枫岭晚

self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:img   style:UIBarButtonItemStylePlain  target:self  action:@selector(onBack:)];self.navigationController.interactiveP

navigationController.hidesBarsOnSwipe = Yes

在viewWillDisappear方法中判断是否进行了返回操作。- (void)viewWillDisappear:(BOOL)animated{    [super viewWillDisappear:animated];    if (![[self.navigationController viewControllers] containsObject:self])

[[UIBarButtonItem appearance] setBackButtonTitlePositionAdjustment:UIOffsetMake(0, -60) forBarMetrics:UIBarMetricsDefault];

按照一般的方法创建导航栏的左右按钮时，会出现按钮向里偏的现象，但有时想让按钮往屏幕边靠怎么办呢？1.首先先创建按钮 UIButton *button = [[UIButton alloc] init]; [button setBackgroundImage:[UIImage imageNamed:imageName] forState:UIControlState

iOS设置navigationBar背景透明 [self.navigationController setNavigationBarHidden:NO]; [self.navigationController.navigationBar setTranslucent:YES]; [self.navigationController.navigationBar setBac