学步园

效果：

代码如下：

Java代码  

1. <SeekBar android:id="@+id/seekbar"  
2.             android:layout_width="wrap_content"  
3.             android:layout_height="wrap_content"  
4.             android:paddingLeft="5dip"  
5.             android:paddingRight="5dip"  
6.             android:layout_marginLeft="10dip"  
7.             android:layout_marginRight="10dip"  
8.             android:progressDrawable="@layout/seekbar_style"  
9.             style="?android:attr/progressBarStyleHorizontal"   
10.             android:thumb="@layout/thumb"  
11.             android:layout_weight="1"  
12.             />  

 其实最最关键的就是：

Java代码  

1. android:progressDrawable="@layout/seekbar_style"  
2. android:thumb="@layout/thumb"  

 怎么去定义呢？ 
看下面的代码： 
seekbar_style.xml

Java代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <layer-list xmlns:android="http://schemas.android.com/apk/res/android">  
3.   
4.     <item android:id="@android:id/background">  
5.         <shape>  
6.             <corners android:radius="10dip" />  
7.             <gradient android:startColor="#ffffffff"  
8.                 android:centerColor="#ff000000" android:endColor="#ff808A87"  
9.                 android:centerY="0.45" android:angle="270" />  
10.         </shape>  
11.     </item>  
12.   
13.     <item android:id="@android:id/progress">  
14.         <clip>  
15.             <shape>  
16.                 <corners android:radius="10dip" />  
17.                 <gradient android:startColor="#ffffffff"  
18.                     android:centerColor="#ffFFFF00" android:endColor="#ffAABD00"  
19.                     android:centerY="0.45" android:angle="270" />  
20.             </shape>  
21.         </clip>  
22.     </item>  
23. </layer-list>    

thumb.xml的代码，这里就是哪个条上的进度按钮，你可以设置不图片。方形，圆形都可以

Java代码  

1. <?xml version="1.0" encoding="UTF-8"?>    
2. <selector xmlns:android="http://schemas.android.com/apk/res/android">          
3.     <!-- 按下状态 -->   
4.     <item      
5.         android:state_pressed="true"   
6.         android:drawable="@drawable/thumb_normal"     
7.         />     
8.                
9.     <!-- 普通无焦点状态 -->   
10.     <item      
11.         android:state_focused="false"      
12.         android:state_pressed="false"    
13.         android:drawable="@drawable/thumb_normal"  
14.     />  
15.   
16.   
17. </selector>    

 Java代码的处理：并实现播放中的拖动功能

Java代码  

1. seekBar = (SeekBar) controlView.findViewById(R.id.seekbar);  
2.         seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {  
3.   
4.             @Override  
5.             public void onProgressChanged(SeekBar seekbar, int progress,  
6.                     boolean fromUser) {  
7.   
8.                 if (fromUser) {  
9.   
10.                     //if(!isOnline){  
11.                         vv.seekTo(progress);  
12.                     //}  
13.                       
14.                 }  
15.   
16.             }  
17.   
18.             @Override  
19.             public void onStartTrackingTouch(SeekBar arg0) {  
20.                 myHandler.removeMessages(HIDE_CONTROLER);  
21.             }  
22.   
23.             @Override  
24.             public void onStopTrackingTouch(SeekBar seekBar) {  
25.                 myHandler.sendEmptyMessageDelayed(HIDE_CONTROLER, TIME);  
26.             }  
27.         });  

 本文转自：http://yangguangfu.iteye.com/blog/732160