添加滑动手势，无法滑动

Question

这里我有三个视图，一个是左、中、右，所以我想添加滑动功能，我尝试了以下方式但仍然无法实现。我该怎么做。

代码：

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


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

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

        UISwipeGestureRecognizer *gestureRecognizer2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeHandlerLeft:)];
        [gestureRecognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];
        [self.view addGestureRecognizer:gestureRecognizer2];

    }

右转

    -(void)swipeHandlerRight:(id)sender
    {

         RightViewController *videoScreen=[self.storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];


CATransition* transition = [CATransition animation];
    transition.duration = 0;
    transition.type = kCATransitionFromRight;
   // transition.subtype = kCATransitionFromRight;
    [self.view.window.layer addAnimation:transition forKey:kCATransition];
    [self presentViewController:videoScreen animated:NO completion:nil];


    }

左转

    -(void)swipeHandlerLeft:(id)sender
    {
        LeftViewController *videoScreen=[self.storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
         CATransition* transition = [CATransition animation];
    transition.duration = 0;
    transition.type = kCATransitionFromLeft;
    // transition.subtype = kCATransitionFromRight;
    [self.view.window.layer addAnimation:transition forKey:kCATransition];


    }

Answer 1

替换这个

[self.navigationController pushViewController:videoScreen animated:YES];

由此

[self presentViewController:videoScreen animated:YES completion:NULL];

它会让你的视图控制器出现。但是由于左视图控制器或右视图控制器没有手势识别器，因此您不会从那些视图控制器返回。为此，您必须让它们喜欢滑动。

Answer 2

我得到了解决方案兄弟。我为你的问题尝试了示例项目。现在我得到了解决方案。

首先我在storyboard中设置了ViewControllers。在下面的截图中查看包含UINavigationController、ViewController、LeftViewController、RightViewController的storyboard。

然后在 ViewController.m 中

#import "ViewController.h"
#import "RightViewController.h"
#import "LeftViewController.h"

@interface ViewController ()

@end

@implementation ViewController

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

- (void)didReceiveMemoryWarning 
{
   [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
}


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

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

  //swipe left
  UISwipeGestureRecognizer *gestureRecognizer2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeHandlerLeft:)];
  [gestureRecognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];
  [self.view addGestureRecognizer:gestureRecognizer2];

}

#pragma mark - swipe right function
-(void)swipeHandlerRight:(id)sender
{
   RightViewController *videoScreen=[self.storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];

   CATransition *animationRight = [CATransition animation];
   [animationRight setDuration:0];
   [animationRight setType:kCATransitionFromRight];
   [animationRight setSubtype:kCATransitionFromRight];
   [animationRight setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
   [self.view.window.layer addAnimation:animationRight forKey:kCATransition];
   [self presentViewController:videoScreen animated:NO completion:nil];
}

#pragma mark - swipe left function
-(void)swipeHandlerLeft:(id)sender
{
   LeftViewController *videoScreen=[self.storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
   CATransition *animationLeft = [CATransition animation];
   [animationLeft setDuration:0];
   [animationLeft setType:kCATransitionFromLeft];
   [animationLeft setSubtype:kCATransitionFromLeft];
   [animationLeft setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
   [self.view.window.layer addAnimation:animationLeft forKey:kCATransition];
   [self presentViewController:videoScreen animated:NO completion:nil];
}

RightViewController.m

#import "RightViewController.h"

@interface RightViewController ()

@end

@implementation RightViewController

- (void)viewDidLoad
{
  [super viewDidLoad];
  // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning 
{
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
}

#pragma mark - Back to MiddleView
- (IBAction)actionBackToMiddleView:(id)sender
{
   [self dismissViewControllerAnimated:YES completion:nil];
}
@end

LeftViewController.m

#import "LeftViewController.h"

@interface LeftViewController ()

@end

@implementation LeftViewController

- (void)viewDidLoad
{
   [super viewDidLoad];
   // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning 
{
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
}

#pragma mark - Back to MiddleView
- (IBAction)actionBackToMiddleViewFromLeftView:(id)sender
{
   [self dismissViewControllerAnimated:YES completion:nil];
}
@end