I've searched for a while but I cannot find the answer to my problem. I have a custom UITableViewCell that has a UITextField.
I use the cellForRowAtIndexPath to create a table with cells. In the UIView that takes the user to the UITableViewController the user specifies how many rows they wish to have. When the user goes back and forth the UITextField text seems to be lost and does not appear in the UITableView
Basically, I cannot get the text that the user inputs to save. Here is my code:
CustomeCell.m
#implementation customCell
#synthesize aTextField;
-(void)layoutSubviews{
aTextField = [[UITextField alloc] initWithFrame:CGRectMake(7, 3, 65, self.contentView.bounds.size.height-6)];
[aTextField setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
[aTextField setAutocorrectionType:UITextAutocorrectionTypeNo];
[aTextField setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[aTextField setBorderStyle:UITextBorderStyleRoundedRect];
aTextField.textAlignment = NSTextAlignmentCenter;
aTextField.keyboardType = UIKeyboardTypeNumberPad;
[self.aTextField addTarget:self action:#selector(aTextFieldEditing:) forControlEvents:UIControlEventEditingChanged];
[aTextField setAutocapitalizationType:UITextAutocapitalizationTypeWords];
[aTextField setPlaceholder:#"begin"];
[self.contentView addSubview:aTextField];
}
-(void)aTextFieldEditing:(UITextField*)textField{
aTextField.text = textField.text;
}
#end
from TableViewController.m
-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"Cell";
customCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[customCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
return cell;
}
Any recommendations? Thank you in advance.
Related
I create UITableView and add textfields to the content of cell to allow the user to enter his data and when the user end editing the text field I want to save the insert data in text field, but the problem is the UITextField retrieve null.
At cellForRowAtIndexPath I added
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
TextField1 = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 80,45)];
TextField2 = [[UITextField alloc] initWithFrame:CGRectMake(83, 0, 70,45)];
TextField3 = [[UITextField alloc] initWithFrame:CGRectMake(156, 0, 70,45)];
[TextField1 setDelegate:self];
[TextField2 setDelegate:self];
[TextField3 setDelegate:self];
TextField1.userInteractionEnabled=YES;
TextField1.enabled=YES;
TextField2.userInteractionEnabled=YES;
TextField2.enabled=YES;
TextField3.userInteractionEnabled=YES;
TextField3.enabled=YES;
[cell.contentView addSubview:TextField1];
[cell.contentView addSubview:TextField2];
[cell.contentView addSubview:TextField3];
return cell;
}
- (void)textFieldDidEndEditing:(UITextField *)textField{
NSString*VisitDateStr=[NSString stringWithFormat:#"%#",TextField1.text];
NSLog(#"%#",VisitDateStr);
}
The result (null).
How I can retrieve the user details which insert on textfield at the tableview?
Thanks, I appreciate any help.
Use the following code :
-(void)textChanged:(UITextField *)textField
{
NSString*VisitDateStr=[NSString stringWithFormat:#"%#",textField.text];
}
Use this delegate method:
Set delegate to self in cellforRowAtIndexPath
- (void)textFieldDidEndEditing:(UITextField *)textField;
try out this
-(void)textChanged:(UITextField *)textField
{
NSString*VisitDateStr=[[NSString alloc]init];
VisitDateStr=[NSString stringWithFormat:#"%#",TextField1.text];
}
or
-(void)textChanged:(UITextField *)textField
{
NSString*VisitDateStr=[[NSString alloc]init];
VisitDateStr=TextField1.text;
NSLog(#"%#",VisitDateStr);
}
In a UITableView, I would like to be able to edit the cell.textLabel.text property of the row, when such row is touched.
In other terms, I would like to be able to edit the row directly touching it, instead of entering into edit mode.
How can I implement this?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
CMTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[CMTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
int tagsCount = [[currentComic Tags] count];
[[cell textField] setTag:[indexPath row]];
[[cell textField] setText:[tagsDisplayName objectAtIndex:[indexPath row]]];
return cell;
}
And this is the subclass CMTableViewCell:
...
-(void)viewDidLoad
{
textField = [[UITextField alloc] init];
[textField setFrame:CGRectMake(5,5,50,400)];
[self addSubview:textField];
}
Add UITextField without borders as subview. Before adding it to subview - set Tag nubmer to UITextField from indexPath.row at tableview cellForRowAtIndexPath method. When user entered data - save it with UITextFieldDelegate methods when "Return" button was pressed. Unfortunately I can't give you code, because right now I'm on Windows. Home this will help
UPDATE: Tag number needed to change data in your DataSource. When you pressed "Return" button in your UITextField, you can save changed by getting UITableViewCell by this tag number from UITextField.
It's simple:
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.textLabel.text = #"...";
}
UPDATE
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITextField *textField = [[UITextField alloc] init];
[textField setTag:[indexPath row]];
[tagsTableView addSubview:textField];
FreeAndNil(textField);
}
Please, explain me: how to programmatically create an UITextView in UITableViewCell (UITableView has a grouped style). The text view size should be equal to size of the cell.
The UITextView has a gap between its text and its border (top left corner), so I need the correct coordinates to properly place the text view on a cell.
UPDATE: I've solved my question. See my self-answer below. Thanks!
It was simple:
textView.frame = CGRectMake(0, 0, cell.contentView.frame.size.width, cell.contentView.frame.size.height);
Here you go:
- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Prototype Cell"];
UITextField *textfield;
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:#"Prototype Cell"];
textfield = [[UITextField alloc] init];
[cell.contentView addSubview:textfield];
textfield.tag = TEXT_FIELD_TAG; //Suppose you defined TEXT_FIELD_TAG someplace else
}
else
{
textfield = [self.view viewWithTag: TEXT_FIELD_TAG];
textfield.frame = cell.frame;
}
return cell;
}
Set "contentInset" of UITextView
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *sCellIdentifier = #"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:sCellIdentifier];
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDetail
reuseIdentifier:sCellIdentifier];
}
UITextView *textView = [UITextView alloc]init];
textView.contentInset = UIEdgeInsetsMake(-8,-8,-8,-8); //Change according ur requirement
textView.frame = cell.frame;
[textView setUserInteractionEnabled:FALSE];
[textView setBackgroundColor:[UIColor clearColor]];
[cell.contentView addSubView:textView];
return cell;
}
i know im asking a very common question. but after going through a lots of similar questions and articles im not able understand
How can i access UITextfield inside UITableViewCell inside didSelectRowAtIndexPath delegate method.
im posting my code below. i may b not going with expected way although..
i want to make textfield (of selected row) [becomeFirstResponder] in didSelectRowAtIndexPath
so that i can display uiPicker below to this textfield. Please help me out with this.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
if(self.isTableForHospital)
{
UIView *myview=[self createRowViewForHospitalTable:[customArray objectAtIndex:indexPath.row]];
myview.tag=indexPath.row;
[cell addSubview:myview];
cell.selectionStyle=UITableViewCellSelectionStyleNone;
}
else
{
cell.textLabel.text=[customArray objectAtIndex:indexPath.row];
}
}
return cell;
}
-(UIView *)createRowViewForHospitalTable:(NSString *)rowText
{
UIView *hospital_row_view=[[UIView alloc]init];
UILabel *lblRowText=[[UILabel alloc]initWithFrame:CGRectMake(0, 0, 300, 50)];
lblRowText.text=rowText;
txtDepartment=[[UITextField alloc]initWithFrame:CGRectMake(310, 0, 185, 30)];
//...rest styling for textfield goes here..
txtRole=[[UITextField alloc]initWithFrame:CGRectMake(495, 0, 185, 30)];
[hospital_row_view addSubview:lblRowText];
[hospital_row_view addSubview:txtDepartment];
[hospital_row_view addSubview:txtRole];
return hospital_row_view;
}
- (void)textFieldDidEndEditing:(UITextField *)textField { }
- (void)textFieldFinished:(id)sender{
NSString *value=#"sa";
[sender resignFirstResponder];
}
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cellSelected = [tableView cellForRowAtIndexPath: indexPath];
UIView *myview=[cellSelected.contentView viewWithTag:indexPath.row];
for(UIView *item in [myview subviews])
{
if([item isKindOfClass:[UITextField class]])
{
[item becomeFirstResponder];
}
}
}
In terms of iterating through the cell subviews and getting the UITextField, I think I have your answer.
I found this on another thread here, and modified it to be more generic:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITextField* textField = [[UITextField alloc] init];
UITableViewCell* cell = [tableView cellForRowAtIndexPath:indexPath];
UIView* subview = [[cell.contentView subviews] lastObject]; // Make sure your UITextField really *is* the last object you added.
if ([subview isKindOfClass:[UITextField class]]) {
textField = (UITextField*)subview;
}
[textField becomeFirstResponder];
}
...where "textField" is the placeholder for your actual text field object.
Hope this helps!
I don't think you need to alloc init the textfield, for it will ultimately be pointing to the cell's textfield (if any).
I believe you are allocating it unnecessarily.
when I used layoutSubviews method of UItableViewcell with category, just like the code below
#implementation UITableViewCell (forimage)
- (void)layoutSubviews{
[super layoutSubviews];
self.imageView.frame = CGRectMake(0, 0, 50, 50);
}
#end
when I used the code below to draw the cells , the textLabel was disappeared ,anyone know why it be that~, and does that mean if I use layoutSubviews,I must write all the subviews what I need in the method?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
RadioInfo *radioinfo = [radios objectAtIndex:indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:#"%#",radioinfo._name];
if(!radioinfo._logo){
if(self.tableView.dragging == NO && self.tableView.decelerating == NO){
[self startPicDownload:radioinfo forIndexPath:indexPath];
}
cell.imageView.image = [UIImage imageNamed:#"1.jpg"];
}
else {
cell.imageView.image = radioinfo._logo;
}
return cell;
}
What you want to do is add to the behaviour of UITableViewCell's layoutSubviews method, not replace it.
To properly add to the behaviour, subclass the cell and perform your own layout, as you have above but add a [super layoutSubviews] right at the top of your method to ensure that the cell's own basic layout is performed first.