I'm creating a Form with UITableView, I want that when i click over any part of my row, get the focus on the textfield so I can write on it. Right now to focus on the textfield (yellow space) i have to click only over the textfield (see image). Name is the title (not editable)
Thanks a lot
Say you have a textField named myTextField that you want to have focused when selecting the first row in the table.
Do this in your didSelectRowAtIndexPath: method
if (indexPath.row == 0) {
[myTextField becomeFirstResponder];
}
In -didSelectRowAtIndexPath of the row, call [correspondingTextField becomeFirstResponder];
You can make the textbox as "becomefirstreponder" in didselectrow in case you have it in a table view.
If you set your delegate properly, this is the delegate method which is fired when user click over any rows.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
So, in this method you are going to use becomeFirstResponder method to get the focus.
[yourTextField becomeFirstResponder ];
Related
If you have used Messages application in iOS, you know how we could invoke UITableViewCellAccessoryCheckmark in any message through edit button and then select each bubble/cell for forward or deletion purpose.
I'm trying to do the same in my application. I can tap on edit and UITableViewCellAcessoryCheckMark is shown, but I can't select the cells using it. What more do I need to implement?
Any help would be appreciated. Here is the code -
- (void)viewDidLoad
{
[super viewDidLoad];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
return UITableViewCellAccessoryCheckmark;
}
For a table view as shown in the picture, where one or more cells can be selected with a checkmark symbol, you have to set allowsMultipleSelectionDuringEditing = YES on the table view. This can be done either in viewDidLoad with
self.tableView.allowsMultipleSelectionDuringEditing = YES
or in the Attributes Inspector of the table view in the NIB/Storyboard file by setting "Editing" to "Multiple Selection During Editing".
The tableView:editingStyleForRowAtIndexPath: method is not needed for this.
(And btw your method returns UITableViewCellAccessoryCheckmark which is a UITableViewCellAccessoryType and not a UITableViewCellEditingStyle.)
I have a table view in which the cells are built differently depending on whether the table is editing or not. Specifically, the selection style is none when in edit mode and blue when not in edit mode.
When I transition from one to the other, I noticed that some of the cells are not updated. A quick bit of logging tells me that even though the cells' appearance changes quite drastically (accessory views are added/removed correctly for example) the table view does not refresh the selection style (nor for that matter the text).
What is going on here? Are only some attributes of the cell updated when setEditing is called? Presumably only those with a specific method allowing allocation of a separate view style (for example the EditingAccessoryType)? I guess I would benefit from a EditingSelectionStyle.
How should I resolve it? By customizing setEditing to change the selectionStyle for each cell? I'm not even sure how I would iterate through the table view to do this. reloadData isn't an option because of some animation that I am using.
I found that customizing setEditing: to iterate through the visible cells and setting the selectionStyle for each to work ok.
- (void)setEditing:(BOOL)editing animated:(BOOL)animated{
[super setEditing:editing animated:animated];
for (UITableViewCell *cell in [self.tableView visibleCells]) {
NSIndexPath *path = [self.tableView indexPathForCell:cell];
cell.selectionStyle = (self.editing && (path.row > 1 || path.section == 0)) ? UITableViewCellSelectionStyleNone : UITableViewCellSelectionStyleBlue;
}
}
If you look at the UITableViewDelegate documentation you will see a that there are five methods to customize the editing behavior. There is also the method
- (BOOL)tableView:(UITableView *)tableView
canEditRowAtIndexPath:(NSIndexPath *)indexPath
in the UITableViewDataSource documentation that will be called on each cell before you go into editing mode. The same is true for
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView
editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
that will get called for all cells that are editable. If you want to change the way the cells look you could do it in either of these. (Not implementing canEditRow.. assumes all rows are editable.)
Also note that there may be other ways to enter editing mode such as swiping on a cell, in which case
- (void)tableView:(UITableView *)tableView
willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
will be called for the cell that you swiped on:
When entering this "swipe to delete" editing mode, the table view sends a tableView:willBeginEditingRowAtIndexPath: message to the delegate to allow it to adjust its user interface.
This works on Swift 2.3, just overwriting the setEditing method in your custom cell subclass:
class MyCell: UITableViewCell {
override func setEditing(editing: Bool, animated: Bool) {
super.setEditing(editing, animated: animated)
//Place your code here...
}
}
I have a core data/ uitableview based app. Actually 80% of the code so far is equal to the Apple Sample app CoreDataRecipes. My problem is that when I enter the edit mode (by pushing the edit button), there are no "delete badges" on the left side of the rows. Bumper.
The differences in code with CoreDataRecipes:
I have custom UITabelview cell with
a nib file instead of code only.
My Tableview is an Outlet inside my class view. So my class
RecipeListTableViewController is an
UIViewController with Tableview delegates instead of a UITableViewController
What I tried:
The Tableview works fine. There are no linking or delegate issues
I checked if the table actually
enters the edit mode. It does. You
can see that because the "Add" button
is disabled.
I checked if the editingstyle is ok. It should be by default but to make sure I added:
(UITableViewCellEditingStyle)tableView:(UITableView*)tableVieweditingStyleForRowAtIndexPath(NSIndexPath*)indexPath {return UITableViewCellEditingStyleDelete;}
I checked if the delete icons where not behind my cellview. There are not. I now think that the cell behaviour of moving to the right is handled by iOS.
When I swipe the cell, the right delete button appears and works as it should
I tried to build the behaviour my self with a layoutSubviews. Nothing changed when entering the edit mode. But when I swipe, now I see my subview in one row:
Anyone any ideas? It must be something simple.
Make sure that
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
If this is not set to return YES then the badges will not be enabled. The default is set to return NO
I think you have not added the line
tableView.editing=YES on clicking the Edit button
Try by setting it!
Since yours is a UIViewController, the tableview doesnt get the setEditing call. Just add:
- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
[super setEditing:editing animated:animated];
[self.tv setEditing:editing animated:YES];
}
Make sure you have setup the outlet/ delegate/ datasource
then these:
-(void)editButtonTapped
{
[self.tableView setEditing:YES animated:YES];
}
-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
return UITableViewCellEditingStyleDelete;
}
In my application I have this requirement that first tap on custom cell of uitableview with a label in it should expand it and second should contract it. I'm able to expand and contract cell and expand label inside cell, but not able to contract the label on second tap.
I'm using this function
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
if( selected == YES ) {
[self expandRow];
}
else {
[self contractRow];
}
height = [lblFeed frame].size.height + 75;
}
expandRow expands the label and contractRow contracts it. I'm perplexed as for how many rows this function gets called. It doesn't get called only for the cell tapped, it gets called more number of times for single tap on single cell may be for other cells but I'm not getting which rows.
This' really urgent.
Can anybody please help?
Tapping a selected row doesn't cause it to be deselected. When a cell gets selected, it stays selected until deselectRowAtIndexPath:animated: gets called on its table. That's why your method isn't getting called for the second tap.
In an MVC architecture like UIKit, it's recommended that you handle user interactions in your controller classes. It would be appropriate to override -[UITableViewCell setSelected:animated:] if all you were doing was customizing the way the view represents a selected cell, but in this case your expand/contract toggle behavior would require a change in the way UITableView selects and deselects its cells.
You could subclass UITableView and implement this toggle behavior yourself, or you can leave UITableView alone and handle it all at the UIViewController level by doing something like this:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if ([self.expandedIndexPath isEqual:indexPath]) {
[(YourCustomCell *)[self tableView:tableView cellForRowAtIndexPath:indexPath] contractRow];
self.expandedIndexPath = nil;
}
else {
if (self.expandedIndexPath) {
[(YourCustomCell *)[self tableView:tableView cellForRowAtIndexPath:self.expandedIndexPath] contractRow];
}
[(YourCustomCell *)[self tableView:tableView cellForRowAtIndexPath:indexPath] expandRow];
self.expandedIndexPath = indexPath;
}
[tableView deselectRowAtIndexPath:indexPath animated:NO];
}
I would suggest that you don't add your functionality on top of the selected property of the cell, which has slightly different behaviour than you expect.
Just add your own BOOL expanded property, and see how that works. You should probably call it from the UITableView delegate methods, too.
I am writing a "tweetie 2" like swipe functionality, but have run into what I hope is the last stumbling block.
When a user swipes across a table row the "controls" view animates as expected, but when the row is selectd, didSelectRowAtIndexPath is fired off. The desired result is for when the "controls" view is visible to disable the didSelectRowAtIndexPath method or for a lack of a better phrase...stop the responder chain for continuing past the "controls" view.
The uitouch delegate methods are used/being called in the custom uitablviewcell.
What about setting/unsetting the value of allowsSelection in UITableView as needed?
A bit of logic should do the job here. Let's say you add this property to your UITableViewController subclass:
NSIndexPath *indexPathForCellInUtilityMode;
When the user triggers the cell's utility view, your cell does this:
NSIndexPath *cellIndexPath = [parentViewController.tableView indexPathForCell:self];
parentViewController.indexPathForCellInUtilityMode = cellIndexPath;
Then:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if ([indexPath compare:indexPathForCellInUtilityMode] != NSOrderedSame) {
//Do whatever you're normally doing in this method.
}
So you'll disable selection for the affected cell while still allowing the user to interact with other visible cells.