iOS navigationbar添加实现
#ViewController.m
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
UIViewController *rootView = [[UIViewController alloc] init];
rootView.title = @"Root View";
self.navController = [[UINavigationController alloc] init];
[self.navController pushViewController:rootView animated:YES];
[self.view addSubview:self.navController.view];
self.navigationController.navigationBarHidden = YES;
UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(selectLeftAction:)];
leftButton.title = @"123";
rootView.navigationItem.leftBarButtonItem = leftButton;
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(selectRightAction:)];
rootView.navigationItem.rightBarButtonItem = rightButton;
}
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