I would alert the user when the connection with a web server is lost. I t开发者_JAVA百科hink the Apple Reachability class could solve my problem, but I would build for ios < 4.
I want to add a view controller as observer of a notification. When the selector method is called, I\'ll alert the user. I would that this alert ap开发者_JAVA技巧pears only when this view controller
My question is in regards the object that gets added to a -postNotificationName:object: userInfo: method.
I have an tab bar app and the 2 tabs use the same class (different instances) to show a UITableView. Based on which tab is clicked a few minor changes are made to the appearance, functionality etc. Th
I\'m trying to write a method that will operate like this: NSString *responseData = [myAwesomeWrapper getStringfromURL:@\"http://spam.com\"];
I need to pass some da开发者_运维技巧ta to a method which I am registering to execute once I receive a notification
I am developing a Des开发者_Python百科ktop application that lists the webcams connected to the system. When the user selects the web-cam app streams from the device to the QTCaptureView.
I have implemented Apple\'s Reachability 2.2 class in a new iOS 4.2 project. I simply want an alert view to appear when the device loses network connectivity. ( And thence comply with the interface us
I set up a notification observer in my view controller\'s init method like so: [[NSNotificationCenter defaultCenter]
I want to know how long does it take from posting a notification to getting the notification. The reason is that I want to find out if the observer pattern is suitable for me. I don\'t want that anot
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