Obj-C - Dismiss keyboard by tapping anywhere on screen from UITextView? - ios

Question

When my user taps on my UITextView (NOT uitextfield...), an animation occurs. However after the UITextView begins editing, no other UITapGesture seems to be recognized (e.g. if I add a tapGesture to my UIView to dismiss this animation, it doesn't execute at all). I've been trying to fix this for what feels like forever. Help is appreciated, I'm stumped.
ViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
self.replyField.delegate = self;
[self.replyField setUserInteractionEnabled:YES];
UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(textViewTapped)];
[self.view addGestureRecognizer:gestureRecognizer];
}
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
return YES;
}
-(void)textViewTapped {
NSLog(#"DISMISS PLEASE!");
[self animateTextView:NO];
}
- (void)textViewDidBeginEditing:(UITextView *)textView
{
[self animateTextView: YES];
self.replyField.gestureRecognizers = nil;
}
- (void)textViewDidEndEditing:(UITextView *)textView
{
[self animateTextView:NO];
}
- (void) animateTextView:(BOOL) up
{
const int movementDistance = 206;
const float movementDuration = 0.3f;
int movement= movement = (up ? -movementDistance : movementDistance);
NSLog(#"%d",movement);
[UIView beginAnimations: #"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.inputView.frame, 0, movement);
[UIView commitAnimations];
}
- (void)textViewDidChange:(UITextView *)textView
{
}

Answer 1

Your problem is not related to gesture recognizer.
Problem caused by line:
self.view.frame = CGRectOffset(self.inputView.frame, 0, movement);
You set frame for self.view from self.inputView with offset.
And when self.view size is changed, its subviews (including text view) may have positions out of superview bound. And UIView doesn't respond touch event if touch point is out of superview bounds.
You can easily check this by setting background color for views and show they frames in log:
...
- (void) animateTextView:(BOOL) up
{
NSLog(#"self.view state1:%#", self.view);
NSLog(#"self.replyField state1:%#", self.replyField);
self.view.backgroundColor = [UIColor redColor];
self.replyField.backgroundColor = [UIColor blueColor];
const int movementDistance = 206;
const float movementDuration = 0.3f;
int movement= movement = (up ? -movementDistance : movementDistance);
NSLog(#"%d",movement);
[UIView beginAnimations: #"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
//self.view.frame = CGRectOffset(self.inputView.frame, 0, movement);
self.replyField.frame = CGRectOffset(self.replyField.frame, 0, movement);
[UIView setAnimationDidStopSelector:#selector(afterAnimationStops)];
[UIView commitAnimations];
}
- (void)afterAnimationStops {
NSLog(#"self.view state2:%#", self.view);
NSLog(#"self.replyField state2:%#", self.replyField);
}
...
Also what is self.inputView? is it properly set?
BTW: What goal of the code? Do you want to move text view to avoid overlapping by keyboard? Then consider placing it in UIScrollView.
e.g see discussion here: How to make a UITextField move up when keyboard is present?.

Answer 2

I have encountered similar issues use follow below code to dismiss keyboard by tapping anywhere on screen view. Hope will helpful to you.
Objective c
- (void)viewDidLoad
{
UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(dismissKeyboard)];
[self.view addGestureRecognizer:gestureRecognizer];
gestureRecognizer.cancelsTouchesInView = NO;
}
- (void)dismissKeyboard
{
[self.view endEditing:YES];
}
Swift 4
func viewDidLoad() {
let gestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard))
view.addGestureRecognizer(gestureRecognizer)
gestureRecognizer.cancelsTouchesInView = false
}
func dismissKeyboard() {
view.endEditing(true)
}

Answer 3

In ViewDidLoad :
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]
initWithTarget:self
action:#selector(dismissKeyboard)];
[self.view addGestureRecognizer:tap];
Create one method :
-(void)dismissKeyboard {
[textView resignFirstResponder];
}

Answer 4

Not clearly understand what you want BTW let me explain.
First of all if you want to hide your keyboard you can do it by single line code.
Objective C
[self.view endEditing:YES];
Swift
view.endEditing(true)
Now in your code, you added tap gesture on self.view it means if you touch main view anywhere then your gesture method will be call. If you want that my keyboard will be hide when I touch on main view then in tap gesture's method you should write above code ([self.view endEditing:YES];) But make sure keyboard will be open if you tap on your textView.
But If you want keyboard should not open when I click on UITextView then there are many ways but follow below
Objective C
UIView* dummyInputView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
myTextView.inputView = dummyInputView;
Swift
let dummyInputView = UIView(frame: CGRect(x: 0, y: 0, width: 1, height: 1))
myTextView.inputView = dummyInputView
Here keyboard will not be open but cursor will be blinking if you want to hide cursor then you can do by below code
Objective C
myTextView.tintColor = [UIColor clearColor];
Swift
myTextView.tintColor = UIColor.clear
If you have any issue then do comment.

Answer 5

In viewController you can do this
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
[self.view endEditing:Yes];
}