1.首先，我们看一下UIBbarButtonItem有哪些初始化方法，这也可以看出，它可以被定义为什么东东，然后加到UIToolBar上面去。

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

 

第4种方法就是我们添加各种作料的接口，所以今天的主角其它也是它。

 

2.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];

 

 

 

setItems传入值或者说items是一个对象数组。

 

3.在UIToolBar上面添加image

 

 

[myToolBarItems addObject:[[[UIBarButtonItem alloc]
                                        initWithImage:[UIImage imageNamed:@"myImage.png"]
                                        style:UIBarButtonItemStylePlain
                                        target:self
                                        action:@selector(action)]];

 

 

 

4.在UIToolBar上面添加SystemItem

 

[myToolBarItems addObject:[[[UIBarButtonItem alloc]
                                        initWithBarButtonSystemItem:UIBarButtonSystemItemPlay
                                        target:self
                                        action:@selector(action)] autorelease]];

 

 

 

Note:

initWithBarButtonSystemItem初始化：

- (id)initWithBarButtonSystemItem:(UIBarButtonSystemItem)systemItem target:(id)target action:(SEL)action

Defines system defaults for commonly used items.

 

typedef enum {
    UIBarButtonSystemItemDone,
    UIBarButtonSystemItemCancel,
    UIBarButtonSystemItemEdit,
    UIBarButtonSystemItemSave,
    UIBarButtonSystemItemAdd,
    UIBarButtonSystemItemFlexibleSpace,
    UIBarButtonSystemItemFixedSpace,
    UIBarButtonSystemItemCompose,
    UIBarButtonSystemItemReply,
    UIBarButtonSystemItemAction,
    UIBarButtonSystemItemOrganize,
    UIBarButtonSystemItemBookmarks,
    UIBarButtonSystemItemSearch,
    UIBarButtonSystemItemRefresh,
    UIBarButtonSystemItemStop,
    UIBarButtonSystemItemCamera,
    UIBarButtonSystemItemTrash,
    UIBarButtonSystemItemPlay,
    UIBarButtonSystemItemPause,
    UIBarButtonSystemItemRewind,
    UIBarButtonSystemItemFastForward,
    UIBarButtonSystemItemUndo,        // iPhoneOS 3.0
    UIBarButtonSystemItemRedo,        // iPhoneOS 3.0
} UIBarButtonSystemItem;

 

 

 

 

5.在UIToolBar上面添加其它各种控件,最自由意义，最有意思的，我把它放在最后来讲。我们使用initWithCustomView来完成，

这里需要看一下initWithCustomView的定义：

- (id)initWithCustomView:(UIView *)customView

可以看出，它的参数是一个VIEW，所以我们给它的配料要正确哦才行哦，否则，你就等着时间DIDADIDA的流失吧.

A>加一个开关switch：

 

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

 

 

 

B>加一个按钮UIBarButtonItem

 

UIBarButtonItem *myButton = [[[UIBarButtonItem alloc]
                                 initWithTitle:@"myButton"
                                 style:UIBarButtonItemStyleBordered
                                 target:self
                                 action:@selector(action)]autorelease];
get1Button.width = 50;
[myToolBarItems addObject:myButton];

 

 

C>加一个文本Label

 

UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectMake(40.0f, 20.0f, 45.0f, 10.0f)];
myLabel.font=[UIFont systemFontOfSize:10];
//myLabel.backgroundColor = [UIColor clearColor];
//myLabel.textAlignment=UITextAlignmentCenter;
UIBarButtonItem *myButtonItem = [[UIBarButtonItem alloc]initWithCustomView:myLabel];
[myToolBarItems addObject: myButtonItem];
[mylabel release];
[myButtonItem release];

 

 

 

 

D>加一个进度条UIProgressView

 

 

UIProgressView *myProgress = [[UIProgressView alloc] initWithFrame:CGRectMake(65.0f, 20.0f, 90.0f, 10.0f)];
UIBarButtonItem *myButtonItem = [[UIBarButtonItem alloc]initWithCustomView:myProgress];
[myToolBarItems addObject: myButtonItem];
[myProgress release];
[myButtonItem release];

 

 

可以加使用initWithCustomView制作各种button，这里就不在这里一个一个在加了。我想你应该也已经掌握了如何添加各种buttonItem的方法了。

 

 

(转载请保留此文字：本文来源:[ ] write by Gray.Luo guohui.great@gmail.com)