hello all i am working with multiple uitextfields.i have a problem in cursor placing while changing firstResponder. i would like to do "Cursor placement in 2nd field once we entered the 3rd character in the 1st field." but the cursor stays in 3rd place.here i am restricting my first text field length to 3.
This SO answer should help you. You set up notifications to be issued when the first text field state changes, firing a method that checks the text field's length. If firstTextField.text.length is equal to three characters, call [secondTextField becomeFirstResponder].
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I need to make a long TextFormField to insert a lot of phones(for example maxLines:10). Each line is a single phone. Have no idea how to make my keyboard with numbers and break (next line) button only.
TextInputType.number and TextInputType.phone cannot make a new line.
What to do?
why don't you display the lines as a list view/column and add a row each time you will enter the next number - so instead of one field with wrapped lines use multiple input fields
I have 3 textfields, which can hold at most one character. If a character is entered in first textfield, then the focus should automatically shift to the second and so on.
For this, I used textField:shouldChangeCharactersInRange:replacementString:
Going by this, I could check the length of my textfield and assign first responder status to the next textfield.
When i type a character in the first textfield, the character is displayed in the textfield, but the focus doesn't automatically shift to the next textfield. It shifts only when I enter the next alphabet, where it tries to check the condition, and thereby it fails, and then only the focus shifts to the next textfield.
IS there anyway where, the focus should be shifted to the second, just after the first character is entered.
Try checking the length of the replacementString parameter instead of that of the textfield
Call
- (BOOL)becomeFirstResponder
on it. You can check that it can become first responder with the method
- (BOOL)canBecomeFirstResponder
I am making an application in which i have use a keyboard for input in text field. Now my client requirement is that he need a substitute of keyboard input for text field. Basically i have need increment and decrement value of text field. SO i need some other function which is used for increment and decrement value of text field. For that i have use keyboard and now i require any other function like increment and decrement operator or tap to increment and decrement text or any thing else. What i used for that purpose?
Thanks in advances...
Put a pair of up/down buttons next to the text field. UIButtons will still work when the keyboard is visible. You can also hide these buttons when they aren't needed.
I have a UITextField which I created programmatically. This text field is used to input a time. The placeholder text is "00:00:00.000". When the text field is tapped, a number pad will appear. Ideally, I want the gray place holder text to remain as the user types. As they enter a number, it replaces the gray zeros in the place holder text and skips over the colons and period (leaving the format intact without the user entering any punctuation). If it is not possible to keep the place holder text and replace it as the user types, I would like the punctuation to automatically be entered.
Thanks in advance!
iOS has a UIDatePicker control for this, if you want to go the way you are going then you will have handle all the user input your self.
I have a text field that is always of the format "XX0000000XX", X being a letter, 0 being a number. I switch keyboards as the user is typing depending on whether they need to enter a number or letter.
This works fine, until the user positions the cursor in the middle of the text field to make an edit. How do I determine the cursor position within a UITextField?
I know a UITextView has a selectedRange that can be used, but I've read that you can't force a UITextView to be single line entry? i.e. Disable multiple lines of text.
Clever bit with the keyboards. My immediate thought is that perhaps that you shouldn't allow the user to move the cursor in the first place.
This isn't without precedent in the iPhone UI. The telephone keypad view, for example, restricts the user to sequential input. I have also found this technique useful for currency input. Anywhere with input that has a very rigid syntax, basically, seems like a candidate for this kind of treatment. Might work well for your situation.
Not sure if this is the best method, but here's how I do it:
A UITextField to capture input and a UILabel to display the input. The text field is hidden but is sent becomeFirstResponder to trigger the keyboard. As the user types, delegate methods do their thing to format the text, if necessary (as with currency), and update the UILabel, which provides the user feedback on their input.
Depending upon the situation, you may wish to style the UILabel in such a way that makes it clear the user can't use it as they would a selectable text field while reassuring them that it is, in fact, their input.
With 11 characters in play, I can see how curser editing might be useful. Still, phone numbers are often in that same range and I never have a problem with the sequential editor in the Phone app.
There's a UITextDelegate method -textField:shouldChangeCharactersInRange:replacementString: which should be all you need to do what you describe. Implement it to enforce whatever formatting rules you want. You shouldn't care where the cursor is, just the range of the change that's proposed.