Android动画(View动画效果)

main.xml，对于代码创建动画效果在image 及手势识别的日志里

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="fill_parent"
 4     android:layout_height="fill_parent" >
 5 
 6     <Button
 7         android:onClick="alphaAnim"
 8         android:layout_width="fill_parent"
 9         android:layout_height="wrap_content"
10         android:text="播放透明度的动画" />
11 
12     <ImageView
13         android:id="@+id/iv"
14         android:layout_width="wrap_content"
15         android:layout_height="wrap_content"
16         android:layout_centerInParent="true"
17         android:src="@drawable/ic_launcher" />
18 
19 </RelativeLayout>

动画的.xml文件

alpha.xml

1 <?xml version="1.0" encoding="utf-8"?>
2 <alpha  xmlns:android="http://schemas.android.com/apk/res/android"
3     android:fromAlpha="0.0"    
4     android:toAlpha="1.0"
5     android:duration="1000"
6     >
7 </alpha>

rotate.xml

1 <?xml version="1.0" encoding="utf-8"?>
2 <rotate xmlns:android="http://schemas.android.com/apk/res/android"
3     android:duration="2000"
4     android:fromDegrees="0"
5     android:repeatCount="2"
6     android:repeatMode="reverse"
7     android:toDegrees="360" >
8 
9 </rotate>

scale.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <scale xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:fromXScale="0.5"
 4     android:toXScale="2.0"
 5     android:fromYScale="0.5"
 6     android:toYScale="2.0"
 7     android:duration="2000"
 8     
 9     >
10     
11 
12 </scale>


set.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android" >
 3 
 4     <rotate
 5         xmlns:android="http://schemas.android.com/apk/res/android"
 6         android:duration="2000"
 7         android:fromDegrees="0"
 8         android:repeatCount="2"
 9         android:repeatMode="reverse"
10         android:toDegrees="360" >
11     </rotate>
12 
13     <translate
14         xmlns:android="http://schemas.android.com/apk/res/android"
15         android:duration="2000"
16         android:fromXDelta="0"
17         android:fromYDelta="0"
18         android:toXDelta="50%p"
19         android:toYDelta="40%p" >
20     </translate>
21 
22     <scale
23         xmlns:android="http://schemas.android.com/apk/res/android"
24         android:duration="2000"
25         android:fromXScale="0.5"
26         android:fromYScale="0.5"
27         android:toXScale="2.0"
28         android:toYScale="2.0" >
29     </scale>
30 
31 </set>


trans.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <translate xmlns:android="http://schemas.android.com/apk/res/android"
 3     
 4     android:fromXDelta="0"
 5     android:toXDelta="50%p"
 6     android:fromYDelta="0"
 7     android:toYDelta="40%p"
 8     android:duration="2000"
 9     
10     >
11     
12 
13 </translate>

Activity代码

 1 package cn.itcast.viewanim;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.view.View;
 6 import android.view.animation.AlphaAnimation;
 7 import android.view.animation.Animation;
 8 import android.view.animation.AnimationUtils;
 9 import android.view.animation.ScaleAnimation;
10 import android.view.animation.TranslateAnimation;
11 import android.widget.ImageView;
12 
13 public class DemoActivity extends Activity {
14     private ImageView iv;
15     @Override
16     public void onCreate(Bundle savedInstanceState) {
17         super.onCreate(savedInstanceState);
18         setContentView(R.layout.main);
19         iv = (ImageView) findViewById(R.id.iv);
20     }
21     
22     public void alphaAnim(View view){
23         
24         //Animation a = AnimationUtils.loadAnimation(this, R.anim.set);
25         
26         AlphaAnimation aa = new AlphaAnimation(0.0f, 1.0f);
27         aa.setDuration(2000);
28         //TranslateAnimation ta = new TranslateAnimation(fromXDelta, toXDelta, fromYDelta, toYDelta);
29         //ScaleAnimation sa = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f);
30         iv.startAnimation(aa);
31         
32     }
33 }


基础/day08/viewanim

 

posted @ 2013-01-19 20:09  王世桢  阅读(298)  评论(0)  编辑  收藏  举报