Drag & Drop iOS
In iOS, we can detect drag and drop(swipe operation).
This is a sample for it.
Sample
This sample is to create new view in ViewController and set pan event
using UIPanGestureRecognizer
ViewController.m
@interface ViewController () @property (nonatomic) UIView *dragView; @end - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. [self.view setBackgroundColor:[UIColor blueColor]]; // Test Drag [self dragViewTest]; } #pragma mark - #pragma mark - Drag and Drop -(void)dragViewTest { // Create View CGRect rect = CGRectMake(10, 10, 300, 100); self.dragView = [[UIView alloc] initWithFrame:rect]; [self.dragView setBackgroundColor:[UIColor redColor]]; [self.view addSubview:self.dragView]; // Drag UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(dragView:)]; // Add Gesture to view [self.dragView addGestureRecognizer:pan]; } -(void)dragView:(UIPanGestureRecognizer *)sender { CGPoint location = [sender translationInView:self.view]; NSLog(@"Drag x %f, y %f", location.x, location.y); self.dragView.frame = CGRectMake(location.x, 10, 300, 100); }
The important thing is to create UIPanGestureRecognizer instance and set it to the target view. In this case, it is view which is created in dragViewTest method.