安卓开发_浅谈Android动画（一）

 1 package other;
 2 
 3 import com.example.allcode.ImageTest;
 4 import com.example.allcode.R;
 5 
 6 import android.app.Activity;
 7 import android.os.Bundle;
 8 import android.view.View;
 9 import android.view.View.OnClickListener;
10 import android.view.animation.Animation;
11 import android.view.animation.AnimationUtils;
12 import android.widget.Button;
13 import android.widget.ImageView;
14 
15 public class Donghua extends Activity implements OnClickListener{
16     private Button toumingdu;
17     private Button suofang;
18     private Button weiyi;
19     private Button xuanzhuan;
20 
21     private ImageView donghua_image;
22     private Animation loadAnimation;
23     @Override
24     protected void onCreate(Bundle savedInstanceState) {
25         // TODO Auto-generated method stub
26         super.onCreate(savedInstanceState);
27         setContentView(R.layout.donghua);
28         
29         toumingdu = (Button) findViewById(R.id.donghua_touming);
30         suofang = (Button) findViewById(R.id.donghua_suofang);
31         weiyi= (Button) findViewById(R.id.donghua_weiyi);
32         xuanzhuan= (Button) findViewById(R.id.donghua_xuanzhuan);
33         
34         donghua_image = (ImageView) findViewById(R.id.donghua_image);
35         toumingdu.setOnClickListener(this);
36         donghua_image.setOnClickListener(this);
37         suofang.setOnClickListener(this);
38         weiyi.setOnClickListener(this);
39         xuanzhuan.setOnClickListener(this);
40     }
41     @Override
42     public void onClick(View v) {
43         // TODO Auto-generated method stub
44         switch (v.getId()) {
45         case R.id.donghua_touming:  //透明动画
46             loadAnimation = AnimationUtils.loadAnimation(this, R.anim.alpha);
47             donghua_image.startAnimation(loadAnimation);
48             break;
49         case R.id.donghua_suofang: //缩放动画
50             loadAnimation = AnimationUtils.loadAnimation(this, R.anim.scale);
51             donghua_image.startAnimation(loadAnimation);
52             break;
53         case R.id.donghua_weiyi:   //位移动画
54             loadAnimation = AnimationUtils.loadAnimation(this, R.anim.translate);
55             donghua_image.startAnimation(loadAnimation);
56             break;
57         case R.id.donghua_xuanzhuan: //旋转动画
58             loadAnimation = AnimationUtils.loadAnimation(this, R.anim.rotate);
59             donghua_image.startAnimation(loadAnimation);
60             break;
61         default:
62             break;
63         }
64     }
65 
66 }

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Button
 8         android:id="@+id/donghua_touming"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="AlphaAnimation(透明度动画)" />
12 
13     <Button
14         android:id="@+id/donghua_suofang"
15         android:layout_width="wrap_content"
16         android:layout_height="wrap_content"
17         android:text="ScaleAnimation(缩放动画)" />
18 
19     <Button
20         android:id="@+id/donghua_weiyi"
21         android:layout_width="wrap_content"
22         android:layout_height="wrap_content"
23         android:text="TranslateAnimation(位移动画)" />
24 
25     <Button
26         android:id="@+id/donghua_xuanzhuan"
27         android:layout_width="wrap_content"
28         android:layout_height="wrap_content"
29         android:text="RotateAnimation(旋转动画)" />
30 
31     <ImageView
32         android:id="@+id/donghua_image"
33         android:layout_width="82dp"
34         android:layout_height="wrap_content"
35         android:layout_weight="0.16"
36         android:src="@drawable/icon_72" />
37 
38 </LinearLayout>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android" >
 3 
 4     <alpha
 5         android:duration="3000" 
 6         android:fromAlpha="0.1"//初始透明度10%
 7         android:toAlpha="1.0"  //结束透明度100%
 8     >
 9     </alpha>
10 
11 </set>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android" >
 3 
 4     <scale
 5         android:duration="2000"
 6         android:fillAfter="false"
 7         android:fromXScale="0.0"
 8         android:fromYScale="0.0"
 9         android:interpolator="@android:anim/accelerate_decelerate_interpolator"
10         android:pivotX="50%"
11         android:pivotY="50%"
12         android:toXScale="1.0"
13         android:toYScale="1.0" />
14 
15 </set>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android" >
 3 
 4     <translate
 5         android:duration="1000"
 6         android:fromXDelta="10"
 7         android:fromYDelta="10"
 8         android:toXDelta="100"
 9         android:toYDelta="100" />
10 
11 </set>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android" >
 3 
 4     <rotate
 5         android:duration="1000"
 6         android:fromDegrees="0"
 7         android:interpolator="@android:anim/accelerate_decelerate_interpolator"
 8         android:pivotX="50%"
 9         android:pivotY="50%"
10         android:toDegrees="+360" />
11 
12 </set>