tweenanim动画

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical"
 6     tools:context=".MainActivity" >
 7 
 8     <LinearLayout
 9         android:layout_width="match_parent"
10         android:layout_height="wrap_content"
11         android:orientation="horizontal"
12         >
13         <Button
14             android:layout_width="wrap_content"
15             android:layout_height="wrap_content" 
16             android:onClick="click1"
17             android:text="透明"
18             />
19          <Button
20             android:layout_width="wrap_content"
21             android:layout_height="wrap_content" 
22             android:onClick="click2"
23             android:text="缩放"
24             />
25          
26          <Button
27             android:layout_width="wrap_content"
28             android:layout_height="wrap_content" 
29             android:onClick="click3"
30             android:text="旋转"
31             />
32          
33          <Button
34             android:layout_width="wrap_content"
35             android:layout_height="wrap_content" 
36             android:onClick="click4"
37             android:text="平移"
38             />
39          
40           <Button
41             android:layout_width="wrap_content"
42             android:layout_height="wrap_content" 
43             android:onClick="click5"
44             android:text="组合"
45             />
46     </LinearLayout>
47     <LinearLayout 
48         android:layout_width="match_parent"
49         android:layout_height="match_parent"
50         android:gravity="center"
51         >
52         <ImageView
53             android:id="@+id/iv"
54             android:layout_width="wrap_content"
55             android:layout_height="wrap_content"
56             android:src="@drawable/ic_launcher"
57             />
58     </LinearLayout>
59 
60 </LinearLayout>

  1 package com.example.tweenanim;
  2 
  3 import android.os.Bundle;
  4 import android.app.Activity;
  5 import android.view.Menu;
  6 import android.view.View;
  7 import android.view.animation.AlphaAnimation;
  8 import android.view.animation.Animation;
  9 import android.view.animation.AnimationSet;
 10 import android.view.animation.RotateAnimation;
 11 import android.view.animation.ScaleAnimation;
 12 import android.view.animation.TranslateAnimation;
 13 import android.widget.ImageView;
 14 
 15 public class MainActivity extends Activity {
 16     private ImageView iv;
 17     @Override
 18     protected void onCreate(Bundle savedInstanceState) {
 19         super.onCreate(savedInstanceState);
 20         setContentView(R.layout.activity_main);
 21         iv = (ImageView) findViewById(R.id.iv);
 22     }
 23 
 24     //透明度
 25     public void click1(View view){
 26         //第一个参数表示开始透明度;0表示完全透明
 27         //第二个参数表示结束透明度;1表示完全不透明
 28         AlphaAnimation animation = new AlphaAnimation(0.0f, 1.0f);
 29         animation.setDuration(2000);//设置动画时间为2妙
 30         animation.setRepeatCount(2);//设置重复次数，因此总共3次
 31         animation.setRepeatMode(Animation.REVERSE);//设置重复模式
 32         iv.startAnimation(animation);
 33     }
 34     
 35     //缩放图片
 36     public void click2(View view){
 37         //第一个参数为开始x轴缩放坐标;第二个参数为结束时x轴缩放坐标
 38         //第三个参数为开始y轴缩放坐标;第四个参数为结束时y轴缩放坐标
 39         //第五个参数为中心x坐标以什么为参照,Animation.RELATIVE_TO_SELF说明以自己为参照;第六个参数为参照坐标比例;第七、八与第五、六相同,只不过它指的是y轴
 40         ScaleAnimation animation = new ScaleAnimation(0.2f, 2.0f, 0.2f, 2.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
 41         animation.setDuration(2000);
 42         animation.setRepeatCount(2);
 43         animation.setRepeatMode(Animation.REVERSE);
 44         iv.startAnimation(animation);
 45     }
 46     
 47     //旋转
 48     public void click3(View view){
 49         //第一参数，开始旋转角度
 50         //第二个参数为旋转到多少度
 51         //第3-6个参数与缩放的第5-8的参数相同
 52         RotateAnimation animation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
 53         animation.setDuration(2000);
 54         animation.setRepeatCount(2);
 55         animation.setRepeatMode(Animation.REVERSE);
 56         iv.startAnimation(animation);
 57     }
 58     
 59     //平移
 60     public void click4(View view){
 61         //x轴
 62         //第一个参数为参照类型:Animation.RELATIVE_TO_PARENT以父窗口为参照
 63         //第二个参数为开始坐标比例
 64         //第三个同第一个；第四个参数是说明要平移多长的比例;1.0说明要有父窗口的宽度
 65         
 66         //y轴同上
 67         
 68         
 69         TranslateAnimation animation = new TranslateAnimation(Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f);
 70         animation.setDuration(2000);
 71         animation.setRepeatCount(2);
 72         animation.setRepeatMode(Animation.REVERSE);
 73         iv.startAnimation(animation);
 74     }
 75     
 76     //组合动画
 77     public void click5(View view){
 78         AnimationSet set = new AnimationSet(false);
 79         
 80         TranslateAnimation ta = new TranslateAnimation(Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f);
 81         ta.setDuration(2000);
 82         ta.setRepeatCount(2);
 83         ta.setRepeatMode(Animation.REVERSE);
 84         
 85         RotateAnimation ra = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
 86         ra.setDuration(2000);
 87         ra.setRepeatCount(2);
 88         ra.setRepeatMode(Animation.REVERSE);
 89         
 90         ScaleAnimation sa = new ScaleAnimation(0.2f, 2.0f, 0.2f, 2.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
 91         sa.setDuration(2000);
 92         sa.setRepeatCount(2);
 93         sa.setRepeatMode(Animation.REVERSE);
 94         
 95         set.addAnimation(ta);
 96         set.addAnimation(ra);
 97         set.addAnimation(sa);
 98         iv.startAnimation(set);
 99     }
100 
101 }