indexPath.row always gives zero (why not work?) - ios

Question

Prompt, here is a code that sorts the dictionary by distance, I need to pass a variable coord to detailview where it is separated into position and put the marker on karte.No why coord gives 0 and how do I transfer it to the coordinates?
- (void)viewDidLoad
{[self setupArray];
[super viewDidLoad];}
-(void)setupArray{ self.myLocationManager = [[CLLocationManager alloc] init];
[states setObject: #12 forKey:#"60.050043,30.345783"];
[states setObject: #11 forKey:#"60.037389,30.322094"];
[states setObject: #32 forKey:#"60.037329,30.322014"];
[states setObject: #1 forKey:#"59.957387,30.324681"];
NSLog(#"%f",betweenDistance);
NSArray* sortedStates = [states keysSortedByValueUsingComparator: ^(id obj1, id obj2)
{
if ([obj1 floatValue] > [obj2 floatValue])
{
return (NSComparisonResult)NSOrderedDescending;
}
if ([obj1 floatValue] < [obj2 floatValue])
{
return (NSComparisonResult)NSOrderedAscending;
}
return (NSComparisonResult)NSOrderedSame;
}];
NSLog(#"%#", sortedStates);
NSMutableArray* rows = [[NSMutableArray alloc] init];
for (NSString* key in sortedStates)
{
CGFloat distance = [[states objectForKey:key] floatValue];
[rows addObject:[NSString stringWithFormat:#"Distance is %f km", distance]];
}
datasource=rows;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 4;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Detail2ViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:#"detail"];
[self.navigationController pushViewController:detail animated:YES];
NSString* coord = sortedStates[indexPath.row];
NSLog(#"virable coord %#",coord);
}
UPDATE
2015-04-23 13:25:07.361 gfhfgh[503:7361] 8845784.000000
2015-04-23 13:25:07.363 gfhfgh[503:7361] (
"59.957387,30.324681",
"60.037389,30.322094",
"60.050043,30.345783",
"60.037329,30.322014"
)
2015-04-23 13:25:07.620 gfhfgh[503:7361] Google Maps SDK for iOS version: 1.9.14591.0
2015-04-23 13:25:10.294 gfhfgh[503:7361] as (null) it is virable coord
2015-04-23 13:25:10.296 gfhfgh[503:7361] my viraible (null)
2015-04-23 13:25:10.296 gfhfgh[503:7361] ((null)) was false: provideAPIKey: should be called at most once
UPDATE2
I use this function, it may be because it does not work?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell...
//---------- CELL BACKGROUND IMAGE -----------------------------
UIImageView *imageView = [[UIImageView alloc] initWithFrame:cell.frame];
UIImage *image = [UIImage imageNamed:#"LightGrey.png"];
imageView.image = image;
cell.backgroundView = imageView;
[[cell textLabel] setBackgroundColor:[UIColor clearColor]];
[[cell detailTextLabel] setBackgroundColor:[UIColor clearColor]];
cell.textLabel.text = [datasource objectAtIndex:indexPath.row];
//Arrow
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}

Answer 1

It's not a good practice to call [self setupArray] before [super viewDidLoad]. Call it before.
Try to call UITableView's method - (void)reloadData after loading your data on - (void)setupArray to tell tableView's delegate that you have loaded or updated your data and want to show it on the tableView. It should resolve your problem.
FYI: In your case, numberOfRowsInSection: should return [sortedStates count] to be sure that when you tap a cell, your app will not crash.
Update
- (void)viewDidLoad
{
[super viewDidLoad];
//Call setup array after [super viewDidLoad]
[self setupArray];
}
-(void)setupArray {
//Do all your setupArray stuff
//Now update the table contents
[yourTableView reloadData];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
//Use [sortedStates count] here to be sure your app will not crash later
return [sortedStates count];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Detail2ViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:#"detail"];
[self.navigationController pushViewController:detail animated:YES];
NSString* coord = sortedStates[indexPath.row];
NSLog(#"virable coord %#",coord);
}
Update 2
I think I found the reason ! You have a instance variable called sortedStates, but inside - (void)setupArray you are declaring a local variable with the same name, and thats why you are not getting the values within the other methods.
Try changing
NSArray* sortedStates = [states keysSortedByValueUsingComparator: ^(id obj1, id obj2) {
//stuff
}];
with
//without "NSArray *"
sortedStates = [states keysSortedByValueUsingComparator: ^(id obj1, id obj2) {
//stuff
}];

Answer 2

Its because sortedStates[indexPath.row]; will result into a NSDictionary.
So code should be :
NSDictionary *coord = sortedStates[indexPath.row];
Pass this value to your detailViewController and extract the coordinate there.