UINavigationController

• navigationBar和toolBar是归属于navigationController的，但是上面的item是每个控制器自己的。

1.    self.title = @"设置";
2.
3.    self.navigationController.toolbarHidden = YES;
4.
5.    UIBarButtonItem *rightItem = [[UIBarButtonItem alloc] initWithTitle:@"添加"
6.                                                                 style:UIBarButtonItemStylePlain
7.                                                                 target:self
8.                                                                 action:@selector(newContact:)];
9.//    self.navigationController.navigationBar
10.    self.navigationItem.rightBarButtonItem = rightItem;
11.    //在最上面居中显示的东东....
12.    self.navigationItem.prompt = @"acfun";
13.    self.navigationItem.title = @"bilibili";
14.
15.    UIBarButtonItem *leftItem = [[UIBarButtonItem alloc] initWithTitle:@"编辑"
16.                                                         style:UIBarButtonItemStylePlain
17.                                                         target:self
18.                                                         action:@selector(EditContact:)];
19.
20.    self.navigationItem.leftBarButtonItem = leftItem;

1.
2.    // leftBarButtonItems
3.    UIBarButtonItem *home0 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCompose
4.        target:self
5.        action:@selector(doSomeThing)];
6.    UIBarButtonItem *home1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera
7.        target:self
8.        action:@selector(doSomeThing)];
9.
10.    self.navigationItem.leftBarButtonItems = @[home0,home1];
11.
12.
13.    // rightBarButtonItems
14.    UIBarButtonItem *add0 = [[UIBarButtonItem alloc] initWithTitle:@"0"
15.                                                    style:UIBarButtonItemStylePlain
16.                                                    target:self
17.                                                    action:@selector(doSomeThing)];
18.    UIBarButtonItem *add1 = [[UIBarButtonItem alloc] initWithTitle:@"1"
19.                                                            style:UIBarButtonItemStylePlain
20.                                                           target:self
21.                                                           action:@selector(doSomeThing)];
22.
23.    self.navigationItem.rightBarButtonItems = @[add0,add1];
24.
25.    UISegmentedControl *segment = [[UISegmentedControl alloc] initWithFrame:CGRectMake(0, 0, 100, 40)];
26.    NSArray *array = @[@"摸摸大",@"么么哒",@"哒哒哒",@"啪啪啪"];
27.    for (int i = 0; i < 4; i++) {
28.        [segment insertSegmentWithTitle:array[i] atIndex:i animated:YES];
29.
30.    }
31.
32.    // titileView
33.    self.navigationItem.titleView = segment;
34.

1.    self.title = @"Root";
2.        // 导航条背景色,也可以设置背景图片
3.    self.navigationController.navigationBar.barTintColor = [UIColor orangeColor];
4.    UIBarButtonItem *right = [[UIBarButtonItem alloc]
5.                              initWithTitle:@"next"
6.                              style:UIBarButtonItemStylePlain
7.                              target:self
8.                              action:@selector(nextController:)];
9.
10.    self.navigationItem.rightBarButtonItem = right;
11.
12.    //下一个Controller若添加了leftBarButtonItem 则下面设置无用
13.    self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"oo" style:UIBarButtonItemStylePlain target:nil action:nil];
14.    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeBackgroundColor:) name:@"color" object:nil];
15.
16.    // 工具条 toolBar位于屏幕底部
17.    self.navigationController.toolbarHidden = NO;
18.
19.    [self.navigationController.toolbar setBackgroundImage:[UIImage imageNamed:@"toolBar.png"] forToolbarPosition:UIBarPositionBottom barMetrics:UIBarMetricsDefault];
20.
21.    UIBarButtonItem *camera = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera target:nil action:nil];
22.    UIBarButtonItem *search = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:nil action:nil];
23.    UIBarButtonItem *bookMark = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:nil action:nil];
24.
25.    UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
26.
27.    [self setToolbarItems:@[camera,flexibleSpace,search,flexibleSpace,bookMark]];

1.    self.title = @"Second";
2.
3.    //覆盖掉上一个Controller的backBarButtonItem(若果放在leftBarButtonItem)
4.    UIBarButtonItem *one = [[UIBarButtonItem alloc] initWithTitle:@"xx" style:UIBarButtonItemStylePlain target:nil action:nil];
5.
6.    UIBarButtonItem *two = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:nil action:nil];
7.
8.    //可以重用
9.    UIBarButtonItem *three = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
10.
11.    self.navigationItem.rightBarButtonItems = @[one,three,two,three];