for...in... 循环 处理一组按钮的选中状态变动

 

 

for...in...  循环  处理一组按钮的选中状态变动

- (void)buttonAction:(UIButton *)button {    [_indexView removeFromSuperview];  //下面线条移除[_tabScrollView setContentOffset:CGPointMake(button.tag * _pageWidth, 0) animated:_transitionAnimated];

    //下面两句话更改所有按钮的状态
    for (UIButton *tempButton in _tabButtonArray) {
        if (button.tag != tempButton.tag) {
            [tempButton setSelected:NO];
        }
    }    [button setSelected:YES];    if(button.selected)
    {           _indexView.frame = CGRectMake(0, tabButton.frame.size.height - 2, tabButton.frame.size.width, 2);           [tabButton addSubview:_indexView];    }

}

 

来源：https://www.cnblogs.com/OIMM/p/11475721.html