Question

This is the flow of my app. 1st view -> 2nd View -> 3rd View

On 3rd view, when I click on any row of tableView one UIView gets displayed, which has one textField which accepts only numbers. For this I have implemented UIKeyboardWillShowNotification and displayed a UIButton for ‘dot’ button on the down-left corner of keyboard (For this I have created two images and sets that image to UIButton object).

My problem is, After using this custom keyboard(for 2-3 times), when I redirect form 3rd view to 1st View, This UIButton (with dot image) is appearing on 1st view. I have used default keyboard at there but this image not getting away.

While moving from 3rd view to 1st view, I m removing Observer for the keyboard notification which I have registered earlier & also I m checking wether,

if ([dotButton retainCount] > 0) {

    [dotButton release];
    dotButton = nil;
}

I have allocated dot button only once in viewDidLoad.
I m using popToRootViewController method to go back to 1st view from 3rd view.

I dont want to display this dot button on my 1st view. How can I do this.

Answer 1

Follow this steps
1) First make the doneButton an instance varible of your class, this will help u maintain the reference to the button
2) Add this code at the beginning of ur keyboardWillShow:(NSNotification *)note method

if(dotButton){
[dotButton removeFromSuperview];
dotButton = nil;
}

and one more thing implement UIKeyboardWillHideNotification method with NSNotificationCenter and perfrom step 2 over there.