        
          P                  +   7   D   O   ]   g               

state_checked 

state_pressed drawable 		insetLeft 

insetRight insetTop insetBottom android **http://schemas.android.com/apk/res/android inset item 

layer-list selector   $                    t      	                                                 $                    L      
                                      $                    8      
                    W        
    8      
                    I        
                    
    $      
              $                    8      
                    V        
    8       
                    I         
                    
                    	                