I have a table view controller that displays all fetchresults for an entity. when a row is selected, I want that row to pass its information to a detail view controller. problem is I get stuck on how to only show the entity selected and not all of them before I segue.I thought with just what I had in didSelectAtIndexPath it should be changing the textfield's text in the next view controller, but it doesnt. Am I missing something? here is what I have so far.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Athlete *athlete = (Athlete *)[athleteArray objectAtIndex:indexPath.row];
AthleteDetail *athleteDetail= [self.storyboard instantiateViewControllerWithIdentifier:#"showAthlete"];
athleteDetail.firstDetailTextField.text = athlete.first;
[self.navigationController pushViewController:athleteDetail animated:YES];
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:#"showAthlete"]){
//prepare
}
}
UITableView has - (NSIndexPath *)indexPathForSelectedRow method. Use it to get index of selected row.
You'll have sth like:
NSIndexPath *index = [self.yourTableView indexPathForSelectedRow];
NSUInteger currentRow = [index row];
YourDataObject * d = // take out data from your model using currentRow
YourDetailViewController *vc = [segue destinationViewController];
// pass your data to detailViewController
[vc setData:d];
Related
I'm having an issue with my app.
I have 3 View controllers, let's name them Oil, App and Prop . Those 3 View Controllers are embed in Navigation controllers. And in those View Controllers I got 3 table view.
So from Up to Bottom and Left to Right :
Prop View Controller -> Prop Detail View Controller
Oil View Controller -> Oil Detail View Controller-> Web View Controller
App View Controller-> App Detail View Controller
So in the middle (Oil) Everything works fine, I click on a cell, and the Oil Detail View Controller is displayed, with the information I passed through my Segue.
OilViewController.m :
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *sectionTitle = [aromaSectionTitles objectAtIndex:indexPath.section];
NSArray *sectionAroma = [tableData objectForKey:sectionTitle];
aromaNom = [sectionAroma objectAtIndex:indexPath.row];
[self performSegueWithIdentifier:#"Detail" sender:self];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"Detail"]) {
OilDetailViewController *test = segue.destinationViewController;
test.aromaName = aromaNom;
test.botaniqueName.text = botaniqueName;
}
}
And I'm also performing Segue between Oil Detail View Controller and Web View Controller like this :
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"webView"]) {
NSLog(#"Segue is catched");
WebViewViewController *webView = segue.destinationViewController;
webView.aromaUrl = _aromaName;
}
}
I click on the orange button and it displays the webview.
But now if I do the SAME thing in Prop or App it doesn't work properly.
For example in Prop Detail VC I got a Label that displays the Property selected, but it displays me the View Controller with the label containing the old selected property before displaying me the right property selected in the label. So I have 2 Prop Detail View displayed AND embed in my Navigation Controller.
I made a video of the simulator : http://videobam.com/VwgLx
The code in PropViewController.m :
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *sectionTitle = [aromaPropSectionTitles objectAtIndex:indexPath.section];
NSArray *sectionProp = [propData objectForKey:sectionTitle];
propName = [sectionProp objectAtIndex:indexPath.row];
NSLog(#"prop name = %#", propName);
[self performSegueWithIdentifier:#"PropDetail" sender:self];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"PropDetail"]) {
PropDetailViewController *propView = segue.destinationViewController;
propView.propStr = propName;
NSLog(#"PREPARE FOR SEGUE PROP VIEW CONTROLLER");
}
}
And in PropDetailViewController.m :
- (void)viewDidLoad {
[super viewDidLoad];
self.propLabel.text = _propStr;
NSLog(#"VIEW DID LOAD PROP DETAIL");
// Do any additional setup after loading the view.
}
Finally the logs :
Thanks in advance for your help, I'm stuck with this, and nobody in my team knows iOs .. So i'm alone with this !
So I finally managed to find a proper solution .. I still don't know why it works on Oil and causes problems on other views but still; here is the solution :
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *sectionTitle = [aromaPropSectionTitles objectAtIndex:indexPath.section];
NSArray *sectionProp = [propData objectForKey:sectionTitle];
propName = [sectionProp objectAtIndex:indexPath.row];
NSLog(#"prop name = %#", propName);
[self performSegueWithIdentifier:#"PropDetail" sender:self];
}
Delete the method above. And do everything you do in this method in the prepareForSegue method instead :
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"PropDetail"]) {
PropDetailViewController *propView = segue.destinationViewController;
NSIndexPath *indexPath = [self.propTableView indexPathForSelectedRow];
NSString *sectionTitle = [aromaPropSectionTitles objectAtIndex:indexPath.section];
NSArray *sectionApp = [propData objectForKey:sectionTitle];
NSString *name = [sectionApp objectAtIndex:indexPath.row];
propView.propStr = name;
}
}
Now it works fine ! But it's not logic that it works in a place, and doesn't in an other ..
i have a project which is basically a uitableview populated with a mutable array and has a search bar
now the uitableview has title and subtitle which are populated with different mutable arrays ..
when you tap on a cell (from the view or from the search view) it pushes the title to a new view controller.
i need the subtitle to be pushed also to the new view controller
i tried every thing i know but i had no success
i have attached the project so you can see how its coded and possibly tell me how to fix it
http://ezzati.net/KuwaitFood.zip
please help
Please replace the function below.
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"ShowDetail"]) {
NSString *object = nil;
NSIndexPath *indexPath = nil;
if (self.searchDisplayController.isActive) {
indexPath = [[self.searchDisplayController searchResultsTableView] indexPathForSelectedRow];
object = self.results[indexPath.row];
} else {
indexPath = [self.tableView indexPathForSelectedRow];
object = self.objects[indexPath.row];
}
[[segue destinationViewController] setDetailLabelContents:object];
[[segue destinationViewController] setNumberdetailLabelContents:[sender detailTextLabel].text];
}
}
You have to assign a identifier to the segue (the arrow from your table view controller to the new controller in your storyboard) and then use this function to grab the destination view controller and set it's property with the data you want to send:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:#"identifier"])
{
SecondViewController *vc = [segue destinationViewController];
// get the selected item index
NSInteger index = [self.tableView indexPathForCell:sender].row;
// set the data property for the second view (pass data)
vc.theProperty = [self.data objectAtIndex:index];
}
Now you can find theProperty on your SecondViewController filled with data from the table view controller.
EDIT: I've reviewed your code. for your case do this:
in -tableView: didSelectRowAtIndexPath: change self to indexPath like this:
[self performSegueWithIdentifier:#"ShowDetail" sender:indexPath];
and in prepareForSegue do this:
DetailViewController *vc = [segue destinationViewController];
// get the selected item index
NSInteger index = ((NSIndexPath *)sender).row;
// index of searched object in self.objects
NSInteger trueIndex = [self.objects indexOfObject:[self.results objectAtIndex:index]];
// set the data property for the second view (pass data)
vc.detailLabelContents = [self.objects objectAtIndex:trueIndex];
vc.numberdetailLabelContents = [self.numbers objectAtIndex:trueIndex];
the problem was because you were using index of self.results and applying it to self.objects which was 0, so you were always getting the first object "You Tube"
change the last line of
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
as below
[[segue destinationViewController] setDetailLabelContents:[sender detailTextLabel].text];
I have two table view controllers, one containing all the US states, the other presenting a list of data for the selected state. I have set up a segue in my main storyboard from the view controller (not the cell), and given it an identifier. For reasons beyond the scope of this post, I need to programmatically perform the segue without using the prepareForSegue method.
The source table view controller (AllStatesTableViewController) needs to execute the segue in the didSelectRowAtIndexPath method of the tableview.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
stateID = [statesDict objectForKey:cell.textLabel.text];
DetailTableViewController *destination = [[DetailTableViewController alloc] init];
stateGauges = [[GaugeList alloc] initWithStateIdentifier:stateID andType:nil];
// at this point stateGauges is NOT nil
[destination setStateGauges:stateGauges];
[self performSegueWithIdentifier:#"sgShowStateDetail" sender:self];
}
The segue performs as intended in that it navigates to its destination, but stateGauges is nil in the destination table view controller. It is not nil in the source table view controller. stateGuages is declared as a property in DetailTableViewController. Obviously I am doing something wrong. Any suggestions?
Thanks! V
On your storyboard you need to choose to push your segue from your cell.
and use your prepareForSegue to pass data :
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"showDetail"])
{
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
DetailTableViewController *detailTableViewController = segue.destinationViewController;
// Pass data here
destViewController.stateGauges = stateGauges;
}
}
Have a look here for more information
I ran into this before too. I found that when I let the storyboard handle the segue, it instantiates a new view controller. This is why stateGauges is nil, because you set stateGauges in your programmatically created view controller, not the one the storyboard created. If you won't use prepareForSeque, remove the segue from your AllStatesViewController to your DetailTableViewController in your storyboard. Then programmatically instantiate the storyboard, the view controller, setGauges, then present your view controller. Also, make sure you put "ShowStateDetail" in the "Storyboard ID" field, in the Identity section, on that DetailTableViewController in your storyboard.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
stateID = [statesDict objectForKey:cell.textLabel.text];
DetailTableViewController *destination = [[UIStoryboard storyboardWithName:#"yourStoryBoardName" bundle:[NSBundle mainBundle]] instantiateViewControllerWithIdentifier:#"ShowStateDetail"];
stateGauges = [[GaugeList alloc] initWithStateIdentifier:stateID andType:nil];
[destination setStateGauges:stateGauges];
[self presentViewController:destination animated:YES completion:nil];
}
I have developed an application using a TableView connected to a SQLite database with a search bar and everything works well.
I have a detail view controller that shows me infos about a clicked row. How can I pass a variable from AuthorVC.m to Details.m?
Partial code :
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
NSLog(#"prepareForSegue: %#", segue.identifier);
if ([segue.identifier isEqualToString:#"Details"])
// segue.identifier value here
{
Details *dv = segue.destinationViewController;
dv.labelText.text = author.title;
// author.title = dv.labelText.text ;
// your value to pass
[segue.destinationViewController setLabelText:author.title];
}
}
Do this:
Create property of variable in myDetails to pass data
Suppose i have NSString *strAuthoTitle in myDetails
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
//Depending upon cell index pass your data differently
myDetails *objmyDetails = [myDetails alloc] initWithNib:#"myDetails" bundle:nil] //alloc your controller for navigation
objmyDetails.strAuthoTitle = [yourArrayofAuthorTile objectAtIndex:indexPath.row];
//Simarly other data can be passed
}
As u not mentioned that u were using storyboard so for that u need to create a segue between AuthorVC to Details controlers and use that segue
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
//NSLog(#"prepareForSegue: %#", segue.identifier);
if ([segue.identifier isEqualToString:#"DetailsPass"]) // segue.identifier value here
{
objmyDetails = segue.destinationViewController;
objmyDetails.strText =lblText.text; // your value to pass
//[segue.destinationViewController setStrText:lblText.text];
}
}
lets say you have 2 properties in your detailedVC strName and strDescription...
than before pushing the detailedVC in the stack, you could simple do something like:
detailedVCObject.strName = #"whatever";
detailedVCObject.strDescription = #"whatever";
hope it would help...
With story board
How pass data in seque ios5 storyboard uitableview to detail view
http://kurrytran.blogspot.in/2011/10/ios-5-storyboard-and.html
Without story board
For this you have to access varible in class one let see below example for example on click of table row you have to navigate on another view say root view. So for this define a variable in root view and access this view when you create object in didselect method of table.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
RootViewController *rvController = [[RootViewController alloc] initWithNibName:#"RootViewController" bundle:[NSBundle mainBundle]];
//Increment the Current View
rvController.CurrentLevel += 1;
//Set the title;
rvController.CurrentTitle = [dictionary objectForKey:#"Title"];
//Push the new table view on the stack
[self.navigationController pushViewController:rvController animated:YES];
[rv release]
}
For an IOS project I am using MWFeedParser to essentially create an RSS reader.
I am populating a tableview with the RSS feed and now want to create that segue using story board.
I can't seem to get it working. I'd normally would use didSelectRowAtIndexPath to push the detail view.
Help is much appreciated..
Thanks
This is what I'd normally do:
#pragma mark -
#pragma mark Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// Show detail
DetailTableViewController *detail = [[DetailTableViewController alloc] initWithStyle:UITableViewStyleGrouped];
detail.item = (MWFeedItem *)[itemsToDisplay objectAtIndex:indexPath.row];
[self.navigationController pushViewController:detail animated:YES];
[detail release];
// Deselect
[self.tableView deselectRowAtIndexPath:indexPath animated:YES];
}
I've wired up my views and the segue in Stroyboard. My identifier for the segue in question is: ShowSelectedFeed
You could create a new Master-Detail-Application and use it as a reference. It uses exactly that pattern.
If you have created the segue in the storyboard you want to use prepareForSegue:sender: to pass your data. Something like this:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"showDetail"]) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
NSDate *object = [_objects objectAtIndex:indexPath.row];
[[segue destinationViewController] setDetailItem:object];
}
}
That's directly from the Master-Detail-Application template. Adjust it to your needs