uitoolbar中的完成按鈕

是否有任何限制uitoolbar中的完成按鈕的框架。我希望它被定位到版權。我面臨的問題是，即使我在uitoolbar中點擊完成按鈕之外，完成按鈕的操作也會被調用。我只想在用戶點擊它時調用done操作。任何人都可以告訴我，我應該在下面的代碼中做什麼。uitoolbar中的完成按鈕

UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(doneWriting:)]; 

UIBarButtonItem *flexible = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; 
//flexible.width=310; 
[toolBar setItems:[NSArray arrayWithObjects:flexible,doneButton, nil]]; 
[doneButton release]; 
[flexible release]; 

labelItems = [[UITextView alloc] initWithFrame:(IS_IPAD ? CGRectMake(20, 5, 550, 70) : CGRectMake(10, 0, 223, 40))]; 
labelItems.delegate=self; 
labelItems.font = [UIFont fontWithName:@"Arial" size:(IS_IPAD ? 33 : 15)]; 
labelItems.inputAccessoryView = toolBar;

來源

2013-02-02 Sathish