如何从appDelegate访问我的viewController? iOS版 [英] How do I access my viewController from my appDelegate? iOS
问题描述
我有一个iOS应用程序,我在xCode中创建为基于视图的应用程序。我只有一个viewController,但它会自动显示,我看不到任何将它与我的appDelegate联系起来的代码。我需要将数据从我的appDelegate传递到我的viewController,但不知道如何解决这个问题。
I have an iOS app I created as a "view-based app" in xCode. I have only one viewController, but it is displayed automatically, and I see no code that ties it to my appDelegate. I need to pass data from my appDelegate to my viewController, but don't know how to pull that off.
我的app delegate.h:
My app delegate.h:
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) NSDictionary *queryStrings;
@end
另外,appDidFinishLoadingWithOptions:
Also, appDidFinishLoadingWithOptions:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
[[JMC sharedInstance] configureJiraConnect:@"https://cmsmech.atlassian.net/" projectKey:@"WTUPLOAD" apiKey:@"7fc060e1-a795-4135-89c6-a7e8e64c4b13"];
if ([launchOptions objectForKey:UIApplicationLaunchOptionsURLKey] != nil) {
NSURL *url = [launchOptions objectForKey: UIApplicationLaunchOptionsURLKey];
NSLog(@"url received: %@", url);
NSLog(@"query string: %@", [url query]);
NSLog(@"host: %@", [url host]);
NSLog(@"url path: %@", [url path]);
queryStrings = [self parseQueryString:[url query]];
NSLog(@"query dictionary: %@", queryStrings);
}
else {
queryStrings = [self parseQueryString:@"wtID=nil"];
}
return YES;
}
推荐答案
您可以通过以下方式访问它:
You can access it with:
MyViewController* mainController = (MyViewController*) self.window.rootViewController;
如果您将视图嵌套在tabviewcontroller或导航控制器后面,它将返回给您,您将需要访问其中的视图控制器
If you are nesting your view behind a tabviewcontroller or navigation controller it will return that to you and you will need to access your view controller inside of it
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