Rotating an image around a specified point doesn't work! (Android)

Question

I\'m rotating an ImageView with postRotate(float degrees, float px, float py), setting px and py to a few differnt values including (0,0) and (imgView.getHeight(),imgView.ge

Answer 1

I am using a custom ImageView where I set the angle rotation.

public class CompassImage extends ImageView {
    private float angleRotation;

    public CompassImage(Context context) {
        super(context);
    }

    public CompassImage(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CompassImage(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public void setAngleRotation(float angleRotation) {
        this.angleRotation = angleRotation;
        invalidate();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        Rect clipBounds = canvas.getClipBounds();
        canvas.save();
        canvas.rotate(angleRotation, clipBounds.exactCenterX(), clipBounds.exactCenterY());
        super.onDraw(canvas);
        canvas.restore();
    }
}

If you play around with clipBounds you may find that helpful.