I am working on
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (!XAppDelegate.isRegular)
{
if([self shouldReloadWithSubCategory:[NSString stringWithFormat:#"%#",[[categoriesArray objectAtIndex:indexPath.row]objectForKey:#"CategoryId"]]])
{
[KeysArray addObject:categoriesArray];
categoriesArray = [categoriesContainer objectForKey:key];
NSLog(#"%#",categoriesArray);
[tv reloadData];
}
} }
I have a category and sub category. when select on a category, sub category is appeared on same view controller by reloading tableView. I want to see navigation effect when we push a view controller to navigationControoler, but without using another view controller. How can I do this?
There are much more code for this implementation. Too easy create another DetailTableViewController.
But if you want to realize using you rules:
1) I must create any flag that means Common view OR Detail view
2) Create containers for categories and subcategory.
3) Dependency flag load different resource in data source.
4) Reload table view
To get navigation effect, try to push self. If it not resolve you problem - create new object with correct fields.
Related
I've got an UIViewController with 2 tableviews:
1- the main tableview, which is shown in the whole view controller
2- the second viewcontroller, which is loaded in a popup view.
The second tableview is shown on swiping a cell of main tableview.
Depending on which cell is swiped, there are different data in popup view.
I've already loaded the whole data in viewdidload method and stored everything in nsmutablearray, so are ready to be loaded.
My problem is that I don't know how to work with tableview's DataSource, in my project i linked both tableview's datasource to file's owner, but in this way it loads the numberofrows from the main view, and it doesn't take the correct count which should have the second tableview.
So, if in main tableview i have for example 3 elements, and in the second tableview it should load 5 elements, it gives me an error, ('NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index…).
I think that i should link my tableviews to different datasource, even if i really don't know.
I hope to be clear, if you need more info, or a better description, ask me and i'll do it for you.
In the delegate method, you should compare the tableview.
See the example,
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if(tableView == maintableView)
return VALUE_FOR_MAIN_TABLE_DATA;
else
return VALUE_FOR_POP_TABLE_DATA;
}
No Problem
you just set tags to your tables.
[tableView1 setTag:1];
[tableView2 setTag:2];
and then
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
if (tableView.tag == 1) {
return 4;
}
else if (tableView.tag == 2)
{
return 5;
}
}
do similar thing all data source method
You can use one View Controller as an unique data source for multiple table view, but you'll need to check which table view is requesting data using the tableView arguments of the UITableViewDataSource methods.
For example:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (tableView == self.mainTableView)
{
// code for your main table view
}
else
{
// code for your popup table view
}
}
The same instance of a view controller serving as data source/delegate for two tables is technically possible but has a number of traps. One of these is: to which of the two tables does self.view refer?
However, most of the data source protocols hand down a reference to the table. You could use that rerference to determine which table acutally sends the request. But not all methods of the protocol inclulde a reference to the table. And that is where it starts getting tricky.
You are far better off with two distinctive view controllers, one for each table. Establish a protocol between them so that the main view controller can hand down the data to the one in the popup window so that the popup can initialize/load it self with the proper data and can refresh its view when ever the data changes.
You will need to check for the tableview in all your delegate and datasource methods as follows:
if (tableView == mainTable)
{
// code for your main table
}
else if (tableView == popupTable)
{
// code for your popup table
}
You do same for 2 or more table views.
Hope this helps.
You can do it both ways:
Make separate classes as data source for separate tables. Instantiate their objects as datasources for tables and bind them at viewDidLoad method in proper view controller.
Make one datasource for 2 tables which I don't recommend as it is not comply with proper OOAD. You'll have tight coupling this way between view controller and the table which can be cause of trouble in the near future.
You have method - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
in which you can distinguish to which table you are referring:
if (tableView == mainTableView) {
// initialize cell for main table view
}
if (tableView == secondTableView) {
// intialize cell for second table view
}
How can I use more than one UITableView in one ViewController? Is it possible to ause more than one TableView in a page?
Actually i am creating a Application Form, there i have to use objects alternative for combo box.
I choose TableView instead for combo box.
Is this a right method?
Definitely Goku, you can use multiple UITableViews in a single UIViewController.
You just need to condition your both UITableView' in UITableViewDelegete.
For example :
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
if (tableView == yourFirstTableView) {
// <do whatever on first table view>...
} else if (tableView == yourSecondTableView) {
// <do whatever on second table view>...
}
}
Just make sure you set the both delegates for both tables :
yourFirstTableView.delegate = self;
yourSecondTableView.delegate = self;
See this example in case of doubt.
Yes you can have more than one tableview in a UIViewcontroller . You need set tag for each tableview and with respect to you can load data in the tableview .
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if(tableview.tag == 1)
{
} else if (tableview.tag == 2)
{
}
}
Yes you can use more than one UITableView's in a single ViewController. And you can create an application form with it using different sections and using various accessory types .
You can use more than one table view in one controller, just define a different delegate for each UITableView instance. You can define new classes specifically to act as table view delegates, and have your controller create instances of these and set each UITableView's delegate property accordingly.
Yes For Sure you can use more than one tableview in single view controller.
Simply Create tableview in xib or manually.
And in methods of Tableview you can write like this
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
if(tableview==table1){
}else if (tableview ==table2){
}
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if(tableview==table1){
}else if (tableview ==table2){
}
}
I have an application in which I have tableview in which I return 3 rows in the tableview. When I select a particular row in the table view another tableview should open which should display list of items and when I select a particular item the value of that particular item should be set to the textlabel of previous tableview.
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
if (tableView != secondTableview) {
self.secondTableviewArray =[[NSMutableArray alloc]initWithObjects:#"secondfirst",#"secondSecond",nil];
[secondTableview reloadData];
}
}
Pass the second controller (the one that will appear) a weak reference to the first just before showing it. Once the second view controller has appeared and the user has made the selection (you can catch that in (-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;), send a message to the first giving the value selected.
The first view controller, then can store the new value, and even dismiss/pop the second.
This can also be achieved, by writing your own delegate protocol, so the first conforms to it, and is the delegate for the second.
Take NSString in second view and use the property.from the first view to second view set the string and in second view use that String
If you want to open new table view on click of row then you make new xib file and call like as define in below code:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
[tableView deselectRowAtIndexPath:indexPath animated:NO];
XMLBooksViewController * xmlBooksViewController = [[XMLBooksViewController alloc] initWithNibName:#"DetailView" bundle:nil];
XMLBooksAppDelegate * appDelegate = [UIApplication sharedApplication].delegate;
xmlBooksViewController.author = [appDelegate.authors objectAtIndex:indexPath.row];
[self.navigationController pushViewController:xmlBooksViewController animated:YES];
[xmlBooksViewController release];
}
In next file you define another table view, so the list or items comes as table view.
Basically i have a view with just a table view on it and on another tab you can add to this table view. but when you click the tab with the table view in it isnt updating it self, so how would i reload the data in the table view i have tried :
- (void) viewWillAppear: (BOOL) animated
{
[ThirdViewController.tableView reloadData];
}
with no success as i get error Expected ':' before '.' token.
all of the cells are added via
- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
Any help would be great
Looks like ThirdViewController is the name of a class, not an object.
Try just
[tableView reloadData];
You can modify your app in the following way
1 Take a segmentation control above the table view.
2 When the user taps on any of the segment,take separate View Controller which is pushed onto the stack.
Cheers
I have only 1 tableView class but 4 cell class. I'm adding the same tableView to all the viewControllers present in the app. The difference is the type (class,to be precise) of the cell. I want to change the class of cell according to the viewController in which the tableView is present. Also, the cell's content view is drawn in another subclass of the cell's class. Please provide a solution or approach to follow to make this functionality.
Thanks, in advance.
You probably should be using a different table view for each view controller (if you are not already).
Typically, you would also use a different datasource/delegate for each table view (you could use each view controller, for example).
However, if you must use the same class as the datasource/delegate for all four of the table views, tableView:cellForRowAtIndexPath: (and the other delegate methods) give you the table view as the first argument, so you can return the correct cells like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if (tableView == myTableViewOne) {
// dequeue or allocate/init and configure/return the cell for the first table view here
} else if (tableView == myTableViewTwo) {
// dequeue or allocate/init and configure/return the cell for the second table view here
} else if (tableView == myTableViewThree) {
// dequeue or allocate/init and configure/return the cell for the third table view here
} else {
// dequeue or allocate/init and configure/return the cell for the fourth table view here
}
}
Ask the tableView for it's Class name using NSObjects -class method and use that to decide on what cell class to use.