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Delete keychain items when an app is uninstalled

...ou can take advantage of the fact that NSUserDefaults are cleared by uninstallation of an app. For example: - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { //Clear keychain on first run in case of reinstallation if (![[NSUserDef...
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ERROR ITMS-9000: “Redundant Binary Upload. There already exists a binary upload with build version '

...s version 3.75 and a build 1 has already been submitted, then next build shall be 2 or higher, but the version can still remain 3.75. New updated and the recommended way of having the build numbers serial: The older image to match the one below: After a new binary is uploaded and processed (~5-...
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How to write a scalable Tcp/Ip based server

...he best bet, using the Asynchronous sockets. This meant that clients not really doing anything actually required relatively little resources. Anything that does occur is handled by the .net thread pool. I wrote it as a class that manages all connections for the servers. I simply used a list to ho...
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How do I make a splash screen?

... of wait **/ private final int SPLASH_DISPLAY_LENGTH = 1000; /** Called when the activity is first created. */ @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.splashscreen); /* New Handler to start the Menu-Act...
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How to recover a dropped stash in Git?

... review yesterday's stashed changes, but git stash pop appears to remove all references to the associated commit. 19 Answ...
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How to install Google Play Services in a Genymotion VM (with no drag and drop support)?

How can I install Google Play Services in a Genymotion emulator with no drag and drop support? 17 Answers ...
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Why do access tokens expire?

... This is very much implementation specific, but the general idea is to allow providers to issue short term access tokens with long term refresh tokens. Why? Many providers support bearer tokens which are very weak security-wise. By making them short-lived and requiring refresh, they limit the ...
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How do I use pagination with Django class based generic ListViews?

...el = models.Car # shorthand for setting queryset = models.Car.objects.all() template_name = 'app/car_list.html' # optional (the default is app_name/modelNameInLowerCase_list.html; which will look into your templates folder for that path and file) context_object_name = "car_list" #de...
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Simulator error FBSSystemServiceDomain code 4

...g contents and settings does not help the situation. Just retry and eventually you'll win the race condition. This issue is discussed in the Apple Developer Forums and Xcode Release Notes. – Jeremy Huddleston Sequoia Nov 15 '14 at 20:07 ...
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Xcode 4 says “finished running ” on the targeted device — Nothing happens

The app neither installs nor runs on my device. All provisioning profiles are up to date. I've already tried deleting and re-installing them. ...