资源图片和BItmap、Drawable互转

//Bitmap 转 DrawableBitmapDrawable bd = new BitmapDrawable(bitmap);//Drawable 转 BitmapDrawable db = XX;BitmapDrawable bd = new (BitmapDrawable)db;Bitmap bmp = bd.getBitmap();//资源图片 转 DrawableResources r = getBaseContext().getResources();Drawable d = r.getDrawable(R.drawable.XX);//紫红色et.setTextColor(Color.MAGENTA);//直接拿系统资源色做背景btn.setBackgroundDrawableResource(R.color.red_bg);