按鈕狀態--代碼設定

[java]採用xml寫出來的效果皆可以用代碼來實現，下面的代碼就是通過代碼編寫來實現view的狀態的轉場效果。 
      採用xml寫出來的效果皆可以用代碼來實現，下面的代碼就是通過代碼編寫來實現view的狀態的轉場效果。[java]    public void setPressedBg(View view, Drawable normal,Drawable focused, Drawable pressed) { 
    StateListDrawable bg = new StateListDrawable(); 
    int[][] states = new int[6][];  
    states[0] = new int[] { android.R.attr.state_pressed, android.R.attr.state_enabled };   
           states[1] = new int[] { android.R.attr.state_enabled, android.R.attr.state_focused };   
           states[2] = new int[] { android.R.attr.state_enabled };   
           states[3] = new int[] { android.R.attr.state_focused ,android.R.attr.state_window_focused};   
           states[4] = new int[] { android.R.attr.state_window_focused };  
    bg.addState(states[0], pressed); 
    bg.addState(states[3], focused); 
    bg.addState(states[2], normal); 
   view.setBackgroundDrawable(bg); 
} 


摘自 agods--足跡