Hi I am working on an iphone application and want to handle keyboard events in iphone. In Mac, there is a class NSEvent which handles both keyboard and mouse events, and in ios (iphone/ipad) the counterpart of NSEvent is UIEvent which handles only touch events. I know ios API does not provide this functionality, but how can i handle key events in iphone??? Any good tutorial or sth, to get started...
You cant directly code for keyboad;s key and there is no mouse in case of device.
you can make your logics for different kind of charectersets or you can make your logics in textField delgate methods or Textview Delegates method
textView delegate
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
textField delegate
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
You can also use Notification for textField and Textview.
For TextField use this
call this register method in viewDidLoad
-(void)registerForTextFieldNotifications {
NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
[notificationCenter addObserver:self
selector:@selector (handle_TextFieldTextChanged:)
name:UITextFieldTextDidChangeNotification
object:self.textField];
}
- (void) handle_TextFieldTextChanged:(id)notification {
if([iSinAppObj.passCodeString isEqualToString:lockTextField.text])
{
//code here
}
}
and for text view you need to change only event name like this
[notificationCenter addObserver:self
selector:@selector (handle_TextFieldTextChanged:)
name:UITextViewTextDidChangeNotification
object:self.textField];