How to pass data from uitableview to detail view in storyboard - objective-c

Question

I'm creating my first app in iOS 5 using storyboards. I have a tableviewcontroller embedded in a navigation controller and when you click on the cells in the tableviewcontroller some detail about that cell topic & a URL should be passed to a detail view. I use a PList to populate the tableview. I failed to pass the detail to detail view...
Here is my code (4 classes):
// NormalDataCell.m
#import "NormalDataCell.h"
#implementation NormalDataCell
#synthesize image = _image;
#synthesize nameLabel = _nameLabel;
#synthesize category = _category;
#synthesize webSiteURL = _webSiteURL;
#end
// normalData.m
#import "NormalData.h"
#implementation NormalData
#synthesize name = _name;
#synthesize image = _image;
#synthesize webSiteURL = _webSiteURL;
#synthesize category = _category;
- (id)initWithItem:(NSDictionary *)item {
self = [super init];
if (self) {
_name = [item objectForKey:#"name"];
_image = [UIImage imageNamed:[item objectForKey:#"image"]];
_webSiteURL = [item objectForKey:#"webSiteURL"];
_category = [item objectForKey:#"category"];
}
return self;
}
#end
#implementation NormalCategory
#synthesize category = _category;
#synthesize normalList = _normalList;
- (id)initWithArray:(NSMutableArray *)normalList {
self = [super init];
if (self) {
NSMutableArray *list = [[NSMutableArray alloc]init];
for (NSDictionary *item in normalList) {
NormalData *data = [[NormalData alloc]initWithItem:item];
[list addObject:data];
}
NormalData *data = [list objectAtIndex:0];
_category = data.category;
_normalList = list;
}
return self;
}
#end
// normalViewController.m
#import "NormalViewController.h"
#import "NormalData.h"
#import "NormalDataCell.h"
#import "NormalDetailView.h"
#interface NormalViewController ()
{
#private
NSMutableArray *_cellContentList;
}
#end
#implementation NormalViewController
#synthesize tableView; // Add this line of code
#synthesize roleArray;
- (void)viewDidLoad
{
[super viewDidLoad];
NSURL *url = [NSURL URLWithString:#"http://vfttx.web.fc2.com/normal.plist"];
NSMutableArray *array = [NSMutableArray arrayWithContentsOfURL:url];
_cellContentList = [[NSMutableArray alloc]init];
for (NSMutableArray *item in array)
{
NormalCategory *category = [[NormalCategory alloc]initWithArray:item];
[_cellContentList addObject:category];
}
}
//How do I pass the name & webSiteURL to DetailView?
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([[segue identifier] isEqualToString:#"TableToWebSegue"]) {
NSIndexPath *path = [self.tableView indexPathForSelectedRow];
NSString *cellName = [[_cellContentList objectAtIndex:path.row] objectForKey:#"name"];
[segue.destinationViewController setDetailItem2:cellName];
NSString *urlPath = [[_cellContentList objectAtIndex:path.row] objectForKey:#"webSiteURL"];
[segue.destinationViewController setWebSiteURL:urlPath];
}
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [_cellContentList count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
NormalCategory *category = [_cellContentList objectAtIndex:section];
return [category category];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NormalCategory *category = [_cellContentList objectAtIndex:section];
return [category.normalList count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"normalDataCell";
NormalDataCell *cell = [self.tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Configure the cell...
if (cell == nil) {
cell = [[NormalDataCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
NormalCategory *category = [_cellContentList objectAtIndex:[indexPath section]];
NormalData *data = [category.normalList objectAtIndex:[indexPath row]];
[cell.nameLabel setText:data.name];
[cell.image setImage:data.image];
cell.webSiteURL = data.webSiteURL;
return cell;
}
#end
// NormalDetailView.m
#import "NormalDetailView.h"
#interface NormalDetailView ()
#end
#implementation NormalDetailView
#synthesize webSiteURL;
#synthesize webView;
#synthesize name = _name;
#synthesize detailItem2;
#synthesize testNameLabel;
- (void)viewDidLoad
{
[super viewDidLoad];
testNameLabel.text = detailItem2;
//If the URL is right, it will work.
NSString *strUrl = webSiteURL;
strUrl = [strUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:strUrl];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
}
#end

Answer 1

Presumably you're using segues to move between the different views.
Implement - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender on the view controller containing your table view and it will be called after the user taps the cell. It contains a reference to the segue object which you can use to find the sourceViewController and the destinationViewController, you can use these to set the data in the destination.