Android下修改SeekBar样式的解决办法

<seekbar    
         android:id="@+id/player_seekbar"   
         android:layout_width="245px"   
         android:layout_height="25px"   
         android:progressdrawable="@drawable/seekbar_style"   
         android:thumb="@drawable/thumb"   
         android:paddingleft="16px"   
         android:paddingright="15px"   
         android:paddingtop="5px"   
         android:paddingbottom="5px"   
         android:progress="0"   
         android:max="0"   
         android:secondaryprogress="0"   
         />   

<?xml version="1.0" encoding="utf-8"?>   

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">   

     <item android:id="@android:id/background">   
         <shape>   
             <corners android:radius="5dip" />   
             <gradient   
                     android:startcolor="#ff9d9e9d"   
                     android:centercolor="#ff5a5d5a"   
                     android:centery="0.75"   
                     android:endcolor="#ff747674"   
                     android:angle="270"   
             />   
         </shape>   
     </item>   

     <item android:id="@android:id/secondaryprogress">   
         <clip>   
             <shape>   
                 <corners android:radius="5dip" />   
                 <gradient   
                         android:startcolor="#80ffd300"   
                         android:centercolor="#80ffb600"   
                         android:centery="0.75"   
                         android:endcolor="#a0ffcb00"   
                         android:angle="270"   
                 />   
             </shape>   
         </clip>   
     </item>   

     <item android:id="@android:id/progress">   
         <clip>   
             <shape>   
                 <corners android:radius="5dip" />   
                 <gradient   
                         android:startcolor="#ff0099cc"   
                         android:centercolor="#ff3399cc"   
                         android:centery="0.75"   
                         android:endcolor="#ff6699cc"   
                         android:angle="270"   
                 />   
             </shape>   
         </clip>   
     </item>   

</layer-list>   

<?xml version="1.0" encoding="utf-8"?>   
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">   

    <item android:id="@android:id/background"    
          android:drawable="@drawable/progress_bg" />   

    <item android:id="@android:id/secondaryprogress"   
          android:drawable="@drawable/second_progress">   
    </item>       

    <item android:id="@android:id/progress"   
          android:drawable="@drawable/first_progress">   

    </item>    
</layer-list>   

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">    
    <item android:id="@android:id/background"    
    android:drawable="@drawable/progress_bg" />    
    <item android:id="@android:id/secondaryprogress">    
     <clip android:drawable="@drawable/second_progress" />    
    </item>    
    <item android:id="@android:id/progress">    
         <clip android:drawable="@drawable/first_progress" />    
    </item>    
</layer-list>   

<?xml version="1.0" encoding="utf-8"?>   
<selector xmlns:android="http://schemas.android.com/apk/res/android">         

    <!-- 按下状态-->   
    <item    
        android:state_focused="true"    
        android:state_pressed="true"    
        android:drawable="@drawable/thumb_pressed" />         
    <!-- 普通无焦点状态 -->   
    <item    
        android:state_focused="false"    
        android:state_pressed="false"   
        android:drawable="@drawable/thumb_normal" />               
    <!-- 有焦点状态-->   
    <item    
        android:state_focused="true"    
        android:state_pressed="false"               
        android:drawable="@drawable/thumb_focused" />          
    <!-- 有焦点 -->   
    <item    
        android:state_focused="true"               
        android:drawable="@drawable/thumb_focused" />      
</selector>