四月份来了，我也要加紧学习了，下面的动画类型

1. package com.smart;  
2.  
3. import android.app.Activity;  
4. import android.os.Bundle;  
5. import android.view.View;  
6. import android.view.animation.Animation;  
7. import android.view.animation.AnimationUtils;  
8. import android.view.animation.TranslateAnimation;  
9. import android.widget.AdapterView;  
10. import android.widget.ArrayAdapter;  
11. import android.widget.Spinner;  
12.  
13. public class Main extends Activity implements AdapterView.OnItemSelectedListener  
14. {  
15.     private static final String[] INTERPOLATORS={  
16.         "加快", "减速", "加快/减速", "预料",  
17.         "过冲", "预计/过冲", "弹跳"   
18.     };//类型  
19.       
20.     @Override 
21.     public void onCreate(Bundle savedInstanceState) {  
22.         super.onCreate(savedInstanceState);  
23.         setContentView(R.layout.main);  
24.         Spinner s=(Spinner)findViewById(R.id.spinner);  
25.         ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,INTERPOLATORS);  
26.         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);  
27.         s.setAdapter(adapter);//得到控件  
28.         s.setOnItemSelectedListener(this);  
29.           
30.           
31.     }  
32.  
33.       
34.     @Override 
35.     public void onItemSelected(AdapterView<?> parent, View v, int position,  
36.             long id) {  
37.         final View target=(View)findViewById(R.id.target);  
38.         final View targetParent=(View)target.getParent();//得到动画  
39.         Animation animation= new TranslateAnimation(0.0f, targetParent  
40.                 .getWidth()  
41.                 - target.getWidth()  
42.                 - targetParent.getPaddingLeft()  
43.                 - targetParent.getPaddingRight(), 0.0f, 0.0f);  
44.         animation.setDuration(1000);  
45.         animation.setStartOffset(300);  
46.         animation.setRepeatMode(Animation.RESTART);  
47.         animation.setRepeatCount(Animation.INFINITE);  
48.         //选择动来类型  
49.         switch (position) {  
50.         case 0:  
51.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.accelerate_interpolator));  
52.               
53.             break;  
54.         case 1:  
55.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.decelerate_interpolator));  
56.               
57.             break;  
58.         case 2:  
59.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.accelerate_decelerate_interpolator));  
60.               
61.             break;  
62.         case 3:  
63.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.anticipate_interpolator));  
64.               
65.             break;  
66.         case 4:  
67.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.overshoot_interpolator));  
68.               
69.             break;  
70.         case 5:  
71.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.anticipate_overshoot_interpolator));  
72.               
73.             break;  
74.         case 6:  
75.             animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.bounce_interpolator));  
76.               
77.             break;  
78.               
79.         }  
80.         target.startAnimation(animation);  
81.           
82.           
83.     }  
84.  
85.       
86.       
87.     @Override 
88.     public void onNothingSelected(AdapterView<?> arg0) {  
89.           
90.           
91.           
92.     }  
93. }  
94.  
95. <?xml version="1.0" encoding="utf-8"?>  
96. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
97.     android:orientation="vertical" 
98.     android:padding="10dip" 
99.     android:layout_width="fill_parent" 
100.     android:layout_height="wrap_content" 
101.     android:clipToPadding="false" 
102.     >  
103. <TextView    
104. android:id="@+id/target" 
105.     android:layout_width="wrap_content"   
106.     android:layout_height="wrap_content"   
107.     android:textSize="16sp" 
108.     android:text="朋友，看看我，跑得多快！" 
109.     />  
110.       
111.     <TextView    
112.     android:layout_width="fill_parent"   
113.     android:layout_height="wrap_content"   
114.     android:textSize="15dip" 
115.     android:layout_marginBottom="5dip" 
116.     android:text="请选择动画类型" 
117.     />  
118.       
119.     <Spinner    
120.     android:id="@+id/spinner" 
121.     android:layout_width="fill_parent"   
122.     android:layout_height="wrap_content"   
123.     />  
124. </LinearLayout>  

本文转自 llb988 51CTO博客，原文链接：http://blog.51cto.com/llb988/535233，如需转载请自行联系原作者