Android实现Activity页面跳转切换动画特效

了解Android程序设计的人应该知道，在Android 2.0之后有了overridePendingTransition()，其中里面两个参数，一个是前一个activity的退出，另一个activity的进入。

如下代码：

@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.SplashScreen);
   new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
    Intent mainIntent = new Intent(SplashScreen.this,   AndroidNews.class);
    SplashScreen.this.startActivity(mainIntent);
    SplashScreen.this.finish();
    overridePendingTransition(R.anim.zoomin,R.anim.zoomout);
    }
   }, 3000);
} 

首先要在res文件夹下建立anim文件夹，然后把动画效果xml文件放到里面去

zoomin.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:Android="http://schemas.android.com/apk/res/android"
    Android:interpolator="@android:anim/decelerate_interpolator">
    <scale
        Android:duration="@android:integer/config_mediumAnimTime"
        Android:fromXScale="2.0"
        Android:fromYScale="2.0"
        Android:pivotX="50%p"
        Android:pivotY="50%p"
        Android:toXScale="1.0"
        Android:toYScale="1.0" />
</set>

zoomout.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:Android="http://schemas.android.com/apk/res/android"
    Android:interpolator="@android:anim/decelerate_interpolator"
    Android:zAdjustment="top">
    <scale
        Android:duration="@android:integer/config_mediumAnimTime"
        Android:fromXScale="1.0"
        Android:fromYScale="1.0"
        Android:pivotX="50%p"
        Android:pivotY="50%p"
        Android:toXScale=".5"
        Android:toYScale=".5" />
    <alpha
        Android:duration="@android:integer/config_mediumAnimTime"
        Android:fromAlpha="1.0"
        Android:toAlpha="0" />
</set>