Android(安卓)旧电视退出效果

费话不多说，直接上代码

TVOffAnimation.java

package com.iaiai.activity;import android.graphics.Matrix;import android.view.animation.AccelerateDecelerateInterpolator;import android.view.animation.Animation;import android.view.animation.Transformation;/** *  * <p> * Title: TVOffAnimation.java * </p> * <p> * E-Mail: 176291935@qq.com * </p> * <p> * QQ: 176291935 * </p> * <p> * Http: iaiai.iteye.com * </p> * <p> * Create time: 2012-10-8 下午1:33:44 * </p> *  * @author 丸子 * @version 0.0.1 */public class TVOffAnimation extends Animation {private int halfWidth;private int halfHeight;@Overridepublic void initialize(int width, int height, int parentWidth, int parentHeight) {super.initialize(width, height, parentWidth, parentHeight);setDuration(500);setFillAfter(true);// 保存View的中心点halfWidth = width / 2;halfHeight = height / 2;setInterpolator(new AccelerateDecelerateInterpolator());}@Overrideprotected void applyTransformation(float interpolatedTime, Transformation t) {final Matrix matrix = t.getMatrix();if (interpolatedTime < 0.5) {matrix.preScale(1 + 0.625f * interpolatedTime, 1 - interpolatedTime / 0.8f + 0.003f, halfWidth, halfHeight);} else {matrix.preScale(7.5f * (1 - interpolatedTime), 0.003f, halfWidth, halfHeight);}}}

MainActivity.java

package com.iaiai.activity;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;/** *  * <p> * Title: MainActivity.java * </p> * <p> * E-Mail: 176291935@qq.com * </p> * <p> * QQ: 176291935 * </p> * <p> * Http: iaiai.iteye.com * </p> * <p> * Create time: 2012-10-8 下午1:33:44 * </p> *  * @author 丸子 * @version 0.0.1 */public class MainActivity extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);findViewById(R.id.btn).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {findViewById(R.id.root).startAnimation(new TVOffAnimation());}});}}

main.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/root"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:background="@android:color/white"    android:orientation="vertical" >    <TextView        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />    <Button        android:id="@+id/btn"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="动画" /></LinearLayout>

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