导航栏在iOS10

改变了我使用下面的代码设置左&右侧栏项目，导航栏在iOS10

self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"nav-back"] 
                     style:UIBarButtonItemStylePlain 
                     target:self 
                     action:@selector(leftItemTapped:)];

现在停在iOS的10个工作，该项目是“无法点击”

任何一个知道如何解决这个问题？

来源

2016-09-15 daisy

尝试，如果一个标准的系统按钮将工作：'self.navigationItem。 leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem：UIBarButtonSystemItemCancel target：self action：@selector（leftItemTapped）];' –

顺便说一句，你如何操作，在iOS 10中对我来说就像一个魅力。我将它设置为' viewDidLoad'。 –

写代码viewWillAppear，它应该正常工作...

-(void)viewWillAppear:(BOOL)animated { 

    [super viewWillAppear:YES]; 
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"nav-back"] 
                     style:UIBarButtonItemStylePlain 
                     target:self 
                     action:@selector(leftItemTapped:)]; 

}

来源

2016-09-15 09:08:49 Rahul

试试这个代码：

-(void)viewWillAppear:(BOOL)animated { 

    [super viewWillAppear:YES]; 
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"nav-back"] 
                     style:UIBarButtonItemStylePlain 
                    target:self 
                    action:@selector(leftItemTapped:)]; 

} 


- (IBAction)leftItemTapped:(id)sender{ 
    NSLog(@"Navigation"); 
} 


Output: 
2016-09-15 15:30:00.972 test[34398:248335] Navigation

来源

2016-09-15 10:01:59

导航栏在iOS10

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