如何将多个对象添加到数组 - Objective C / iOS

Question

I'm new to programming in Objective C

Here is my Dilemma: I'm pulling in a JSON file from the web and I'm able to display one of the elements (currDate) to my tableView but now I want to display more. From the code below I would I get it to display both currDate and prevDate

The logic needs to be changed here:

for (NSDictionary *diction in arrayOfEntry) {
    NSString *currDate = [diction objectForKey:@"Current Date"];
    a = currDate;
    NSString *prevDate = [diction objectForKey:@"Previous Date"];
    b = prevDate;     

    [array addObject:a]; 

    }
    [[self myTableView]reloadData];

I'm not sure if I need to change anything here but I'm attaching it to show how I'm displaying the array to my viewTable:

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [array count];
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

if(!cell)
{
    cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault     reuseIdentifier:CellIdentifier];
}

cell.textLabel.text = [array objectAtIndex:indexPath.row];
//cell.textLabel.text = [array objectsAtIndexes:indexPath.row];
return cell;
}

Answer 1

make arrayOfEntry global. in.h file

NSArray *arrayOfEntry;

In numberOfRowsInSection

[arrayOfEntry count]

In tableView: cellForRowAtIndexPath

NSString *currDate = [[arrayOfEntry objectAtIndex:indexPath.row] objectForKey:@"Current Date"]
NSString *prevDate = [[arrayOfEntry objectAtIndex:indexPath.row] objectForKey:@"Previous Date"]
cell.textLabel.text = [NSString stringWithFormat:@"%@   %@", currDate, prevDate];

Answer 2

just add another line:

[array addObject:a];
[array addObject:b];

Answer 3

To add multiple elements to an Array in objective c you need to use:

 NSMutableArray *newArr = [NSMutableArray new];

Then:

[newArr addObject:dict1];

If you want, you can then set your NSArray you were using to the NSMutuableArray after the addition of objects is complete.