TextFieldShouldBeginEdit will call two times;

[JianiOS]

I put a UITextfield on view A and regist InputDoger Service for view A. Then I write code in textFieldShouldBeginEditing.
I found that this method will call 2 times when I try to tap the textfield and input something.
How can I solve it? Please.

[molon]

Then MLInputDodger have to do something with first responder view in keyboardWillShow: when getting the UIKeyboardWillShowNotification notification.
becomeFirstResponder will post the UIKeyboardWillShowNotification notification internally if succeed.

MLInputDodger calls canBecomeFirstResponder to check whether the view can become first responder to predict the becomeFisrtResponder would succeed.

MLInputDodger/Classes/UIView+MLInputDodger.m

Lines 26 to 32 in 08df7f4

	- (BOOL)__MLInputDodger_hookBecomeFirstResponder
	{
	if ([self canBecomeFirstResponder]) {
	[[MLInputDodger dodger] firstResponderViewChangeTo:self];
	}
	return [self __MLInputDodger_hookBecomeFirstResponder];
	}

canBecomeFirstResponder calls textFieldShouldBeginEditing when it's a UITextField. And becomeFirstResponder calls canBecomeFirstResponder too.
So textFieldShouldBeginEditing would be called twice. It's terrible, but no better way now.

Tips: I tried to get the current first responder in callback of UIKeyboardWillShowNotification. But I gave up finally. Because the notification would be not posted when the keyboard type and frame doesn't change in iOS7.

I think it's no much impact for using usually. Because textFieldShouldBeginEditing just expect simple BOOL value which indicates whether can become first responder.

I'm looking forward to a good solution to solve it. :)