Question

我使用UINavigationController编码了许多过渡应用。

这是我的过渡形象

“主” - ＆gt; “中第二个” - ＆gt; “中第三” - ＆gt; “中第四”
“秒” - ＆gt; “中A” - ＆gt; “中B”
“秒” - ＆gt; “中C”
“第三” - ＆gt; “中d”
- “Main”是RootViewController。
- 在No2和No3，if (["boo" isEqual:"foo"]){transit "A"} else if ("boo"...){transit "C"}。

我可以将“主要”变为“第四”，第一过渡像这样的

ThirdViewController *thirdView = [[ThirdViewController alloc] init];
[self.navigationController pushViewController:thirdView animated:YES];

但是我不能把“第二”变成“A”和“B” 我想将UIRootViewController设置为“Second” 但“第二”需要通过“A”和“C”。

SecondViewController.m

AViewController *aView = [[AViewController alloc] init];
[self.navigationController pushViewController:aView animated:YES];

我该如何编码？

谢谢！抱歉英语不好请帮帮我！

Answer 1

NSInteger index = 0;
for (UIViewController *view in self.navigationController.viewControllers) {
    if([view.nibName isEqualToString:@"RootViewController"])//put any `XIB name` where u want to navigate 
        break;
    index = index + 1;
}
[[self navigationController] popToViewController:[[self.navigationController viewControllers] objectAtIndex:index] animated:YES];

Answer 2

尝试使用此代码推送到控制器

 DrawImgViewcontroller *ObjImageViewController = [[DrawImgViewcontroller alloc] initWithNibName:@"DrawImgViewcontroller" bundle:nil];
    [self.navigationController  pushViewController:ObjImageViewController  animated:YES];
    [ObjImageViewController release];

并使用下面的代码返回

[self.navigationController popViewControllerAnimated:YES];

并将其用于您喜欢的任何控制器

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:1] animated:NO];//Instead of one you can use the currect index you need

如何使用UINavigationController从一个视图中推送多个视图

2 个答案: