如何在NavBar中以编程方式设置图片？ [英] How to set a picture programmatically in a NavBar?

问题描述

我有一个带有导航栏的详细视图，后面带有后退按钮和视图名称。
导航栏以编程方式设置。
显示的名称设置如下。

self.title = NSLocalizedString（name，@）;

该名称取决于所呈现的视图。

现在我想呈现一个小的导航栏上的图标也取决于视图。

我该怎么做？

你可以设置backGround图像到navigationBar 使用这个

放入 didFinishLaunchingWithOptions

  [[UINavigationBar appearance] setBackgroundImage：[UIImage imageNamed：@title_bar.png] forBarMetrics： UIBarMetricsDefault]; 
  

或者您可以在任何视图中设置导航栏图像

  UINavigationBar * navBar = [[self navigationController] navigationBar]; 
 UIImage * image = [UIImage imageNamed：@TopBar.png]; 
 [navBar setBackgroundImage：image forBarMetrics：UIBarMetricsDefault]; 
  

或者您可以在NavigationBar上设置视图 Link

  [[UINavigationBar外观] addSubview：yourView]; 
  

或

  self.navigationItem.titleView = YourView; 
  

设置标题使用h

  self.navigationItem.title = @你的标题; 
  

你可以使用这个获得navigationBarButton

   - （void）getRightBarBtn 
 {
 UIButton * Btn = [UIButton buttonWithType：UIButtonTypeCustom]; 
 
 [Btn setFrame：CGRectMake（0.0f，0.0f，68.0f，30.0f）]; 
 [Btn setBackgroundImage：[UIImage imageNamed：[NSString stringWithFormat：@yourImage.png]] forState：UIControlStateNormal]; 
 // [Btn setTitle：@OKforState：UIControlStateNormal]; 
 //Btn.titleLabel.font = [UIFont fontWithName：@Georgiasize：14]; 
 [Btn addTarget：self action：@selector（yourBtnPress :) forControlEvents：UIControlEventTouchUpInside]; 
 UIBarButtonItem * addButton = [[UIBarButtonItem alloc] initWithCustomView：Btn]; 
 [self.navigationItem setRightBarButtonItem：addButton]; 
} 
  

并在导航栏上设置简单的imageView

  UIImageView * image = [[UIImageView alloc] initWithImage：[UIImage imageNamed：@star.png]]; 
 UIBarButtonItem * backBarButton = [[UIBarButtonItem alloc] initWithCustomView：image]; 
 self.navigationItem.rightBarButtonItem = backBarButton; 
  

I have a detailview with a navigation bar with a back button and a name for the view. The navigation bar is set programmatically. The name presented is set like this.

self.title = NSLocalizedString(name, @"");

The name depends on the presented view.

Now I would like to also present a small icon on the navigation bar which also is depends on the view.

How do I do that?

解决方案

You can set backGround image to navigationBar Using this

Put in didFinishLaunchingWithOptions

[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"title_bar.png"] forBarMetrics:UIBarMetricsDefault];  

Or you can set navigation bar image in any view using

UINavigationBar *navBar = [[self navigationController] navigationBar];
    UIImage *image = [UIImage imageNamed:@"TopBar.png"];
    [navBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];

Or you can set a view on your NavigationBar Link

[[UINavigationBar appearance] addSubview:yourView]; 

or

self.navigationItem.titleView = YourView;  

And set title using h

self.navigationItem.title = @"Your Title"; 

And you can get navigationBarButton using this

-(void)getRightBarBtn
{
    UIButton *Btn =[UIButton buttonWithType:UIButtonTypeCustom];

    [Btn setFrame:CGRectMake(0.0f,0.0f,68.0f,30.0f)];
    [Btn setBackgroundImage:[UIImage imageNamed:[NSString stringWithFormat:@"yourImage.png"]]  forState:UIControlStateNormal];
    //[Btn setTitle:@"OK" forState:UIControlStateNormal];
    //Btn.titleLabel.font = [UIFont fontWithName:@"Georgia" size:14];
    [Btn addTarget:self action:@selector(yourBtnPress:) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithCustomView:Btn];
    [self.navigationItem setRightBarButtonItem:addButton];
}

And set simple imageView on navigation Bar

UIImageView *image = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"star.png"]];
UIBarButtonItem *backBarButton = [[UIBarButtonItem alloc] initWithCustomView:image];
self.navigationItem.rightBarButtonItem = backBarButton;

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