //interpolatedTime是从0~1的一个变化，所以我们前80%让动画缩小成一个线，后20%保持线的高度缩小线的宽度

        if (interpolatedTime<0.8){

            matrix.preScale(1+0.625f*interpolatedTime,1-interpolatedTime/0.8f+0.01f,halfWidth,halfHeight);

        }else{

            matrix.setScale(7.5f*(1-interpolatedTime),0.01f,halfWidth,halfHeight);

        }

    }

}

```

- **bolg地址**

>[点击这里，欢迎指正](http://blog.csdn.net/yy1300326388/article/details/44674219)