How can I load tableView from an NSDictionary in IOS? [closed] - ios

Question

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
I had an application in which I had a response like:
{
"16-06-2016" = (
{
cccc = 16;
dddd = 17;
}
);
"17-06-2016" = (
{
cccc = 14;
dddd = 19;
},
{
cccc = 1;
dddd = 9;
}
);
"18-06-2016" = (
{
cccc = 14;
dddd = 19;
},
{
cccc = 1;
dddd = 9;
}
);
}
How will I display this NSDictionary in my UITableView. Can anybody help me?

Answer 1

Try something like this
self.sectionArr = [jsonDic allKeys]; //First get all section from dictionary like this
Now implement TableView delegate methods
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return self.sectionArr.count;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return [self.sectionArr objectAtIndex:section];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NSArray *arr = [jsonDic objectForKey:[self.sectionArr objectAtIndex:section]];
return arr.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell= [tableview dequeueReusableCellWithIdentifier:#"Cell"];
NSArray *arr = [jsonDic objectForKey:[self.sectionArr objectAtIndex:indexPath.section]];
cell.textLabel.text = [[arr objectAtIndex:indexPath.row] valueForKey:#"dddd"];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSArray *arr = [jsonDic objectForKey:[self.sectionArr objectAtIndex:indexPath.section]];
NSLog(#"Selected Obj - %#",[[arr objectAtIndex:indexPath.row] valueForKey:#"dddd"]);
}
Hope this will help you.

Answer 2

When I display an NSDictionary in a UITableView, since delegate methods like cellForRowAtIndexPath uses indexes, I typically do something like this to get an item at a particular index:
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// Get array of keys
NSArray *keys = [self.dictionary allKeys];
// Get key for the current row
NString *key = [keys objectAtIndex:indexPath.row];
// Get object for current row
id object = [self.dictionary objectForKey:key];
// Then do the typical stuff
UITableViewCell *cell = [tableview dequeueReusableCellWithIdentifier:#"Cell"
forIndexPath:indexPath];
....
Though, in your case, "object" is an NSDictionary, so do something like this:
...
// Get object for current row
NSDictionary *item = [self.dictionary objectForKey:key];
id cccc = [item objectForKey:#"cccc"];
id dddd = [item objectForKey:#"dddd"];
....
If you need the keys sorted, then use keysSortedByValueUsingSelector: rather than allKeys.

Answer 3

Maybe something like this?
(I put data you've provided into dict variable)
#interface MainViewController () {
NSDictionary *dict;
NSArray *sortedKeysAsSectionNames;
}
- (void)viewDidLoad {
[super viewDidLoad];
dict = #{#"16-06-2016": #[#{#"cccc": #(16), #"dddd": #(17)}],
#"17-06-2016": #[#{#"cccc": #(14), #"dddd": #(19)},
#{#"cccc": #(1), #"dddd": #(9)}],
#"18-06-2016": #[#{#"cccc": #(14), #"dddd": #(19)},
#{#"cccc": #(1), #"dddd": #(9)}]
};
NSArray *dictKeys = [dict allKeys];
sortedKeysAsSectionNames = [dictKeys sortedArrayUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) {
NSDateFormatter *format = [[NSDateFormatter alloc] init];
format.dateFormat = #"dd-MM-yyyy";
NSDate *date1 = [format dateFromString:(NSString *)obj1];
NSDate *date2 = [format dateFromString:(NSString *)obj2];
return [date1 compare:date2];
}];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return sortedKeysAsSectionNames.count;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [(NSArray *)[dict objectForKey:sortedKeysAsSectionNames[section]] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
id key = sortedKeysAsSectionNames[indexPath.section];
NSArray *dataInSectionArray = [dict objectForKey:key];
NSDictionary *dataForCellDict = [dataInSectionArray objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:#"cell"];
}
cell.textLabel.text = [[dataForCellDict objectForKey:#"cccc"] description];
cell.detailTextLabel.text = [[dataForCellDict objectForKey:#"dddd"] description];
return cell;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return sortedKeysAsSectionNames[section];
}