@property (weak, nonatomic) IBOutlet UIView *dragView;//可以是UIView的子类 @property (nonatomic, strong) UIPanGestureRecognizer *panGestureRecognizer;//添加在视图上的拖动手势 @property (weak, nonatomic) IBOutlet UIButton *btnUnfold; @end @implementation SecondViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. [self.dragView addGestureRecognizer:self.panGestureRecognizer]; _dragView.layer.cornerRadius = 15; _dragView.layer.masksToBounds = YES; UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:_btnUnfold.bounds byRoundingCorners:UIRectCornerBottomLeft|UIRectCornerBottomRight cornerRadii:CGSizeMake(8.0, 8.0)]; CAShapeLayer *maskLayer = [CAShapeLayer layer]; maskLayer.frame = _btnUnfold.bounds; maskLayer.path = maskPath.CGPath; _btnUnfold.layer.mask = maskLayer; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (UIPanGestureRecognizer *)panGestureRecognizer { if (!_panGestureRecognizer) { _panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(dragViewMoved:)]; } return _panGestureRecognizer; } - (void)dragViewMoved:(UIPanGestureRecognizer *)panGestureRecognizer { if (panGestureRecognizer.state == UIGestureRecognizerStateChanged) { CGPoint translation = [panGestureRecognizer translationInView:self.dragView]; CGFloat heightDiff = self.tabBarController.tabBar.frame.origin.y - self.dragView.frame.origin.y; NSLog(@"heightDiff:%f",heightDiff); NSLog(@"dragViewHight:%f",self.dragView.frame.origin.y); NSLog(@"tabBarItemHight:%f",self.tabBarController.tabBar.frame.origin.y); // tabBar 高度 if (self.dragView.frame.origin.y + translation.y + 30 <= self.tabBarController.tabBar.frame.origin.y && self.dragView.frame.origin.y + translation.y + 330 >= self.tabBarController.tabBar.frame.origin.y) { self.dragView.center = CGPointMake(self.dragView.center.x, self.dragView.center.y + translation.y); NSLog(@"location X:%f, Y:%f",self.dragView.center.x + translation.x, self.dragView.center.y + translation.y); } //关键,不设为零会不断递增,视图会突然不见 [panGestureRecognizer setTranslation:CGPointZero inView:self.view]; } } @end
ios view控件手势拖动
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转载自blog.csdn.net/dopamy_busymonkey/article/details/80788876
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