I am working on an app that uses voice commands to maneuver through text fields. What I need to do is translate the voice command into a touch event on the keyboard. Specifically I need to access the tab key and the return key. The user will not be using the keyboard in this app. I am having a difficult time finding a way to get this done. I know how to convert the voice commands into something that I can use, but I still need to apply that to the keyboard commands. I have researched this extensively and I get what I think are bits and pieces of what I really need, but nothing is connecting the dots for me.
You don't need the keyboard to navigate text fields. You just need to modify the first responder. There unfortunately isn't an easy way to get the current first responder, but you can search for it.
Once you have the first responder, you can move to the next field like this:
[[field nextResponder] becomeFirstResponder];
If you are trying to do this in a very general way, you should first call canBecomeFirstResponder and handle situations where there there are no available first responders and other corner cases, but this generally isn't needed for very simple interfaces.
If you want to manage "enter" in order to end editing and dismiss the keyboard, you can call endEditing: on the superview.
You can modify text without the keyboard by replacing the text property.
Related
I want to create a 4 character custom password entry like the iPhone lock screen page. It's going to have a custom designed keyboard pinpad, but thats not the question. I have 4 boxes for the entry of the pin, and each box is separated and has its own custom design. I currently have a clear UITextView on top of each box. However, I'm not really sure how to link all these together so that when I enter a number in the first box, it automatically advances to the next box so I can type the next number. After the last number has been entered, it should automatically check to see if the password is correct and if so do some action. What is the best way to do this?
When implementing UITextFieldDelegate you should check on textField:shouldChangeCharactersInRange:replacementString:
and you can move keyboard focus to next UITextField via BecomeFirstResponder documentation
So on last UITextField you will hide keyboard and disable all UITextboxes automatically, but If I were you, I would prefer to provide button to start checking pin (to let user correct pin if mistyped)
I want to keep the place holder text shown while it is focused (that is, while it is the first responder). It should stay that way only until something is typed and the field no longer blank.
Address Book app's Search bar behaves like this, as do the new contact entry fields.
Is there any way to do that?
I don't think this comes "built in" for you to activate it, but you can build it rather easily on your own: Create a UILabel you want to display and when the focus is set onto the TextField place the UILabel at the right spot (slightly after the cursor).
As soon as the user enters a character you hide the UILabel. You can see when the user starts the edit and starts to type by adding your class as delegate to the UISearchBar (see callbacks "searchBar:textDidChange:" and "searchBarTextDidBeginEditing:"): http://bit.ly/eQlvRz
I was wondering whether any of you may have an idea how to mimic the behavior of the native Mail app on the iPhone, when selecting email contacts in the To/CC lines.
If you note carefully, when touching that line the keyboard opens and you get a cursor, which is like the normal behavior of a UITextField. However, after keying a name and selecting it, the name is added inside a blue bubble. Still fine - one could create the bubble and move the text field. However, if you go back using the backspace key - the blue bubble becomes marked (darker blue), the cursor disappears, but the keyboard stays visible.
Any idea how to accomplish that?
Thanks!
Ariel
Check out the Three20 control library from the Facebook: https://github.com/facebook/three20
Either the TTMessageController, or the TTPickerTextField control are what you want. For using TTPickerTextField there's a good demo here: https://github.com/shayne/TTPickerTextFieldDemo
I have an application that allows the user to edit multiple text fields and views. Rather than mess around raising each view to the top when the keyboard is active, I decided to instead make one textView for editing and hide/show it when input is needed, then transfer the data when it is done. To move focus to the new textView, I call its becomeFirstResponder method, and lo and behold, the cursor goes to the right place. However if I use this method, the iPhone keyboard does not appear. I have no idea why. Can anyone explain, and tell me how to make the keyboard appear? All the other questions I've looked at seem to indicate that setting becomeFirstResponder for a textView ought to make the keyboard come up.
-Ash
Is Hardware -> Simulate Hardware Keyboard enabled?
Are you doing this whole thing programatically or using Interface Builder as well?
If so are the IB connections setup right?
I display a UITextView that I want the user to be able to copy from but not edit. There must be no keyboard present on the screen during the copy.
If I prevent first responder then the keyboard stays hidden. However this also prevents processing of events from touches that would allow a copy interaction. It also has to be editable to process touches as far as I know.
Is there an easy way to achieve this; a read-only, copy-only, no-keyboard UITextView? The docs are very terse on what "editable" guarantees, requires, and how is changes behavior.
Have you tried setEditable: NO? I know you say the docs don't describe it much, but they do say that it controls whether the receiver is editable. Did you try?
You've tried that, and the answer is to set editable to NO.