appdelegate

问题 I'm very very new to the target concept in Xcode. I have followed this tutorial to learn to create two targets in the same project. I just want to know how to make target A use AppDelegateA.swift as its designated app delegate, and target B use AppDelegateB.swift as its designated app delegate. Because on the tutorial, it actually teaches how to make two apps from the same AppDelegate. But I make two (almost) completely different apps, that share a lot of resources and libraries. And while we

问题 In the PushKit it is mentioned we can use regular push or VoIP push. But I did not find any documentation for what PKPushType to use for regular push. Did anybody try the regular push using the PushKit? If I don't use VoIP is it possible for a killed app to be launched in the background if it receives push notification? Meaning if app is killed and a notification comes and user does not act on it, can the app be launched by iOS in the background if I use PushKit? 回答1: Since iOS 13.0, this is

问题 I am developing an iPhone app that needs push notification. I followed the instructions for creating the certifications and modifying the app ID. I am not totally sure I did this correctly, but I did follow the directions. Any idea how I can check to see if this is OK? When I ran in the emulator I did get an error message saying that the emulator did not support push notifications. This was somewhat expected. BTW: I have seem this question out there a few times. It always seems to be with a

问题 In my code file MyItemVC.swift I have defined the following class and method: class MyItemVC: UIViewController, UITextViewDelegate { var timer = NSTimer() func cycleTimer(toggleOn: Bool) { if toggleOn == true { // Timer calls the replaceItem method every 3 seconds timer = NSTimer.scheduledTimerWithTimeInterval(3, target: self, selector: Selector("replaceItem"), userInfo: nil, repeats: true) } else { timer.invalidate() // stop the timer } } } Elsewhere in this class, I call cycleTimer(true) to

问题 I'm calling a method from viewcontroller in an appdelegate. When I was testing functionality I just used NSLog message which works fine (so the connection between viewcontroller and appdelegate is OK). The problem appears once I add a email form into this method. The message I receive is: Warning: Attempt to present <MFMailComposeViewController: 0x1fdc3990> on <ViewController: 0x1fd9e3b0> whose view is not in the window hierarchy! Anyone who know what to do? I know there are lot of topics

问题 I have successfully integrated Firebase dynamic links and when I click on dynamic link then my app is opening. The issues I'm facing is after opening app from dynamic links, continue userActivity: method should be called, but nothing happens. I've checked the all the possible thing but didn't recognised the issue. I've searched the SO for this but none of the answer helped me. My Code: func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions:

问题 I am new in OSX developing and i am new in Swift. I want to write simple app with WebView. I can load url, but I need to catch event when, WebView end loading content. it's my app delegate.swift file: import WebKit class AppDelegate: NSObject, NSApplicationDelegate{ @IBOutlet weak var window: NSWindow! @IBOutlet var webview: WebView! func applicationDidFinishLaunching(aNotification: NSNotification?) { let url = NSURL(string: "google.com") let request = NSURLRequest(URL: url); webview

问题 Our app explicitly blocks user form using remote-control, e.g., old springboard from pre-iOS7, earbud, by becoming the first responder to the remote-control events. However, on iOS7, the same code fails to bypass the control centre music controls. From out tests, control centre seems to have bypassed ALL music control events including UIEventSubtypeRemoteControlPause and UIEventSubtypeRemoteControlPlay, and UIEventSubtypeRemoteControlTogglePlayPause. Is it that control centre has its own

问题 I'm having a hard time wrapping my head around using completionHandler inside performFetchWithCompletionHandler in the AppDelegate . My App does some background fetching, and during the fetch I would like to invoke a function that is located in one of my viewControllers What is the correct way to use the completionHandler , I'm aware that it is an asynchronous task. I managed to make it work when I wanted to send data to my database, but I'm unable to make it work when I want to invoke a

问题 I'm using Safari to browse a webpage. After I click a button on this page, my Ipad will launch my app. So I implement the method - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url in the AppDelegate.m . - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url{ if (!url) { return NO; } NSString *URLString = [url absoluteString]; self.paramArray = [URLString componentsSeparatedByString:@"@"]; NSLog(@"%d",[self.paramArray count]); for (int i = 1; i <