隐藏View的导航栏按下View是OK.but pop可以看到黑条

Question

SDK 6.1，目标6.1，使用故事板

aView有一个UIButton。我使用action segue [push]到bView

点击此按钮后，按bView即可

但我弹出aView有一个背栏，我该如何解决这个问题？

aView.m

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [self.navigationController.navigationBar setHidden:YES];
}

bView.m

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [self.navigationController.navigationBar setHidden:NO];
}

Answer 1

我得到了你的问题。您正在使用viewWillAppear: viewA方法隐藏导航栏，而您没有动画。

试试这个

// This will add an animation like slide out. So you may won't like it.
[self.navigationController setNavigationBarHidden:YES animated:YES];

如果它不起作用，请在bView.m

中添加此代码

- (void)viewWillDisappear:(BOOL)animated {
[self.navigationController setNavigationBarHidden:YES animated:NO];
[super viewWillDisappear:animated]
}