android – 如何设置笔触颜色以在画布上绘制矩形？

我想绘制一个圆形矩形,其笔划为蓝色,填充为红色,但我在Paint类中找不到设置笔触颜色的方法.我怎样才能做到这一点？

mCanvas.drawColor(mBackgroundColor,PorterDuff.Mode.CLEAR);
    mCanvas.setDrawFilter(mPaintFlagsDrawFilter);

    mPaint.setStyle(Paint.Style.FILL_AND_stroke);
    mPaint.setColor(Color.RED);
    mPaint.setstrokeWidth(2);
    mPaint.setstrokeCap(Paint.Cap.ROUND);
    mRectF.set(0,mWidth,mHeight);
    mCanvas.drawRoundRect(mRectF,10,mPaint);

解决方法

油漆一次只允许一种颜色.

mCanvas.drawColor(mBackgroundColor,PorterDuff.Mode.CLEAR);
mCanvas.setDrawFilter(mPaintFlagsDrawFilter);

mFillPaint.setStyle(Paint.Style.FILL);
mFillPaint.setColor(Color.RED);
mstrokePaint.setStyle(Paint.Style.stroke);
mstrokePaint.setColor(Color.BLUE);
mstrokePaint.setstrokeWidth(2);
mstrokePaint.setstrokeCap(Paint.Cap.ROUND);
mRectF.set(0,mHeight);
mCanvas.drawRoundRect(mRectF,mFillPaint);
mCanvas.drawRoundRect(mRectF,mstrokePaint);

如果您发现圆角矩形看起来不正确,则可能会在视图的边界处剪切.调整RectF以允许strokeWidth的一半：

mRectF.set(1,1,mWidth - 1,mHeight - 1);