如何從泛姿態觸發棘手？

Question

我在StoryBoard中的UIViewController上設置了以下平移手勢代碼。

在viewDidLoad中：

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panDetected:)]; 
[self.view addGestureRecognizer:panRecognizer]; 

然後我有以下稱爲：

#pragma mark - GESTURE RECOGNIZERS 

- (void)panDetected:(UIPanGestureRecognizer *)panRecognizer 
{ 
CGPoint velocity = [panRecognizer velocityInView:self.view]; 

NSLog(@"Pan Detected."); 

if(velocity.x > 0) 
{ 
    NSLog(@"Pan went right."); 
} 
else 
{ 
    NSLog(@"Pan went left."); 

    if (panRecognizer.state == UIGestureRecognizerStateChanged) 
     NSLog(@"State Changed."); 
} 
} 

上面的代碼火災時，我拖我的手指由左到右。我希望它只在從屏幕右邊緣拖動時觸發。然後我想繼續使用另一個StoryBoard上的UIViewController。 （我想在設置屏幕上從右邊拖動到應用程序的主屏幕上）。 UIViewController只需部分拖到屏幕上即可。

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{ 
NSLog(@"prepareForSegue: %@", segue.identifier); 
if([segue.identifier isEqualToString:@"Settings"]) 
{ 
    NSLog(@"Show Settings View Controller"); 
    OLStoryboardLink *storyboardLink = segue.destinationViewController; 
    //send the string 
    storyboardLink.setStoryboardName = @"Settings"; 
    storyboardLink.transitioningDelegate = self; 
    [self presentViewController:storyboardLink animated:YES completion:nil]; 
} 
} 

如何從屏幕的右邊緣觸發平移手勢？

Answer 1

段落不能從故事板A中的viewController執行到故事板B中的viewController。要使用segues，2 viewController必須位於同一個Storyboard中。方法：

但是，爲了回答這個問題，你通過調用performSegueWithIdentifier觸發賽格瑞

- (void)panDetected:(UIPanGestureRecognizer *)panRecognizer 
{ 
    CGPoint velocity = [panRecognizer velocityInView:self.view]; 

    NSLog(@"Pan Detected."); 

    if (velocity.x > 0) 
    { 
     NSLog(@"Pan went right."); 
    } 
    else 
    { 
     NSLog(@"Pan went left.");  

     if (panRecognizer.state == UIGestureRecognizerStateChanged) 
      NSLog(@"State Changed."); 

     [self performSegueWithIdentifier:@"Settings" sender:panRecognizer]; 
    } 
} 

有關詳細信息，請參閱Apple's reference