xcode 使用“完成”按钮以编程方式添加 UINavigationBar
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Add UINavigationBar programmatically with a Done button
提问by iPwnTech
So I have a modal view and want to add a UINavigationBar programmatically with a Done button to dismiss this view when the user finishes reading the content.
所以我有一个模态视图，并希望以编程方式添加一个带有完成按钮的 UINavigationBar 以在用户完成阅读内容时关闭此视图。
Any ideas on how to do this and if it's possible purely without using the interface builder?
关于如何做到这一点的任何想法，以及是否可以完全不使用界面构建器？
回答by codeRefiner
I am sorry that nobody here actually read your question... here is the code you are looking for:
很抱歉，这里没有人真正阅读您的问题......这是您正在寻找的代码：
UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 44)];
navBar.backgroundColor = [UIColor whiteColor];
UINavigationItem *navItem = [[UINavigationItem alloc] init];
navItem.title = @"Navigation Bar title here";
UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithTitle:@"Left" style:UIBarButtonItemStylePlain target:self action:@selector(yourMethod:)];
navItem.leftBarButtonItem = leftButton;
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithTitle:@"Post" style:UIBarButtonItemStylePlain target:self action:@selector(yourOtherMethod:)];
navItem.rightBarButtonItem = rightButton;
navBar.items = @[ navItem ];
[self.view addSubview:navBar];
I hope this helps, good luck :)
我希望这会有所帮助，祝你好运:)
Add this code to your viewDidLoad method and everything will construct itself. Mind you, replace the selectors with your own method signatures-
将此代码添加到您的 viewDidLoad 方法中，一切都会自行构建。请注意，用您自己的方法签名替换选择器-
Happy coding
快乐编码
回答by Gabriele Petronella
It is definitely possible.
这绝对是可能的。
Probably the easiest way is to embed the UIViewControlleryour are presenting modally into a UINavigationViewControllerand then add the Donebutton, doing something like
可能最简单的方法是将UIViewController您以模态方式呈现的内容嵌入到 a 中UINavigationViewController，然后添加Done按钮，执行类似的操作
UIBarButtonItem * doneButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:@selector(dismiss)];
self.navigationItem.rightBarButtonItem = doneButton;
and implement a dismissmethod like follows
并实现dismiss如下方法
- (void)dismiss {
[self.presentingViewController dismissViewControllerAnimated:YES
????? completion:nil];
}
回答by iPatel
//add done button to navigation bar
UIBarButtonItem *doneBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(userPressedDone)];
self.navigationItem.rightBarButtonItem = doneBarButtonItem;
Then have a method like this somewhere in your view controller
然后在你的视图控制器的某个地方有一个这样的方法
-(void)userPressedDone {
// Action For Done Button Tapped
}
