I have an app in portrait, in my View Controller (UIViewController, not a UITableViewController) there is a table (UITableView) that only occupies half the screen.
I set the delegate and datasource of my table view to my view controller.
Now, I would like to show a detail view when i select any cell of my table. Here is what I tried but nothing appears:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"SELECTED");
//ChangeView
DetailViewController *dvController = [[DetailViewController alloc]
initWithNibName:#"DetailViewController" bundle:nil];
[self.navigationController pushViewController:dvController animated:YES];
dvController = nil;
}
Any idea? Is this solution better than a popup solution?
You Should check your tableview in nib file it datasource and delegate is connected or not?
just connect both with file owner.
and if you are using uiview controller then use present model view controller not push modelview controller.
DetailViewController *dvc=[[DetailViewController alloc]initWithNibName:#"DetailViewController" bundle:nil];
[self presentModalViewController:dvc animated:YES];
Put [NSBundle mainBundle] in place of nil. Hope it helps. Tell me what happens!
Also replace dvController=nil; with [dvController release];
EDIT:
Replace ur init function with this one:
-(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
return self;
}
initialize navigation controller. becauze some time it is due to ui component which has not initialized. but remember that you may have to face some other UI issues
You should check if didSelectRowAtIndexPath is really called or not when you select a table cell (of not, your delegate may not be set correctly), then if
DetailViewController *dvController = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:nil];
returns nil or something meaningful with a debugger, trying to close in on the problem. Also, #M.A.Khan was right, you should remove
dvController = nil;
and replace it with
[dvController release];
giving up the reference in your main view.
Edit:
Your code asumes that beneath your UIViewController, there is a UINavigationController because you're using [self.navigationController pushViewController]. If there isn't, no wonder your view does not get pushed onto something that doesn't exist.
is the viewcontroller with tableview in a navigationcontroller?if not then first you have to create a navigationcontroller with the current viewcontroller as the rootviewcontroller.then try this code u are using now
Related
I'm trying to populate UITextFields inside a UITableViewController with a click of a cell. So, I created an init method like:
- (id)initWithObjetoFormulario:(ObjetoFormularioGerenciador *)umObjeto
{
self = [super init];
if(self){
self.objetoFormulario = umObjeto;
}
return self;
}
In my ViewDidLoad I put the line if(self.objetoFormulario){ and after that link the UITextFields to my Object. I don't think there's anything wrong at this point.
So, my Second TableViewController is a SearchDisplayController, it finds the Data I need and at didSelectRowAtIndexPath I have:
ObjetoFormularioGerenciador *objeto = [[ObjetoFormularioGerenciador alloc] init];
[objeto RecebeArrayComDadosECriaObjetoFormularioGerenciador:_arrayComDados eEmail: [searchResults objectAtIndex:indexPath.row]];
GerenciarSeriesTableViewController *gerenciador = [[GerenciarSeriesTableViewController alloc] initWithObjetoFormulario:objeto];
[self.navigationController pushViewController:gerenciador animated:NO];
As I don't have the actual objects in my cells, I call a method to retrieve the object according to the cell entry, that is working as well, now, it opens a blank TableView when I click the cell. It should go Back to my tableView with static Cells containing UITextFields and populate them.
When I use this code:
ObjetoFormularioGerenciador *objeto = [[ObjetoFormularioGerenciador alloc] init];
[objeto RecebeArrayComDadosECriaObjetoFormularioGerenciador:_arrayComDados eEmail:[searchResults objectAtIndex:indexPath.row]];
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
GerenciarSeriesTableViewController *gerenciador = [sb instantiateViewControllerWithIdentifier:#"GerenciarSeriesTableViewController"];
[self.navigationController pushViewController:gerenciador animated:NO];
It does open the TableView I want, but it doesn't populate the UITextFields as I didn't pass any object.
Thanks.
Yes, you really don't generally have custom init methods for view controllers, but rather rely upon the standard ones, and then once the view controller has been instantiated, you'd just set the property then, e.g.:
ObjetoFormularioGerenciador *objeto = ... // create and configure objeto
GerenciarSeriesTableViewController *gerenciador = [self.storyboard instantiateViewControllerWithIdentifier:#"GerenciarSeriesTableViewController"];
gerenciador.objetoFormulario = objeto;
[self.navigationController pushViewController:gerenciador animated:NO];
You can also have a segue between the two view controllers, give it an identifier, and then call [self performSegueWithIdentifier:...], and then set the objetoFormulario in the prepareForSegue method. But the above technique should work fine, too.
I created a custom tableview cell that gets displayed in my tableview. Upon user tapping the cell, I would like to create a flip horizontal transition to a new view controller. How to do this either using Core Animation or UIView?
Sorry I am a newbie can't find the right way to do it anywhere.
Thank you in advance.
I guess You are talking about this.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Create the next view controller.
DetailViewController *detail= [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:nil];
[detail setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
[self presentViewController:detail animated:YES completion:nil];
}
For Dismiss:
-(IBAction)close:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
}
write this method in DetailViewController and call this method to back.
I want to reload data of UITableview from another UIView.
(the UITableview is in ListNoteViewController)
the call I do from DetailViewController (the other uiview) is :
ListNoteViewController *controller = [[ListNoteViewController alloc] initWithNibName:#"ListNoteViewController" bundle:[NSBundle mainBundle]];
[controller.TableNotes reloadData];
but nothing happens. Please, someone can help me ?
Advanced thanks
You can use delegates.
in DetailViewController.h
#property (nonatomic, strong) id Delegate;
In ListNoteViewController.m
-(void)myTVReloadMethod {
[myTable reloadData];
}
And when you are going to DetailViewController
DetailViewController *dvc = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:[NSBundle mainBundle]];
dvc.Delegate = self;
[self.navigationController pushViewController:dvc animated: yes];
In any method in DetailViewController
[delegate performSelector:#selector(myTVReloadMethod) withObject:nil];
Nothing will happen, because you are trying to reload a tableview which is not yet created!
The UI elements like UITableView, UILabel etc will be created only after the view of the particular UIViewController is loaded. Here you have just initialised the viewcontroller only.
So you should write this in
-(void)viewDidAppear:(BOOL)animated
{
[self.TableNotes reloadData];
}
OR
-(void)viewWillAppear:(BOOL)animated
{
[self.TableNotes reloadData];
}
of your ListNoteViewController.
This is the problem with your code. And in case, if the ListNoteViewController is already in stack,ie, if you have already loaded the same viewcontroller and is now trying to reload the tableview on it, then you can use custom delegates to achieve the same.
you can see how to add a delegate here.
I was wondering how I can load a different view into the detailView from rootview..
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 0) {
SecondViewController *svc = [[SecondViewController alloc] init];
//[self.navigationController pushViewController:svc animated:YES];
}
}
The splitviewcontroller has an array of 2 views one is root view and another one is detail view,and you can change the views in this array. If you alloc and init a view and replace it with either of these two then this view will replace the current view in the splitviewcontroller.
Use this code for loading different views for different cells of rootview. Change rootview's didSelectRowAtIndexPath method as follow:
- (void)tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UIViewController *localdetailViewController = nil;
if (indexPath.row==0)
{
DetailViewController *detailView=[[DetailViewController alloc] initWithNibName:#"DetailView" bundle:nil];
localdetailViewController=detailView;
detailView=nil;
}
if (indexPath.row==1)
{
SecondViewController *secondDetailView=[[SecondViewController alloc] initWithNibName:#"SecondDetailViewController" bundle:nil];
localdetailViewController=secondDetailView;
secondDetailView = nil;
}
UINavigationController *navController=[[UINavigationController alloc] init];
[navController pushViewController:localdetailViewController animated:YES];
YourSplitViewAppDelegate *delegate=[[UIApplication sharedApplication] delegate];
NSArray *viewControllers=[[NSArray alloc] initWithObjects:[delegate.splitViewController.viewControllers objectAtIndex:0],navController,nil];
delegate.splitViewController.viewControllers = viewControllers;
[localdetailViewController release];
[navController release];
}
My solution is using Using Xcode 7.1.1 for a universal app, using Storyboards, Auto Layout and Size Classes, building for iOS 9...
I used a version of Midhun MP's answer... within the current/original (not replacement/new/second) detail view controller's viewDidLoad method:
obviously first import the correct header file for your controller:
#import "NEW_DetailViewController.h"
then within viewDidLoad method:
- (void)viewDidLoad {
[super viewDidLoad];
<<OTHER_CODE>>
if (<<INSERT_THE_LOGIC_YOU_NEED_TO_TRIGGER_THE_REPLACEMENT_DETAIL_VC>>) {
NEW_DetailViewController *viewNewDetailVC = [[NEW_DetailViewController alloc] initWithNibName:#"NEW_DetailViewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] init];
[navController pushViewController:viewNewDetailVC animated:YES];
NSArray *arraySplitViewControllers = [[NSArray alloc] initWithObjects:[self.splitViewController.viewControllers objectAtIndex:0],navController,nil];
self.splitViewController.viewControllers = arraySplitViewControllers;
}
}
NOTE I could make this code work without loading a XIB file, building the entire replacement detail VC in code, with [[UIViewController alloc] init] instead of [[NEW_DetailViewController alloc] initWithNibName:#"NEW_DetailViewController" bundle:nil], but was frustrated that I could not make the XIB file load, so I persisted...
I attempted many variations from many different SO answers in attempting to solve this problem of successfully loading a XIB file as the replacement detail view controller in a split view controller.
Finally this answer by Travis M gave me the hint I needed...
Delete all the efforts you have attempted to date to create a new XIB file and subclass of UIViewController!
Create a new file and make it a subclass of UIViewController. See screenshot:
IMPORTANT ensure you check the checkbox "Also create XIB file".
You don't need to modify the new subclass of UIViewController, unless you'd like to code up the contents of the view. I only needed to add in a UILabel for my solution and I did this using Interface Builder.
Make sure you reference the replacement view controller NEW_DetailViewController in code as per my example above.
That's it!
In your XIB file you should end up with the following:
I want to make a table view inside of a table view. I mean how can I make an app that clicking a cell goes to another list of cells to click to go subclass?
Convolution's answer contains a memory leak. Proper code should look like this:
MySecondViewController *secondController = [[MySecondViewController alloc]
initWithNibName: #"SecondViewController" bundle: nil];
if (secondController != nil) {
[self.navigationController pushViewController: secondController animated: YES];
[secondController release];
}
The release is essential. Otherwise you leak memory.
I don't know what you mean by a table view inside of a table view, I think what you want to do is have a hierarchy of table views. You can push another table view onto the stack within the delegate method didSelectRowAtIndexPath.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
MySecondViewController *secondController = [[MySecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
[self.navigationController pushViewController:secondController animated:YES];
}
By implementing this method when you click a cell, it goes to another table view (list of cells).