I am trying to make the keyboard disappear when a UIButton is pressed -
-(IBAction)nextButtonPressed{
[usernameTextField resignFirstResponder];
[passwordTextField resignFirstResponder];
}
I have declared the button as IBOutlet and connected it to the IBAction in the storyboard. But the code however does not work and keyboard remains visible. What am I doing wrong ?
First you need to subscribe to the UITextFieldDelegate Protocol in your View/ViewController's header file like this:
#interface YourViewController : UIViewController <UITextFieldDelegate>
Make sure you're setting your view/viewcontroller to be the UITextField's delegate after you init the textfield in the .m:
yourTextField.delegate = self;
And you can do this :
-(IBAction)nextButtonPressed{
[usernameTextField resignFirstResponder];
[passwordTextField resignFirstResponder];
}
Hope it'll help
You forgot this:
usernameTextField.delegate = self;
passwordTextField.delegate = self;
Related
I have four UITextFields and associated each with an outlet in .h files. I have also defined 4 dismiss function for each textfield as shown below:
- (IBAction)dismiss1:(id)sender;
- (IBAction)dismiss2:(id)sender;
- (IBAction)dismiss3:(id)sender;
- (IBAction)dismiss4:(id)sender;
#property (strong, nonatomic) IBOutlet UITextField *name;
#property (strong, nonatomic) IBOutlet UITextField *email;
#property (strong, nonatomic) IBOutlet UITextField *weight;
#property (strong, nonatomic) IBOutlet UITextField *age;
Implementation of dismiss function in the .m file:
- (IBAction)dismiss1:(id)sender {
[sender resignFirstResponder];
}
- (IBAction)dismiss2:(id)sender {
[sender resignFirstResponder];
}
...
I am very sure that the outlet is connected to each UITextFiled correctly. The IBAction of each dismiss function is also connected with 'Editing did end' event correspondingly. However, when I ran the app using simulator, the keyboard will not dismiss when I click 'Enter/Done'. It's also very weird that when I place the breakpoint inside the dismiss function, clicking 'Enter' when typing in the corresponding UITextField does not bring up the debugger.
Thanks a lot for helping!
Update: I checked the object type of sender (dismiss1) using breakpoint and it's UITextFiled. However, I did not entered the debugging mode when I click 'Enter' in the first TextField, but entered the debugging mode when I click on the second TextField (before typing).
set UITextFielDelegate
textfieldname.delegate = self;
use this code it will resolve your issue
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
Use the code to resign keyBoard without specify textFiled name.
- (IBAction)dismiss1:(UITextField*)sender {
[self.view endEditing:true];
// or use [sender resignFirstResponder];
}
Add text field delegate
name.delegate = self;
email.delegate = self;
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
No need to create four actions for textfield
You can set delegate of Textfield and use following method
- (void)textFieldDidEndEditing:(UITextField *)textField
Inside this method you can compare your textfield with method returning textfield and get you task done in "if" condition
Hope it help you!!
Assign the tag to different textfields
then >
textfield.delegate = self;
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
if(textfield.tag==num)
{
[textField resignFirstResponder];
}
return YES;
}
The Editing did end is called when a textfield did lose the "focus", mean it is not the first responder any more (because it has resigned or an other one became first responder).
Use textFieldShouldReturn to detect when the return key is called.
And call resignFirstResponder on the texfield when this is called. The Editing did end event will occur after that.
Edit : you have to implement something (Your ViewController?) as delegate of the textfield.
In my app, I have a view controller which is having a search bar with UItextfield at the top and a UIImageview below that. The image view is initially hidden.
I want this image view to unhide through an if statement. The user will enter keywords into the textfield and when a certain word will match a pre defined string in the.m file, then it must show the image.
I originally had two view controllers but now I added another one (thirdviewcontroller). As I enter a word into the textfield, the simulator will direct me back to the code highlighting in green on this line:
if ([string1 isEqualToString:string2]) {
locationMap.hidden = YES;
This is .h file:
#interface ThirdViewController : UIViewController
{
IBOutlet UITextField *searchLocation;
IBOutlet UIImageView *locationMap;
}
-(IBAction)SearchGo;
#end
This is the .m file:
-(IBAction)SearchGo{
NSString *string1 = searchLocation.text;
NSString *string2= #"sydney";
if ([string1 isEqualToString:string2]) {
locationMap.hidden = YES;
}
}
It sounds like you've accidentally set up a breakpoint. Simply remove the breakpoint by clicking the blue arrow to the left of the line it breaks on.
In viewDidLoad method, use:
locationMap.hidden = YES;
In your -(IBAction)SearchGo method, use:
locationMap.hidden = NO;
OR for your searchGo method:
-(IBAction)SearchGo{
if ([searchLocation.text isEqualToString:#"sydney"]) {
locationMap.hidden = NO;
}else {
//implementation
}
}
I am guessing, you have attached the IBAction with your textfield,searchLocation and triggered the action specifying "Touch up Inside". This will not work for couple of reasons.
First of all, you need to implement the textFieldShouldReturn: delegate method, so that your controller knows when you press return, it should hand over the control from your text field. Then again, a you have attached your action method to your text filed, as soon as you tap on the textfield, it goes to your method and start comparing but at this point, you have typed nothing in your textfield and it fails to conform to your if condition.
the solution is to either use the have a button and attach the action method to that button. That way, after you have typed the word "sydney", and you hit on the button. It will take whatever in your textfield and compare to that.
Here is the solution-
See the extra button named "Go". Attach your method to it.
This is my .h file-
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController<UITextFieldDelegate>
#property(nonatomic, strong) IBOutlet UITextField *searchLocation;
#property(nonatomic, strong) IBOutlet UIImageView *locationMap;
-(IBAction)SearchGo:(id)sender;
#end
And this is the .m file-
#import "ViewController.h"
#interface ViewController ()
#property(nonatomic, strong) NSString *string1;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark- textfield delegate
- (void)textFieldDidEndEditing:(UITextField *)textField{
self.string1 = textField.text;
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField{
[textField resignFirstResponder];
return YES;
}
-(IBAction)SearchGo:(id)sender{
NSString *string2= #"Sydney";
if ([self.string1 isEqualToString:string2]) {
self.locationMap.hidden = NO;
}
}
#end
Save the string from the textfield after your editing is done through the delegate method. Make sure, you attach the UITextFieldDelegate to your ViewController.
Alternatively, you may want to avoid all this trouble and use the UISearchDisplay controller.
I have a text field named "fieldPassword" declared as an IBOutlet
#property (strong, nonatomic) IBOutlet UITextField *fieldPassword;
I synthesize it later on and then, in an attempt to have the return key dismiss the keyboard, I have:
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
fieldPassword.delegate = self;
[fieldPassword resignFirstResponder];
[self.view endEditing:YES];
return YES;
}
The problem is that when I run the simulator and hit the return key in the designated text field, nothing happens. Previously, I also had fieldPassword.delegate = self; in -viewDidLoad and that crashed the simulator with an unrecognized selector error.
Any help is much appreciated!
It should be [self.fieldPassword resignFirstResponder]; instead of [fieldPassword resignFirstResponder];
Also self.fieldPassword.delegate = self; should be in viewDidLoad or viewDidAppear
If you don't set the delegate earlier, you won't get the delegate callback. Try this in viewDidLoad:
self.fieldPassword.delegate = self;
You might have been missing the self before.
Follow the below things
1.Go to xib or storyboard where you have set that your view.
2.Right Click the TextField.If you click that you can see the
Outlets->Delegate with Empty Circle
3.Just connect with File's Owner.It is Yellow Color.
Once you do this,the circle is not empty.It is filled now.
4.Then go to declaration or .h part
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController<UITextFieldDelegate>
5.Then in .m
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
Looks like I have a problem with UITextFieldDelegate.
I just created a view controller that responds to UITextFieldDelegate protocol, and easily added the field to the xib, then set delegate field...you know.
But when I trying to press the field (to start editing, the program crashes).
Same thing happens when I trying to create field programmatically.
Here is call stack:
Here is full code:
.h
#import <UIKit/UIKit.h>
#interface TopBar : UIViewController <UITextFieldDelegate>
{
IBOutlet UITextField * field_top;
}
.m
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
NSLog(#"textFieldShouldBeginEditing");
textField.backgroundColor = [UIColor colorWithRed:220.0f/255.0f green:220.0f/255.0f blue:220.0f/255.0f alpha:1.0f];
return YES;
}
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
NSLog(#"textFieldDidBeginEditing");
}
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField
{
NSLog(#"textFieldShouldEndEditing");
textField.backgroundColor = [UIColor whiteColor];
return YES;
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
NSLog(#"textFieldDidEndEditing");
}
Delegate is set by IB.
Error screenshot:
Any help please.
Ensure you have this in your .h
#interface TopBar : UIViewController <UITextFieldDelegate> {
}
#property (nonatomic, weak) IBOutlet UITextField *field_top;
and remove from the #interface
IBOutlet UITextField * field_top;
It sounds like your field_top is being released and you're trying to access it later, thats why it's crashing.
I found the answer.
The solution is ti also use addChildViewConroller, not only addSubview.
Hope it will help to someone...
I'm trying to move the view up when the keyboard shows so it wont cover up the screen, but for some reason its the -(void)DidBeginEditing: (UITextField *)textfield is not working.
- (void)textFieldDidBeginEditing:(UITextField *)ga1
{
/* should move views */
self.view.center = CGPointMake(self.view.center.x, self.view.center.y + 220);
}
- (void)textFieldDidEndEditing:(UITextField *)ga1
{
/* should move views */
self.view.center = CGPointMake(self.view.center.x, self.view.center.y - 220);
}
its nor going into the method, can anyone tell me why?
In the interface of the class add the line , so in the .m file you would put above where it says #implementation...
#interface MyClassName () <UITextFieldDelegate>
// properties can also go here
// for example dragging the IBOutlet for the textfield from the storyboard
#end
You then in viewDidLoad should set the delegate of the UITextField like so...
-(void)viewDidLoad {
// whatever code
self.textField.delegate = self;
}
Alternatively, and more cleanly, you can do this in the story board by control clicking the text field and dragging the indicator to the view controller class icon (the icon to the furthest left) in the lower bar.
Also, why are you calling the argument to the textField in your implementation "ga1"? Best practice you should call it
- (void)textFieldDidBeginEditing:(UITextField *)textField
One final note is that if you have multiple textFields you should set the delegate for each of them in the way described above. This is why the storyboard way of doing it is "cleaner," because it keeps you from having multiple delegate declarations in your code.
If implemented, it will get called in place of textFieldDidEndEditing
#interface MyViewController :UIVieController <UITextFieldDelegate>
#property UITextField *myTextField
#end
#implementation MyViewController{
}
- (void)viewDidLoad {
[super viewDidLoad];
self.myTextfield.delegate=self;
}
-(void)textFieldDidEndEditing:(UITextField *)textField reason:(UITextFieldDidEndEditingReason)reason{
if(reason==UITextFieldDidEndEditingReasonCommitted)
{
NSLog(#"Committed");
}
}
Implement <UITextFieldDelegate> Protocol for your class. And set the delegate to self. Here is Apple's document UITextFieldDelegate Protocol