/*** 变换操作*/
public class TransformView extends View {private Paint mPaint;public TransformView(Context context) {this(context, null);}public TransformView(Context context, AttributeSet attrs) {this(context, attrs, 0);}public TransformView(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);init();}private void init() {mP