How to get back textfield data from tableViewCell in objective c? - ios

Question

I have two tableViewControllers, second tableViewController tableViewCell has textField and imageView, how can I get data from that textfield when I click navigationBarBackButton (I want to store that data in first tableViewController).
// code from second tableViewController...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row == 0) {
UITableViewCell *cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:#"cellID"];
cell.textLabel.text = #"SIM Name";
cell.detailTextLabel.text = #"AirTel";
cell.imageView.image = [UIImage imageNamed:#"Star2.png"];
return cell;
}
TableViewCell1 *cell1 = [tableView dequeueReusableCellWithIdentifier:#"cell1"];
cell1.nameTextField.delegate = self;
if (indexPath.row == 1) {
NSArray *cell1XibRef = [[NSBundle mainBundle]loadNibNamed:#"TableViewCell1" owner:self options:nil];
cell1 = [cell1XibRef objectAtIndex:0];
cell1.imageView.image = [UIImage imageNamed:#"Con.png"];
self.nameString = cell1.nameTextField.text;
return cell1;
}
return nil;
}
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
return YES;
}
- (void)textFieldDidBeginEditing:(UITextField *)textField{
//Whenever people start editing your textfield
self.nameString = textField.text;
NSLog(#"%#", self.nameString);
}

Answer 1

So many ways to do that but I prefer this way
Save the textfield.text value in NSUserDefaults like this
[[NSUserDefaults standardUserDefaults] setObject:textField.text forKey:#"controllerTwo"];
And get that value in first controller
NSString *secondContrllerText = [[NSUserDefaults standardUserDefaults] stringForKey:#"controllerTwo"];

Answer 2

You can directly add cells in one array and loads cells from that array which will returns you latest cell with all your edits.
NSMutableArray *arrCells = [[NSMutableArray alloc] init];
for (init i=0; i<20; i++){
UITableViewCell *cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:#"cellID"];
arrCells = cell;
}
In cellForRowAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = arrCell[indexPath.row];
......
return cell;
}

Answer 3

here is the code i like to pass the data with block.here is the code wish to help you.
FirstViewController.h
#import <UIKit/UIKit.h>
#interface FirstViewController : UIViewController
#end
FirstViewController.m
#import "FirstViewController.h"
#import "ViewController.h"
#interface FirstViewController ()
#end
#implementation FirstViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)buttonClick
{
ViewController *controller = [[ViewController alloc] init];
controller.passTheTextFieldData = ^(NSString *textValue){
NSLog(#"show the %# textValue",textValue);
};
[self.navigationController pushViewController:controller animated:YES];
}
#end
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
#property (nonatomic, strong) void (^passTheTextFieldData)();
#end
ViewController.m
#import "ViewController.h"
#interface ViewController ()<UITextFieldDelegate>
#property (nonatomic, strong) UITextField *textField;
#property (nonatomic, strong) NSString *textValue;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.textField = [[UITextField alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
[self.textField addTarget:self action:#selector(textFieldValueChanged) forControlEvents:UIControlEventValueChanged];
}
- (void)textFieldValueChanged
{
self.textValue = self.textField.text;
}
- (void)navigationbarBackClick
{
if (self.passTheTextFieldData) {
self.passTheTextFieldData(self.textValue);
}
}
#end

Answer 4

Set the tag property for textField in tableViewCell
Then loop through the cells
for (int i = 0 ; i < [cellDataArray count] ; i++) {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
UITextField *txtfield = [[cell contentView]viewWithTag:2];
//now get the text txtfield.text
}
Hope this helps

Answer 5

Either you can use delegate method to store your value or use NSUserdefaults.But you have to store one value to pass it to another table view i recommend you to use NSUserdefaults.
//suppose you have to save text (get your data)
NSString *valueToSave = cell1.nameTextField.text;
[[NSUserDefaults standardUserDefaults] setObject:valueToSave forKey:#"keyAbcd"];
[[NSUserDefaults standardUserDefaults] synchronize];
//another page where you want to show your data (paste your data)
NSString *savedValue = [[NSUserDefaults standardUserDefaults]
stringForKey:#"keyAbcd"];//your key have to be same
//print save value in nslog