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]];
