iOS 键盘上边按钮

uitextfield * rightField；

 rightField.inputAccessoryView = _buttonView;

-(void)textFieldDidBeginEditing:(UITextField *)textField{

 

    _commitBtn.frame = CGRectMake(0, 0, winsizeW, 55 * AUTO_6_X);

    [_buttonView addSubview:_commitBtn];

    

}

- (void)textFieldDidEndEditing:(UITextField *)textField {

    _bgScrollView.contentSize = CGSizeMake(winsizeW, 0);

    _commitBtn.frame = CGRectMake(0, kScreenHeight - 64 - 55*AUTO_6_X, kScreenWidth, 55*AUTO_6_X);

    [self.view addSubview:_commitBtn];

}