之后 iOS 视频流式传输和存储在设备上

问题描述

到目前为止，我知道如何流式传输视频以及如何下载视频，然后再进行流式传输，但有一点很棘手:流式传输一次，将其存储在设备上，以后再从设备上播放.

So far I know how to stream a video and how to download it and afterwards stream it, but here's the tricky bit: streaming it once, storing it on the device and in the future play it from the device.

这可能吗?

推荐答案

保存视频非常简单.做类似的事情:

It's quite easy to save the video. Do something similar to this:

//Saving Movie
NSMutableData *data = [[NSMutableData alloc] init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];          
[archiver encodeObject:*MovieObject* forKey:@"MovieObjectDataKey"];
[archiver finishEncoding];
[[NSUserDefaults standardUserDefaults] setObject:data forKey:@"MovieObjectDefaultsDataKey"];
[archiver release];
[data release];

//Retrieving movie 
NSData *savedMovieData = [[NSUserDefaults standardUserDefaults] objectForKey:@"MovieObjectDefaultsDataKey"];
if (savedMovieData != nil) {
    NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:savedMovieData];
    *MovieObject* = [[unarchiver decodeObjectForKey:@"MovieObjectDataKey"] retain];
    [unarchiver finishDecoding];
    [savedMovieData release];
    [unarchiver release];
} else {
    //Download Stream of Your Movie
}

你真正需要改变的只有 * MovieObject *，每一步都要改变一次.

The only thing you really have to change there is * MovieObject *, once in each step.

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