Using next and previous button with UITextField, problems with firstresponder - ios

I am using a subclass of a scrollview that moves the keyboard out of the way. (TPKeyboardAvoidingScrollView)
I think this is conflicting with my implementation of the next and previous buttons. I have built an inputaccessoryview
I have a category that sets the next and previous textfields for each field
when i edit a textfield, i set the current, previous and next textfields
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
_currentTextField = textField;
_prevTextField = [textField prevTextField];
_nextTextField = [textField nextTextField];
return YES;
}
when they click next or previous i call this method
- (void)selectAdjacentResponder:(id)sender{
UISegmentedControl *segmented = sender;
if(segmented.selectedSegmentIndex == 0){
[_prevTextField becomeFirstResponder];
} else {
[_nextTextField becomeFirstResponder];
}
}
this works fine.. but when i close the keyboard. my scrollview is messed up. if i add the line
[_currentTextField resignFirstResponder];
to the first line of my selectadjacent method it solves the problem. but the problem is it makes the screen focus in a funky way since i'm dismissing and accessing the next textfield at the same time.
i have tried resigning first responder when i close the keyboard. but i think my scrollview is calculated before that point.. any idea what to do =/

Related

How to set focus not on the UITextView when it is shown?

In some cases when the UITextView in shown, I want it does not show focus and soft keybaord, when user clicks on it, both will show.
But in some other cases, I want the focus and soft keybaord shown when the UITextview is shown.
I know how to show the focus but I don't know how to let UItextview lose focus.
Any help is appreciated. thank you!
-(void)viewWillAppear:(BOOL)animated {
if(isEditMode) {
[self.textView becomeFirstResponder];
} else {
[self.textView resignFirstResponder];
}
.....
}
UITextView is a subclass of UIResponder.
To make text view first responder (get focus) use:
textView.becomeFirstResponder()
To make text view resign first responder (loose focus) use:
textView.resignFirstResponder()

Detect when a user presses the space button

I currently have my keyboard set so the type is Numbers and Punctuation [so users can type in a hypen symbol]. Does anyone know how to detect if the user presses the space bar so I can automatically set the style to a different keyboard type [in my case letters] so I don't have to build a custom keyboard?
Try this code - I am sure that it will detect if a space character is coded in - I have not really tested how well the keyboard switch works. You should also try it out without the resignfirstresponder becomefirstresponder code once the code below is working. Good Luck! (PS your viewCOntroller needs to be declared as a UITextview or textfield Delegate)
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText: (NSString *)text_message {
if ([text_message isEqual:#" "]) {
// Put your code to change the keyboard then refresh the screen.
[textView resignFirstResponder]; //close textview or textfield
[textView setKeyboardType:UIKeyboardTypeDefault];
[textView becomeFirstResponder]; // opens keyboard for textfield or textview
[self.view setNeedsRefresh]; // refresh view
// return NO;
}
return YES; //go back to editing
}

Tabbing uiTextFields like in simulator

I am building a forms based application and i have noticed that while in the simulator using the hardware mac keyboard i am able to tab between form fields in a table using the standard tab key.
Is there a way i can call this functionality from my TextView when the didReturn method is fired? I have seen numerous threads on here with various ways to achieve something similar but they all seem overly complex and bulky using view tags for big loops which is not ideal compared to perhaps just firing a TAB keyboard command?
All you need to do is set a nextButton on your view, or inputAccessoryView for all the textFields and on selector of that button write code to make nextTextField a first responder.
By this way you can implement that tab feature. As you know there's no tab button on your iPhone ;).
You can do it via UITextField delegate method:
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
NSInteger nextTag = textField.tag+1;
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder) {
[nextResponder becomeFirstResponder];
}
else {
// Do what ever want to do for last textfield
[textField resignFirstResponder];
}
return NO;
}
Set you textfields tag, sequentially & set delegate. Pressing return key in for moving to next textfield.
Hope this helps.. :)

Tapping between UITextFields in iOS7

When a UITextField is selected and has a keyboard shown, if I tap other parts of the view the keyboard disappears.
If I tap another UITextField, the keyboard stays up, the first textfield is deselected, and nothing happens. Then I need to tap on the other UITextFIeld again for selection to happen and a keyboard to appear.
Is there a way to make a second UITextField immediately accessible when a first UITextField is selected?
If you reload the tableview in textFieldDidEndEditing, you'll break selection in this way. Don't do that.
try it, press another view should call below fn.
-(void)disappearKey{
[self.view endEditing:YES];
}
after keyboard disappear, Tap any textfield, will appear keyboard.
First of all I think its a bug that the keyboard is not dismissed and opened again when tapping on another UITextField or UITextView. It should be reported and Apple should fix it.
Using the textfield delegate methods and registering for keyboard notification it should be possible to manually keep track if the user tapped on another textfield and the keyboard did not close and reopen. At the very least you should be able to detect when this is happening and close the keyboard manually by [textField resignFirstResponder];
The keyboard notification are as follows:
UIKeyboardWillShowNotification
UIKeyboardDidShowNotification
UIKeyboardWillHideNotification
UIKeyboardDidHideNotification
I'm''pretty sure you know the UITextfield and textview delegate methods
– textFieldShouldBeginEditing:
– textFieldDidBeginEditing:
– textFieldShouldEndEditing:
– textFieldDidEndEditing:
I am not in an active project at the moment so I'm not sure if I just ignored the problem but I can't recall this happening to me.
you can use BSKeyboardControls. just see the demo and decide to
use or not.
or you can do you have to set tag in sequence to the each textfield
in uiview. then use the below code.
-(BOOL)textFieldShouldReturn:(UITextField*)textField
{
NSInteger nextTag = textField.tag + 1;
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder) {
[nextResponder becomeFirstResponder];
} else {
[textField resignFirstResponder];
}
return NO;
}

Remove keyboard when table cell selected

I have a modal set up like this:
Despite appearances, the first two fields are UITextFields that become first responders and display the keyboard. The third 'Department' item is a table view and pushes another view.
I have implemented a scroll view so that while either of the fields is being edited, the user can scroll around and reach the department cell:
When it is selected, before the push, I would like to hide the keyboard. It's a small detail, but try adding a new event on Apple's 'Calendar' app. It opens with the first text field as first responder (so keyboard is present). If you select the start/end cell, the keyboard hides as the next view is pushed.
How do I achieve this? As a test I tried:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"hiding keyboard");
if ([ingredientName isFirstResponder]) {
NSLog(#"resigning name field");
[ingredientName resignFirstResponder];
}
else if ([ingredientAmount isFirstResponder]){
NSLog(#"resigning amount field");
[ingredientAmount resignFirstResponder];
}
}
The logging confirms that these are getting called. But the keyboard does not hide. It simply stays in place as the view slides out. And on return, the previous field still has focus (and the keyboard is out).
Any ideas?
resignFrstResponder will not dismiss the keyboard when you're using a modal view.
Another dev found a workaround for this behavior here: http://viraj-workstuff.blogspot.com/2010/12/resignfirstresponder-does-not-hide.html
Not terribly elegant, but try stealing the firstresponder status with an ad-hoc, invisible UITextField:
-(void)dismissKeyboard {
UITextField *textField;
textField=[[UITextField alloc] initWithFrame:CGRectZero];
[self.view addSubview:textField];
[textField becomeFirstResponder];
[textField resignFirstResponder];
[textField removeFromSuperview];
// [textField release] // uncomment if not using ARC
}
Two things:
Are you using a segue for pushing that other VC? If so, resign the keyboard in the prepareForSegue method.
If not, try using willSelectRowForIndexPath instead of didSelectRowAtIndexPath

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