Reputation: 5640
I got a TextView
that is supposed to show upon a button press, and let the user enter text through the keyboard.
- (IBAction) changeName {
changeNameBtn.hidden = YES;
backBtn.hidden = YES;
usernameLabel.hidden = NO;
inputTextField.hidden = NO;
[inputTextField becomeFirstResponder]; // to show keyboard
}
This works fine for most of us.
But the Keyboard does not show for some of my testers, at a geographically remote location. How to trouble shoot this? And what could be the reason for the different behavior of our devices? It works fine for me and everybody else. We all use the same devices (iPod, iOS 4.1 - 5.1).
First thing I tried did not work:
I guessed that the inputTextField did in some way not become visible in time, before becomeFirstResponder
was fired, so I added setNeedsDisplay
as I thought that would force an update.
[inputTextField setNeedsDisplay];
[inputTextField becomeFirstResponder];
Second thing I tried did not work:
if([inputTextField canBecomeFirstResponder]){
[inputTextField becomeFirstResponder];
}
Third thing I tried is a workaround, requiring the unlucky user to press the field:
- (IBAction) inputTextFieldTouch {
[inputTextField becomeFirstResponder];
}
This workaround works, but there must be a better way. Please enlighten me about what I am doing wrong! :) And how to approach issues like this without being able to duplicate it myself?
Upvotes: 18
Views: 15519
Reputation: 2596
In case anyone stumbles upon this question AND you are using multiple UIWindow
s in your app - make sure your desired UIWindow
, where the element you are making first responder on, is isKeyWindow == true
. If not - call makeKeyAndVisible()
on it.
Upvotes: 1
Reputation: 1027
I called becomeFirstResponder
later by this line:
[self.searchBar performSelector:@selector(becomeFirstResponder)
withObject:nil
afterDelay:0.1f];
It worked for me. Hope this help.
Upvotes: 27
Reputation: 781
As of iOS8, calling becomeFirstResponder on a UITextView doesn't show the keyboard for me on the iOS simulator, but it does on the real device. So be sure to check it with an actual device. This doesn't happen on iOS7 though.
Upvotes: 5
Reputation: 316
The textview has not finished being drawn by the time you try to make it the first responder.
You can try animating the appearance and setting the first responder in the completion block.
[UIView animateWithDuration:0.0 animations:^{
[view addSubview:textView];
} completion:^(BOOL finished){
[textView becomeFirstResponder];
}];
Upvotes: 10
Reputation: 25927
Try to see if you can show the keyboard first:
if([inputTextField canBecomeFirstResponder]){
[inputTextField becomeFirstResponder];
}
Upvotes: -1