how to display dictionary keys as sections and values as rows in a table view in ios?

user2523879 Published at Dev

user2523879

I have a NSMutableDictionary as below,

NSMutableDictionary *aSite;
NSArray *aDocs=[[NSArray alloc]initWithObjects:@"aaaa",@"bbbb",@"cccc", nil];
NSArray *bDocs=[[NSArray alloc]initWithObjects:@"aaaa",@"bbbb",@"cccc", nil];
NSArray *cDocs=[[NSArray alloc]initWithObjects:@"aaaa",@"bbbb",@"cccc", nil];
aSite=[[NSMutableDictionary alloc]init];
[aSite setObject:aDocs forKey:@"A library"];
[aSite setObject:bDocs forKey:@"B library"];
[aSite setObject:cDocs forKey:@"C library"];

Now,I have to display the keys as section and values as rows in the section,how to do that? please help

Matías R

In your UITableViewDataSource implementation:

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return aSite.allKeys.count;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    NSString *arrayKey = [aSite.allKeys objectAtIndex:section];
    NSArray *a = [aSite objectForKey:arrayKey];

    return a.count;
}

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

    NSString *arrayKey = [aSite.allKeys objectAtIndex:indexPath.section];
    NSArray *a = [aSite objectForKey:arrayKey];
    cell.textLabel.text = [a objectAtIndex:indexPath.row];

    return cell;
}

Notice however that allKeys and allValues do not define a specific order (from the docs, "The order of the elements in the array is not defined"). I would convert your structure to an array of arrays before loading the data in the table view.

Collected from the Internet

Please contact [email protected] to delete if infringement.