将应用内视频保存到相机胶卷？

Question

是否可以拍摄嵌入在应用程序中的视频并将其保存到相机胶卷？如果是这样,怎么样？它是否与UIWriteImage相同？

Answer 1

假设您已经知道如何保存图像,则可以尝试此代码:

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
    if([mediaType isEqualToString:(NSString *)kUTTypeMovie]) {
       //Save the video
       NSURL *movieUrl = [info objectForKey:UIImagePickerControllerMediaURL];
       UISaveVideoAtPathToSavedPhotosAlbum([movieUrl relativePath], self,@selector(movie:didFinishSavingWithError:contextInfo:), nil);
    }
}

或者你可以尝试:

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
  if([mediaType isEqualToString:(NSString *)kUTTypeMovie]) {
    NSURL *movieUrl = [info objectForKey:UIImagePickerControllerMediaURL];
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
    [library writeVideoAtPathToSavedPhotosAlbum:movieUrl completionBlock:^(NSURL *assetURL, NSError *error){
        if(error) {
            NSLog(@"CameraViewController: Error on saving movie : %@ {imagePickerController}", error);
        }
        else {
            NSLog(@"URL: %@", assetURL);
        }
    }];
  }
}