I have navigate to a new class with view by the below table view delegate method but I get a black screen returned.
#import "NewClass.h"
- (void)tableView: (UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName: #"MainStoryboard" bundle: [NSBundle mainBundle]];
NewClass *new = [storyboard instantiateViewControllerWithIdentifier: #"newDetail"];
new.array = localArray;
[self presentViewController: new animated: YES completion: nil];
}
I have NSLog the array on the new class there and the data is received in the new class, all the storyboard name, identifier tag are correct placed, but I don't know why I still getting a black screen, could anyone help me point out what is the error cause there?
try this code:
- (void)tableView: (UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath
{
UIStoryboard * storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
NewClass * new = [storyboard instantiateViewControllerWithIdentifier:#"newDetail"];
new.array = localArray;
[self.navigationController pushViewController:new animated:YES];
}
It should be,
ViewController *new = [storyboard instantiateViewControllerWithIdentifier: #"newDetail"];
And make sure the id of your view controller is set to newDetail on storyboard
Related
I have a commonViewController to pop up on other viewcontrollers and the commonViewController has a view and a tableview inside it and also some other components. I have populated that view successfully on other viewcontroller pages, but the problem is; when iam trying to navigate to some other viewcontroller pages while iam clicking the rows in commonViewController's tableview.
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 1)
{
EditProfileViewController *nextViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"EPVController"];
[self.navigationController pushViewController:nextViewController animated:YES];
}
}
I have tried both presentViewController and pushViewController but it is not navigating anywhere. What is the issue. Please help me.
Get reference to your storyboard and load viewcontroller using identifier:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"YourStoryboardName" bundle:nil];
EditProfileViewController *nextViewController = [storyboard instantiateViewControllerWithIdentifier:#"EPVController"];
[self.navigationController pushViewController:nextViewController animated:YES];
For pushing a view controller I'm using following code. On tap of UITableViewCell need to push DetailViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row)
{
NSDate *object = self.objects[indexPath.row];
DetailViewController *controller = [DetailViewController new];
[self.navigationController pushViewController:controller animated:YES];
}
}
Now problem is I get a jerk while animating. Refer to screenshot
its because of transparency. just set a background color for your viewcontroller. thats all.
Most probably you're doing something "heavy" on the main thread, while loading DetailViewController.
Could you show us what are you doing in DetailViewController?
I think there is issue with allocating object and pushing same object.
Do the following changes, it will work fine.
Your code :
DetailViewController *controller = [DetailViewController new];
[self.navigationController pushViewController:controller animated:YES];
Replace :
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"Main"
bundle: nil];
MyViewController *controller = (MyViewController*)[mainStoryboard
instantiateViewControllerWithIdentifier: #"<your Storyboard ID>"];
it will work fine at my end.
Hope this help you.
Could somebody explain me what i'm doing wrong in the code below?
I try to pass data from the didSelectRowAtIndexPath method but in the SizeViewController productKey has still value of null
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
SizeViewController *sizeViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"SizeView"];
sizeViewController.title = [self.choosedProducts objectAtIndex:indexPath.row];
sizeViewController.productKey = [self.choosedProductsIds objectAtIndex:indexPath.row];
[[self navigationController]pushViewController:sizeViewController animated:YES];
}
Can u try to get a reference to the storyboard instead of using the self.storyboard property? It is just a guess.
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:[NSBundle mainBundle]];
Also, can u verify in your solution that sizeViewController is not nil?
You are trying to load a view controller from storyboard,So it should be initialised as
SizeViewController* detailViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"SizeViewController storyboard identifier"];
I got the below error:
Application tried to push a nil view controller on target UINavigationController: 0x7b98940.
It is caused when I 'click' a cell of an UITableViewController.
Code:
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
VerifyInfoViewController *verifyInfoVC = [self.storyboard instantiateViewControllerWithIdentifier:#"verifyInfoVC"];
[self.navigationController pushViewController:verifyInfoVC animated:YES];
}
This error means your ViewController has not been allocated properly, and i guess self.storyboard is nil, If yes this means you didn't initialise your master viewController and you can do the below trick:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:[NSBundle mainBundle]];
I am building an app using storyboard. I am using the MFSidemenu library for creating a sidemenu like facebook app. the side menu appears properly but when i tap a cell on the side menu, the menu doesnt go away and it doesnt load another view controller. Please note that i am using storyboard.
Thank you.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:[NSBundle mainBundle]];
AlbumsTableVIewController *AlbumsViewController = [storyboard instantiateViewControllerWithIdentifier:#"Albums"];
AlbumsViewController.title=[NSString stringWithFormat:#"Demo Controller #%d-%d", indexPath.section, indexPath.row];
NSArray *controllers = [NSArray arrayWithObject:AlbumsViewController];
self.sideMenu.navigationController.viewControllers = controllers;
[self.sideMenu setMenuState:MFSideMenuStateClosed];
}
you have to implement delegate method to your MainMenu Controller, because if u place your code like above, it will change your sideMenu not ur MainMenu. i am working with storyboard here. this is my code on my MainMenuController
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:[NSBundle mainBundle]];
UINavigationController *navigationController = (UINavigationController *)self.navigationController;
UIViewController *leftSideMenuViewController = [storyboard instantiateViewControllerWithIdentifier:#"leftSideMenuViewController"];
UITableViewController *SideMenu=(UITableViewController *)leftSideMenuViewController;
SideMenu.delegate=self; //here is the delegate
[MFSideMenu menuWithNavigationController:navigationController
leftSideMenuController:SideMenu
rightSideMenuController:nil];
so you need to hook up with your viewController from here, navigating thru delegate pattern.