App crashed when using QBSimpleSyncRefreshControl in tableview pull to refresh - ios

Question

I'm using tabview controller, one of the view controller having table view I use QBSimpleSyncRefreshControl for pull down refresh, its working fine in first time load tab controller,
when I logout my user, I reload my Tab controller (root view controller) that time app crashed unexpectedly.
This is the code I'm using
in tableview controller
QBSimpleSyncRefreshControl *refreshControl = [[QBSimpleSyncRefreshControl alloc] init];
refreshControl.delegate = self;
self.myRefreshControl = refreshControl;
[self.tvTableView addSubview:self.myRefreshControl];
i did in logout
UIStoryboard *board = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
UINavigationController *Tabctrl = [board instantiateViewControllerWithIdentifier:#"vcInitialViewNavId"];
UIWindow *window = AppDelegate.window;
[window addSubview:Tabctrl.view];
window.rootViewController = Tabctrl;
If I block this line
[self.tvTableView addSubview:self.myRefreshControl];
App working fine, If unblock this app crashed when logout (Reload root view controller)
Can anyone help for this.
Full code Here:
view.h File
#interface MyTCView : UIViewController <UICollectionViewDataSource, UICollectionViewDelegate, QBRefreshControlDelegate>
{
// some declaration here
}
#property (weak, nonatomic) IBOutlet UITableView *tvTableView;
#property (nonatomic, strong) QBSimpleSyncRefreshControl *myRefreshControl;
view.m
- (void)viewDidLoad
{
[super viewDidLoad];
FeaturedItemTitle = #"";
HUD = [[MBProgressHUD alloc] initWithView:self.view];
HUD.mode = MBProgressHUDModeIndeterminate;
[self.view addSubview:HUD];
AppDelegate = (TCAppDelegate *) [UIApplication sharedApplication].delegate;
board = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
QBSimpleSyncRefreshControl *refreshControl = [[QBSimpleSyncRefreshControl alloc] init];
refreshControl.delegate = self;
self.myRefreshControl = refreshControl;
[self.tvTableView addSubview:self.myRefreshControl];
}
- (void)refreshControlDidBeginRefreshing:(QBRefreshControl *)refreshControl
{
[self GetDetails];
}
-(void) GetDetails
{
// Calling web service here
NSString *strURL = #"URL HERE";
NSURL *url = [NSURL URLWithString: strURL];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest addValue: #"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[theRequest setHTTPMethod:methodType];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:delegate];
if ( theConnection ) {
//Connection successful
receivedData = [NSMutableData data];
} else {
//Failure
NSLog(#"Error");
}
}
//*** HTTP Connection ***//
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
receivedData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[receivedData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[HUD hide:YES];
[self ShowAlertMessage:ServerErrorMsg Tilte:#""];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSError *error;
NSDictionary *res = [NSJSONSerialization JSONObjectWithData:receivedData options:NSJSONReadingAllowFragments error:&error];
// Array of data get from Res(NSDictionary)
[tvTableView reloadData]; // Tableview Reload
[collView reloadData]; // Collectionview reload
[self.myRefreshControl endRefreshing];
[HUD hide:TRUE];
}

Answer 1

I think this is not the right way to logout a navigationcontroller based application, just use the standard way to load the rootController using
[self.navigationController popToRootViewControllerAnimated:YES];