UIToolBar 上面添加任意控件

转自:http://blog.csdn.net/light_jewel/article/details/7768045

一.  在UIToolBar 上添加任意多个不同或相同的控件

1. 在UIToolBar 上添加相同的控件

     self.navigationController.navigationBar.barStyle = UIBarStyleBlackOpaque ;

     //设置工具栏的背景颜色

     NSMutableArray *buttons = [[NSMutableArray alloc]initWithCapacity:4];

     //设置添加按钮的数量

     UIBarButtonItem *flexibleSpaceItem;
     flexibleSpaceItem =[[[UIBarButtonItem alloc]
                          initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
                          target:self
                          action:NULL]autorelease];
     [buttons addObject:flexibleSpaceItem];

 //UIBarButtonSystemItemFixedSpace和UIBarButtonSystemItemFlexibleSpace都是系统提供的用于占位的按钮样式。
 //使按钮与按钮之间有间距

     UIBarButtonItem *Item;
     Item = [[UIBarButtonItem alloc]
             initWithImage:[UIImage imageNamed:@"down.png"]
             style:UIBarButtonItemStylePlain
             target:self
             action:@selector(decrement:)];
     [buttons addObject:Item];

     //添加第一个图标按钮

     Item = [[UIBarButtonItem alloc]
              initWithImage:[UIImage imageNamed:@"up.png"]
             style:UIBarButtonItemStylePlain
             target:self
             action:@selector(increment:)];
     [buttons addObject:Item];

     //添加第二个图标按钮

     flexibleSpaceItem = [[[UIBarButtonItem alloc]
                           initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
                           target:self
                           action:NULL]autorelease];
     [buttons addObject:flexibleSpaceItem];

     UIToolbar *toolBar = [[UIToolbar alloc]init];
     toolBar.barStyle = UIBarStyleBlackOpaque ;
     [toolBar setItems:buttons animated:YES];
     [toolBar sizeToFit];
     self.navigationItem.titleView = toolBar ;

     //将这些按钮添加到toolbar上面去

2.在UIToolBar 上添加 UILabel

 UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectMake(40.0f, 20.0f, 45.0f, 10.0f)];
 myLabel.font=[UIFont systemFontOfSize:10];
 myLabel.backgroundColor = [UIColor whiteColor];
 myLabel.textAlignment=UITextAlignmentCenter;
 myLabel.text  = @"aa";
 UIBarButtonItem *myButtonItem = [[UIBarButtonItem alloc]initWithCustomView:myLabel];
 [buttons addObject: myButtonItem];     //添加文本

3.在UIToolBar 上添加 滑动条 UIProgressView

     UIProgressView *myProgress = [[UIProgressView alloc] initWithFrame:
                                   CGRectMake(65.0f, 20.0f, 90.0f, 10.0f)];

     UIBarButtonItem *myButton = [[UIBarButtonItem alloc]initWithCustomView:myProgress];

     [buttons addObject: myButton];       //添加滑动条

4.在UIToolBar上添加UISegmentedControl UISegmentedControl的作用是可以让有相同功能的按钮紧凑的排列在一起

 NSArray *buttonNames = [NSArray arrayWithObjects:@"One", @"Two", @"Three", @"Four", nil];

 UISegmentedControl* segmentedControl = [[UISegmentedControl alloc] initWithItems:buttonNames];

 segmentedControl.momentary = YES;

 //如果它被设置为YES,选定时亮 点击过后不亮  如果注释掉选中的项一直被显示高亮

 [(UITextView *)self.view setText:@""];

 segmentedControl.autoresizingMask = UIViewAutoresizingFlexibleWidth;//若出界的话则自动扩展其宽度

 segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;

 segmentedControl.frame = CGRectMake(0, 0, 400, 30);

 [segmentedControl addTarget:self action:@selector(segmentAction:)

                        forControlEvents:UIControlEventValueChanged];

 //self.navigationItem.titleView = segmentedControl;

 [self.navigationController.navigationBar addSubview: segmentedControl]; //与上面一句话同样的效果

 -(void) segmentAction: (id) sender
 {
     switch([sender selectedSegmentIndex] + 1)
     {
         case 1: [(UITextView *) self.view setText:@"\n\nOne"]; break;

         case 2: [(UITextView *) self.view setText:@"\n\nTwo"]; break;

         case 3: [(UITextView *) self.view setText:@"\n\nThree"]; break;

         case 4: [(UITextView *) self.view setText:@"\n\nFour"]; break;

         default: break;
     }
 }

5.在UIToolBar上添加 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];

6. 在UIToolBar上添加image

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

7. 在UIToolBar上添加SystemItem

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