although i set the nextKeyView of the NSTextField, the focus is gained by a different NSTextField
tried "Auto Recalculates View Loop" checked / unchecked
toggled "Full Keyboard Access"
tried also catching the tab in
code
- (BOOL)control:(NSControl*)control textView:(NSTextView*)textView doCommandBySelector:(SEL)commandSelector {
BOOL result = NO;
if (commandSelector == #selector(insertTab:)) {
// tab action:
result = NO;
}
return result;
}
There returning YES / No, tired to set the next responder as
[self.window makeFirstResponder:self.nextKeyView]
With no success
selecting the NSTextField with selectText:, while catching the 'Tab' worked (note you have to return YES, meaning you are are processing the Tab)... you cannot rely purely on the nextKeyView
Put this in your NSTextField subclass and link the nextKeyView
- (BOOL)control:(NSControl*)control textView:(NSTextView*)textView doCommandBySelector:(SEL)commandSelector
{
BOOL result = NO;
if (commandSelector == #selector(insertTab:)) {
// tab action:
// always insert a tab character and don’t cause the receiver to end editing
if ([self.nextKeyView isKindOfClass:[NSTextField class]]) {
[(NSTextField *)self.nextKeyView selectText:self];
result = YES;
} else {
//[textView insertTabIgnoringFieldEditor:self];
result = NO;
}
}
return result;
}
Related
This seems to be one of the most frequently discussed topics here but I couldn't find a solution which actually works. I'm posting this question to share a solution which I found as well as hoping to find a better/cleaner solution
Description of situation:
There is a UIWebview in my application
There is text input/area in the webview
Long pressing on the text area/input brings up a context menu with 'cut', 'copy', 'define' etc.
We need to disable this menu without disabling user input.
What I've tried so far
(Stuff that doesn't work) :
Override canPerformAction
This solution tells us to add canPerformAction:withSender: to either subclass of UIWebview or in a delegate of UIWebview.
- (BOOL) canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector(defineSelection:))
{
return NO;
}
else if (action == #selector(translateSelection:))
{
return NO;
}
else if (action == #selector(copy:))
{
return NO;
}
return [super canPerformAction:action withSender:sender];
}
Does not work because the canPerformAction: in this class is does not get called for menu items displayed.
Since the sharedMenuController interacts with the first responder in the Responder chain, implementing canPerformAction in the container skipped select and selectAll because they had already been handled by a child menu.
Manipulating CSS
Add the following to CSS:
html {
-webkit-user-select: none;
-webkit-touch-callout: none;
-webkit-tap-highlight-color:rgba(0,0,0,0);
}
This does work on images and hyperlinks but not on inputs.
:(
The root cause of the first solution not working is the subview called UIWebBrowserView. This seems to be the view whose canPerformAction returns true for any action displayed in the context menu.
Since this UIWebBrowserView is a private class we shouldn't try to subclass it (because it will get your app rejected).
So what we do instead is we make another method called mightPerformAction:withSender:, like so-
- (BOOL)mightPerformAction:(SEL)action withSender:(id)sender {
NSLog(#"******Action!! %#******",NSStringFromSelector(action));
if (action == #selector(copy:))
{
NSLog(#"Copy Selector");
return NO;
}
else if (action == #selector(cut:))
{
NSLog(#"cut Selector");
return NO;
}
else if (action == NSSelectorFromString(#"_define:"))
{
NSLog(#"define Selector");
return NO;
}
else if (action == #selector(paste:))
{
NSLog(#"paste Selector");
return NO;
}
else
{
return [super canPerformAction:action withSender:sender];
}
}
and add another method to replace canPerformAction:withSender: with mightPerformAction:withSender:
- (void) replaceUIWebBrowserView: (UIView *)view
{
//Iterate through subviews recursively looking for UIWebBrowserView
for (UIView *sub in view.subviews) {
[self replaceUIWebBrowserView:sub];
if ([NSStringFromClass([sub class]) isEqualToString:#"UIWebBrowserView"]) {
Class class = sub.class;
SEL originalSelector = #selector(canPerformAction:withSender:);
SEL swizzledSelector = #selector(mightPerformAction:withSender:);
Method originalMethod = class_getInstanceMethod(class, originalSelector);
Method swizzledMethod = class_getInstanceMethod(self.class, swizzledSelector);
//add the method mightPerformAction:withSender: to UIWebBrowserView
BOOL didAddMethod =
class_addMethod(class,
originalSelector,
method_getImplementation(swizzledMethod),
method_getTypeEncoding(swizzledMethod));
//replace canPerformAction:withSender: with mightPerformAction:withSender:
if (didAddMethod) {
class_replaceMethod(class,
swizzledSelector,
method_getImplementation(originalMethod),
method_getTypeEncoding(originalMethod));
} else {
method_exchangeImplementations(originalMethod, swizzledMethod);
}
}
}
}
And finally call it in the viewDidLoad of the ViewController:
[self replaceUIWebBrowserView:self.webView];
Note: Add #import <objc/runtime.h> to your viewController then error(Method) will not shown.
Note: I am using NSSelectorFromString method to avoid detection of private API selectors during the review process.
Also you can hide menu:
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(menuWillBeShown:) name:UIMenuControllerWillShowMenuNotification object:nil];
...
- (void)menuWillBeShown:(NSNotification *)notification {
dispatch_async(dispatch_get_main_queue(),^{
[[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
});
}
The essential trick here is dispatch_async.
I just want to ask if how can I prevent keyboard popping out when it's pressing the UITextField? I have a UITextField and UIPickerView if I press the UITextField for the first time it's fine, it's showing the UIPickerView but then after i select in the UIPickerView then press the textfield again, instead of showing the UIPickerView again it shows the keyboard? I have this method on my UITextField when you click it it shows the UIPickerView:
- (IBAction)clickText:(id)sender
{
int tag = [(UITextField*)sender tag];
self.myPicker.hidden = NO;
selectedTable = tag;
[sender resignFirstResponder];
float yy = 10;
switch (tag) {
case 0: yy = self.txtLeasename.frame.origin.y + self.myPicker.frame.size.height;
break;
case 1: yy = self.txtFeet.frame.origin.y + self.myPicker.frame.size.height;
break;
case 2: yy = self.txtInches.frame.origin.y + self.myPicker.frame.size.height;
break;
default:
break;
}
}
How can i fix this kind of bug? Thank you very much!
Implement this Method and don't forget to assign the textfield.delegate to your controller
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
// Check if the given textfield is your textfield with the date picker.
if (textField.tag == 99) {
// Then add your picker to your view
UIDatePicker *pv = [[UIDatePicker alloc] initWithFrame:CGRectMakeZero];
[self.view addSubview:pv];
// And return NO
return NO; // Return NO prevents your Textfield from showing the Keyboard
}
return YES;
}
This should work for you:
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
int tag = textField.tag;
selectedTable = tag;
float yy = 10;
switch (tag) {
case 0:
self.myPicker.hidden = NO;
return NO;
case 1:
self.myPicker.hidden = NO;
return NO;
case 2:
self.myPicker.hidden = NO;
return NO;
default:
self.myPicker.hidden = YES;
return YES;
}
}
Are you looking for this?
UITextField Class Reference
inputView
The custom input view to display when the text field becomes the first responder.
#property(readwrite, retain) UIView *inputView
Discussion
If the value in this property is nil, the text field displays the standard system keyboard when it becomes first responder. Assigning a custom view to this property causes that view to be presented instead.
The default value of this property is nil.
Availability
Available in iOS 3.2 and later.
Declared In
UITextField.h
So just set the proper inputView for your UITextField in viewDidLoad or else where. Something like:
self.myTextField.inputView = self.myPicker
I'm trying to use the #PeyloW code that I found here How to navigate through textfields (Next / Done Buttons) but when I press the keyboard return button nothing happens. My tags are ok.
Header:
- (BOOL)textFieldShouldReturn:(UITextField*)textField;
Implementation:
- (BOOL)textFieldShouldReturn:(UITextField*)textField {
NSInteger nextTag = textField.tag + 1;
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder) {
[nextResponder becomeFirstResponder];
} else {
[textField resignFirstResponder];
}
return NO;
}
What am I missing? My keyboard doesn't have next done, only return. Keep in mind that I'm very new to iOS.
EDIT:
I tried to debug the code by adding a breakpoint to it and the code isn't being triggered.
I don't like solutions that incorporate the tag. Instead I would put all inputfileds in the desired order into an array and in -textFieldShouldReturn: use the given textfield to get it's index from in the array. Then I would get the object at that index.
- (BOOL)textFieldShouldReturn:(UITextField*)textField {
NSUInteger nextIndex = [arrayWithResponders indexOfObject:textField]+1 % [arrayWithResponders count];
UIResponder* nextResponder = [arrayWithTextFields objectAtIndex: nextIndex];
if (nextResponder) {
[nextResponder becomeFirstResponder];
} else {
[textField resignFirstResponder];
}
return NO;
}
You just added, that the breakpoints aren't triggered, so most likely you didn't set up the delegate.
I am trying to find a way to prevent the keyboard from appearing when the user taps on a TextField but could`t find a way to do it.
I tried this code after I linked my textField to delegate and still it did not work for me, the code was logging but the keyboard did appear.
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
NSLog(#"BeginEditing");
return YES;
[textField resignFirstResponder];
}
When I return with NO I lose the focus from the textField, which I need.
The textFields I have are filled with values from a buttons on the same view, thats why I don't want the keyboard to appear, and at the same time I want the user to select the textField they want to fill.
if you just want user to select the textfield to fill and does not want to keyboard to show up then you can do the following:
add tag to your textfields
change the code to this:
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
selectedTextFieldTag = textField.tag;
return NO;
}
use selectedTextField value to identify which textfield to fill in your code. return NO will not allow keyboard to appear.
This will help you for sure.
-(BOOL)textFieldShouldBeginEditing:(UITextField*)textField {
UIView *dummyView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
activeField.inputView = dummyView; // Hide keyboard, but show blinking cursor
return YES;
}
I tested and it is working for me. Hope this will be useful for others who have similar issue.
[textField resignFirstResponder]; will not be called because you are returning from the method before it can get called. Does that not fire a warning?
Try returning NO here or if that doesn't work, try disabling user-interaction on the text field:
[myTextField setUserInteractionEnabled:NO];
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
NSLog(#"BeginEditing");
[textField resignFirstResponder];
return YES;
}
so here you just use flag int variable to assign the value to focused textfield
define int i; flag globally in .h or .m file
after that in textField Delegate method use bellow code...
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
if (textField == yourtextField1 ) {
i=1;
}
else if (textField == yourtextField2 ) {
i=2;
}
else if (textField == yourtextField3 ) {
i=3;
}
else if (textField == yourtextField4 ) {
i=4;
}
return NO;
}
-(IBAction)yourbutton1_Clicked:(id)sender{
if( i == 1){
yourtextField1.text=yourbutton1.titleLabel.text;
}
else if ( i == 2){
yourtextField2.text=yourbutton1.titleLabel.text;
}
else if ( i == 3){
yourtextField3.text=yourbutton1.titleLabel.text;
}
else if ( i == 4){
yourtextField4.text=yourbutton1.titleLabel.text;
}
else{
NSLog(#"Please Click On TextField");//here you can put AlertView Message
}
}
and so on.......
also you can use common method with sender id of button and also tag......
I have an iPad application which has a sign up form within it. The form is very basic and contains only two UITextFields which are for Name & Email address.
The first TextField is for the candidates Name, When they enter their name in and press 'Next' on the keyboard I want this to automatically move to the next Email Address TextField to editing.
Any idea how I can set the next button the keyboard to jump to the next keyboard?
Thanks
You need to make your view controller the UITextField delegate, and implement the UITextField delegate method:
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
if (textField == nameField) {
[textField resignFirstResponder];
[emailField becomeFirstResponder];
} else if (textField == emailField) {
// here you can define what happens
// when user presses return on the email field
}
return YES;
}
Swift version:
func textFieldShouldReturn(textField: UITextField) -> Bool {
if textField == nameField {
textField.resignFirstResponder()
emailField.becomeFirstResponder()
} else if textField == emailField {
// here you can define what happens
// when user presses return on the email field
}
return true
}
You may also want to scroll your view for the emailField to become visible. If your view controller is an instance of UITableViewController, this should happen automatically. If not, you should read this Apple document, especially Moving Content That Is Located Under the Keyboard part.
Additionally to #lawicko 's answer I often change the button text to give that final finishing touch (e.g. says next when there are more fields and then done when on the last):
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
BOOL isLastTextField = //.. your logic to figure out if the current text field is the last
if (isLastTextField) {
textField.returnKeyType = UIReturnKeyDone;
} else {
textField.returnKeyType = UIReturnKeyNext;
}
}
Swift version of correct answer.
In my experience, you do not need to resignFirstResponder when switching textFields.
In this example, it's just your basic username and password textFields.
The keyboard "return key" in storyboard for username is set to "Next" and the one for password is set to "Done".
Then just connect the delegates for these two text fields and add this extension and you're pretty much done.
extension LoginViewController: UITextFieldDelegate {
func textFieldShouldReturn(textField: UITextField) -> Bool {
if textField == textFieldPassword {
self.view.endEditing(true)
} else {
textFieldPassword.becomeFirstResponder()
}
return true
}
}
A more consistent and robust way is to use NextResponderTextField
You can configure it totally from interface builder.
All you need to do is
Set the class type of your UITextField to be NextResponderTextField
Then set the outlet of the nextResponderField to point to the next responder it can be anything UITextField or any UIResponder subclass. It can be also a UIButton and the library is smart enough to trigger the TouchUpInside event of the button only if it's enabled.
Here is the library in action:
A Swift 4 extension. Just pass the array of UITextFields and it will connect each one to the next until the last one which resigns the first responder (hides the keyboard):
extension UITextField {
class func connectFields(fields: [UITextField]) {
guard let last = fields.last else { return }
// To reset the targets in case you call this method again to change the connected fields
fields.forEach { $0.removeTarget(nil, action: nil, for: .editingDidEndOnExit) }
for i in 0 ..< fields.count - 1 {
fields[i].returnKeyType = .next
fields[i].addTarget(fields[i + 1], action: #selector(UIResponder.becomeFirstResponder), for: .editingDidEndOnExit)
}
last.returnKeyType = .continue
last.addTarget(last, action: #selector(UIResponder.resignFirstResponder), for: .editingDidEndOnExit)
}
}
- (BOOL) textFieldShouldReturn:(UITextField *)textField
{
if (textField == self.textFieldName)
{
[self.textFieldName resignFirstResponder];
[self.textFieldPassword becomeFirstResponder];
}
else if (textField == self.textFieldPassword)
{
[self.textFieldPassword resignFirstResponder];
[self login:self];
}
return true;
}
#interface MLLoginViewController ()<UITextFieldDelegate>
#end
#implementation MLLoginViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.textFieldName.delegate = self;
self.textFieldPassword.delegate = self;
Make an outlet for the textfield, then
viewController.h
(IBAction)textFieldDoneEditing:(id)sender;
viewController.m
(IBAction)textFieldDoneEditing:(id)sender {
[textField resignFirstResponder];
if (textField == nameField) {
[emailField becomeFirstResponder];
}
}
Make the relation between (show the connections inspector > Sent Events)didEndOnExit and textFieldDoneEditing