Multiple TableViews in one View - Array of data sources? - ios

Question

I'm trying to recreate a view controller similar to the "weather" app that comes stock on the iPhone. I've got a scrollview that contains an individual tableview per page, and I'm struggling to figure out a way to specify the data for each table view.
The tricky part is that the info in each tableview and the tableviews themselves change based on user defaults. Basically, I have an Array of dictionaries stored in user defaults, and each object in this array has its own tableview. Each dictionary contains a title, a lat and a long. When I create the tables, I also use the lat and long to get some data from the internet via an api call and parser. Here's the code:
- (void)setupScrollView
{
scrollView.delegate = self;
[self.scrollView setBackgroundColor:[UIColor clearColor]];
[scrollView setCanCancelContentTouches:NO];
scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scrollView.clipsToBounds = YES;
scrollView.scrollEnabled = YES;
scrollView.pagingEnabled = YES;
scrollView.showsHorizontalScrollIndicator = NO;
//this is an array of dictionaries that hold a location title, as well as a lat and lng.
NSArray *arrayForLocations = [NSArray arrayWithArray:[appDelegate.defaults objectForKey:#"arrayOfLocationDicts"]];
NSLog(#"Array of Location Dicts holds: %#",arrayForLocations);
for (int i = 0; i < arrayForLocations.count; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *subview = [[UIView alloc] initWithFrame:frame];
[self.scrollView addSubview:subview];
UITableView *tbView = [[UITableView alloc]initWithFrame:CGRectMake(0, 40, scrollView.frame.size.width, scrollView.frame.size.height - 40)];
tbView.backgroundColor = [UIColor grayColor];
tbView.tag = i;
tbView.delegate = self;
tbView.dataSource = self;
[subview addSubview:tbView];
UILabel *locationLabel = [[UILabel alloc]initWithFrame:CGRectMake(5, 5, 260, 40)];
locationLabel.textColor = [UIColor blackColor];
locationLabel.text = [[arrayForLocations objectAtIndex:i]objectForKey:#"location_address"];
[subview addSubview:locationLabel];
pageControl.numberOfPages = [arrayForLocations count];
//get coordinate from dictionary
CLLocationCoordinate2D eventCoordinate;
eventCoordinate.latitude = [[[arrayForLocations objectAtIndex:i]objectForKey:#"location_latitude"]floatValue];
eventCoordinate.longitude = [[[arrayForLocations objectAtIndex:i]objectForKey:#"location_longitude"]floatValue];
//turn coordinate into data
SDJConnection *connection = [[SDJConnection alloc]init];
NSMutableArray *singleDataSource = [connection getEventInfoWithCoordinate:eventCoordinate];
//store data in array
[arrayOfDataSources addObject:singleDataSource];
NSLog(#"array of Data Sources in the scrollsetup: %#",arrayOfDataSources);
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * arrayForLocations.count, self.scrollView.frame.size.height);
}
So now my problem is telling each of these tables what data to display. My first thought was to set the tag of the table, as I do above, and then have something like this in the cellForRowAtIndexPath -
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
int i = tableView.tag;
if (tableView.tag = i) {
cell.textLabel.text = [[[arrayOfDataSources objectAtIndex:i]objectAtIndex:indexPath.row]eventTitle];
}
that unfortunately hasn't been working for me correctly. Does anyone have any thoughts as to how to get this done?
Thanks!!

Answer 1

For sure
if (tableView.tag = i) {
should be
if (tableView.tag == i) {
and even then, it's an odd construct -- not sure what you're trying to achieve there. You set the i to the tag and then you check to see if the tag is i? Doesn't really make sense -- that's where I'd suggest you take a close look and rethink your logic.