How to rotate an image on touch

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Hi,

i m trying to develop an application that has a rotary dial like image and i need to rotate it on touch.

i tried searching but got a lot of complex equations which i cant figure out :(

can anybody help me :(

Posted 18-Apr-12 1:07am

Member 8112150

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Fredrik Bornander · Answer 1 · 2012-04-18T02:02:00

Solution 1

This article can be adapted to do what you want; Simple Gestures on Android[^].

Hope this helps,
Fredrik

Posted 18-Apr-12 2:02am

Fredrik Bornander

Member 8112150 · Answer 2 · 2012-04-23T02:48:00

i am still trying with the above problem..
in the Code below the PostTranslate does not create any change to the bitmap..
kindly help as to where i am goin wrong :'(

Java

Matrix nwMat = new Matrix();
nwMat.postTranslate(200,200);
        Bitmap redrawnBitmap1 = Bitmap.createBitmap(bitmap1, 0, 0, bitmap1.getWidth(), bitmap1.getHeight(), nwMat, true);
        ServerImage.setImageBitmap(redrawnBitmap1);