My UITableView include multitype data, one is showing some pictures and another is visiting website, so how do I implement?
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"showDetail"]) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
NSDate *object = _objects[indexPath.row];
[[segue destinationViewController] setDetailItem:object];
}
}
Use Following approach
Use following table delegate method,and in this method check your data type is URL or Image according to these push particular View Controller.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// check your data type
if(Data type is URL)
{
From Here Push ViewController for URL
}
if(DATA TYPE IS IMAGE)
{
From HERE push ViewController FOR Image
}
}
OR Another approach :
1, Take one BOOL variable, set its value in following method, if it is URL set BOOL YES and if it is image set BOOL NO.
2, Check BOOL value and handle you subview in your detailViewController by hiding and Show it.
Related
Hello i am trying to pass variable with segue.
I am getting variable to pass with tableView:willSelectedRowAtIndexPath: is this correct way? If it is not, how should i achieve this? (Note: It is working like this.)
- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath {
selectedCoffeeShop = [coffeeShops objectAtIndex:indexPath.row];
return indexPath;
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"coffeeShopDetailSegue"]) {
CoffeeShopDetailViewController *controller = (CoffeeShopDetailViewController *)segue.destinationViewController;
[segue destinationViewController];
controller.coffeeShop = selectedCoffeeShop;
}
}
If your segue is made from the cell itself, then there is no need to implement either willSelectRowAtIndexPath or didSelectRowAtIndexPath. You only need prepareForSegue:sender: since the sender argument will be the cell, and you can use that to get the indexPath you need,
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(UITableViewCell *)sender {
if ([segue.identifier isEqualToString:#"coffeeShopDetailSegue"]) {
NSInteger row = [self.tableView indexPathForCell:sender].row;
CoffeeShopDetailViewController *controller = segue.destinationViewController;
controller.coffeeShop = coffeeShops[row];
}
}
That way to do it is absolutely fine.
Another way would be to remove the automatic segue trigger from storyboards and instead implement:
tableView:didSelectRowAtIndexPath: to call performSegueWithIdentifier:sender:.
It could look like this:
- (NSIndexPath *)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
selectedCoffeeShop = [coffeeShops objectAtIndex:indexPath.row];
[self performSegueWithIdentifier:#"coffeeShopDetailSegue" sender:self];
return indexPath;
}
In that case you still need your implementation of prepareForSegue:sender:.
You could also do it completely without segues, using UINavigationController, but then you'd have to instantiate the CoffeeShopDetailViewController programmatically as well.
Your approach is perfectly fine though!
As noted in the comments, you can remove [segue destinationViewController];, since this returns the destination view controller which you already saved in the variable controller in the line right above. :)
I am having trouble getting the unique data from the selected table cell. Every cell I click seems to pass the same data. Any advise on what I did wrong here?
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"MallToVendor"]) {
MingieAdvertisementIndividualViewController *destViewController = segue.destinationViewController;
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
destViewController.mallName = [[advertisements objectAtIndex:indexPath.row] name];
}
}
Instead of using indexPathForSelectedRow, save the selected indexpath.row in the didSelectRowAtIndexPath method in an integer variable and use it in prepareForSegue.
If you use indexPathForSelectedRow it will always return indexpath of the first row.
Hope this helps!
Define this property in your #implementation file
#property(nonatomic) int indexOfSelectedRow;
In your didSelectROwAtIndexPathmethod do this
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.indexOfSelectedRow=indexPath.row;
}
And in your prepareForSegue method, do this-
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"MallToVendor"])
{
MingieAdvertisementIndividualViewController *destViewController=segue.destinationViewController;
destViewController.mallName = [[advertisements objectAtIndex:self.indexOfSelectedRow] name];
}
}
This will probably take two seconds to answer, but my search skills have not gotten me very far on this issue. I am performing a segue but I'm not sure how to grab the id on the destination. Here is my code on the tableview controller.
- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath: NSIndexPath *)indexPath{
NSLog(#"reaching accessoryButtonTappedForRowWithIndexPath:");
[self performSegueWithIdentifier:#"leads_calls_to_detail" sender:[[self.leads_calls objectAtIndex:indexPath.row] objectForKey:#"ID"]];
}
What do I have to create on my destination view controller to be able to grab the id that I'm attempting to pass, or is the way I'm performing my segue incompatible with what I am attempting?
You should just pass values to the destinationViewController inside prepareForSegue: and pass self as the sender.. try using something like:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([[segue identifier] isEqualToString:#"leads_calls_to_detail"])
{
YourViewController *controller=(YourViewController *)segue.destinationViewController;
NSIndexPath *path = [self.tableView indexPathForSelectedRow];
//Or rather just save the indexPath in a property in your currentViewController when you get the accessoryButtonTappedForRowAtIndexPath callback, and use it here
controller.yourPropertyToSet = [self.leads_calls objectAtIndex:path.row];
}
}
And also according to Rob Mayoff, you can grab the index path for the row that the accessory was tapped at by using something like this:
NSIndexPath *indexPath = [self.tableView indexPathForCell:sender];//where sender is the sender passed in from prepareForSegue:
How to find indexPath for tapped accessory button in tableView
Hey there I have been working on a transit app for some time and have been stuck with this issue for a while now.
I am using iOS 5 and a storyboard. Basically I have a UITableView that displays favorite bus stop locations, when a user selects a row I use:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Favorite *favorite = [self.favoriteItems objectAtIndex:indexPath.row];
stopString = favorite.title;
routeString = favorite.subtitle;
}
With the stop and route information of the cell the user chose I then prepare for a segue that corresponds to a segue on my storyboard, pushing a detail view controller that uses the stop name and route name to display times from a plist.
I am fairly new to Objective C and iOS so I am using a segue that my friend told me would work, however, it might be the problem. The segue looks like this:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
UIViewController *destination = segue.destinationViewController;
if ([destination respondsToSelector:#selector(setDelegate:)])
{
[destination setValue:self forKey:#"delegate"];
}
if ([destination respondsToSelector:#selector(setSelection:)])
{
NSString *route = routeString;
NSDictionary *selection1 = [NSDictionary dictionaryWithObjectsAndKeys:route, #"route", stopString, #"stop", nil];
[destination setValue:selection1 forKey:#"selection"];
}
}
After the segue in my DetailViewController I grab the stop and route information in the view DidLoad:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
route = [selection objectForKey:#"route"];
stopName = [selection objectForKey:#"stop"];
NSLog(#"stopName: %#", stopName);
NSLog(#"routeName: %#", route);
}
Here is where my problems arise. When I run the simulator and click on an a cell in my table view, I am pushed to the DVC, however, the stopName and routeName are both null, so no information was sent or received. BUT, if I go back to the table and click another cell, the routeName and stopName are filled with the information that should have sent the first time I clicked a cell. If I continue this process it continues to send the information for the cell tapped previously, not currently.
So basically information is sending but only after I go through the segue twice. Obviously I want it to send the information and receive it the first time, but it is delayed and driving me nuts. I appreciate any help someone can give me as I have been searching the internet for days now trying to fix this issue, thank you so much in advance for any assistance!
prepareForSegue: is being called before didSelectRowAtIndexPath:. This is why the values you see always are lagging behind.
The better solution is to get the stopString and routeString values in your prepareForSegue: method (and not use didSelectRowForIndexPath: at all). The key to doing this is to realize that the sender parameter value being passed to prepareForSegue: is the UITableViewCell that was tapped. You can use the UITableView method indexPathForCell to get the cell's indexPath in your table, and then use that to look up the data in your favoriteItems array.
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
UITableViewCell *cell = (UITableViewCell*)sender;
NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
Favorite *favorite = [self.favoriteItems objectAtIndex:indexPath.row];
stopString = favorite.title;
routeString = favorite.subtitle;
UIViewController *destination = segue.destinationViewController;
if ([destination respondsToSelector:#selector(setDelegate:)])
{
[destination setValue:self forKey:#"delegate"];
}
if ([destination respondsToSelector:#selector(setSelection:)])
{
NSString *route = routeString;
NSDictionary *selection1 = [NSDictionary dictionaryWithObjectsAndKeys:route, #"route", stopString, #"stop", nil];
[destination setValue:selection1 forKey:#"selection"];
}
}
Make sure that you are NOT connecting the segue to the next view controller to the tableView CELL directly. Connect to the whole UITableViewController / UIViewController (whichever you are using) and give a name, say "segueNameInStoryboard".
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Favorite *favorite = [self.favoriteItems objectAtIndex:indexPath.row];
stopString = favorite.title;
routeString = favorite.subtitle;
/* add this line */
[self performSegueWithIdentifier:#"segueNameInStoryboard" sender:self];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:#"segueNameInStoryboard"])
{
UIViewController *nextViewController = segue.destinationViewController;
nextViewController.delegate = self;
NSDictionary *selection1 = [NSDictionary dictionaryWithObjectsAndKeys:routeString, #"route", stopString, #"stop", nil];
nextViewController.selection = selection1;
}
}
So, using storyboard you can create a segue from the UITableViewCell from the first tableViewController to a detailViewController.
Not too complicated, however, when a UISearchBarDisplayController is introduced into the storyboard mix, how can you segue the results cell to the detailViewController?
I am able to search without a problem, I followed this tutorial: http://clingingtoideas.blogspot.com/2010/02/uitableview-how-to-part-2-search.html
All I can do is select a row from the search, it turns blue and doesn't go to the detailViewController.
I have implemented the method prepareForSegue, which works for the non searched cells, but can't figure out this one.
Here's the solution that's based on the comment by #James Chen. Also using a different IndexPath depending on which state the table is in.
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"toDetail"]) {
Person *person = nil;
if (self.searchDisplayController.active == YES) {
NSIndexPath *indexPath = indexPath = [self.searchDisplayController.searchResultsTableView indexPathForSelectedRow];
NSLog(#"segue - section: %d, row: %d", indexPath.section, indexPath.row);
person = [self.filteredPersonArray objectAtIndex:indexPath.row];
}
else {
NSIndexPath *indexPath = indexPath = [self.tableView indexPathForSelectedRow];
NSLog(#"segue - section: %d, row: %d", indexPath.section, indexPath.row);
person = [self.personArray objectAtIndex:indexPath.row];
}
[[segue destinationViewController] setPerson:person];
}
}
I tried your solution and found that prepareForSegue is called twice
due to the life cycle and didSelect... -> performSegueWithIdentifier.
self:prepareForSegue: object on destination controller is set
(with wrong index) because
dest:viewDidLoad: the destination controller view is loaded after which
self:didSelectRow...: the index is known and properly set.
self:prepareForSegue: object is now correct but has no side effect.
I then focused on didSelect... and came up with this solution where I deleted the segue and pushed the view programmatically:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
DestTableViewController *controller = [self.storyboard instantiateViewControllerWithIdentifier:#"DestViewController"];
CustomObj *custObj = nil;
if (tableView == self.searchDisplayController.searchResultsTableView) {
custObj = [filteredListContent objectAtIndex:indexPath.row];
} else {
storeToDetail = [self.fetchedResultsController objectAtIndexPath:indexPath];
}
controller.custObj = custObj;
[self.navigationController setNavigationBarHidden:NO];
[self.navigationController pushViewController:controller animated:YES];
// presentViewController::animated:completion is always full screen (see problem below)
}
I then experienced some problems going back because I follow a segue
from a mapView, which lead to:
//DestinationViewController
- (IBAction)back:(id)sender
{
[self.navigationController popToRootViewControllerAnimated:YES]; // list
[self.presentingViewController dismissViewControllerAnimated:YES completion:nil]; // map
}
which is not the way to do it but for now it works.
However, the first part is easy and clean, and maybe it works for you too?!
Ok I think I got it, it seems like a bit of a hack but it works for my purposes:
I am using storyboard:
I have a UITableview controller with UISearchBarDisplayController directly on top of it. No code just drag and drop.
From there, I followed this tutorial to get the search bar to search correctly http://clingingtoideas.blogspot.com/2010/02/uitableview-how-to-part-2-search.html
However prepareForSegue: would only let me display a cell from the original array, not with the search array.
So I used didSelectRowAtIndexPath:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (savedSearchTerm) {
searchRowSelected = indexPath.row; //<-- the trick that worked
[self performSegueWithIdentifier:#"ShowDetail" sender:self];
}
}
searchRowSelected is an int variable that I declared at the top of the class.
didSelectRowAtIndexPath: knew which row I was selecting, but prepareForSegue didn't. Thats why I needed that variable.
This is how I used it in prepareForSegue:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if ([segue.identifier isEqualToString:#"ShowDetail"]) {
dvc = [segue destinationViewController];
NSIndexPath* path = [self.tableView indexPathForSelectedRow];
int row = [path row];
if (savedSearchTerm){ //set the detailViewController with the searched data cell
myDataClass* c = [searchResults objectAtIndex:searchRowSelected];
dvc.myDataClass = c;
}else{ //set the detailViewController with the original data cell
myDataClass* c = [array objectAtIndex:row];
dvc.myDataClass = c;
}
}
}
Also use this code to clean up savedSearchTerm
-(void) searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller{
[self setSavedSearchTerm:nil];
}
If anyone has a better solution I'm all ears :)