ios - 将视频保存到文档而不是相册中

Question

目前，我的用户录制了一段视频并将其保存到 iPad 的相册中。相反，我想将使用我的应用程序录制的视频存储在我的应用程序目录中并保存。稍后我希望能够播放我在我的应用程序中录制的所有视频。这是我到目前为止所得到的：

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
    [self dismissModalViewControllerAnimated:NO];
    // Handle a movie capture
    if (CFStringCompare ((__bridge_retained CFStringRef) mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo) {
        NSString *moviePath = [[info objectForKey:UIImagePickerControllerMediaURL] path];
        if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath)) {
            UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self,
                                                @selector(video:didFinishSavingWithError:contextInfo:), nil);
            NSData *movieData = [NSData dataWithContentsOfURL:moviePath];
            //confused on what to do after I have the movie data.
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *tempPath = [documentsDirectory stringByAppendingFormat:@"/vid1.mp4"];

    BOOL success = [movieData writeToFile:tempPath atomically:NO];

    NSLog(@"%hhd",success);

        }
    }
}

注意：我只录制视频，没有图片，如果重要的话。

Answer 1

#pragma mark -
#pragma mark File Names and Paths
// Creates the path if it does not exist.
- (void)ensurePathAt:(NSString *)path {
    NSFileManager *fm = [NSFileManager defaultManager];
    if ( [fm fileExistsAtPath:path] == false ) {
        [fm createDirectoryAtPath:path
      withIntermediateDirectories:YES
                       attributes:nil
                            error:NULL];
    }
}
- (NSString *)documentPath {
    if ( ! documentPath_ ) {
        NSArray *searchPaths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        documentPath_ = [searchPaths objectAtIndex: 0];
        documentPath_=[documentPath_ stringByAppendingPathComponent:@"VideoAlbum"];
        [documentPath_ retain];
    }
    return documentPath_;
}

- (NSString *)audioPath {
    if ( ! AudioPath_ ) {
        AudioPath_ = [[self documentPath] stringByAppendingPathComponent:@"Demo"];
        NSLog(@"%@",AudioPath_);
        [AudioPath_ retain];
        [self ensurePathAt:AudioPath_];
    }
    return AudioPath_;
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    NSString *type = [info objectForKey:UIImagePickerControllerMediaType];

    if ([type isEqualToString:(NSString *)kUTTypeVideo] || [type isEqualToString:(NSString *)kUTTypeMovie])
    {
        NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];

        NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
        tempPath = [[self audioPath] stringByAppendingFormat:@"/%@.mp4",[NSDate date]];
        BOOL success = [videoData writeToFile:tempPath atomically:NO];

        NSLog(@"%hhd",success);
    }
    [[picker presentingViewController] dismissViewControllerAnimated:YES completion:nil];
}