您会看到我正在制作一个完全自定义的导航栏,当我创建后退按钮时,它不会停留在正确的位置,正如您在代码下方看到的那样。
这是我的应用程序代码
- (void)viewDidLoad
{
[super viewDidLoad];
if(self.navigationController.viewControllers.count > 1) {
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setTitle:@"" forState:UIControlStateNormal];
[backButton setBackgroundImage:[UIImage imageNamed:@"backButton.png"] forState:UIControlStateNormal];
[backButton addTarget:self action:@selector(didTapBackButton:) forControlEvents:UIControlEventTouchUpInside];
backButton.frame = CGRectMake(0.0f, 0.0f, 44.0f, 45.0f);
UIBarButtonItem *backButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = backButtonItem;
}
}