如何獲取Android上按鈕的背景顏色？

Question

我想獲得按鈕的顏色..我無法從getbackground函數獲取顏色，它返回drawable。我用getsolidcolor它返回整數值，但它是0（零）所有的時間.. 我不明白哪裏是問題。也許它不是真正的功能..

這裏是我的Android代碼

  int renk = btn1.getSolidColor(); 

     if(renk== Color.GREEN) 
      Toast.makeText(getApplicationContext(), "green" , 1000).show(); 
     else if(renk== Color.RED) 
      Toast.makeText(getApplicationContext(), "red" , 1000).show(); 
     else if(renk== Color.YELLOW) 
      Toast.makeText(getApplicationContext(), "yellow" , 1000).show(); 
     else 
      Toast.makeText(getApplicationContext(), "unknown", 1000).show(); 

     btn1.setBackgroundColor(Color.YELLOW); 
    renk = btn1.getSolidColor(); 


     if(renk== Color.GREEN) 
      Toast.makeText(getApplicationContext(), "green" , 1000).show(); 
     else if(renk== Color.RED) 
      Toast.makeText(getApplicationContext(), "red" , 1000).show(); 
     else if(renk== Color.YELLOW) 
      Toast.makeText(getApplicationContext(), "yellow" , 1000).show(); 
     else 
      Toast.makeText(getApplicationContext(), "unknown", 1000).show(); 

我只是得到未知敬酒消息即使我設置背景黃色..

Answer 1

這裏亞去....

Button myButton = (Button) findViewById(R.id.takePicture); 

myButton.setBackgroundDrawable(new PaintDrawable(Color.YELLOW)); 

PaintDrawable drawable = (PaintDrawable) myButton.getBackground(); 

int color = drawable.getPaint().getColor();