So I want to bring in a modal view controller that has a UITextView in it and I want the keyboard to automatically popup and the UITextView have focus.
I found a way
That does seem somewhat hackish.
The Cocoa Touch terminology for 'having focus' is 'first responder' and UITextView
s will display their keyboards when they are the first responder. I can think of several techniques to make the UITextView become the first responder, but the easiest is probably in your view controller's viewWillAppear or viewDidAppear methods:
- (void)viewWillAppear:(BOOL)animated { [myTextView becomeFirstResponder]; [super viewWillAppear:animated]; }
[textView becomeFirstResponder];
When you want the focus to be that particular TextView on loading a ViewController, you can place the textView.becomeFirstResponder() in the ViewDidLoad overrode func as below:
override func viewDidLoad() {
super.viewDidLoad()
textView.becomeFirstResponder()
}
I find this works without any errors
On Xamarin Forms Custom Render:
protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
{
base.OnElementChanged(e);
if (Control != null)
{
Control.BecomeFirstResponder();
}
}
Swift:
textView.becomeFirstResponder()
Since UITextView
inherits from UIResponder
(indirectly, it actually inherits from UIScrollView
, which inherits from UIView
which then inherits from UIResponder
) you can call the -becomeFirstResponder
method on your text field, which will cause it to become the first responder and begin editing:
[textView becomeFirstResponder];