开发直播app软件时，关于贴标签功能，我们可以这样做

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/yun_bao_2144899870/article/details/88869964

在我们玩直播时，我们常常会给主播贴一些标签，比如萌、女神、可爱之类的，平台也会在开发直播app软件时，为我们提供一些标签作为备选，如下图所示，像第一行显示3个标签，第二行显示2个标签，这样的显示设置该如何做出呢？本篇文章就以此为主题，为大家介绍直播软件中的印象标签排列该如何设置。

/*
接收到服务端的数据，自己做处理
*/
//自己封装了一下AFNetworking的网络请求方法

	[YBToolClass postNetworkWithUrl:name andParameter:dic success:^(int code, id  _Nonnull info, NSString * _Nonnull msg) {
        if (code == 0) {
                for (NSDictionary *diccc in info) {
                    if ([[diccc valueForKey:@"ifcheck"] isEqual:@"1"]) {
                        [selectMutableArray addObject:diccc];
            NSArray *list = info;
            NSMutableArray *muArr1 = [NSMutableArray array];
NSMutableArray *muArr2 = [NSMutableArray array];据每5个；
            NSInteger secionCount;
            if (list.count%5 == 0) {
                secionCount = list.count/5;
            }else{
                secionCount = list.count/5+1;
            for (int i = 0; i < secionCount; i++) {
                NSMutableArray *arr = [NSMutableArray array];
                int aaaaa;
                if ((i+1)*5>list.count) {
                    aaaaa = (int)list.count;
                }else{
                    aaaaa = (i+1)*5;
                for (int j = i*5; j < aaaaa; j++) {
                    [arr addObject:list[j]];
                [muArr1 addObject:arr];
            for (NSArray *arr in muArr1) {
                NSMutableArray *threeArr = [NSMutableArray array];
                NSMutableArray *twoArr = [NSMutableArray array];
                for (int i = 0;i<arr.count;i++) {
                    if (arr.count>3) {
                        if (i<3) {
                            [threeArr addObject:arr[i]];
                        }else{
                            [twoArr addObject:arr[i]];}
                    }else{
                        [threeArr addObjectsFromArray:arr];
                        break;
                [muArr2 addObject:threeArr];
                [muArr2 addObject:twoArr];
            infoArray = muArr2; 
            [impressCollection reloadData];
    } fail:^{
//数据处理完成，在uicollectionview的代理方法中铺数据
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
    return [infoArray[section] count];
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
    return infoArray.count;
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section{
    return 15;
}-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    impressCell *cell = (impressCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"impressCELL" forIndexPath:indexPath];
NSDictionary *subDic = infoArray[indexPath.section][indexPath.row];//文字颜色由后台返回16进制
    UIColor *color = RGB_COLOR([subDic valueForKey:@"colour"], 1);
    cell.contentL.layer.borderWidth = 1;
    cell.contentL.layer.borderColor = color.CGColor;
    cell.contentL.textColor = color;
    cell.contentL.text = [NSString stringWithFormat:@"%@",[subDic valueForKey:@"name"]];
    cell.contentL.font = [UIFont systemFontOfSize:15];
BOOL isCons = NO断选中的数组中是否是当前cell 来改变背景颜色
    for (NSDictionary *dic in selectMutableArray) {
        if ([[subDic valueForKey:@"id"] isEqual:[dic valueForKey:@"id"]]) 
            isCons = YES;
        }else{
    if (isCons) {
        cell.contentL.textColor = [UIColor whiteColor];
        cell.contentL.backgroundColor = color;
    }else{
        cell.contentL.textColor = color;
        cell.contentL.backgroundColor = [UIColor clearColor];
    return cell;
// 设置页边距。
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    if (section % 2 == 0) {
        return UIEdgeInsetsMake(5, 0, 5, 0);
    }else{
        return UIEdgeInsetsMake(5, _window_width/8, 5, _window_width/8); }
// 设置item大小。计算文字的长度 每个宽度+30 
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    CGFloat width;
    NSDictionary *subDic = infoArray[indexPath.section][indexPath.row];
    width = [[YBToolClass sharedInstance] widthOfString:[NSString stringWithFormat:@"%@",minstr([subDic valueForKey:@"name"])] andFont:[UIFont systemFontOfSize:15] andHeight:30] + 20;
    return CGSizeMake(width, 30)

以上代码中，collectionview的flowlayout 我使用的是JYEqualCellSpaceFlowLayout 大家可以在网上自己找一下,更多与开发直播app软件行业相关的资讯和分析会在以后逐渐放出，敬请期待，需要的朋友请关注我。
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