准备一张名为picture的图片。
在main.xml中：
<LinearLayout
android:id="@+id/group"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#000000"
android:orientation="vertical"
android:gravity="center_horizontal">
<ImageView
android:id="@+id/mlyw"
android:layout_marginTop="8dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="@drawable/picture"/>
</LinearLayout>
在MyAnimationDemo.java中：
package com.li.animation;
import android.app.Activity;
import android.os.Bundle;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationSet;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;
public class MyAnimationDemo extends Activity {
private ImageView mlyw = null;
private ViewGroup group = null ;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main);
this.mlyw = (ImageView) super.findViewById(R.id.mlyw);
this.group = (ViewGroup) super.findViewById(R.id.group);
AnimationSet set = new AnimationSet(true);
TranslateAnimation tran = new TranslateAnimation(
Animation.RELATIVE_TO_SELF,0.0f , // X轴开始位置
Animation.RELATIVE_TO_SELF,0.5f , // X轴移动的结束位置
Animation.RELATIVE_TO_SELF,0.0f , // Y轴开始位置
Animation.RELATIVE_TO_SELF,1.5f ); // Y轴移动位置
tran.setDuration(6000); // 3秒完成动画
set.addAnimation(tran); // 增加动画
set.setAnimationListener(new AnimationListenerImpl()) ;
this.mlyw.startAnimation(set); // 启动动画
}
private class AnimationListenerImpl implements AnimationListener {
public void onAnimationEnd(Animation animation) {
MyAnimationDemo.this.group.removeView(MyAnimationDemo.this.mlyw) ;
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationStart(Animation animation) {
if(animation instanceof AnimationSet) {
AnimationSet set = (AnimationSet) animation ;
AlphaAnimation alpha = new AlphaAnimation(1, 0);
alpha.setDuration(3000) ;
set.addAnimation(alpha) ;
}
}
}
}