I want a tableview inside another tableviewCell like the following image.It shows one complete cell with a few details and a tableview. How can i do this?I was following this link Link.This is an old code .It is using xibs.I dont have any idea where to set the delegate for the inner tableview.Please help.Any suggestion will be realy helpfull.
My first idea would be:
Subclass UITableViewCell ("MainTableViewCell") and extend it with UITableViewDelegate and UITableViewDatasource.
Next to all the properties you need in "MainTableViewCell" add a TableView "tableViewFilms" and an array "films" for the Films. Also don't forget to add the datasource methods for a tableview to the implementation file.
To easily setup a cell I add a setup-method to the header-file. Which can be called once the cell is instantiated. You can modify it as you want, give it as many parameters as you want and in the implementation (see step 4) set datasource and delegate of your inner tableview.
- (void)setupCellWithDictionary:(NSDictionary *)dict AndArray:(NSArray *)filmsForInnerTable;
You can call this method in your datasource method, once a cell is instantiated:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
MainTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"MainTableViewCell" forIndexPath:indexPath];
NSDictionary *dict = (NSDictionary *) allDataDictionaries[indexPath.row];
[cell setupCellWithDictionary:dict AndArray:filmsForInnerTable];
return cell;
}
Subclass UITableViewCell another time: "FilmTableViewCell"
When setting up the a Cell of "MainTableViewCell", set the delegate and the datasource of "tableViewFilms" to self (object of "MainTableViewCell").
- (void)setupCellWithDictionary:(NSDictionary *)dict AndArray:(NSArray *)filmsForInnerTable{
self.films = filmsForInnerTable;
self.tableViewFilms.dataSource = self;
self.tableViewFilms.delegate = self;
[self.tableView reload];
//more instructions
}
Populate the tableview with the data from the array "films" using "FilmTableViewCells".
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
FilmTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"FilmTableViewCell" forIndexPath:indexPath];
Film *film = (Film*)films[indexPath.row];
[cell setupCellWithFilm:film];
return cell;
}
Hope this helps.
Don't forget to use Outlets, the method definitions and to set the reuse-identifiers for the cells!
Check my answer in this ios 8 Swift - TableView with embedded CollectionView. You have replace that UICollectionView with UITableView.
Everything else is pretty much the same. Its just a head start with UITableView and UICollectionView created programmatically.
I can change it accordingly if you don't understand.
Related
I am creating a tableView which has collectionView inside.
what I did :
1. Created a table view inside a controller.
2. created a custom tableViewCell with collectionView inside of that and providing it with tag
3. Created a custom collectionViewcell.
Now i made controller the delegate and datasource for both collectionView and tableView.
Now tableView should have multiple tableViewcells and each tableViewCell has CollectionView
One tableViewCell has one section.
Problem :-
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
self.arrayModel = self.SlotsArray[indexPath.section];
}
But here is a catch : lets say my screen size shows two tableViewcell, then all methods of tableCells are called first and then all methods of collectionView are called instead i want that after 1st section of tableViewcell is created , it should call collectionView methods and create it. then go to tableView method make 2nd section and then create its collectionView.
Is there away to do this.
Somewhere i read on net thet i will have to subclass CollectionView and add a property index and then while setting viewcontroller as delegate and datasource , set index also.
But i have created CollectionView By nib and adding it to the tableCell class by "TAG"
self.imageCollectionView = [self.contentView viewWithTag:2511];
Can you tell how can i achieve this?
In your case, you should have one table view, having cells. Each cell will have a collection view inside it.
Number of table view cells will equal to the count of your data-source. As we all know, table view cell will be created one by one and assign each cell a data source which will be used to fill your collection view (which is inside each cell).
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
CategoryCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifierCategory forIndexPath:indexPath];
NSArray *arrVideos = [parentArray objectAtIndex:indexPath.row];
[cell setCollectionData:arrVideos];
return cell;
}
Now, inside that table view cell class, implement setCollectionData method to fill its collection view:
- (void)setCollectionData:(NSArray *)collectionData
{
self.arrCollectionData = collectionData;
[self.yourCollectioView reloadData];
}
Now, each collection cell would be feed from this array:
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
VideoCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kCellIdentifierVideo forIndexPath:indexPath];
NSDictionary *_video = [self.arrCollectionData objectAtIndex:[indexPath row]];
// Use this dictionary
[cell.lblVideoTitle setText:_video.title];
––––––––––
––––––––––
return cell;
}
Refer following image:
Hope it helps you !!!
You can take a look on this, surely it will help you to implement horizontal scrolling collection view inside uitableviewcell.
https://github.com/ThornTechPublic/HorizontalScrollingCollectionView/blob/master/GithubImages/videoGrid.gif
https://github.com/agusso/ASOXScrollTableViewCell
I am using a custom cell class in a tableview controller.
When I include a statement in the tableviewcontroller in cellForRowAtIndexPath NSLog(#"method called"): it does not seem to get called.
Is it possible that this method is not called when you have a custom cell?
Edit:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"cell for row at index path called");
NSDictionary *item= [self.getItems objectAtIndex:indexPath.row];
//This sets place in storyboard VC
IDTVCell *cell = [self.tableView dequeueReusableCellWithIdentifier:#"Cell"];
cell.item = item;
if (cell == nil) {
cell = [[IDTVCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:#"Cell"];
}
return cell;
}
cellForRowAtIndexPath is not called if no rows are returned.
-tableView:cellForRowAtIndexPath: is not getting called
That is what happened in my case.
It can also not get returned if you reload table on wrong thread and in certain other scenarios.
cellForRowAtIndexPath: not called
However, a custom cell per se does not cause this..
To answer your question - Yes, it is.
There could be n-number of reasons why cellForRowAtIndexPath: is not getting called. This may be because delegate / dataSource is not set or UITableView frame is not set... etc. etc.
You should easily find a solution with more online research and closure look at your code.
I have a UITableView with a cell that has two labels in it. The table view is linked to the dataSource and delegate, the labels in the cell are linked to an IBOutlet, what not. It looks to me like this should work, but this code below is not running so the Cell or labels are not populated with text. Any ideas? Or anything I'm missing?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"theLabelCell";
CustomClassCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
CustomClassText *customText = _arrayThatHasText[indexPath.row];
if (![self isSelectionMode]) {
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
cell.TitleLabel.text = customText.firstLabel;
cell.TextLabel.text = customText.secondLabel;
return cell;
}
Did you remember to also register the cell identifier for reuse?
- (void)viewDidLoad
{
[super viewDidLoad];
[self.tableView registerNib:[UINib nibWithNibName:#"CustomClassCell" bundle:nil] forCellReuseIdentifier:#"theLabelCell"];
}
If you are not seeing any cells, then check whether numberofSections and numberOfRowsInSection delegate methods are not returning 0
When does your _arrayThatHasText get populated? The issue might very well be that the data source (_arrayThatHasText) is getting instantiated before the numberofSections and numberOfRowsInSection delegate methods are being called and then after these methods are called the data source is being populated with actual data -> which would result in the 0 values in the delegate methods as you are experiencing.
You might want to try putting a [self.tableView reloadData] call at the end of ViewWillAppear or in ViewDidAppear method and see if that helps.
I have created .h and .m files for UITableView called mainTableViewgm.h and mainTableViewgm.m resp. and I am calling -initWithFrame: method from my main view controller to this mainTableViewgm.m implementation file
[[mainTableViewgm alloc]initWithFrame:tableViewOne.frame]
Note that this tableview is in my main view controller. But I have created separate files for the tableView and have also set the custom class to mainTableViewgm in storyboard.
the -initWithFrame: methods appears as follows
- (id)initWithFrame:(CGRect)frame
{
//NSLog(#"kource data");
self = [super initWithFrame:frame];
if (self)
{
[self setDelegate:self];
[self setDataSource:self];
[self tableView:self cellForRowAtIndexPath:0];
[self tableView:self numberOfRowsInSection:1];
// Initialization code
}
return self;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSLog(#"kource data");
return 1;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"kource data2");
UITableViewCell*cellOne =[[UITableViewCell alloc]init];
cellOne.detailTextLabel.text=#"text did appear";
return cellOne;
}
the -initWithFrame: is being called fine along with the 'if (self)' block in this method. But the problem is numberOfRowsInSection: and cellForRowAtIndexPath: are not being automatically called here . kource data/kource data2 never appear in log. What do I do to load the table? Are the delegate/datasource being set incorrectly?
I must mention that I have also set the UITableViewDelegate and UITableviewDataSource protocols:
#interface mainTableViewgm : UITableView <UITableViewDelegate,UITableViewDataSource>
#end
Help will be much appreciated. Thank you.
Your tableview is not loaded when the controller is initializing, so you cannot do that in the init methods. You have to move your code to the viewDidLoad method.
Also you are not setting the delegate and datasource on the tableview object (probably a type, you are setting them on the view controller). It should look like this:
- (void)viewDidLoad:(BOOL)animated {
[super viewDidLoad:animated];
[self.tableView setDelegate:self];
[self.tableView setDataSource:self]; // <- This will trigger the tableview to (re)load it's data
}
Next thing is to implement the UITableViewDataSource methods correctly. UITableViewCell *cellOne =[[UITableViewCell alloc] init]; is not returning a valid cell object. You should use at least initWithStyle:. And take a look how to use dequeueReusableCellWithIdentifier:forIndexPath:. A typical implementation would look like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
// Reuse/create cell
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Update cell contents
cell.textLabel.text = #"Your text here";
cell.detailTextLabel.text=#"text did appear";
return cell;
}
I can't believe I've been doing XCode programming for two years, and still hit this issue.
I had the same problem with XCode 6.1 - I was setting my UITableView's delegate & dataSource in the viewWillAppear function, but none of the delegate functions were kicking in.
However, if I right-clicked on the UITableView on the Storyboard, the circles for delegate and dataSource were empty.
The solution, then, is to hold down the CTRL key, and drag from each of these circles up to the name of your UIView which contains your UITableView:
After doing this, my UITableView happily populated itself.
(So, we're upto v6.1 of XCode now are we ? Do you think Apple ever going to make this thing, you know, friendly...? I would quite like to add a Bookmark in my code... that'd be a nice feature.)
So I am trying to display horizontally scrollable collection view inside tableviewcell. the code i am using is
(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
UICollectionViewController *cv = [self.storyboard instantiateViewControllerWithIdentifier:#"collectionViewID"];
cv.view.frame = cell.contentView.bounds;
[self addChildViewController:cv];
[cell.contentView addSubview:cv.view];
[cv didMoveToParentViewController:self];
return cell;
}
I am getting error: Object can not be nil. I'd appreciate if someone can help me out understanding the error.
I have done this in my app.
I found it much easier to subclass UITableViewCell. The I could put all the UICollectionView setup and the UICollectionView datasource and delegate inside the code for the cell.
I then provided one public property of type NSArray which I pass into the cell. The cell then uses this array as the datasource for the UICollectionView that it owns itself.
Made it a lot easier to manage.
check your UICollectionViewControlle's attribute inspector for identifier value {collectionViewID}
EDIT
[self addChildViewController:cv]; --> I think you want to add cv to the cell, isn't you?