Cell animation stop fraction must be greater than start fraction

I experienced the same crash when trying to use a dummy footer to remove potential “empty” table view cells. The solution was to get rid of tableView:viewForFooterInSection: tableView:heightForFooterInSection: and replace them with the following, in viewDidLoad : tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];

How Nike+ GPS on iPhone receives accelerometer updates in the background?

For the sake of providing an answer to this question, even though it is already self answered… “If you use the newer Core Motion API, you can receive updates in the background.” Here is an example: – (void)startAccelerationCollection { [self.motionManager startAccelerometerUpdatesToQueue:[[NSOperationQueue alloc] init] withHandler:^(CMAccelerometerData *data, NSError *error) { dispatch_async(dispatch_get_main_queue(), ^{ [self.accelerometerReadings addObject:data]; }); }]; }

How to Change App name in iTunes Connect

After some confusion I managed to change my app name (while it was in status ‘Prepare for Upload’ – not sure if this works for other statuses): Log in to Itunes Connect Click “Manage applications” Click on your app Click “View details” under your current version Click on Edit next to “Metadata and Uploads” And … Read more

Logout from AppStore on iOS Simulator

There is another way to log out from that sandbox account without “Reset Content & Settings” . Just remove the files from the following path in your home directory : ~/Library/Application\ Support/iPhone\ Simulator/5.0/Library/com.apple.itunesstored You may also need to restart the Simulator for the change to take effect. This just removes the stored information about iTunes … Read more

viewController custom init method with storyboard

The designated initializer for view controllers in storyboards is -initWithCoder:. Since most view controllers from a storyboard are created via segues, you usually see state set during -prepareForSegue:sender:. If you’re instantiating a view controller directly from the storyboard like in the example you provided, then the pattern you’ve selected is appropriate.

Can I programmatically clear my app’s notifications from the iOS 5 Notification Center?

To remove notifications from the Notification Center simply set your icon badge number to zero. [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0]; This only works if the number changes, so if your app doesn’t use the badge number you have to first set, then reset it. [[UIApplication sharedApplication] setApplicationIconBadgeNumber:1]; [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];

Xcode compiles my App, but can’t run it in the simulator

The solution for me was to delete everything Xcode has generated earlier: the App on the Simulator…if this is not possible because you cant reach the Homescreen, you can delete the App directly under ~/Library/Application Support/iPhoneSimulator/6.0/Applications delete the Derived Data in the Organizer under Projects or directly in ~/Library/Developer/Xcode/DerivedData clean the Build Folder by choosing … Read more

UIFont fontWithName font name

Might be interesting for you as Quick Win within the Debugger: (lldb) po [UIFont fontNamesForFamilyName:@”Helvetica Neue”] (id) $1 = 0x079d8670 <__NSCFArray 0x79d8670>( HelveticaNeue-Bold, HelveticaNeue-CondensedBlack, HelveticaNeue-Medium, HelveticaNeue, HelveticaNeue-Light, HelveticaNeue-CondensedBold, HelveticaNeue-LightItalic, HelveticaNeue-UltraLightItalic, HelveticaNeue-UltraLight, HelveticaNeue-BoldItalic, HelveticaNeue-Italic ) November 2018 – Update A new swift-y reference for “Custom Fonts with Xcode” – by Chris Ching. I had to update, … Read more