UITableView插入删除置顶功能实现

项目介绍：

SDLayoutDemo

一个稍复杂的图文混排，图片大小不一但又要求图片大小自适应，限制最大宽度，使用indexPath缓存行高。支持cell编辑插入、收藏、点赞、置顶、删除功能。
使用indexPath缓存行高，能够支持90%以上的需求，如果数据计算较为复杂，可以对数据预处理+缓存行高，就相对较好了。
完整的项目在gitHub

如果能够帮助到你，记得给我点个星星✨。谢谢你。哈哈

部分代码如下：

//  插入一行
- (void)InsertRow {
    if (self.feedEntitySections.count == 0) {
        [self InsertSection];
    } else {
        [self.feedEntitySections[0] insertObject:self.randomEntity atIndex:0];
        NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
        [self.tableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
    }
}
//  插入一组
- (void)InsertSection {
    [self.feedEntitySections insertObject:@[self.randomEntity].mutableCopy atIndex:0];
    [self.tableView insertSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationAutomatic];
}
//  删除一组
- (void)deleteSection {
    if (self.feedEntitySections.count>0) {
        [self.feedEntitySections removeObjectAtIndex:0];
        [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationAutomatic];
    }
}
//  删除指定行
- (void)deleteRowWithIndexPath:(NSIndexPath *)indexPath {
    if (!indexPath) return;
    NSArray *feeds = self.feedEntitySections[indexPath.section];
    if (feeds.count > 1) {
        [self.feedEntitySections[indexPath.section] removeObjectAtIndex:indexPath.row];
        [self.tableView deleteRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section]] withRowAnimation:UITableViewRowAnimationAutomatic];
    } else {
        [self.feedEntitySections removeObject:self.feedEntitySections[indexPath.section]];
        [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationAutomatic];
    }
    
}

//  置顶
- (void)moveWithIndexPath:(NSIndexPath *)indexPath {
    if (!indexPath) return;
    NSArray *sections = self.feedEntitySections[indexPath.section];
    if (sections.count > 1) {
        [self.feedEntitySections[0] insertObject:sections[indexPath.row] atIndex:0];
        [self.feedEntitySections[indexPath.section] removeObjectAtIndex:indexPath.row + 1];
        [self.tableView reloadData];
    } else {
        [self.feedEntitySections[0] insertObject:sections[indexPath.row] atIndex:0];
        [self.feedEntitySections removeObjectAtIndex:indexPath.section + 1];
        [self.tableView reloadData];
    }
}