I have a view controller that is presented on pressing on one of the tabs in a tabBarController. In this view controller I initialise a UIImagePickerController in the viewDidLoad method:
- (void)viewDidLoad
{
[super viewDidLoad];
//Set imagePicker
//-------------------------//
_imagePicker = [[UIImagePickerController alloc] init];
_imagePicker.delegate = self;
_imagePicker.videoMaximumDuration = 10.0f;
}
The intention is to then display the UIImagePickerController at a later time when a button is pressed. For some reason though when the tab icon is pressed for this view controller, there is a 3-4 second hang while this viewDidLoad method is running. When I comment out the line _imagePicker = [[UIImagePickerController alloc] init] there is no hang time and the view controller loads immediately - as it should.
Does anyone know why allocating and initialising the UIImagePickerController is taking so long? If so, is there a way to speed it up other than running it as a background process? It seems like this is not normal behaviour.
I am using iOS7, and I am not calling viewWillAppear or viewDidAppear.
Try this.
Try this
**presenter is yourViewController / self
Turns out this is only a problem when in debug mode (when the iPhone is connected and running through Xcode). Once the same app is running without being connected to Xcode the lag doesn't occur.