Program flow issues in ios - ios

Question

I am parsing a json to display the contents in the tableview. I have the array containing parsed json being populated in getReceivedData which is called after the UITAbleView Delegate methods. So it is problem in populating tableview as when the compiler attempts to populate it the array is not yet initialized.
- (void)getReceivedData:(NSMutableData *)data sender:(RestAPI *)sender{
NSError * error=nil;
NSArray *receivedData = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
NSString *dictionaryKey=#"department";
NSString *predicateString=#"software";
NSPredicate *predicate=[NSPredicate predicateWithFormat:#" %K == %# ", dictionaryKey,predicateString];
NSArray *shortlisted=[receivedData filteredArrayUsingPredicate:predicate];
for(int i = 0; i<shortlisted.count; i++)
{
NSDictionary *detailItems=[shortlisted objectAtIndex:i];
NSString *name=[detailItems objectForKey:#"emp_name"];
NSString *designation=[detailItems objectForKey:#"designation"];
NSString *email=[detailItems objectForKey:#"email"];
NSString *phone_no=[detailItems objectForKey:#"phone_no"];
// NSString *image=[detailItems objectForKey:#"url_path"];
dictionary1=[NSMutableDictionary dictionaryWithObjectsAndKeys:
name, #"keyname",
designation, #"keydesignation",
email, #"keyid",
phone_no, #"keyphone",
nil];
[myObject1 addObject:dictionary1];
}
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:
(NSInteger)section{
if(isfiltered==YES){
return [filteredArray count];
}
else{
return [myObject1 count];
}
}
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath{
MyTableCell *cell=[tableView dequeueReusableCellWithIdentifier:#"myCell"];
if(!cell){
[tableView registerNib:[UINib nibWithNibName:#"MyTableCell" bundle:nil]
forCellReuseIdentifier:#"myCell"];
cell=[tableView dequeueReusableCellWithIdentifier:#"myCell"];
}
if(isfiltered==NO)
{
NSDictionary * tmpdict= [myObject objectAtIndex:indexPath.row];
cell.nameLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keyname"]];
cell.designationLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keydesignation"]];
cell.idLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keyid"]];
cell.phoneLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keyphone"]];
cell.mainImg.image = [UIImage imageNamed:[tmpdict objectForKeyedSubscript:#"keyimage"]];
}
else{
NSDictionary * tmpdict= [filteredArray objectAtIndex:indexPath.row];
cell.nameLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keyname"]];
cell.designationLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keydesignation"]];
cell.idLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keyid"]];
cell.phoneLabel.text=[NSMutableString stringWithFormat:#"%#",[tmpdict objectForKeyedSubscript:#"keyphone"]];
cell.mainImg.image = [UIImage imageNamed:[tmpdict objectForKeyedSubscript:#"keyimage"]];
}
return cell;
}
This window was supposed to view the table

Answer 1

In a mutable dictionary first you have to give object then its key. You are doing wrong
for(int i = 0; i<shortlisted.count; i++)
{
NSDictionary *detailItems=[shortlisted objectAtIndex:i];
NSString *name=[detailItems objectForKey:#"emp_name"];
NSString *designation=[detailItems objectForKey:#"designation"];
NSString *email=[detailItems objectForKey:#"email"];
NSString *phone_no=[detailItems objectForKey:#"phone_no"];
dictionary1=[NSMutableDictionary dictionaryWithObjectsAndKeys:
name,#"keyname",
designation,#"keydesignation",
email,#"keyid",
phone_no,#"keyphone",
nil];
[myObject1 addObject:dictionary1];
}

Answer 2

Actually this is not correct way to intialize dictionary as you did, #"%#" is used %# is a placeholder in a format string for any object.
dictionary1=[NSMutableDictionary dictionaryWithObjectsAndKeys:
name,#"keyname",
designation,#"keydesignation",
email,#"keyid",
phone_no,#"keyphone",
nil];