在navigationBar上面添加多个任意控件

(转载请保留此文字：本文来源:[[iphone开发私房菜_1_] 在navigationBar上面添加多个任意控件 http://blog.csdn.net/ipromiseu/archive/2010/12/16/6080474.aspx] write by Gray.Luo guohui.great@gmail.com)

    基本的navigationBar上面就左,中,右 3个位置，而且默认也是添加UIBarButtonItem/UINavigationBar按钮，但是很多开发过程中会遇到在上面添加更多其它控件，经过研究后，所以特写此文，算是做个笔记，也希望能够帮助朋友解决正在解决的这方面的问题。

1.在固定位置添加UIBarButtonItem

UIBarButtonItem *myButton = [[[UIBarButtonItem alloc] initWithTitle:@"myButton" style:UIBarButtonItemStyleBordered target:self action:@selector(action)]autorelease]; self.navigationItem.leftBarButtonItem = myButton; //self.navigationItem.rightBarButtonItem = myButton; //self.navigationItem.backBarButtonItem = myButton; [myButton release]; 

 

  NavigationItem类有以下一些成员：

-title

-titleview

-backBarButtonItem//这是有返回上一级事件的后退按钮

-rightBarButtonItem

-leftBarButtonItem

 

 

2.在任意位置添加一个UIToolbar叠加到navigationBar上，然后设置其背景透明，则可以实现在上这个navigationBar 上面添加多个按钮的效果

UIToolbar *mycustomToolBar; NSMutableArray *mycustomButtons = [[NSMutableArray alloc] init]; UIBarButtonItem *myButton1 = [[[UIBarButtonItem alloc] initWithTitle:@"Get5" style:UIBarButtonItemStyleBordered target:self action:@selector(action)]autorelease]; myButton1.width = 40; [mycustomButtons addObject: myButton1]; UIBarButtonItem *myButton2 = [[[UIBarButtonItem alloc] initWithTitle:@"Play5" style:UIBarButtonItemStyleBordered target:self action:@selector(action)]autorelease]; myButton2.width = 40; [mycustomButtons addObject: myButton2]; mycustomToolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0.0f, 0.0f,320.0f, 44.0f)]; //mycustomToolBar.center = CGPointMake(160.0f,200.0f); mycustomToolBar.barStyle = UIBarStyleDefault; [mycustomToolBar setItems:mycustomButtons animated:YES]; [mycustomToolBar sizeToFit]; [self.view addSubview:mycustomToolBar]; //self.navigationItem.titleView = mycustomToolBar;//与上一句都可实现在上面叠加工具条 //将toolbar的颜色设置为透明，总之使用两个控件叠加完美 [mycustomToolBar release]; [mycustomButtons release]; 

这里是在UIToolbar 上面添加UIBarButtonItem,然而我们很多时候可能会添加其它控件，如：switch,label等等，所以在UIToolbar上面如何添加各种控件，就参考下一篇文章。

3.在任意位置添加UISegmentedControl

UISegmentedControl * mySegment; mySegment = [[UISegmentedControl alloc] initWithFrame:CGRectMake(5.0f, 10.0, 60.0f, 30.0f)]; [mySegment insertSegmentWithTitle:@"mySeg1" atIndex:0 animated:YES]; [get5Segment insertSegmentWithTitle:@"mySeg2" atIndex:1 animated:YES]; mySegment.segmentedControlStyle = UISegmentedControlStyleBar; [mySegment addTarget:self action:@selector(segAction:) forControlEvents:UIControlEventValueChanged]; mySegment.selectedSegmentIndex = -1; [self.navigationController.navigationBar addSubview: mySegment]; [mySegment release];  

如果要在navigationBar实现多个按钮，而且某个功能块的类似按钮需要挨在一起，用segment实现还是很不错，用UIBarButtonItem实现的话，按钮间总是有一个间隔。

4.在任意位置添加UILabel

UILabel* myLabel; myLabel=[[UILabel alloc] initWithFrame:CGRectMake(100.0f, 14.0f, 100.0f, 10.0f)]; myLabel.font=[UIFont systemFontOfSize:10]; myLabel.backgroundColor = [UIColor clearColor]; [self.navigationController.navigationBar addSubview: myLabel]; [myLabel release]; 

5.在任意位置添加UIProgressView 

UIProgressView *myProgress; myProgress =[[UIProgressView alloc] initWithFrame:CGRectMake(80.0f, 28.0f, 150.0f, 8.0f)]; [self.navigationController.navigationBar addSubview: myProgress]; [myProgress release];  

小结：通过上面的方法 ，应该可以抛砖引玉，让你自己添加其他任意控件。还等什么呢？赶快试一下吧，让你的navigationBar条丰富多彩吧！(转载请保留此文字：本文来源:[[iphone开发私房菜_1_] 在navigationBar上面添加多个任意控件 http://blog.csdn.net/ipromiseu/archive/2010/12/16/6080474.aspx] write by Gray.Luo guohui.great@gmail.com)

 

 

 

 

 

 

为UIToolBar工具条添加各种各样的UIBbarButtonItem

博客分类：

• iphone基础开发

 

 

根据SDK的文档，我们可以发现UIBbarButtonItem有如下几种初始化的方法：

-initWithTitle

-initWithImage

-initWithBarButtonSystemItem

-initWithCustomView

1:在UIToolBar上面添加Title

UIToolbar *myToolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 44.0f)];

NSMutableArray *myToolBarItems = [NSMutableArray array];

[myToolBarItems addObject:[[[UIBarButtonItem alloc] initWithTitle:@"myTile" 

    style:UIBarButtonItemStylePlain

    target:self 

    action:@selector(action)] autorelease]];

[myToolBar setItems:myToolBarItems animated:YES];

[myToolBar release];

[myToolBarItems];

2:在UIToolBar上面添加image

[myToolBarItems addObject:[[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"myImage.png"]

                                                    style:UIBarButtonItemStylePlain

            target:self

    action:@selector(action)]];

3:在UIToolBar上面添加SystemItem

[myToolBarItems addObject:[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemPlay

    target:self 

    action:@selector(action)] autorelease]];

SystemItem主要有:

    UIBarButtonSystemItemDone,

    UIBarButtonSystemItemCancel,

    UIBarButtonSystemItemEdit,  

    UIBarButtonSystemItemSave,  

    UIBarButtonSystemItemAdd,

    UIBarButtonSystemItemFlexibleSpace,

    UIBarButtonSystemItemFixedSpace,

    UIBarButtonSystemItemCompose,

    UIBarButtonSystemItemReply,

    UIBarButtonSystemItemAction,

    UIBarButtonSystemItemOrganize,

    UIBarButtonSystemItemBookmarks,

    UIBarButtonSystemItemSearch,

    UIBarButtonSystemItemRefresh,

    UIBarButtonSystemItemStop,

    UIBarButtonSystemItemCamera,

    UIBarButtonSystemItemTrash,

    UIBarButtonSystemItemPlay,

    UIBarButtonSystemItemPause,

    UIBarButtonSystemItemRewind,

    UIBarButtonSystemItemFastForward,

4:使用initWithCustomView

A>加一个开关switch：

[myToolBarItems addObject:[[[UIBarButtonItem alloc] initWithCustomView:[[[UISwitch alloc] init] 

autorelease]];