How to Connect two tables using NSDictionary? - nsdictionary

Question

In my iphone design, there are two table views added.
One table view is for displaying the MenuList for hotels using NsDictionary(Like Veg. NonVeg, Beverages..) and the other table view is for displaying the ListItems(Like In veg, i will Have Paneer,Rotti..) . When ever a menuList cell is selected the files inside the selected list needs to to be displayed in the other table view(ListIems).
My problem is
I am confused about
I want to use NsDictionary Alone in this two table . Can anyone give me a simple code for this. i am confused and am a fresher. Thanks In advance if someone teaches me. Please help. iam using xcode5
#interface TableViewController ()
#end
#implementation TableViewController
#synthesize menuDict ;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
menuName = [NSArray arrayWithObjects:#"Veg", #"NonVeg", #"Beverages", nil];
menuId = [NSArray arrayWithObjects:#"1", #"2", #"3", nil];
self.menuDict = [NSDictionary dictionaryWithObjects:menuName
forKeys:menuId];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#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 [[self.menuDict allKeys] count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *unifiedID = #"TableCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:unifiedID];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:unifiedID];
}
for (id key in self.menuDict) {
NSLog(#"key: %#, value: %#", key, [self.menuDict objectForKey:key]);
}
NSString *key = [self.menuDict allKeys][indexPath.row];
NSString *menuNameString = self.menuDict[key];
NSString *menuIdString = key;
cell.textLabel.text = menuNameString;
cell.detailTextLabel.text = menuIdString;
return cell;
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([[segue identifier] isEqualToString:#"ShowDetails"])
{
NSDictionary *vvegDict = [[NSDictionary alloc]initWithObjectsAndKeys:#"1",#"Rotti" , #"2", #"Panner", nil] ;
DetailTableViewController *tvc = segue.destinationViewController ;
tvc.vegDict =vvegDict ;
}
}
second table :
// Is this right to declare the lists here same as my first table. Please help me in this one.
#interface DetailTableViewController ()
#end
#implementation DetailTableViewController
#synthesize vegName,vegId ;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
vegName = [NSArray arrayWithObjects:#"Rotti", #"Panneer", #"Chappathi", nil];
vegId = [NSArray arrayWithObjects:#"1", #"2", #"3", nil];
self.vegDict = [NSDictionary dictionaryWithObjects:vegName
forKeys:vegId];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1 ;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[self.vegDict allKeys]count] ;
return 1 ;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *unifiedID = #"aCellID";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:unifiedID];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:unifiedID];
}
for (id key in self.vegDict) {
NSLog(#"key: %#, value: %#", key, [self.vegDict objectForKey:key]);
}
NSString *key = [self.vegDict allKeys][indexPath.row];
NSString *vegNameString = self.vegDict[key];
NSString *vegIdString = key;
cell.textLabel.text = vegNameString;
cell.detailTextLabel.text = vegIdString;
return cell;
}

Answer 1

If you are using Segues to go from one uitableviewcontroller to other then you can use
-prepareForSegue:sender:
in this method you can set an NSDictionary property in the destination view controller. You can get the the destination view controller from the the sender argument.