android Animation图片渐变动画 Demo

最终实现效果：

项目目录结构：

 

main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    
    <ImageView 
        android:id="@+id/iv_animation_logo"
        android:contentDescription="@string/animationContentDescription"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:src="@drawable/animation_logo"/>

</RelativeLayout>

 

AnimationDemoActivity.java

package com.royal.animationDemo;

import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;

/**
 * 图片渐变动画
 */
public class AnimationDemoActivity extends Activity {
	
	public static final int ANIMATION_TIME = 5000;
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		this.requestWindowFeature(Window.FEATURE_NO_TITLE);
		// 去掉界面任务条
		this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
		setContentView(R.layout.main);
		
		//图片渐变模糊度始终
		AlphaAnimation aa = new AlphaAnimation(0.1f,1.0f);
		//渐变时间
		aa.setDuration(ANIMATION_TIME);
		//展示图片渐变动画
		this.findViewById(R.id.iv_animation_logo).startAnimation(aa);
		
		//渐变过程监听
		aa.setAnimationListener(new AnimationListener() {
			
			/**
			 * 动画开始时
			 */
			@Override
			public void onAnimationStart(Animation animation) {
				System.out.println("动画开始...");
			}
			
			/**
			 * 重复动画时
			 */
			@Override
			public void onAnimationRepeat(Animation animation) {
				System.out.println("动画重复...");
			}
			
			/**
			 * 动画结束时
			 */
			@Override
			public void onAnimationEnd(Animation animation) {
				System.out.println("动画结束...");
			}
		});
	}
}

 

string.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">AnimationDemo</string>
    <string name="animationContentDescription">渐变图片动画描述</string>

</resources>

 

打印结果：

 

评论

1 楼 weisi2375 2012-06-11  

是个美女。