有问题 about ios-11-uinavigationitem-sxfixspace HOT 2 CLOSED

写在viewWillAppear:中,保证在界面将要显示的时候确保其约束即可
类似demo中的
-(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[self configBarItem];
}

-(void)configBarItem{
if (self.navigationController.viewControllers.count > 0) {
self.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(pushAction) image:[UIImage imageNamed:@"nav_add"]];
}
if (self.navigationController.viewControllers.count > 1) {
self.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(popAction) image:[UIImage imageNamed:@"nav_back"]];
}
}

from ios-11-uinavigationitem-sxfixspace.

我的QQ 78268731 如果需要添加请备注,谢谢

from ios-11-uinavigationitem-sxfixspace.