ios手勢識別之拖拽

標籤：

 1 #import "NJViewController.h" 2  3 @interface NJViewController () 4 @property (weak, nonatomic) IBOutlet UIView *customView; 5  6 @end 7  8 @implementation NJViewController 9 10 - (void)viewDidLoad11 {12     [super viewDidLoad];13     UIPanGestureRecognizer  *pan = [[UIPanGestureRecognizer alloc] init];14     [self.customView addGestureRecognizer:pan];15     16     [pan addTarget:self action:@selector(panView:)];17 }18 19 - (void)panView:(UIPanGestureRecognizer *)pan20 {21     // 返回的值是以手指按下的點為原點22     // 1 2 3 4 523     CGPoint point = [pan translationInView:pan.view];24     25     NSLog(@"拖拽事件 %@", NSStringFromCGPoint(point));26     CGPoint temp = self.customView.center;27     temp.x += point.x;28     temp.y += point.y;29     self.customView.center = temp;30     31     [pan setTranslation:CGPointZero inView:pan.view];32 }33 34 @end

 

ios手勢識別之拖拽