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);

    [_buttonViewaddSubview:_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.viewaddSubview:_commitBtn];

}