六种手势
Posted Da雪山
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1.点击
UITapGestureRecognizer *tapGes = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapGR:)];
tapGes.numberOfTouchesRequired = 1;
tapGes.numberOfTapsRequired = 2;
[self.view addGestureRecognizer:tapGes];
- (void)tapGR:(UIGestureRecognizer *)Gesture{
NSLog(@"点击手势");
UIView *v = Gesture.view;
v.backgroundColor = [UIColor greenColor];
}
2.拖拽
UIPanGestureRecognizer *panGes = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panView:)];
[_panView addGestureRecognizer:panGes];
}
- (void)panView:(UIGestureRecognizer *)Gesture{
NSLog(@"pan");
CGPoint viewP;
CGPoint panP;
if (Gesture.state == UIGestureRecognizerStateBegan) {
viewP = _panView.center;
panP = [Gesture locationInView:self.view];
}
CGPoint nowP = [Gesture locationInView:self.view];
float x = nowP.x - panP.x;
float y = nowP.y - panP.y;
_panView.center = CGPointMake(viewP.x + x, viewP.y + y);
}
3.轻扫
// UISwipeGestureRecognizer *swipeGes = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeGR:)];
// swipeGes.numberOfTouchesRequired = 1;//几个手指
// swipeGes.direction = UISwipeGestureRecognizerDirectionUp;
// [self.view addGestureRecognizer:swipeGes];
//四个方向的手势
for (int i = 0; i<4; i++) {
UISwipeGestureRecognizer *swipeGes = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeGR:)];
swipeGes.numberOfTouchesRequired = 1;//几个手指
swipeGes.direction = 1<<i;
[self.view addGestureRecognizer:swipeGes];
}
}
- (void)swipeGR:(UISwipeGestureRecognizer *)gesture{
NSLog(@"swipe");
NSInteger dir = gesture.direction;
NSString *str;
if (dir == 1<<0 ? str = @"向上": @"") {
NSLog(@"%@",str);
}
}
4.长按
UILongPressGestureRecognizer *longGes = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longGes:)];
longGes.minimumPressDuration = 1;
[self.view addGestureRecognizer:longGes];
}
- (void)longGes:(UIGestureRecognizer *)gesture{
NSLog(@"longpress");
}
5.旋转
UIRotationGestureRecognizer *rotationGes = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationGes:)];
[self.view addGestureRecognizer:rotationGes];
}
//
- (void)rotationGes:(UIRotationGestureRecognizer *)gesture{
NSLog(@"rotaiton");
static CGFloat startRot;
self.view.transform = CGAffineTransformMakeRotation(gesture.rotation + startRot);
if (gesture.state == UIGestureRecognizerStateEnded) {
startRot += gesture.rotation;
}
}
6.捏合(放大/缩小)
UIPinchGestureRecognizer *pinchGes = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchGes:)];
[self.view addGestureRecognizer:pinchGes];
}
- (void)pinchGes:(UIPinchGestureRecognizer *)gesture{
NSLog(@"pinch");
static CGFloat startScale = 1;
self.view.transform = CGAffineTransformMakeScale(gesture.scale * startScale, gesture.scale * startScale);
if (gesture.state == UIGestureRecognizerStateEnded) {
startScale *= gesture.scale;
}
}
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