KeyBoard

how to dismiss keyboard when taps non-editable area on the screen

• method1

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    for (UIView * txt in self.view.subviews){
        if ([txt isKindOfClass:[UITextField class]] && [txt isFirstResponder]) {
            [txt resignFirstResponder];
        }
    }
}

• method 2

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [self.view endEditing:YES];
}

• method 3 ```objective-c

  dismiss decimal pad:

  UITapGestureRecognizer *tapRecgonizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)]; [self.view addGestureRecognizer:tapRecgonizer];
• (void) tap: (UIGestureRecognizer* ) gr { NSLog(@"YES, YOU JUST TAPPED"); [self.view endEditing:YES]; } ```

How to set keyboard return action?

//1: add UITextFieldDelegate and set delegate to the view controller
//2: implement textFieldShouldReturn method
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
}

how to move view up when keyboard shows up

1. add listener to keyboard show or hide
   
2. set the center (up keyboard height: 216px) when keyboard shows
   
3. reset to original center after keyboard hide
   reference reference

keyboard display same animation as other views?

ref