Chronologically organize Cells in TableView - ios

Question

I have two UITableViewCell's that each correspond to a Twitter Tweet or a Instagram Pic. As of now I have set it so that It will alternate between the two cells and have It go from an Twitter Tweet to an Instagram Pic. However I want to organize the UITableView so that it organizes both the Twitter Tweets and Instagram Pics chronologically in the TableView. Both the date keys for the Instagram API and the Twitter API are different. The Twitter API has a time key of created_at and Instagram's key is created_time. How would I organize both these Arrays? P.S. Both the arrays which the Tweets and Pics are in are NSMutableArray's.
Here is the Code that I have tried thus far:
// Setup for Cells
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *twitterCell = [self createTwitterCell:indexPath];
UITableViewCell *instagramCell = [self createInstagramCell:indexPath];
if (indexPath.row % 2 == 0) {
return twitterCell;
}else{
return instagramCell;
}
}
// Array Updater
- (void)updateArrays {
instaPics = self.timelineResponse[#"data"];
totalFeed = [tweets arrayByAddingObjectsFromArray:instaPics];
[self sortArrayBasedOndate:totalFeed];
}
// Current flawed method to organize by date
- (void)sortArrayBasedOndate {
NSDateFormatter *fmtDate = [[NSDateFormatter alloc] init];
[fmtDate setDateFormat:#"yyyy-MM-dd"];
NSDateFormatter *fmtTime = [[NSDateFormatter alloc] init];
[fmtTime setDateFormat:#"HH:mm"];
NSComparator compareDates = ^(id string1, id string2)
{
// Instagram Date Retrieval
NSDictionary *instagram = self.instaPics;
NSString *createdAt = instagram[#"created_time"];
int createdAtN = [createdAt intValue];
NSTimeInterval timestamp = (NSTimeInterval)createdAtN;
NSDate *date1 = [NSDate dateWithTimeIntervalSince1970:timestamp];
// Twitter Date Retrieval
NSDictionary *twitter = self.tweets;
NSDate *date2 = twitter[#"created_at"];
return [date1 compare:date2];
};
NSSortDescriptor * sortDesc1 = [[NSSortDescriptor alloc] initWithKey:#"start_date" ascending:YES comparator:compareDates];
[totalFeed sortUsingDescriptors:#[sortDesc1]];
}
If you guys need any more code excerpts feel free to ask :)

Answer 1

It seems like you're on the right track. Why don't you also format Twitter's time to match your formatting for Instagram's time?
NSComparator compareDates = ^(id string1, id string2)
{
// Instagram Date Retrieval
NSDictionary *instagram = self.instaPics;
NSString *createdAt = instagram[#"created_time"];
int createdAtN = [createdAt intValue];
NSTimeInterval timestamp = (NSTimeInterval)createdAtN;
NSDate *date1 = [NSDate dateWithTimeIntervalSince1970:timestamp];
// Twitter Date Retrieval
NSDictionary *twitter = self.tweets;
NSString *twitterCreated = twitter[#"created_at"];
int createdAtTwitter = [twitterCreated intValue];
NSTimeInterval timestampTwitter = (NSTimeInterval)createdAtTwitter;
NSDate *date2 = [NSDate dateWithTimeIntervalSince1970:timestampTwitter];
return [date1 compare:date2];
};