[英]Launching ViewController from AppDelegate
我有一個自定義URL方案,我想打開一個特定的ViewController
,當我轉到這個URL時,它不是根。 我已經能夠做到這一點,剩下的就是從AppDelegate
將這個ViewController
推送到navigationController
,我在這里處理我的URL:
- (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;
}
但它只啟動我的應用程序,而不是我想要啟動的ListingViewController
。 知道我怎么能以不同的方式做到這一點?
要處理從AppDelegate推送和彈出viewControllers,您需要使用[UIApplication sharedApplication]
跟蹤所有viewControllers,從root 1開始。
從AppDelegate 推送 ViewController
ListingViewController *listingVC = [[ListingViewController alloc] init];
[(UINavigationController *)self.window.rootViewController pushViewController:listingVC animated:YES];
彈出您剛才介紹的是視圖控制器,你需要使用這個代碼
[(UINavigationController *)[UIApplication sharedApplication].keyWindow.rootViewController popViewControllerAnimated:YES ];
如果您使用故事板,那么您可以使用以下行來推送您的VC。
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
YOURCLASS *obj=[storyboard instantiateViewControllerWithIdentifier:@"YOUR_CLASS_STORYBOARD_ID"];
[self.window.rootViewController.navigationController pushViewController:obj animated:YES];
更新: -
ListingViewController *listingVC = [[ListingViewController alloc] init];
UINavigationController *navCon = [[UINavigationController alloc] initWithRootViewController:listingVC];
[self.window.rootViewController presentViewController:navCon animated:YES completion:nil];
在didFinishingWithLaunchingOptions中編寫此代碼
SecViewController *Vc = [[UIStoryboard storyboardWithName:@"Main" bundle:nil]instantiateViewControllerWithIdentifier:@"second"];
[(UINavigationController *)self.window.rootViewController pushViewController:Vc animated:YES];
對於Swift 3版本:
let mainStoryboardIpad : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let initialViewControlleripad : UINavigationController = mainStoryboardIpad.instantiateViewController(withIdentifier: "initial") as! UINavigationController
self.window = UIWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = initialViewControlleripad
self.window?.makeKeyAndVisible()
如果你想推送一個UIViewController,你可能忘記用NibName初始化它:
LoginViewController *loginViewController = [[LoginViewController alloc]initWithNibName:@"LoginViewController" bundle:nil];
您的AppDelegate.m應如下所示:
#import "TestViewController.h"
@interface AppDelegate ()
@property (strong, nonatomic) TestViewController *viewController;
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.viewController = [[TestViewController alloc]init];
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.