CanvasTransformerBuilder.java 文件源码

public CanvasTransformer zoom(final int openedX, final int closedX, 
        final int openedY, final int closedY,
        final int px, final int py, final Interpolator interp) {
    initTransformer();
    mTrans = new CanvasTransformer() {
        public void transformCanvas(Canvas canvas, float percentOpen) {
            mTrans.transformCanvas(canvas, percentOpen);
            float f = interp.getInterpolation(percentOpen);
            canvas.scale((openedX - closedX) * f + closedX,
                    (openedY - closedY) * f + closedY, px, py);
        }           
    };
    return mTrans;
}