Border over a bitmap with rounded corners in Android

Question

I used the below to make a bitmap with rounded corners. Now I want to draw a line around the bitmap.

private BitmapDrawable roundCornered(BitmapDrawable scal         


        

Answer 1

I use BitmapShader and drawRoundRect do it and it work for me, look at the screenshot

RectF roundRect; // the Rect you have to draw into
Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

// draw the border at bottom
mPaint.setStyle(Paint.Style.FILL);
mPaint.setColor(mBorderColor);
canvas.drawRoundRect(roundRect, mRadius, mRadius, mPaint);

// ------------------ draw scheme bitmap
roundRect.set(itemRect.left + mBorderSize, itemRect.top + mBorderSize, itemRect.right - mBorderSize, itemRect.bottom - mBorderSize);
Shader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
mPaint.setShader(shader);
canvas.drawRoundRect(roundRect, mRadius, mRadius, mPaint);
mPaint.setShader(null);