I have a rootTableView with cells that are loaded from an array:
logArray = [[NSArray alloc]initWithObjects:#"John", #"Jack", #"Jill", nil];
When I click a cell, for example the cell called "Jack", it will take me to a sub table for "Jack"
How to I set the title of that sub tableView to "Jack", etc.
Under the tableView delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
NextViewController *nextView = [[NextViewController alloc] initWithNibName:#"NextViewController" bundle:nil];
**nextView.title = [logArray objectAtIndex: indexPath.row];**
//push the nextView here
}
I think you can try using the UITableView section header for this
You need to create a property in your sub tableview that you can pass the name along to. Something like this should be in your didSelectRowAtIndexPath method.
UITableViewCell *currentCell = [self.tableView cellForRowAtIndexPath:indexPath];
MySubtableviewController *mstvc = [[MySubTsbleViewController alloc] init];
mstvc.nameProperty = currentCell.textLabel.text;
[self.navigstiomController pushViewController:mstvc];
Something like that where the nameProperty is declared in your sub tableView controller.
Then in your sub view controller, just set the title in viewDidLoad.
self.title = self.nameProperty;
Hope this helps.
Related
The best answer on stackoverflow for pushing an array to a tableView cell is "start with something easier". I think we can do better than that...
I believe I have everything in place except I can not find the proper way to address getting the data from the rootView. See Below.
The below code pushes an array to DetailView Controller with three cells in a group with "Get Cell Info Here" in top cell. Can someone explain what I need to do to get the actual data into the top cell? Thanks
RootViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
DetailViewController *selectedCell = [[DetailViewController alloc] initWithStyle:UITableViewStyleGrouped];
[self.navigationController pushViewController:selectedCell animated:YES];
}
DetailViewController.h
#interface DetailViewController : UITableViewController {
NSArray *displayCell;
}
#end
DetailViewController.m
- (void)viewWillAppear:(BOOL)animated
{
//Display the selected cell data
displayCell = [[NSArray alloc] initWithObjects:#"Get Cell Info Here", nil];
//Set the title of the navigation bar
self.navigationItem.title = #"wtf";
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] ;
// Make cell unselectable
cell.selectionStyle = UITableViewCellSelectionStyleNone;
NSString *cellText = nil;
switch ( indexPath.row ) {
case 0: {
cellText = [displayCell objectAtIndex:indexPath.row];
break ;
}
case 1: {
break ;
}
case 2: {
break ;
default:
break;
}
}
cell.textLabel.text = cellText;
return cell;
}
Add a property to DetailViewController as follows:
#property (nonatomic, retain) NSArray *passedItems;
Then have root view controller pass the items as follows:
selectedCell.passedItems = passedItems; // passedItems is array in rootview controller
Then you can use passedItems in DetailedViewController.
I have UIViewController that contains NSMutableArray , I want to pass this array to UITableViewController and view it on the table .. how can I do that ??
I mean I want to (pass) NSMutableArray or any Variable from UIViewController to UITableViewController not (create) a table
I want to pass newBooksArray to UITableViewController, I wrote in UIViewController:
mytable.gettedBooks = newBooksArray; // gettedBooks is NSMutableArray in UITableViewController
mytable.try = #"Emyyyyy"; // try is a NSString in UITableViewController
and in UITableViewController in DidloadView i wrote
NSLog(#"Try: %#", try); // out is null
NSLog(#"my getted array count: %d", [gettedBooks count]); // out is 0
any help ???
Creating a UITableView and filling with an array
I created the above tutorial specially for this problem.
There are also more methods you can learn about on the developer documents
Firstly, you want to make sure you have the required delegate calls in your #interface:
#interface RootViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
{
NSMutableArray * feed;
UITableView * tableView;
}
You want something similar to the following in your controller:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [feed count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
cell.textLabel.text = [mutableArray objectAtIndex:indexPath.row];
return cell;
}
numberOfRowsInSection makes sure you actually load the required number of cell rows from your NSMutableArray. And cellForRowAtIndexPath actually loads the content from each row of your NSMutableArray into each row of the UITableView.
For passing it to another controller, don't you want something like this?
UITableViewController *viewController = [[UITableViewController alloc] initWithNibName:#"TableXIB" bundle:nil];
[viewController setGettedBooks:newBooksArray];
[self.navigationController pushViewController:viewController animated:YES];
UITableview tutorial and sample code
Hope,this will help you..enjoy
If you are using a Tab Bar controller, and First View controller is table view controller and second is UIView controller. You can Pass data to Table View controller by followoing code segment. You need to declare variable called arrayData (NSMutableArray) in table view controller and set property (Since we need to access this from another class.) From this arrayData, you need to load data in tableView. In View controller class write following code.
NSArray *viewControllers = [self.tabBarController viewControllers];
MyTableViewController *mTable = [viewControllers objectAtIndex:0];
[mTable SetArrayData:arrayFromViewController];
[mTable.tableView reloadData];
If you are using Navigation controller, you can do
NSArray *viewControllers = [self.navigationController viewControllers];
MyTableViewController *mTable = [viewControllers objectAtIndex:0];
[mTable SetArrayData:arrayFromViewController];
[mTable.tableView reloadData];
Optionally you can use delegates.
I have two UITableViewController classes, MainTableController and SubTableController.
From AppDelegate class I am calling MainTableController class.
At first this class is empty, and there is button named "show list" in this class.
When I click on this button I will go to SubTableController and there I have a list of actions in form of table.
Now if I choose to first cell action then that action name has to come on my first cell of table in MainTableController. But I am not able to print that name in table of MainTableController class.
In SubTableController:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
ActionList * actionListObj = [appDelegate.actionArray objectAtIndex:indexPath.row];
self.chooseActions = actionListObj.actionName;
MainTableController * mainViewController = [[MainTableController alloc] init];
[mainViewController getAction:self.chooseActions];
[self.navigationController dismissModalViewControllerAnimated:YES];
}
In MainTableController:
-(void) viewWillAppear:(BOOL)animated{
[self reloadData];
}
-(void) reloadData{
[self.myTableView reloadData];
}
-(void) getAction: (NSString *) actionChoose{
self.action = actionChoose;
[self reloadData];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell...
cell.textLabel.text = self.action;
return cell;
}
When I debug, in MainTableController I am getting the action in getAction method but in table cell text string is null.
Can anyone please help me regarding this?Where am I going wrong?
You are allocating and initializing a new view controller each time you select a cell in SubTableController.
MainTableController * mainViewController = [[MainTableController alloc] init];
and of course, it isn't the one in place in the navigation stack.
You need to make these two controllers communicate.
I suggest that the sub view controller define a property on the main one, in order to message it when needed.
In SubTableController, add a property and synthesize it :
#property(readwrite, assign) MainViewController *mainViewController;
// and ...
#synthesize mainViewController;
Of course when you push the sub view controller, don't forget to set the property.
// in main view controller
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// alloc/init the sub VC
subVCInstance.mainViewController = self;
[self pushViewController:subVCInstance ......
Now when a row is selected in the sub one, message the main one, without alloc/init a new MainViewController object :
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
ActionList * actionListObj = [appDelegate.actionArray objectAtIndex:indexPath.row];
self.chooseActions = actionListObj.actionName;
//MainTableController * mainViewController = [[MainTableController alloc] init];
[self.mainViewController getAction:self.chooseActions];
[self.navigationController dismissModalViewControllerAnimated:YES];
}
This should work just fine.
In didSelectRowAtIndexPath of the SubTableController class, you are allocating new MainTableController to send the data.
MainTableController * mainViewController = [[MainTableController alloc] init];
[mainViewController getAction:self.chooseActions];
You should not do like that. Because the existing mainview will be different from the newly allocated one. You should use delegate to give back the data. For more info on Protocols and delegates, see here
More example here
I am having an issue pushing my view controller from a tableview that was dropped into a viewController, and not a TableViewController.
I have found a thread on here with a solution here
pushViewController is not pushing
The problem is.. I have done his solution and my view still does not push. I have connected my tableview via ctrl+drag to the view controller and set both the dataSource and delegate. In the post i mentioned, they say the solution was to 'create a referencing outlet from the tableview to the view controller.' But I don't exactly know what that means. So help with that would be good as well. I have followed this tutorial and am stuck on step 9 obviously.
The line of code not triggering is
[self.navigationController pushViewController:facility animated:YES];
My code is as follows...
viewTable methods
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSLog(#"list Size: %#",list);
return [list count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil){
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
CustomerListData *customer = [self.list objectAtIndex:indexPath.row];
cell.textLabel.text = customer.facilityName;
// cell.textLabel.text = #"Detail";
return cell;
}
-(void)setValue:(NSMutableArray*)array
{
//NSMutableArray *newArray = [[NSMutableArray alloc] init];
list = array;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
FacilityMissionListViewController *facility = [self.storyboard instantiateViewControllerWithIdentifier:#"facilityMissionList"];
[self.navigationController pushViewController:facility animated:YES];
//UINavigationController* navController = self.navigationController;
}
the very last commented out line is there to check if navigationcontroller was null. It is not.
From what I have gathered the issue here lies in the fact the table view is inside the view controller and its not a "tableviewcontroller." This method apparently works if that is the case, but some other steps must be taken if not.. but I don't know them.
Thanks in advance.
It sounds like your NavigationController is not set up correctly. Could you post the code that sets it up?
Put a :
NSLog(#"%#", self.navigationController);
in your didSelectRowAtIndexPath method and you'll see if the method is being called and if the navigationController is nil. It might be one of this cases.
Otherwise make sure that the FacilityMissionListViewController is not nil either.
I have a UITableViewController that has data populated from an NSMutableArray called userList. When specific user is selected, it goes to a detail view, and updates the title in the NavBar, but it wont pass the data to update a UILabel in the UIView.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:NO];
//Attempt at a singleton to pass the data
DetailView *details = [[DetailView alloc] init];
details.userNameLbl = [userList objectAtIndex:indexPath.row];
DetailView *detailVC = [[DetailView alloc] initWithNibName:nil bundle:nil];
//This line doesn't pass the data
detailVC.userNameLbl.text = [userList objectAtIndex:indexPath.row];
//This line does update the title in the NavBar
detailVC.navigationItem.title = [userList objectAtIndex:indexPath.row];
[self.navigationController pushViewController:detailVC animated:YES];
[details release];
[detailVC release];
}
Should I be trying to push the data from the table view to the detail view, or have the detail view try to pull the data from the table view?
DetailView.h has the following line that is in fact hooked up in IB.
IBOutlet UILabel *userNameLbl
The userNamelbl isn't instantiated until the view is loaded from the nib file. This doesn't happen immediately at initialisation, but will have happened by the time viewDidLoad is called.
So, you should to declare a property in DetailView to store your title, and then assign that value to userNamelbl.text in the viewDidLoad method.
For example, in your table viewController:
DetailView *detailVC = [[DetailView alloc] initWithNibName:nil bundle:nil];
detailVC.userName = [userList objectAtIndex: indexPath.row];
and in your detail viewController:
- (void) viewDidLoad
{
[super viewDidLoad];
self.userNameLbl.text = self.userName;
}
The viewController's navigationItem property is created when the viewController is initialised, hence you can assign to the navigationItem.title immediately.
Swift code
let detailVC = DetailView(nibName: nil, bundle: nil)
detailVC.userName = userList.objectAtIndex(indexPath.row) as? NSString
and
class DetailView: UIViewController {
#IBOutlet var userNameLbl: UILabel
var userName:NSString?
override func viewDidLoad() {
super.viewDidLoad()
self.userNameLbl.text = self.userName
}
}
Are you mixing UIViews and UIViewControllers? You should have a DetailViewController class that inherits from UIViewController or some sublcass (like UITableViewController); it will have DetailViewController.m and DetailViewController.h files to declare and define your class. It should have a corresponding nib that defines the UIView that the UIViewController loads; it will have a DetailView.xib file.
You can't assign the value to the UILabel directly because UIView hasn't been loaded at the time you need to assign the user name value.
In order to do what you want, you should declare a public property (userName) to "push" the value onto the detail view controller from the master controller. Once the detail view is loaded, it can assign the value from the property to the label and nav bar.
In your master view controller (UITableViewController):
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:NO];
DetailViewController *detailVC = [[DetailView alloc] initWithNibName:#"DetailView" bundle:nil];
detailVC.userName = [userList objectAtIndex:indexPath.row];
[self.navigationController pushViewController:detailVC animated:YES];
[detailVC release];
}
In your detail view controller:
DetailViewController.h
#property (retain) NSString* userName;
#property (nonatomic, retain) IBOutlet UILabel *userNameLbl;
DetailViewController.m
#synthesize userName;
#synthesize userNameLbl;
-(void) viewDidLoad {
[super viewDidLoad];
self.userNameLbl.text = self.userName;
self.navigationItem.title = self.userName;
}
Presumably your DetailView requires the data from your selected row to function?
If so, I'd say the 'correct' approach would be to create a custom init method that passed in the data you required. For example:
[[DetailView alloc] initWithTitle:(NSString *)title text:(NSString *)text]
There's nothing inherently wrong with your approach, but passing the data the view controller requires at its creation is architecturally better (in my opinion, I'm sure someone will disagree!). For example, think of a table view controller - you pass in the table view style in the init method, you don't set it later on. Same for a UIImageView - you have an initWithImage method that lets you set the image at creation.