iteye_9269的博客

今天在做开发的时候，忽然发现在视图的viewWillAppear:方法中添加: [self.tableView reloadData];  不起作用，viewWillAppear:这个方法根本没有调用 后来发现原来用了UINavigationController后，viewWillAppear方法是没有效果的，要用UINavigationControllerDelegate的– nav...

UIImage *image = [UIImage imageNamed:@"历史标题.png"];UIImageView *imageView = [[UIImageView alloc] initWithImage:image];[self.navigationController.navigationBar addSubview:ImageView];  

//navigationBar通常只有左、右两个按钮，但可以//通过添加UISegmentedControl来增加控制按钮UINavigationBar* _navBar;UISegmentedControl* _SegCtl; _navBar = [[UINavigationBar alloc] initWithFrame: CGRectMake(0.0f, 0.0f, 3...

NavigationBar.topItem.title = @"";NavigationBar.topItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:self action:@selector(BtnPressed:)]...

UIButton *BackBtn = [[UIButton alloc] initWithFrame:CGRectMake(0.0, 100.0, 62.0, 29.0)]; [BackBtn setImage:[UIImage imageNamed:@"BackBtn.png"] forState:UIControlStateNormal]; [BackBtn addTarget:s...