in my AppleTV app, I have a custom UITableViewCell with UITextField inside.
What I'd like to achieve is to be able to focus this text field to enter text in it.
Unfortunately only the cell itself is focussing, I'm not able to focus the text field.
Thanks
The cell is getting focused because it returns YES from canBecomeFocused. If you want something within the cell to become focused, the cell needs to start returning NO from that method. There are two ways to do that: using the table view delegate method, or by subclassing UITableViewCell.
In your table view's delegate, you can implement the method tableView:canFocusRowAtIndexPath: and return NO for the cells that contain text fields.
Or, in your subclass of UITableViewCell, you could override canBecomeFocused to return NO.
Subclass the UITableViewCell and set the preferredFocusedView of the cell to the UITextField.
#interface TableViewCell : UITableViewCell
#property (nonatomic, weak) IBOutlet UITextField *textField;
#end
#implementation TableViewCell
...
- (UIView*)preferredFocusedView {
return self.textField;
}
Related
I have one question regarding UITableViewCell.
I have base class inheriting from UITableViewCell.
In that class I have this:
#property (strong, nonatomic) IBOutlet UILabel *name;
Then I have several cells inheriting from that base class created using xib files.
Now I am adding new cell but in this case I am doing it programatically. My problem is that when I try to set the text for that new cell like this:
[self.name setText:#"My Label"];
Text is not displayed.
How can I fix this?
Thanks and regards
Hi I have two UITableView in a UIView class and are loaded with same custom UITableViewCell. Custom tableview cell contains a UITextField. That means the two UITableView contains a UITextfield of same custom cell. When I select any of that textfield, how do I know which tableView's textfield is selected? Please help me..
UITextField *txt = ----;
txt.superView.superview will give you the required UITableView instance.
To be more clear :
UITableViewCell *cell = txt.superView; // In your case custom cell
UITableView *yourTable = cell.superView;
So i have a custom UITableViewCell which contains three UILabel. The UITableViewCell is such that the UILabel completely cover the cell.
Now i want to detect whenever user taps on the cell. Problem is as the UILabel cover the cell I cannot use UITableView delegate method for detecting touch on the cell.
I thoughout about using gesture recoginzers on the UILabel but then i don't get the index of the touched cell. I also thought about placing a transparent button on top of the cells but here there is also the same problem that i can't get the index of the touched cell.
Can anybody guide me with an approach on how can i accomplish detecting taps with tableView didSelectRowAtIndexPath when UILabel are covering the cell.
Try to set userInteractionEnabled to false in all labels in cell. This will pass touch to the cell and then you can use UITableView delegates. Be sure that cell stays userInteractionEnabled = YES
To get the touch event besides didSelect method try this. In your custom cell class add a block like,
typedef void(^TappedCell)(CustomCell *cell);
and add a property for it,
#property (nonatomic, strong) TappedCell tappedCell;
and on transparent button action
- (IBAction)buttonTapped {
if (self.tappedCell) {
self.tappedCell(self);
}
}
And in cellForRow method
__weak type(self)weakSelf = self;
cell.tappedCell = ^ (CustomCell *tappedCell) {
//Ur actions goes here
//for getting index
NSIndexPath *indexPath = [weakSelf.tableView indexPathForCell:tappedCell];
[weakSelf someActionWithIndexPath:indexPath];
};
It doesnt matter whether UILabel hide your cell or UIImageView hide it. It will automatically detects tableView didSelectRowAtIndexPath. Check it first you wont face any problems. Did you try to implement tableview in detail first
Came up this question and did some quick experiments without no luck.
Basically, I made a simple single view project where the top view controller is a UITableViewController. For simplicity, I set the table view content to be "Static Cells". The table cell was a custom subclass of UITableViewCell, like this
#interface TopTableViewCell : UITableViewCell
#property (strong, nonatomic) IBOutlet UILabel *label;
#property (strong, nonatomic) IBOutlet TableCellBottomView *bottomView;
#end
Both the properties were wired through control dragging. The TableCellBottomView is just a custom subclass of UIView like this
#interface TableCellBottomView : UIView
#end
Now I add a label inside this TableCellBottomView like the following picture showing
Can I wire this bottom label inside to my TableCellBottomView? Control dragging did not work for me here. I certainly could have added it programmatically inside TableCellBottomView.m. But if i could wire it here, it would be quite convenient, since I could also add a lot of other components and arrange them visually. Thanks!
You may set a tag for the label in Xcode and fetch the UILabel based on the tag wherever you need it:
If you use dynamic cells, you can do this in tableView:cellForRowAtIndexPath:. Alternatively wire the cell to a property and then use that property to fetch it:
((UILabel*)[cell viewWithTag:1]).text = #"Some text";
I don't know why Xcode won't allow you to drag from your label to the bottom view .h file, but you can do it another way. Add the IBOutlet property to the .h file, then drag from the littler open circle to the left of the #property to your label in the storyboard, and that should work.
I have a custom static UITableViewCell that I want to look exactly the same as a right detail cell (UILabel on the left, UILabel on the right), except I want the right UILabel to be an editable UITextField. Since I want to use this cell in multiple view controllers in my storyboard, I decided the best option would be to create a MyEditableTableViewCell.xib file, along with corresponding *.h,m files. I have two public properties in MyEditableTableViewCell.h:
#property (weak, nonatomic) IBOutlet UILabel *textLabel;
#property (weak, nonatomic) IBOutlet UITextField *detailTextField;
These IBOutlets are connected to the UILabel and UITextField in the .xib file. In my storyboard, where I have a custom UITableViewController subclass, I change the class of the necessary UITableViewCell to MyEditableTableViewCell. I have a property in my view controller that is:
#property (weak, nonatomic) IBOutlet MyEditableTableViewCell *myCell;
However, when I run the app, the cell appears as simply a blank cell. Running some checks on it, I see that [myCell isKindOfClass:[MyEditableTableViewCell class]] returns true. However, the UITextField never seems to get instantiated. When I try to alter myCell.detailTextField.text, nothing happens, and myCell.detailTextField appears to be nil.
Any help would be appreciated!
How are you creating instances of MyEditableTableViewCell? My guess is you're doing [[MyEditableTableViewCell alloc] init] instead of loading them from the nib.
You don't need that property in your view controller. You need to register your cell nib with the table view using -[UITableView registerNib:forCellReuseIdentifier:]. Do that in your viewDidLoad. Then, when you send dequeueReusableCellWithIdentifier: to the table view, it will instantiate the nib, creating a MyEditableTableViewCell, and return it to you.
UPDATE
If you're laying out static cells in a storyboard, using a xib to lay out a cell is somewhat difficult. The simplest thing to do is simply lay out the cell's subviews in the storyboard. You can copy and paste the subviews to each cell if you have a few of the same type.
If you really want to use a xib, the easiest way is to structure your cell's view hierarchy like this:
MyEditableTableViewCell (in storyboard)
|
+- cell's content view (created automatically by UIKit)
|
+- UIView (top-level view of the xib)
|
+- UILabel (textLabel)
|
+- UITextField (detailTextField)
So you set the cell class in the storyboard to MyEditableTableViewCell. Then you create your xib. You set your xib File's Owner class to MyEditableTableViewCell. The xib does not contain a MyEditableTableViewCell. The top-level view of the xib is just a plain UIView, containing the subviews (the label and the text field).
In -[MyEditableTableViewCell initWithCoder:], after doing self = [super initWithCoder:aDecoder], instantiate the xib, passing self (the cell) as the xib file's owner. The cell can have outlets connected to the label and the text field in the xib.
After instantiating the xib, add the top-level view from the xib as a subview of self.contentView. If you're using auto layout, create constraints betwixt the top-level view and the content view. Otherwise, set the top-level view's frame to the content view's bounds and set the autoresizing mask to UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight.
Although a static table view will not fetch your cell from the nib, it will still call cellForRowAtIndexPath. There you can dequeue and return your fully unarchived custom cell. Properties on the custom cell that were set in IB, can be fetched by calling super on cellForRowAtIndexPath:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// get an empty cell with properties retained from IB
UITableViewCell *sup = [super tableView:tableView cellForRowAtIndexPath:indexPath];
if ([sup isKindOfClass:[MyCustomCell class]]) {
// fetch a fully unarchived cell
MyCustomCell *cell = [self.tableView dequeueReusableCellWithIdentifier:#"foo" forIndexPath:indexPath];
// copy properties over...
[cell copyPropertiesFromCell:(MyCustomCell *)sup];
return cell;
}
return sup;
}
Depending on the situation, this might actually be easier than to mess with IB objects.