Question

iOS开发中的 presentViewController 页面切换

TypeChartViewController *TypesViewCon=[[self storyboard]instantiateViewControllerWithIdentifier:@"TypesViewController"];
[[self navigationController] presentViewController:TypesViewCon animated:YES completion:nil];
从底部弹出的页面是空白的：

可是我在弹出页面里添加了
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(close:)];
为什么在弹出页面显示不出来呢？我该怎么设置才能显示呢

Answer 1

TypeChartViewController *TypesViewCon=[[self storyboard]instantiateViewControllerWithIdentifier:@"TypesViewController"];
UINavigationController *nav=[[UINavigationController alloc] initWithRootViewController:TypesViewCon]; 
[self  presentViewController:nav animated:YES completion:nil];

Answer 2

就是这个的情况的啊，如果在的话，你就不是这个样子的。

追问

我是想第二个页面左上角可以显示“返回”按钮，怎么写呢？

追答

at that time yo

u is she full of h
appiness an
d expectation.