Question

The keyboard that comes up with MFMailComposeViewController does not have any means to dismiss the keyboard once it comes up.
Does anyone have an idea of changing the keyboard. There are no UITextField exposed as you are actually in mail client at the time.

Answer 1

The MFMailComposeViewController doesn’t have a “Done” button, because it assumes you will use that button as a return key (to make a new line).

If you really wanted to change the button to a “done” button, there is only one way I can think to do it:

1. Create a new MFMailComposeViewController.
2. Enumerate through [[mailComposer view] subviews].
3. Inspect each subview (and subviews of subviews, if required).

4. When you’ve found the UITextView that is the body, do the following:

   // Get the UITextView from subview inspection
   UITextView *textView;
   
   // Declare this instance variable in your class @interface
   id <UITextViewDelegate> originalTextViewDelegate;
   
   // Get the original delegate
   originalTextViewDelegate = [textView delegate];
   
   // Override the delegate
   [textView setDelegate:self];
   
   // Set the return key type
   [textView setReturnKeyType:UIReturnKeyDone];
   

5. Return YES on -textViewShouldEndEditing. Implement ALL UITextViewDelegate methods, and call originalTextViewDelegate (kind of like calling “super” on a subclass).

   - (BOOL)textViewShouldEndEditing:(UITextView *)textView
   {
       [originalTextViewDelegate textViewShouldEndEditing:textView];
       // Important: return YES, regardless of originalTextViewDelegate's response 
       return YES;
   }
   
   - (void)textViewDidChangeSelection:(UITextView *)textView
   {
       [originalTextViewDelegate textViewDidChangeSelection:textView];
   }
   
   - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
   {
       return [originalTextViewDelegate textView:textView shouldChangeTextInRange:range replacementText:text];
   }
   
   // etc
   

That should work, but no guarantees. Hope that helps! 😀