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发表时间:2010-12-20
最后修改:2010-12-20
用来合并两个透明的png图片,就像photoshop里图层合并一样。 2)Frame动画animation-list,常常用于制作短片动画或用于进程进度的一个指示标识。 先附图如下: 下面是部分代码: res/anim/scrolling.xml <?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/android" id="selected" android:oneshot="false"> <item android:drawable="@drawable/ball1" android:duration="80" /> <item android:drawable="@drawable/ball2" android:duration="80" /> <item android:drawable="@drawable/ball3" android:duration="80" /> <item android:drawable="@drawable/ball4" android:duration="80" /> <item android:drawable="@drawable/ball5" android:duration="80" /> <item android:drawable="@drawable/ball6" android:duration="80" /> </animation-list> res/layout/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="wrap_content"> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_centerHorizontal="true" android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/frame01"> <ImageView android:src="@drawable/line" android:layout_width="300sp" android:layout_height="200sp"> </ImageView> <ImageView android:src="@drawable/bar" android:layout_width="300sp" android:layout_height="200sp"> </ImageView> </FrameLayout> <ImageView android:id="@+id/scrolling_anim" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:layout_centerHorizontal="true" android:layout_below="@id/frame01" android:layout_marginTop="15sp"/> </RelativeLayout> package com.sunflower; import java.util.Timer; import java.util.TimerTask; import android.app.Activity; import android.graphics.drawable.AnimationDrawable; import android.os.Bundle; import android.widget.ImageView; public class FrameActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); ImageView img = (ImageView)findViewById(R.id.scrolling_anim); img.setBackgroundResource(R.anim.scrolling); //设置动画的载体(画布) StopAnim mar2 = new StopAnim(); Timer t2 = new Timer(false); t2.schedule(mar2, 10000); //10秒后停止动画 } class StartUpAnim extends TimerTask { public void run() { ImageView img = (ImageView)findViewById(R.id.scrolling_anim); // Get the background, which has been compiled to an AnimationDrawable object. AnimationDrawable frameAnimation = (AnimationDrawable) img.getBackground(); // Start the animation (looped playback by default). frameAnimation.start(); } } class StopAnim extends TimerTask { public void run() { ImageView img = (ImageView)findViewById(R.id.scrolling_anim); // Get the background, which has been compiled to an AnimationDrawable object. AnimationDrawable frameAnimation = (AnimationDrawable) img.getBackground(); // stop the animation (looped playback by default). frameAnimation.stop(); } } @Override protected void onResume() { super.onResume(); StartUpAnim mar = new StartUpAnim(); //放在这里执行是让frameAnimation有足够的时间取得画布(Images's background) Timer t = new Timer(false); t.schedule(mar, 1000); //延迟1秒后才开始动画 } } 附件是整个app project. 声明:ITeye文章版权属于作者,受法律保护。没有作者书面许可不得转载。
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发表时间:2010-12-25
谢谢了 请问你有android的学习资料吗 ,我打算转android开发 哈
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