TextField Previous and Next not appear

[liufengyu]

on ViewController when I add TextField to a subView of self.view

[hackiftekhar]

Prev Next will appear if there are more than 1 sibling textField

[liufengyu]

I add 3 textField but not appear, when add to self.view they appeared

[hackiftekhar]

You added 3 textField but doesn't appear? when you added to self.view they appeared? didn't understand. Both are looking like same statement.

[oliverfoggin]

Is there any way to get IQKeyboardManager to search up and down the view hierarchy? I have a view laid out with multiple nested UIStackViews (a common use case for stack views) and I can't find a way to get the next rev to appear.

Would be awesome to have a way of manually setting them like a delegate callback "nextTextFieldForCurrentTextField" etc...

Or even just an array of text fields for the manager to iterate through.

IQKeyboardManager.sharedManager() = [firstTextField, secondTextField]

Etc...

If you can point me in the right direction in the project I'd be happy to update it and make a pull request.

[oliverfoggin]

I added a couple lines of code... not in a PR yet but possibly soon.

Anyway...

///------------------
/// MARK: AutoToolbar
///------------------

/** Get all UITextField/UITextView siblings of textFieldView. */
private func responderViews()-> [UIView]? {

    if let overriddenTextFields = overrideIteratingTextFields {
        return overriddenTextFields
    }
    ... rest of the method...

and a new property...

public var overrideIteratingTextFields: [UIView]?

And all I need to do is...

    IQKeyboardManager.sharedManager().overrideIteratingTextFields = [
        nameField,
        cardNumberField,
        expiryDateField,
        cvvField
    ]

and it works fine. Just need to set it back to nil in viewWillDisappear

@liufengyu you may be able to use the same thing here to force the next/prev buttons to appear.

[hackiftekhar]

That's a bit of extra manual management and need to take extra care in viewWillDisappear. This is not we want in a library, @oliverfoggin We may need to come with a generic solution which should do the trick without any external textField references.

[oliverfoggin]

@hackiftekhar true. But in this case the automatic part of the library isn't working. You could make it recursively search for all UITextFields but not sure how that would perform (also a possibility of getting text fields that currently aren't visible etc...)

This was a quick hack for me and works until something better is done.

[hackiftekhar]

Yeah you totally correct It's a quick hack this is why it's not suitable for a open source library used by many developers. We may need to come up with a generic solution by combining toolbarManageBehaviour with IQPreviousNextView.

[oliverfoggin]

@hackiftekhar I didn't say it was suitable. I merely pointed out how I had forced it to work. I had 20 minutes to get this working. I wouldn't have submitted this but something similar. Anyway, it is working for me now and if I remove the update then it doesn't work so I'm happy. Do whatever you think is necessary.

[oliverfoggin]

@hackiftekhar please could you explain what the toolbarPreviousNextAllowedClasses property does?

I have added this...

    IQKeyboardManager.sharedManager().toolbarPreviousNextAllowedClasses = [UIStackView.self, UIView.self]

But it is still not showing prev or next arrows.

Going to have to put my hack in again to fix this. Thanks

[hackiftekhar]

This property treats all it's inner subviews as part of siblings to navigate through. I'm not sure why it doesn't work for you.

[oliverfoggin]

@hackiftekhar I think the problem (possibly) is that it only goes one level deep.

My view hierarchy is...

UIStackView
    -UIStackView
        -UITextField
    -UIStackView
        -UITextField

So it would need to go up twice and down twice to find the next/prev text field.

It's actually more complex than this but it shows as an example.

As much as I'd love for there to be an automatic way to solve this I think it would be much easier to add a manual method to override it like my example above.

[hackiftekhar]

ok, I think you should put all this hierarchy inside IQPreviousNextView (On top of the most top UIStackView), so it will find all inner textFields.

[oliverfoggin]

@hackiftekhar ah! That works! Thanks :D