启用长按事件 UILongPressGestureRecognizer

UILongPressGestureRecognizer *longPressGR =          [[UILongPressGestureRecognizer alloc] initWithTarget:self                                                        action:@selector(handleLongPress:)];         longPressGR.minimumPressDuration = 0.2;         [self addGestureRecognizer:longPressGR];         [longPressGR release]; - (void)handleLongPress:(UIGestureRecognizer *)gestureRecognizer {     NSLog(@"LONG PRESS"); } UILongPressGestureRecognizer  正解，要求ios3.2以上