AVPlayer+URLSession+JSON解析

• 项目中用到了SDWebImage和MJExtension两个常用库

[cell.imageView sd_setImageWithURL:imageUrl placeholderImage:[UIImage imageNamed:@"123"]];```

self.videos = [XMGVideo objectArrayWithKeyValuesArray:arrayM];```

#import "ViewController.h"
#import "UIImageView+WebCache.h"
#import "XMGVideo.h"
#import "MJExtension.h"

// 视频播放
#import 
#import 

@interface ViewController (){
    AVPlayerViewController      *_playerController;
    AVPlayer                    *_player;
    AVAudioSession              *_session;
    NSString                    *_urlString;
}

/*TableView的数据源*/
@property (nonatomic, strong) NSArray *videos;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [XMGVideo setupReplacedKeyFromPropertyName:^NSDictionary *{
       
        return @{
                 @"ID":@"id"
                 };
    }];
    
    //1.确定请求路径
    NSURL *url = [NSURL URLWithString:@"http://120.25.226.186:32812/video?type=JSON"];
    
    // 2:开始网络请求
    NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:[NSURLRequest requestWithURL:url] completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        // 3.解析数据
        NSDictionary *dictM = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
        
        // 存入本地或者数据库
        [dictM writeToFile:@"/Users/xiaomage/Desktop/video.plist" atomically:YES];
        
        // 4:取出视频数组
        NSArray *arrayM = dictM[@"videos"];
        
        //字典转模型
        //        NSMutableArray *arr = [NSMutableArray arrayWithCapacity:arrayM.count];
        //
        //        for (NSDictionary *dict in arrayM) {
        //            [arr addObject:[XMGVideo videoWithDict:dict]];
        //        }
        
        //字典数组转模型数组
        self.videos = [XMGVideo objectArrayWithKeyValuesArray:arrayM];
        
        NSLog(@"----%@",self.videos);
        
        //5.主线程刷新TableView
       dispatch_async(dispatch_get_main_queue(), ^{
           [self.tableView reloadData];
       });
    }];
    
    // 6.任务开始
    [task resume];
    
}

#pragma mark  TableViewDataSource
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.videos.count;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *ID = @"video";
    
    //1.创建cell
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
    
    XMGVideo *video = self.videos[indexPath.row];
    
    cell.textLabel.text = video.name;
    NSString *detailStr = [NSString stringWithFormat:@"%zd",video.length];
    
    cell.detailTextLabel.text = detailStr;
    NSString *baseUrl = @"http://120.25.226.186:32812/";
    NSURL *imageUrl =[NSURL URLWithString:[baseUrl stringByAppendingPathComponent:video.image]];
    
    [cell.imageView sd_setImageWithURL:imageUrl placeholderImage:[UIImage imageNamed:@"123"]];
    
    NSLog(@"ID---%@",video.ID);
    //3.返回cell
    return cell;
}

#pragma mark---TableViewDelegate
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    //1.拿到数据
//     NSDictionary *videoDict = self.videos[indexPath.row];
    
        XMGVideo *video = self.videos[indexPath.row];
    NSString *baseUrl = @"http://120.25.226.186:32812/";
    NSURL *mpUrl = [NSURL URLWithString:[baseUrl stringByAppendingPathComponent:video.url]];
    
    // 初始化播放器并播放
    _session = [AVAudioSession sharedInstance];
    [_session setCategory:AVAudioSessionCategoryPlayback error:nil];
    
    _player = [[AVPlayer alloc] initWithURL:mpUrl];
    // 初始化播放器控制器
    _playerController = [[AVPlayerViewController alloc] init];
    // 赋值播放器
    _playerController.player = _player;
    // 翻转感应 自动适配屏幕大小
    _playerController.videoGravity = AVLayerVideoGravityResizeAspect;
    _playerController.allowsPictureInPicturePlayback = true;    //画中画，iPad可用
    _playerController.showsPlaybackControls = true;
    _playerController.view.translatesAutoresizingMaskIntoConstraints = true;
    // 自动播放
    [_playerController.player play];
    
    [self presentViewController:_playerController animated:YES completion:nil];
}

@end```

![AVPlayer+JSON+NSURLSession.gif](http://upload-images.jianshu.io/upload_images/189984-6cb14be68f8447d8.gif?imageMogr2/auto-orient/strip)