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)viewDidLoad
11 {
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 *)pan
20 {
21 // 返回的值是以手指按下的点为原点
22 // 1 2 3 4 5
23 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
