[android-developers] Re: drawBitmap Flip, Scale and Translate

Anyone ?


On Saturday, August 10, 2013 9:56:24 PM UTC+5:30, decode wrote:

I have my code as below :

canvas.drawBitmap(bitmap, src, dest,p); (p is null. using default paint, src is null aswell)

src and dest are Rect

I am trying to flip the bitmap horizontally by using canvas.scale as below

            canvas.save();
            canvas.scale(-1.0f, 1.0f);
            canvas.drawBitmap(bitmap, src, dest, p);

The image just diappeared.

I am trying to use matrices. But I feel there should be some easier way around.

I want to flip the image and draw in the rect dest(positon and scaling)


Code I am trying now

    Matrix flipmatrix = new Matrix();
            flipmatrix .setScale(-1, 1);
            flipmatrix .postScale(calcScaleX, calcScaleY);
            flipmatrix .postTranslate(calcPosX,calcPosY);
            c.drawBitmap(bitmap, flipmatrix , null);



Can anyone help me with this. I am not good with matrices. I think there is a easier way out

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