mPaintIn = new Paint();mPaintIn.setAntiAlias(true);mPaintIn.setDither(true);mPaintIn.setStyle(Paint.Style.FILL);    mPaintIn.setColor(getResources().getColor(R.color.colorPrimary));mPaintOut = new Paint();mPaintOut.setAntiAlias(true);mPaintOut.setDither(true);mPaintOut.setStyle(Paint.Style.FILL);   mPaintOut.setColor(getResources().getColor(R.color.colorAccent));

int width = getMeasureWidth();int height = getMeasureHeight();

@Override  protected void onDraw(Canvas canvas) {    //繪制背景,在繪制文字之前繪制    canvas.drawRect(new Rect(0, 0, getMeasuredWidth(), getMeasuredHeight()), mPaintIn);    canvas.drawRect(new Rect(10, 10, getMeasuredWidth()-10, getMeasuredHeight()-10), mPaintOut);    super.onDraw(canvas);  }