Push Uiview and populate with data - xcode

Question

I'm creating a simple app that stores data into a sqlite database and retrieves data from it. I'm able to store data and I'm also able to populate a UITableView with all the data, showing a field (name) in the prototype cell. What I'm trying to do now is to open a view on tap to show ALL the details. So I did set up a viewController with 3 fields to be filled in, but I don't know how to transfer data between that cell to the new view.
Here's my code:
#import "RootViewController.h"
#import "AppDelegate.h"
#import "Inserimento_Esame.h"
#import "Dettagli_Esame.h"
#interface RootViewController ()
#end
#implementation RootViewController
#synthesize nome,crediti,voto;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *docsDir;
NSArray *dirPaths;
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,
YES);
docsDir = [dirPaths objectAtIndex:0];
databasePath = [[NSString alloc] initWithString: [docsDir stringByAppendingPathComponent:
#"Esami.sqlite"]];
dataList = [[Data alloc] init:databasePath];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:
(UIInterfaceOrientation)interfaceOrientation
{return YES;}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [dataList getSize];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath
*)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:CellIdentifier];
}
NSDictionary *itemAtIndex = (NSDictionary *)[dataList objectAtIndex:indexPath.row];
cell.textLabel.textColor = [UIColor whiteColor];
cell.textLabel.text = [itemAtIndex objectForKey:#"nome"];
cell.detailTextLabel.textColor = [UIColor whiteColor];
cell.detailTextLabel.text = [itemAtIndex objectForKey:#"voto"];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
*)indexPath {
[self performSegueWithIdentifier:#"DETTAGLI" sender:indexPath];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"DETTAGLI"]) {
NSLog(#"Dettagli");
Dettagli_Esame *destination = [segue destinationViewController];
NSIndexPath * myIndexPath = [self.tableView indexPathForSelectedRow];
NSDictionary *itemAtIndex = (NSDictionary *)[dataList objectAtIndex:myIndexPath.row];
destination.Dett = itemAtIndex;
// I THINK I MUST PUT HERE MY MISSING CODE
}
}
#end
EDIT3
#import "Dettagli_Esame.h"
#interface Dettagli_Esame ()
#end
#implementation Dettagli_Esame
#synthesize nome;
#synthesize crediti;
#synthesize voto;
#synthesize Dett;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{[super viewDidLoad];}
EDIT5-6:
-(void)viewDidAppear:(BOOL)animated{
NSString *docsDir;
NSArray *dirPaths;
NSLog(#"Dettagli Esame");
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,
YES);
docsDir = [dirPaths objectAtIndex:0];
databasePath = [[NSString alloc] initWithString: [docsDir stringByAppendingPathComponent:
#"Esami.sqlite"]];
dataList = [[Data alloc] init:databasePath];
nome.text = [Dett objectForKey:#"nome"];
crediti.text = [Dett objectForKey:#"crediti"];
voto.text = [Dett objectForKey:#"voto"];
NSLog(#"Dettagli Esame: %#", self.Dett);
}

Answer 1

You seem to be on the right track. The information that destination needs is the same that you used to populate your cell (actually, you say 3 fields but I'll assume they're all in the same dictionary), so:
NSDictionary *itemAtIndex = (NSDictionary *)[dataList objectAtIndex:myIndexPath.row];
Then you need to create a NSDictionary property in the Dettagli_Esame class and assign it, something like:
destination.displayDictionary = itemAtIndex;
These lines would go where you indicate "missing code".