将滑动手势识别器添加到详细视图控制器

Question

我有一个简单的Xcode项目，只是使用了“Master-Detail Application”模板，适用于iPad。当设备处于纵向方向时，主视图会隐藏，当您在详细视图上向右滑动时，主视图将显示出来。现在，我想在详细视图上添加向右滑动手势识别器，就像这样：

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    [self configureView];

    UISwipeGestureRecognizer *gestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeHandler)];
    [self.view addGestureRecognizer:gestureRecognizer];
}

-(void)swipeHandler{
    NSLog(@"SWIPE");
}

但是这段代码导致当我在详细视图上滑动时，“SWIPE”日志会出现在控制台中，但主视图不会显示出来。

如何为详细视图添加右滑手势识别器，以便它不会阻止主视图的显示，并且我的识别器处理程序将正常工作？

提前感谢。

编辑。我希望我的右滑识别器处理程序能够与内置的识别器同时工作，该识别器可以显示主视图，但是以下代码对于这种特定情况并不是解决方案：

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{

    return YES;
}

- darko_5

Answer 1

你需要设置滑动方向才能添加正确的滑动。

UISwipeGestureRecognizer *gestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeHandler:)];
    [gestureRecognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
    [self.view addGestureRecognizer:gestureRecognizer];

而您的滑动处理程序可能如下所示

-(void)swipeHandler:(UISwipeGestureRecognizer *)recognizer {
    NSLog(@"Swipe received.");
}

- nsgulliver

---

我认为向右滑动实际上是默认方向，这不是问题所在。 - darko_5

是的，我做到了。我的识别器完美地工作，但这个内置的不再工作了，这就是问题所在。 - darko_5

你是否正确设置了gestureRecognizer的委托？因为你正在实现委托方法。 - nsgulliver

请查看这个链接，它可能对你的特定问题有所帮助：http://stackoverflow.com/questions/9628107/master-table-application - nsgulliver

[self.view addGestureRecognizer:recognizer]; // 不是 gestureRecognizer - tdios

Answer 2

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];

    UISwipeGestureRecognizer *recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRecognizer:)];
    recognizer.direction = UISwipeGestureRecognizerDirectionRight;
    recognizer.delegate = self;
    [self.view addGestureRecognizer:recognizer];
}

- (void)swipeRecognizer:(UISwipeGestureRecognizer *)sender {
    if (sender.direction == UISwipeGestureRecognizerDirectionRight){
        [UIView animateWithDuration:0.3 animations:^{
            CGPoint Position = CGPointMake(self.view.frame.origin.x + 100.0, self.view.frame.origin.y);
            self.view.frame = CGRectMake(Position.x , Position.y , self.view.frame.size.width, self.view.frame.size.height);
            [self.navigationController popViewControllerAnimated:YES];
        }];
    }
}

- Jagat Dave

Answer 3

尝试这个

//向右滑动

UISwipeGestureRecognizer *gestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeHandlerRight:)];
[gestureRecognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
[self.view addGestureRecognizer:gestureRecognizer];

//向左滑动

UISwipeGestureRecognizer *gestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeHandlerLeft:)];
[gestureRecognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];
[self.view addGestureRecognizer:gestureRecognizer];

调用方法

-(void)swipeHandlerRight:(id)sender
{
    //Your ViewController
}

-(void)swipeHandlerLeft:(id)sender
{
 //Your ViewController
}

- Nilesh Parmar

Answer 4

Swift 4.0

步骤1：在viewDidLoad()方法中添加滑动手势。

override func viewDidLoad() {
    super.viewDidLoad()

    let swipeLeft = UISwipeGestureRecognizer(target: self, action: #selector(handleGesture))
    swipeLeft.direction = .left
    self.view.addGestureRecognizer(swipeLeft)

    let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(handleGesture))
    swipeRight.direction = .right
    self.view.addGestureRecognizer(swipeRight)


}

步骤2：检查handleGesture()方法中的手势检测

@objc func handleGesture(gesture: UISwipeGestureRecognizer) -> Void {
    if gesture.direction == UISwipeGestureRecognizerDirection.right {
        print("Swipe Right")
    }
    else if gesture.direction == UISwipeGestureRecognizerDirection.left {
        print("Swipe Left")
    }

}

- Mehsam Saeed

Answer 5

这个可以用。它从导航控制器中推送视图控制器。

- (void)viewDidLoad
{
     [super viewDidLoad];
     // Do any additional setup after loading the view, typically from a nib.
     UISwipeGestureRecognizer *gestureRecognizer = [[UISwipeGestureRecognizer           alloc] initWithTarget:self  action:@selector(swipeHandler:)];
     [self.view addGestureRecognizer:gestureRecognizer];
}

-(IBAction)swipeHandler:(UISwipeGestureRecognizer *)sender
{
      NSLog(@"SWIPE");
      UIViewController *tb = [[DetailViewController alloc] init];
      tb = [self.storyboard instantiateViewControllerWithIdentifier:@"DetailViewController"];
      [self.navigationController pushViewController: tb animated:YES];
}

然后确保进入Storyboard（或者您也可以手动完成此操作）- 点击Detail View Controller并将View controller的Identity设置为：DetailViewController

- user1066524

---

我不确定如何处理你的答案。了解滑动方向能否为我解决问题？ - darko_5

我真的需要我的和内置识别器在同一个视图上工作，这个视图是详细视图。 - darko_5

你想自己处理滑动操作并禁用主视图的显示，还是想在主视图被呈现时做出反应？ - Martin Ullrich

@MartinUllrich 我想自己处理滑动操作，但我不想停止主视图的呈现。问题是，当我添加自己的滑动操作时，它会以某种方式停止呈现主视图。 - darko_5

@darko_5 你试过我上面的想法了吗？在Xcode上尝试后，我编辑了我的原始帖子并找到了解决方案。它对你有用吗？你找到了另一个解决方案吗？ - user1066524

@user1066524 我已经尝试过这段代码，它非常有趣。但是主视图需要显示而不是细节。当您在纵向模式下滑动详细视图时，主视图将默认显示，即使我添加自己的滑动处理程序，我仍然需要它显示。 - darko_5