AlertDialog 배경 못바꾸나요??

Question

if(r>=1000 && r<=1499){
    		dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.bronze));
    	}else if(r>=1500 && r<=1799){
    		dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.silver));
    	}else if(r>=1800 && r<=2099){
    		dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.gold));
    	}else if(r>=2100 && r<=2399){
    		dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.platinum));
    	}else if(r>=2400 && r<=2999){
    		dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.diamond));
    	}else{
    		dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.challenger));
    	}
dialog.show();

이렇게 했는데도 계속 검은 배경이네요... 

Answer 1

Dialog 를 사용하세요.