I am new in iOS and I am facing problem to add multi select table value to text field.
My code is like this
In DidSelectRowAtIndexPath
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
txtactivity.text=[activityarray objectAtIndex:indexPath.row];
lblactivity.text=[NSString stringWithFormat:#"%#",[idActivityarray objectAtIndex:indexPath.row]];
txtactivity.text=[NSString stringWithFormat:#"%#",[activityarray objectAtIndex:indexPath.row]];
[[tableactivity cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryCheckmark];
}
I am getting output like this
CellForRowAtIndexPath
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.textLabel.text=[NSString stringWithFormat:#"%#",[activityarray objectAtIndex:indexPath.row]];
return cell;
}
My problem is I am getting only one value in the text box. I need to get all the selected values in the text box. How to do this? Thanks in Advance!
Take a NSMutableArray and initalize it at viewDidLoad. Then use the following code.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if(!arrSelectedValue containsObject:[activityarray objectAtIndex:indexPath.row]){
[arrSelectedValue addObject:[activityarray objectAtIndex:indexPath.row]];
txtactivity.text = [arrSelectedValue componentsJoinedByString:#","];
}
[[tableactivity cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryCheckmark];
}
- (void)tableView:(UITableView *)tableView didDeSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if(arrSelectedValue containsObject:[activityarray objectAtIndex:indexPath.row]){
[arrSelectedValue removeObject:[activityarray objectAtIndex:indexPath.row]];
txtactivity.text = [arrSelectedValue componentsJoinedByString:#","];
}
[[tableactivity cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryNone];
}
try this one, without storing into array directly you can append the string as per your selection. I hope this will work for you.
[txtactivity setText:[[txtactivity text] stringByAppendingString:[NSString stringWithFormat:#", %#", [activityarray objectAtIndex:indexPath.row]]]];
I hope txtactivity is your textfield. In your code, you are just setting the textfield text as the selected value.It will replace the current text. Instead of that append the selected value with the textfield content.
Change the code
txtactivity.text=[NSString stringWithFormat:#"%#",[activityarray objectAtIndex:indexPath.row]];
to this
txtactivity.text=[NSString stringWithFormat:#"%#,%#",txtactivity.text,[activityarray objectAtIndex:indexPath.row]]
This will append the newly selected value to the content of textfield.
Related
I am new in iOS development and i want to know when i click on row of table, my data which are shown in table view should be select on label. My label has name City.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [arrayname objectAtIndex:indexPath.row];
return cell;
}
In viewDidLoad add this array
dataArr=[[NSMutableArray alloc]initWithObjects:#"Hyderabad",#"Bangalore",#"Chennai",#"Pune",#"Mumbai", nil];
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *reUseid=#"cellID";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:reUseid];
if (cell==nil)
{
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reUseid];
}
cell.textLabel.text = dataArr[indexPath.row];
return cell;
}
Here is TableView didSelectRowAtIndexPath method.
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"selected is %#",[dataArr objectAtIndex:indexPath.row]);
[self performSegueWithIdentifier:#"viewToDescriptionSegue" sender:self];
}
in this method you got indexpath from that you can get selected row like indexpath.row and from that you can get object from array.
There is a UITableViewDelegate method named didSelectRowAtIndexPath which get called up when user select any row. Get the value from your array at indexPath.row and set the text on your label.
Implement the below code on your project:-
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
NSString *name = [arrayname objectAtIndex:indexPath.row];
[yourLabelInstance setText:name];
}
This is a delegate method of UITableView which is called when you tap on cell.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
city.text = [arrayname objectAtIndex:indexPath.row];
}
Below is a delegate method of UITableView which is called when you touch/select any row in table.
Here, using indexPath parameter you can access currently selected row index. You can access data from datasource array having selected row index.
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *strCity = [arrCity objectAtIndex:indexPath.row];
[lblCity setText:strCity];
}
Issue: I only want to show the selected cells with checkmark. I don't want the grey highlight.
I tried:
cell.selectionStyle = UITableViewCellSelectionStyleNone
but didn't work.
Here is the code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
ProfileSelection *profile = [self.profileSelections objectAtIndex:indexPath.row];
cell.textLabel.text = [profile profileName];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[self.profileSelectionsTableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryCheckmark;
[tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
ProfileSelection *profile = [self.profileSelections objectAtIndex:indexPath.row];
self.mobileProfileId = [profile.profileId stringValue];
[_continueButton setEnabled:YES];
}
How about this:
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
The selectionStyle property should be enough to remove the highlight.
If you want to show the checkmark after the used has selected the row, you need to implement the tableView:didSelectRowAtIndexPath: method
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[self.tableView cellForRowAtIndexPath:visibleIndexPath].accessoryType = UITableViewCellAccessoryCheckmark;
}
In Swift, the easiest way is to deselect a cell without animation right after it has been selected:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath, animated: false)
}
delete your this function
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
Try to use this your problem will be solved
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone
cell.textLabel.text = #"Checking Table View";
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
Go to Storyboard. Select your Table View Cell. Set Selection to None. Then add below codes:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryCheckmark;
}
-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryNone;
}
This thread looks a bit old, but I actually came across a decent solution for this recently. In case anyone stumbles across this thread, I figure I might as well post an answer. Especially since I spent hours trying to track this down.
I can't find my original sources anymore, but here's what I found out:
The highlight is made by a background view on the UITableViewCell on the selectedBackgroundView property. If we have a subclass of the table cell, we can detect the transition to the editing state with willTransitionToState: and set the background view to one that is clear/white instead of the blue/gray styles.
Here's what I ended up doing, and it works pretty well.
- (void)willTransitionToState:(UITableViewCellStateMask)state {
[super willTransitionToState:state];
// To remove the blue/gray highlight on the table cell when selected,
// set the selection background to a clear view.
if (state & UITableViewCellStateShowingEditControlMask) {
// If we're moving to an edit state, set the custom background view.
UIView *bgView = [[UIView alloc] init];
[bgView setTintColor:[UIColor whiteColor]];
[bgView setBackgroundColor:[UIColor clearColor]];
[self setSelectedBackgroundView:bgView];
} else {
// Otherwise, just remove it completely.
// The system should handle the rest.
[self setSelectedBackgroundView:nil];
}
}
The plus side to this over the other solutions I've seen is that this one is quite minimal. No need for tracking instance variables or anything else.
How do i store all selected cells text label text in a NSMutableArray?
How do i remove the correct cells text from the NSMutableArray when a cell is deselected?
What i have this far:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
static NSString *CellIdentifier = #"Cell";
PFTableViewCell *cell = (PFTableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[PFTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if ([self.allSelectedUsers containsObject:indexPath]) {
[cell setAccessoryType:UITableViewCellAccessoryCheckmark];
NSLog(#"Yeeees");
}else{
[cell setAccessoryType:UITableViewCellAccessoryNone];
}
// Configure the cell
cell.textLabel.text = object[#"username"];
return cell;
}
This is when i'm selecting a cell:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
if ([self.allSelectedUsers containsObject:indexPath]) {
[self.allSelectedUsers removeObject:indexPath];
}
else{
[self.allSelectedUsers addObject:indexPath];
}
NSLog(#"%d", self.allSelectedUsers);
[tableView reloadData];
}
When i check the log it doesn't display anything about the cells text label.
As I can't see how you're getting object instance, I suggest you to get back cell and read the title again.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
// Lazy initialise array
if (!self.allSelectedUsers) {
self.allSelectedUsers = [NSMutableArray new];
}
// Take action
if ([self.allSelectedUsers containsObject:indexPath]) {
[self.allSelectedUsers removeObject:indexPath];
} else {
[self.allSelectedUsers addObject:indexPath];
}
[tableView reloadData];
// Logging all selected users
for (NSIndexPath *sIndexPath in self.allSelectedUsers) {
NSLog(#"%#", [tableView cellForRowAtIndexPath:sIndexPath].textLabel.text);
}
}
You are currently storing NSIndexPath objects, not NSString objects, so it's not exactly what your question is asking. With your PFTableViewController, you have access to the selector objectAtIndexPath:.
for (NSIndexPath *indexPath in self.allSelectedUsers) {
NSLog(#"%#", [self objectAtIndexPath:indexPath][#"username"]);
}
Note: You shouldn't be calling reloadData in your didSelectRowAtIndexPath: responder; change the accessory type for the cell instead.
[[tableView cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryCheckmark];
You should also implement didDeselectRowAtIndexPath: to know when a user deselects a row.
I'm attaching an image because this is kinda hard to explain, I've also mocked up what I actually want it to look like. I'm going to try to explain it to so that others might find the question.
Maybe you've run up against this before and know a fix?
Here is the image of what I have alongside a mockup of what I want:
On the left, what I have, the items in the table are not separated by separator lines but the empty lines cells are separated. Ideally, the empty cells would not be shown and the table would just end letting the background show and the items in the table would have separators between their cells.
This is the corresponding code:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
NSMutableArray *withoutThing = [NSMutableArray arrayWithArray:self.containerOfLists];
[withoutThing removeObjectAtIndex:indexPath.row];
self.containerOfLists = withoutThing;
[[NSUserDefaults standardUserDefaults] setObject:self.containerOfLists forKey:#"list of lists"];
[[NSUserDefaults standardUserDefaults] synchronize];
[self.tableView reloadData];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.containerOfLists count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"ListCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
cell.textLabel.text = self.containerOfLists[indexPath.row];
return cell;
}
Ok.
In the Storyboard, select your UITableView, set the Separator to Single Line, or by code with:
[yourTableView setSeparatorStyle:UITableViewCellSeparatorStyleSingleLine];
In your code, do somewhere:
[yourTableView setBackgroundColor:[UIColor lightGrayColor]];
Or the gray color you want.
Add this to your datasources methods (as the same level as tableView: cellForRowAtIndexPath):
-(UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
return [[UIView alloc] init];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 5; //return correct number
}
in ViewDidLoad method call:
[self.tableView setSeparatorStyle:UITableViewCellSeparatorStyleSingleLine];
Init cell:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"ListCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (!cell)
{
//init the cell!
}
cell.textLabel.text = self.containerOfLists[indexPath.row];
return cell;
}
I have a problem reloading selected cells.
Trying to follow a tutorial but now stuck with a strange problem.
I have made a list where selecting an item is suppose to show/remove a checkmark.
However, the cell is not updated until I select another cell in the list.
Any ideas?
I have attached the relevant sourcecode below.
Thanks, K
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"ListPrototypeCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
XYZToDoItem *toDoItem = [self.toDoItems objectAtIndex:indexPath.row];
cell.textLabel.text = toDoItem.itemName;
if(toDoItem.completed) {
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:NO];
XYZToDoItem *toDoItem = [self.toDoItems objectAtIndex:indexPath.row];
toDoItem.completed = !toDoItem.completed;
[tableView reloadRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationNone];
}
You've accidentally implemented didDeselectRowAtIndexPath instead of didSelectRowAtIndexPath.
Your problem is tha tha you didn't use the didSelectRowAtIndexPath but the didDeselectRowAtIndexPath so right now every time you deselect your cell you updateyour cell :)