blocks|key|889098|text|你使用这个代码，使用你自己的镜像，而不是内置的使用你的镜像……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|889099|-+(id)init+{
UIImage*+anImage+=+[UIImage+imageNamed:@"newspaper.png"];
UITabBarItem*+theItem+=+[[UITabBarItem+alloc]+initWithTitle:@"News"+image:anImage+tag:0];
self.tabBarItem+=+theItem;
[theItem+release];
return+self;++}|code-block|syntax|javascript|889100|newspaper.png是我在标签栏中的图片...|889101|好了，现在这就足够解决你的问题了。|889102|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

k you use this code and used your own images not the built in one's used your images...

<pre><code>- (id)init {
UIImage* anImage = [UIImage imageNamed:@"newspaper.png"];
UITabBarItem* theItem = [[UITabBarItem alloc] initWithTitle:@"News" image:anImage tag:0];
self.tabBarItem = theItem;
[theItem release];
return self; }
</code></pre>

newspaper.png is my own image in the tab bar...

k fine now this will be sufficient for your problem...

blocks|key|671828|text|如果想要更改UITabbarItem的图像，可以使用它的实例方法|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|671829|-+(id)initWithTitle:(NSString++*)title+image:(UIImage++*)image+tag:(NSInteger)tag|code-block|syntax|javascript|671830|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.apple.com/library/ios/#documentation/uikit/reference/UITabBarItem_Class/Reference/Reference.html^0|6|C|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If you want to change the image for <a href="http://developer.apple.com/library/ios/#documentation/uikit/reference/UITabBarItem_Class/Reference/Reference.html" rel="nofollow">UITabbarItem</a> you can make use of its instance method

<pre><code>- (id)initWithTitle:(NSString *)title image:(UIImage *)image tag:(NSInteger)tag
</code></pre>

blocks|key|888958|text|在使用tab的viewController中实现init()。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|888959|-+(id)init+{

if+(self+=+[super+initWithNibName:@"Search"+bundle:nil])+{
++++UIImage*+tabImage+=+[UIImage+imageNamed:@"search.png"];
++++UITabBarItem*+theItem+=+[[UITabBarItem+alloc]+initWithTitle:@"Search"+image:tabImage+tag:0];
++++self.tabBarItem+=+theItem;
++++[theItem+release];
}
return+self;
}++|code-block|syntax|javascript|888960|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Implement init() in viewController in which you are using tab. 

<pre><code>- (id)init {

if (self = [super initWithNibName:@"Search" bundle:nil]) {
 UIImage* tabImage = [UIImage imageNamed:@"search.png"];
 UITabBarItem* theItem = [[UITabBarItem alloc] initWithTitle:@"Search" image:tabImage tag:0];
 self.tabBarItem = theItem;
 [theItem release];
}
return self;
} 
</code></pre>

blocks|key|889054|text|有两种方法可以做到这一点，通过编程或通过可视化使用(使用IB)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|889055|以编程方式：|889056|UITabBarItem*+theItem+=+[[UITabBarItem+alloc]+initWithTitle:@"News"+image:anImage+tag:0];|code-block|syntax|javascript|889057|使用此选项或如果您正在进行可视化操作：-单击IB中的特定选项卡图标，然后选择customize和图标，并给出特定图标文件的名称。|889058|希望这能解决你的问题。|889059|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

There are always two ways of doing this by programmatically or by using visually(using IB)

Programmatically:-

<pre><code>UITabBarItem* theItem = [[UITabBarItem alloc] initWithTitle:@"News" image:anImage tag:0];
</code></pre>

use this or if you are doing visually:-
Click on the particular tab icon in the IB and chose customize and icon and give the name of particular icon file.

May this will solve your problem...

blocks|key|889151|text|你可以像这样改变它。在选项卡栏控制器委托方法中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|889152|-+(void)tabBarController:(UITabBarController+*)tabBarController+didSelectViewController:(UIViewController+*)viewController

{
++++if([tabBarController+selectedIndex]+==+0)
++++{
++++++++[viewController.tabBarItem+setFinishedSelectedImage:[UIImage+imageNamed:@"selected.png"]withFinishedUnselectedImage:[UIImage+imageNamed:@"unselect.png"]];
++++}++++
}|code-block|syntax|javascript|889153|通过此选项，您可以更改您的tabbaritem图像。|889154|或者可以直接在视图控制器init(或ViewWillAppear)方法中使用，如|889155|++++++++[viewController.tabBarItem+setFinishedSelectedImage:[UIImage+imageNamed:@"selected.png"]withFinishedUnselectedImage:[UIImage+imageNamed:@"unselect.png"]];|889156|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You can change it like.
in tabbar controller delegate method 

<pre><code>- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController

{
 if([tabBarController selectedIndex] == 0)
 {
 [viewController.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"selected.png"]withFinishedUnselectedImage:[UIImage imageNamed:@"unselect.png"]];
 } 
}
</code></pre>

through this you can change your tabbaritem image. 

Or you can use directly in your view controllers init(or ViewWillAppear) method, like

<pre><code> [viewController.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"selected.png"]withFinishedUnselectedImage:[UIImage imageNamed:@"unselect.png"]];
</code></pre>

blocks|key|672371|text|首先，你用下面的代码来创建class：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|672372|extension+UITabBarController+{

++++func+addIcon(icon+:+UIImage,+deselectIcon+:+UIImage,+buttonIndex+:+Int,+currentPage+:+Int){

++++++++var+index+=+0
++++++++for+view+in+view.subviews+{

++++++++++++if+view.subviews.count+>+3+{

++++++++++++++++for+_view+in+view.subviews+{

++++++++++++++++++++if+index+==+buttonIndex+{

++++++++++++++++++++++++for+v+in+_view.subviews+{

++++++++++++++++++++++++++++if+v+is+UIImageView+{
++++++++++++++++++++++++++++++++v.removeFromSuperview()
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}

++++++++++++++++++++++++let+img+=+UIImageView(frame:+CGRect(x:+_view.frame.width+/+2+-+15,+y:+4,+width:+30,+height:+30))

++++++++++++++++++++++++if+buttonIndex+==+currentPage+{
++++++++++++++++++++++++++++img.image+=+icon
++++++++++++++++++++++++}else{
++++++++++++++++++++++++++++img.image+=+deselectIcon
++++++++++++++++++++++++}
++++++++++++++++++++++++img.contentMode+=+.scaleAspectFit

++++++++++++++++++++++++_view.addSubview(img)


++++++++++++++++++++}
++++++++++++++++++++index+%2B=+1
++++++++++++++++}

++++++++++++}
++++++++}

++++}
}|code-block|syntax|javascript|672373|在didload中，您可以调用函数：|offset|length|style|CODE|672374|override+func+viewDidLoad()+{
++++super.viewDidLoad()



++++DispatchQueue.main.asyncAfter(deadline:+DispatchTime.now()+%2B+0.1+)+{
++++++++self.tabBarController?.addIcon(icon:+#imageLiteral(resourceName:+"Shop"),+deselectIcon:+#imageLiteral(resourceName:+"Shop"),+buttonIndex:+1,+currentPage:+1)
++++}
}

override+func+viewWillAppear(_+animated:+Bool)+{

++++tabBarController?.addIcon(icon:+#imageLiteral(resourceName:+"Shop"),+deselectIcon:+#imageLiteral(resourceName:+"Shop"),+buttonIndex:+1,+currentPage:+1)

}|672375|entityMap^0|0|0|1|7|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

First you make class this code : 

<pre><code>extension UITabBarController {

 func addIcon(icon : UIImage, deselectIcon : UIImage, buttonIndex : Int, currentPage : Int){

 var index = 0
 for view in view.subviews {

 if view.subviews.count &gt; 3 {

 for _view in view.subviews {

 if index == buttonIndex {

 for v in _view.subviews {

 if v is UIImageView {
 v.removeFromSuperview()
 }
 }

 let img = UIImageView(frame: CGRect(x: _view.frame.width / 2 - 15, y: 4, width: 30, height: 30))

 if buttonIndex == currentPage {
 img.image = icon
 }else{
 img.image = deselectIcon
 }
 img.contentMode = .scaleAspectFit

 _view.addSubview(img)


 }
 index += 1
 }

 }
 }

 }
}
</code></pre>

In <code>didload</code> you call function : 

<pre><code>override func viewDidLoad() {
 super.viewDidLoad()



 DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 0.1 ) {
 self.tabBarController?.addIcon(icon: #imageLiteral(resourceName: "Shop"), deselectIcon: #imageLiteral(resourceName: "Shop"), buttonIndex: 1, currentPage: 1)
 }
}

override func viewWillAppear(_ animated: Bool) {

 tabBarController?.addIcon(icon: #imageLiteral(resourceName: "Shop"), deselectIcon: #imageLiteral(resourceName: "Shop"), buttonIndex: 1, currentPage: 1)

}
</code></pre>

I am working on an app and want to customize the UItabbar icon image.

I have an image with name about.png this image i want to set as left icon image of my app's UItabbar.
how can i do this?

How to change the UItabbar icon image?

我正在开发一个应用程序，想要自定义UItabbar图标图像。我有一个名称为about.png的图像这个图像我想设置为我的应用程序的UItabbar的左图标图像。我该怎么做呢？

问如何更改UItabbar图标图像？
EN

回答 6

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问如何更改UItabbar图标图像？EN

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问如何更改UItabbar图标图像？
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