Java Rotate A Saved Bitmap In Android Stack Overflow

Java Rotate A Saved Bitmap In Android Stack Overflow Use a matrix.rotate (degrees) and draw the bitmap to it's own canvas using that rotating matrix. i don't know though if you might have to make a copy of the bitmap before drawing. use bitmap press ( ) to compress your bitmap to an outputstream. the solution of singhak works fine. Rotating a bitmap in android is a common requirement for image manipulation, particularly in apps that handle user photos or graphics. by utilizing the android graphics api, you can seamlessly rotate a bitmap to the desired angle. matrix matrix = new matrix(); matrix.post rotate(angle);.

Java Rotate A Saved Bitmap In Android Stack Overflow Int width = original.getwidth (); int height = original.getheight (); matrix matrix = new matrix (); matrix.prerotate (degrees); bitmap rotatedbitmap = bitmap.createbitmap (original, 0, 0, width, height, matrix, true); canvas canvas = new canvas (rotatedbitmap); canvas.drawbitmap (original, 5.0f, 0.0f, null); return rotatedbitmap; }. Public static bitmap rotate( int rotatedegree, bitmap originalbitmap) { matrix matrix = new matrix(); matrix.postrotate(rotatedegree); bitmap rotatebitmap = bitmap.createbitmap(originalbitmap, 0, 0, originalbitmap.getwidth(), originalbitmap.getheight(), matrix, true); from w w w . j a v a2 s . c o m return rotatebitmap; } } previous next.

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