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                        /移动开发
                        
                            /Android
                        
                        /Android实现抽奖转盘

老师，我在绘制盘块背景的时候，模拟器上面不能显示背景

/**
* 设置背景图
*/
private Bitmap mBgBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.bg);

/**
*绘制背景
*/

private void drawBg() {
mCanvas.drawColor(0xffffffff);
mCanvas.drawBitmap(mBgBitmap,null,new RectF(mPadding/2,mPadding/2,getMeasuredWidth()-mPadding/2,getMeasuredHeight()-mPadding/2),null);
}