从AppDelegate启动ViewController [英] Launching ViewController from AppDelegate

问题描述

我有自定义网址方案，我想打开某个 ViewController ，当我转到此网址时，这不是根。我已经能够做到这一点，剩下的就是将 ViewController 从 navigationController > AppDelegate 我在这里处理我的URL：

I have a custom URL scheme and i want to open a certain ViewController which is not the root when i go to this URL. I have been able to do that and what remains is pushing this ViewController into the navigationController from the AppDelegate where i handle my URL like this :

- (BOOL)application:(UIApplication *)application
     openURL:(NSURL *)url
     sourceApplication:(NSString *)sourceApplication
     annotation:(id)annotation {

if ([[url scheme] isEqualToString:@"njoftime"]) {

    NSDictionary *getListingResponse = [[NSDictionary alloc]init];
    getListingResponse = [Utils getListing:[url query]];;

    if ([[getListingResponse objectForKey:@"status"] isEqualToString:@"success"]) {
         ListingViewController *listingView = [[ListingViewController alloc]init];
         [self.window.rootViewController.navigationController pushViewController:listingView animated:YES];
         return YES;
    }

但它只启动我的应用而不是 ListingViewController 我想发布。
任何想法我怎么能以不同的方式做到这一点？

but it only launches my app and not the ListingViewController i want to launch. Any idea how can i do it differently ?

推荐答案

问题

要处理从 AppDelegate 推送和弹出viewControllers，您需要使用 [UIApplication sharedApplication] 来跟踪所有viewControllers ，从根一开始。

Issue

To deal with pushing and popping the viewControllers from AppDelegate, you need to use [UIApplication sharedApplication] which keeps track to all of viewControllers, beginning with root one.

PUSH 来自 AppDelegate的ViewController

ListingViewController *listingVC = [[ListingViewController alloc] init];
[(UINavigationController *)self.window.rootViewController pushViewController:listingVC animated:YES];

要显示的ViewController POP ，您需要使用此代码

To POP that ViewController you just presented, you need to use this code

[(UINavigationController *)[UIApplication sharedApplication].keyWindow.rootViewController popViewControllerAnimated:YES ];

这篇关于从AppDelegate启动ViewController的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！