Multiple UITableView with independent dataSource - ios

[EDIT]
Ok I found the problem, I was just calling the bad connection request of my web service. So downloading a blog would erase the articles list content. Time for a break :p
#
I'm upgrading an old app which is a simple RSS reader with a list of articles and a list of blogs. Each of these is a UITableView with its own UITableViewController.
Both of them retrieve data from a JSON file on my server.
At the end of the JSON parsing I update the dataSources and then call the reloadData method on both tableviews. The problem is that the articles list is filled with the blogs and the blog list isn't filled at all.
If I don't call reloadData on the blog tableview, the article one is filled correctly and works well. As seen on an other post I've tried with the tableview.tag identifier but it doesn't work.
Note: I'm not using IB.
Here is the code for the BlogTableViewController:
#implementation BlogsTVC
#synthesize dataSourceForBlogs;
#synthesize blogRec;
- (id)initWithStyle:(UITableViewStyle)style
{
if ((self = [super initWithStyle:style])) {
self.title = #"Blogs";
self.tableView.tag = 2;
self.tableView.delegate = self;
dataSourceForBlogs = [[NSMutableArray alloc] init];
// Register to notification
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(callback_blogs:) name:#"blogs" object:nil ];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(connection_error:) name:#"connection_error" object:nil];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self refreshBlogs];
}
-(void)callback_blogs:(NSNotification *)notification
{
if([self.dataSourceForBlogs count] > 0)
{
NSInteger i, count = [self.dataSourceForBlogs count];
for(i=0; i < count; i++)
{
[[self.dataSourceForBlogs objectAtIndex:i] release];
}
[self.dataSourceForBlogs removeAllObjects];
}
//remplissage
NSArray *receivedDatas = [[notification userInfo] objectForKey:#"data"];
NSUInteger i, count = [receivedDatas count];
for(i=0; i<count; i++)
{
self.blogRec = [[BlogRecord alloc] init];
self.blogRec.blog_id_auteur = [[receivedDatas objectAtIndex:i] objectForKey:#"id"];
self.blogRec.blog_auteur = [[receivedDatas objectAtIndex:i]objectForKey:#"auteur"];
self.blogRec.blog_url = [[receivedDatas objectAtIndex:i]objectForKey:#"url"];
self.blogRec.blog_date = [[receivedDatas objectAtIndex:i] objectForKey:#"date"];
self.blogRec.blog_nb_pub = [[receivedDatas objectAtIndex:i] objectForKey:#"nb_publication"];
self.blogRec.blog_url_image = [[receivedDatas objectAtIndex:i] objectForKey:#"theme"];
[self.dataSourceForBlogs addObject:self.blogRec];
self.blogRec = nil;
}
[self.tableView reloadData];
}
Here is the code for the Articles:
#implementation ActualiteTVC
#synthesize dataSource;
#synthesize artRec;
#pragma mark -
#pragma mark Initialization
- (id)initWithStyle:(UITableViewStyle)style {
// Override initWithStyle: if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
if ((self = [super initWithStyle:style])) {
// Titles
self.title = #"Actualités";
self.tableView.tag = 1;
// Register to notification
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(callback_general:) name:#"general" object:nil ];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(connection_error:) name:#"connection_error" object:nil];
self.dataSource = [[NSMutableArray alloc] init];
}
return self;
}
#pragma mark -
#pragma mark View lifecycle
- (void)viewDidLoad {
[super viewDidLoad];
[self refreshNews];
}
-(void)callback_general: (NSNotification *) notification
{
if ([self.dataSource count] > 0) {
NSUInteger i, count = [self.dataSource count];
for (i = 0; i < count; i++) {
[[self.dataSource objectAtIndex:i] release];
}
[self.dataSource removeAllObjects];
}
NSArray *receivedDatas = [[notification userInfo] objectForKey:#"data"];
NSUInteger i, count = [receivedDatas count];
for (i = 0; i < count; i++) {
self.artRec = [[ArticleRecord alloc] init];
self.artRec.art_id = [[receivedDatas objectAtIndex:i] objectForKey:#"id"];
self.artRec.art_auteur = [[receivedDatas objectAtIndex:i] objectForKey:#"auteur"];
self.artRec.art_categorie = [[receivedDatas objectAtIndex:i] objectForKey:#"categorie"];
self.artRec.art_date = [[receivedDatas objectAtIndex:i] objectForKey:#"date"];
//self.artRec.art_texte = [[receivedDatas objectAtIndex:i] objectForKey:#"texte"];
self.artRec.art_titre = [[receivedDatas objectAtIndex:i] objectForKey:#"titre"];
self.artRec.art_url_auteur = [[receivedDatas objectAtIndex:i] objectForKey:#"url_auteur"];
self.artRec.art_url = [[receivedDatas objectAtIndex:i] objectForKey:#"url"];
self.artRec.art_url_img = [[receivedDatas objectAtIndex:i] objectForKey:#"image"];
[self.dataSource addObject:self.artRec];
self.artRec = nil;
}
[self.tableView reloadData];
}
Finally here is how I add these TableViews in the TabBar:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// 0
//articles
ActualiteTVC *actualiteTVC = [[ActualiteTVC alloc] init];
UINavigationController *actualiteNC = [[UINavigationController alloc] initWithRootViewController:actualiteTVC];
[actualiteTVC release];
actualiteNC.tabBarItem.title = #"Actualités";
actualiteNC.tabBarItem.image = [UIImage imageNamed:#"08-chat.png"];
[actualiteNC.navigationBar setBarStyle:UIBarStyleBlack];
//1
//blogs
BlogsTVC *blogsTVC = [[BlogsTVC alloc] init];
UINavigationController *blogsNC = [[UINavigationController alloc] initWithRootViewController:blogsTVC];
[blogsTVC release];
blogsNC.tabBarItem.title = #"Blogs";
blogsNC.tabBarItem.image = [UIImage imageNamed:#"balance.png"];
[blogsNC.navigationBar setBarStyle:UIBarStyleBlack];
// myTabBarController
myTabBarController = [[UITabBarController alloc] init];
[myTabBarController setViewControllers:[NSArray arrayWithObjects:actualiteNC, blogsNC, nil]];
[actualiteNC release];
[blogsNC release];
/*
//fullscreen
CGRect frame = [[UIScreen mainScreen] applicationFrame];
frame.origin.x = 0;
frame.origin.y = 25;
//[baseViewCtrl.view setFrame:frame];
[myTabBarController.view setFrame:frame];
*/
/*
// window
//[window addSubview:myTabBarController.view];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(handleRemoveLoading:) name:#"removeLoading" object:nil];
loading = [[LoadingVC alloc] init];
[window addSubview:loading.view];
*/
[window addSubview:baseViewCtrl.view];
[window makeKeyAndVisible];
return YES;
}

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//DEZE BLIJFT HELAAS IN HET GEHEUGEN HANGEN... GEEN OPLOSSING GEVONDEN
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_center = (GCenter*)[_centers objectAtIndex:row];
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{
if (_mapView != nil)
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[_mapView removeAnnotation:_point];
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[_cityLine removeFromSuperview];
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_cityLine = nil;
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_adresLine.textColor = [GColor greyColor];
_adresLine.text = _center.street;
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_cityLine.textAlignment = NSTextAlignmentCenter;
_cityLine.textColor = [GColor greyColor];
_cityLine.font = [_cityLine.font fontWithSize:14];
_cityLine.text = _center.city;
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[self.view addSubview:_cityLine];
if(_mapView == nil)
{
double height;
height = _btnGaVerder.frame.origin.y - _cityLine.frame.origin.y - _cityLine.frame.size.height;
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[self.view addSubview:_mapView];
}
CLLocationCoordinate2D punt;
punt.latitude = _center.latitude;
punt.longitude = _center.longitude;
_point = [[MKPointAnnotation alloc] init];
[_point setCoordinate:punt];
_mapView.centerCoordinate = punt;
_point.title = _center.name;
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[_mapView setCenterCoordinate:punt animated:YES];
MKCoordinateRegion theRegion = _mapView.region;
theRegion.span.longitudeDelta = 0.005;
theRegion.span.latitudeDelta = 0.005;
[_mapView setRegion:theRegion animated:YES];
}
#end
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The view controller is being strongly referenced by some outside object;
The view controller is a strong delegate referenced by some object defined within the view controller itself
The dismissViewControllerAnimated:completion: block may reference to self or it has some other code block that may cause a circular references
The view controller has NSTimer objects which can invoke some methods which re-schedules the timer
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If your view controller is not deallocated after it is dismissed, there's probably a strong reference to that view controller somewhere in your code. ARC will always deallocate objects that doesn't have strong reference anymore.

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-(void)customInitialization;
#end
#implementation Itineraire(Private)
-(void)customInitialization
{
// do the initialization of class variables here..
mDirections = [UICGDirections sharedDirections];
mDirections.delegate = self;
}
#end
#implementation Itineraire
#synthesize map = mMap;
#synthesize startPoint = mStartPoint;
#synthesize endPoint = mEndPoint;
#synthesize loadBtn = mLoadBtn;
#synthesize annotationArray = mAnnotationArray;
#synthesize travelMode = mTravelMode;
#synthesize destination;
#synthesize routes;
#synthesize mAnnotations;
#synthesize mRouteArray;
#synthesize mRouteDetail;
//Invoked when the class is instantiated in XIB
-(id)initWithCoder:(NSCoder*)aDecoder
{
self = [super initWithCoder:aDecoder];
if( self)
{
[self customInitialization];
}
return self;
}
// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
[self customInitialization];
}
return self;
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
self.title = #"Google Maps";
self.map = [[SBMapView alloc] initWithFrame:CGRectMake(0, 49, self.view.frame.size.width, self.view.frame.size.height)];
//self.map = [[SBMapView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 381)];
[self.view addSubview:mMap];
self.view.backgroundColor = [UIColor blackColor];
self.annotationArray = [[NSMutableArray alloc]init];
self.routes = [[UICGRoutes alloc]init];
if (mDirections.isInitialized) {
[self updateRoute];
}
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
[super viewDidUnload];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:YES];
}
- (void)viewWillDisappear:(BOOL)animated;
{
[super viewWillDisappear:YES];
}
#pragma mark -
#pragma mark Instance Methods
- (void)updateRoute
{ /*
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
UICGDirectionsOptions *options = [[[UICGDirectionsOptions alloc] init] autorelease];
options.travelMode = mTravelMode;
City *mFirstCity = [[[City alloc]init] autorelease];
mFirstCity.mCityName = #"Paris";//mStartPoint;
//[mDirections loadWithStartPoint:mFirstCity.mCityName endPoint:destination options:options];
//added
NSMutableArray * DestinationCityArray = [[NSMutableArray alloc]init];
[DestinationCityArray addObject:#"Berlin"];
[mDirections loadWithStartPoint:mFirstCity.mCityName endPoint:destination options:options];
*/
//
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
UICGDirectionsOptions *options = [[UICGDirectionsOptions alloc] init] ;
options.travelMode = mTravelMode;
City *mFirstCity = [[City alloc]init];
mFirstCity.mCityName = #"Amsterdam";//mStartPoint;
NSMutableArray *dest=[[NSMutableArray alloc]init];
[dest addObject:#"Berlin"];
[mDirections loadWithStartPoint:mFirstCity.mCityName endPoint:dest options:options];
}
-(void)loadRouteAnnotations
{
self.mRouteArray = [mDirections routeArray];
NSLog(#"mRouteArray %#",mRouteArray);
self.mAnnotations = [[NSMutableArray alloc]init];
for (int idx = 0; idx < [mRouteArray count]; idx++) {
NSArray *_routeWayPoints1 = [[mRouteArray objectAtIndex:idx] wayPoints];
NSArray *mPlacetitles = [[mRouteArray objectAtIndex:idx] mPlaceTitle];
self.annotationArray = [NSMutableArray arrayWithCapacity:[_routeWayPoints1 count]-2];
mLoadBtn.title = #"OFF";
mLoadBtn.target = self;
mLoadBtn.action = #selector(removeRouteAnnotations);
for(int idx = 0; idx < [_routeWayPoints1 count]-1; idx++)
{
mBetweenAnnotation = [[SBRouteAnnotation alloc] initWithCoordinate:[[_routeWayPoints1 objectAtIndex:idx]coordinate]
title:[mPlacetitles objectAtIndex:idx]
annotationType:SBRouteAnnotationTypeWayPoint];
[self.annotationArray addObject:mBetweenAnnotation];
}
[mAnnotations addObject:mAnnotationArray];
[self.map.mapView addAnnotations:[mAnnotations objectAtIndex:idx]];
NSLog(#"map %#",mMap);
}
}
-(void)showCheckpoints
{
SBCheckPointViewController *_Controller = [[SBCheckPointViewController alloc]initWithNibName:#"SBCheckPoints" bundle:nil];
[self.navigationController pushViewController:_Controller animated:YES];
NSMutableArray *arr = [[mDirections checkPoint] mPlaceTitle];
_Controller.mCheckPoints = arr ;
}
//
-(void)removeRouteAnnotations
{
NSMutableArray *mTempAnnotation;// = [mAnnotations retain];
for (int idx = 0; idx < [mTempAnnotation count]; idx++) {
[mMap.mapView removeAnnotations:[mTempAnnotation objectAtIndex:idx] ];
}
mLoadBtn.title = #"ON";
mLoadBtn.target = self;
mLoadBtn.action = #selector(loadRouteAnnotations);
}
#pragma mark <UICGDirectionsDelegate> Methods
- (void)directionsDidFinishInitialize:(UICGDirections *)directions {
[self updateRoute];
}
- (void)directions:(UICGDirections *)directions didFailInitializeWithError:(NSError *)error {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Map Directions" message:[error localizedFailureReason] delegate:nil cancelButtonTitle:nil otherButtonTitles:#"OK", nil];
[alertView show];
}
- (void)directionsDidUpdateDirections:(UICGDirections *)indirections {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
UICGPolyline *polyline = [indirections polyline];
NSArray *routePoints = [polyline routePoints];
[mMap loadRoutes:routePoints]; // Loads route by getting the array of all coordinates in the route.
UIToolbar *tools = [[UIToolbar alloc]
initWithFrame:CGRectMake(0.0f, 0.0f, 103.0f, 44.01f)]; // 44.01 shifts it up 1px for some reason
tools.clearsContextBeforeDrawing = NO;
tools.clipsToBounds = NO;
tools.tintColor = [UIColor colorWithWhite:0.305f alpha:0.0f]; // closest I could get by eye to black, translucent style.
// anyone know how to get it perfect?
tools.barStyle = -1; // clear background
NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:2];
// Create a standard Load button.
self.loadBtn = [[UIBarButtonItem alloc]initWithTitle:#"ON"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(loadRouteAnnotations)];
[buttons addObject:mLoadBtn];
// Add Go button.
UIBarButtonItem *mGoBtn = [[UIBarButtonItem alloc] initWithTitle:#"Go"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(showCheckpoints)];
[buttons addObject:mGoBtn];
// Add buttons to toolbar and toolbar to nav bar.
[tools setItems:buttons animated:NO];
UIBarButtonItem *twoButtons = [[UIBarButtonItem alloc] initWithCustomView:tools];
self.navigationItem.rightBarButtonItem = twoButtons;
//Add annotations of different colors based on initial and final places.
SBRouteAnnotation *startAnnotation = [[SBRouteAnnotation alloc] initWithCoordinate:[[routePoints objectAtIndex:0] coordinate]
title:mStartPoint
annotationType:SBRouteAnnotationTypeStart];
SBRouteAnnotation *endAnnotation = [[SBRouteAnnotation alloc] initWithCoordinate:[[routePoints lastObject] coordinate]
title:mEndPoint
annotationType:SBRouteAnnotationTypeEnd];
[mMap.mapView addAnnotations:[NSArray arrayWithObjects:startAnnotation, endAnnotation,nil]];
}
- (void)directions:(UICGDirections *)directions didFailWithMessage:(NSString *)message {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Map Directions" message:message delegate:nil cancelButtonTitle:nil otherButtonTitles:#"OK", nil];
[alertView show];
}
#pragma mark -
#end
I tried to put my code on a new project (empty application) and it worked fine, i didn't understand that error and its possible causes.
EDIT:
I tried to track the problem by elimination,and my code worked fine when i remove this method:
//Invoked when the class is instantiated in XIB
-(id)initWithCoder:(NSCoder*)aDecoder
{
self = [super initWithCoder:aDecoder];
if( self)
{
[self customInitialization];
}
return self;
}
However, when i run, my app doesn't display me the route between the two points (The purpose of the app). So this method seems important for the whole class because without it, i couldn't get the route and in the other side when it's there, the app crashes. How should i deal with this contradiction?
#Vince is putting you on the right track. Since the problem is in an NSURL method being called by a framework (Google Maps in this case) you need to debug what you are passing to the framework. You have the source for the framework also right? You can set breakpoints in loadWithStartPoint:endPoint:options:] to see what's going on.
One thing I did notice is you are passing an NSMutableArray as the endPoint param when I believe it expects an NSString.

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