Question

我尝试使用URL在tableView中播放视频我现在使用json从数据库中获取URL我使用NSMutabledata从数据库中获取字符串我附加了NSData。

当我传递数据时，我转换为字符串，并且我将URL传递给电影播放器问题是我在我的控制台中得到空错误任何人都可以建议我如何将NSData转换为URL我长期困在这里需要帮助

这个代码我用来从json获取字符串并将其传递给url

-(void)setDataSource:(vedios *)inVideosObj
{
    self.titile.text = inVideosObj.title;

    url =[NSURL URLWithString:inVideosObj.video];
    NSURLRequest *request =[NSURLRequest requestWithURL:url];
    connection =[[NSURLConnection alloc] initWithRequest:request delegate:self];
    self.responseData = [[NSMutableData alloc]init];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data;
{
     [self.responseData appendData:data];
}

这是我试图将nsdata转换为字符串并传递给电影播放器的代码。

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    // NSAssert(self.responseData, @"Response data should not be nil");

    NSString *urlString = [[NSString alloc]initWithData:self.responseData encoding:NSUTF8StringEncoding];

    // NSString *urlString = [NSString stringWithUTF8String:[self.responseData bytes] ];

    NSAssert(self.responseData, @"This should not be nil for a valid response");

    NSLog(@"data :%@",urlString);
    MPMoviePlayerController *mov = [[MPMoviePlayerController alloc]initWithContentURL: [NSURL URLWithString:urlString]];
    //  MPMoviePlayerController *mov = [[MPMoviePlayerController   alloc]initWithContentURL:[NSURL URLWithString:urlString]];
    NSLog(@"length %d",[self.responseData length]);

    // MPMoviePlayerController *mov = [[MPMoviePlayerController   alloc]initWithContentURL:url];

    self.movieplayer = mov;
    [self.movieplayer.view setFrame:CGRectMake(10,20, 100, 100)];

    // self.movieplayer.movieSourceType = MPMovieSourceTypeFile;
    [self.contentView addSubview:self.movieplayer.view];
    [self.movieplayer prepareToPlay];
    [self.movieplayer play];
}

如何在ios中将NSdata转换为nsurl

0 个答案: