Next button don't navigate through UITextField - iphone

Question

After a some time, searching here for some solutions we found this post:
How to navigate through textfields (Next / Done Buttons)
We tried that but unfortunately it doesn't work at all. Note that we put the UITextFields inside a UITableView.
We think the problem is around the Delegates but we don't know how to deal with it. Following i show you our code:
.h:
#import <UIKit/UIKit.h>
#interface LoginViewController : UIViewController <UITableViewDelegate, UITableViewDataSource, UITextFieldDelegate> {
UITableView *loginTableView;
UITextField *textField;
}
#property UITableView *loginTableView;
#property UITextField *textField;
#property UIButton *loginButton;
#property UIButton *cancelButton;
#end
.m:
#import <QuartzCore/QuartzCore.h>
#import "LoginViewController.h"
#import "RootViewController.h"
#interface LoginViewController ()
#end
#implementation LoginViewController
#synthesize loginTableView, textField, loginButton, cancelButton;
- (void)viewDidLoad {
[super viewDidLoad];
// Make rounded corners view
[self.view.layer setCornerRadius:4.0];
[self.view.layer setMasksToBounds:YES];
self.view.layer.opaque = NO;
self.view.backgroundColor = [UIColor whiteColor];
// Create background image view
UIImageView *loginBackgroundImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height+20)];
// Create background's image
UIImage *backgroundImage = [UIImage imageNamed:#"loginbackground.png"];
loginBackgroundImageView.image = backgroundImage;
[self.view addSubview:loginBackgroundImageView];
// Create logo's image
UIImage *logoImage = [UIImage imageNamed:#"logo.png"];
// Create logo's image view
UIImageView *logoImageView = [[UIImageView alloc] initWithFrame:CGRectMake(self.view.bounds.size.width/2 - logoImage.size.width/2, self.view.bounds.size.height/9, logoImage.size.width, logoImage.size.height)];
// Set image to logo's image view
logoImageView.image = logoImage;
[self.view addSubview:logoImageView];
// Create login table view
loginTableView = [[UITableView alloc] initWithFrame:CGRectMake(self.view.bounds.size.width/2 - (self.view.bounds.size.width/1.2)/2, self.view.bounds.size.height/3, self.view.bounds.size.width/1.25, 100) style:UITableViewStylePlain
];
loginTableView.delegate = self;
loginTableView.dataSource = self;
// Create login container table view
UIImage *containerImage = [UIImage imageNamed:#"loginform.png"];
UIImageView *containerImageView = [[UIImageView alloc] initWithFrame:CGRectMake(self.view.bounds.size.width/2 - containerImage.size.width/2, self.view.bounds.size.height/3, containerImage.size.width, containerImage.size.height)];
containerImageView.image = containerImage;
[self.view addSubview:containerImageView];
// Custom table view
loginTableView.backgroundColor = [UIColor clearColor];
loginTableView.separatorColor = [UIColor clearColor];
// Disable scroll
loginTableView.scrollEnabled = NO;
// Add login table view to main view
[self.view addSubview:loginTableView];
// Create buttons images
UIImage *loginImage = [UIImage imageNamed:#"loginbtn2.png"];
UIImage *cancelImage = [UIImage imageNamed:#"cancelbtn.png"];
// Create buttons
loginButton = [UIButton buttonWithType:UIButtonTypeCustom];
cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];
// Set buttons' normal state image
[loginButton setImage:loginImage forState:UIControlStateNormal];
[cancelButton setImage:cancelImage forState:UIControlStateNormal];
// Place buttons
loginButton.frame= CGRectMake((self.view.bounds.size.width/2)-(loginImage.size.width/2), self.view.bounds.size.height/1.65, loginImage.size.width, loginImage.size.height);
cancelButton.frame= CGRectMake((self.view.bounds.size.width/2)-(cancelImage.size.width/2), self.view.bounds.size.height/1.375, cancelImage.size.width, cancelImage.size.height);
// Set buttons' action
[loginButton addTarget:self action:#selector(loginButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[cancelButton addTarget:self action:#selector(cancelButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
// Set button to the main view
[self.view addSubview:loginButton];
[self.view addSubview:cancelButton];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return 2;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"Cell"];
cell.accessoryType = UITableViewCellAccessoryNone;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
if ([indexPath section] == 0) {
textField = [[UITextField alloc] initWithFrame:CGRectMake(50, 11, 200, 25)];
textField.adjustsFontSizeToFitWidth = NO;
textField.textColor = [UIColor darkGrayColor];
textField.backgroundColor = [UIColor clearColor];
if ([indexPath row] == 0) {
textField.placeholder = #"Username";
textField.keyboardType = UIKeyboardTypeEmailAddress;
textField.returnKeyType = UIReturnKeyNext;
textField.autocorrectionType = UITextAutocorrectionTypeNo;
textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
textField.tag = 0;
}
else {
textField.placeholder = #"Password";
textField.keyboardType = UIKeyboardTypeEmailAddress;
textField.returnKeyType = UIReturnKeyDone;
textField.autocorrectionType = UITextAutocorrectionTypeNo;
textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
textField.secureTextEntry = YES;
textField.tag = 1;
}
textField.clearButtonMode = UITextFieldViewModeAlways;
textField.delegate = self;
[textField setEnabled: YES];
[cell addSubview:textField];
}
}
if ([indexPath section] == 0) { // Email & Password Section
if ([indexPath row] == 0) { // Email
cell.imageView.image = [UIImage imageNamed:#"usernameico.png"];
}
else {
cell.imageView.image = [UIImage imageNamed:#"passwordico.png"];
}
}
else { // Login button section
cell.textLabel.text = #"Log in";
}
return cell;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *) tableView {
return 1;
}
-(BOOL)textFieldShouldReturn:(UITextField*) formTextField {
NSInteger nextTag = formTextField.tag + 1;
// Try to find next responder
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder) {
// Found next responder, so set it.
[nextResponder becomeFirstResponder];
} else {
// Not found, so remove keyboard.
[formTextField resignFirstResponder];
}
return NO; // We do not want UITextField to insert line-breaks.
}
- (void)loginButtonPressed: (UIButton *) sender {
}
- (void)cancelButtonPressed: (UIButton *) sender {
}
#end
Thank you in advance!

Answer 1

The problem is the table. When you ask you text view for it's superview, it will return the cell, which doesn't contain any other siblings. Try:
UIResponder* nextResponder = [tableView viewWithTag:nextTag];

Answer 2

Creare an array with your UITextField inside the cellForRowAtIndexPath: method..
[txtArray addObject:textField];
and then this bellow method it will work...
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
int i=[txtArray count];
int x=textField.tag+1;
UITextField *nextTextField = (UITextField *)[txtArray objectAtIndex:x];
if (x<i-1) {
[nextTextField becomeFirstResponder];
} else {
[textField resignFirstResponder];
}
return YES;
}
i hope this help you...

Answer 3

Give tag to your textField one by one and use textField delegate
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
int NextTextField = textField.tag+1;
UITextField *txt = (UITextField *) [tableView viewWithTag:NextTextField];
[txt becomeFirstResponder];
return NO;
}