Unable to Save Video to Camera Roll (Objective C) - ios

Question

So I've been trying to accomplish this for quite some time now, but unfortunately none of the solutions posted on stack, or the ones I tried to write myself seem to work. I am building an application that allows users to take pictures and videos, and other users to save these down. I am using AWS services to save the content. Although the returned URL using NSLog, shows me the video when copy/pasting it to a browser, it refuses to save to the camera roll. Saving pictures however works fine.
So far I tried the following:
-(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);
}
}];
}
}
and also:
if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(self.post.mediaUrl)) {
UISaveVideoAtPathToSavedPhotosAlbum(self.post.mediaUrl, self, #selector(video:finishedSavingWithError:contextInfo:),#selector(video:finishedSavingWithError:contextInfo:));
} else {
NSLog(#"Incompatible File apparently");
}
Any advice? Thanks!

Answer 1

*Updated on April 6, 2016 to make use of modern frameworks
Import the following in wherever you place this method:
#import <AssetsLibrary/AssetsLibrary.h>
#import Photos
Then call method as following:
[yourClass saveMedia:(*your image*) video:(*your video url*)]
Hope this helps people, feel free to comment with questions.
+ (void)saveMedia:(UIImage *)image video:(NSURL *)video_url {
if(image) {
if(!image) {
return;
}
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
PHAssetChangeRequest *changeRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:image];
NSLog(#"%#", changeRequest.description);
} completionHandler:^(BOOL success, NSError *error) {
if (success) {
NSLog(#"saved down");
} else {
NSLog(#"something wrong");
}
}];
} else if (video_url) {
if([video_url absoluteString].length < 1) {
return;
}
NSLog(#"source will be : %#", video_url.absoluteString);
NSURL *sourceURL = video_url;
if([[NSFileManager defaultManager] fileExistsAtPath:[video_url absoluteString]]) {
[[[ALAssetsLibrary alloc] init] writeVideoAtPathToSavedPhotosAlbum:video_url completionBlock:^(NSURL *assetURL, NSError *error) {
if(assetURL) {
NSLog(#"saved down");
} else {
NSLog(#"something wrong");
}
}];
} else {
NSURLSessionTask *download = [[NSURLSession sharedSession] downloadTaskWithURL:sourceURL completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {
if(error) {
NSLog(#"error saving: %#", error.localizedDescription);
return;
}
NSURL *documentsURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] firstObject];
NSURL *tempURL = [documentsURL URLByAppendingPathComponent:[sourceURL lastPathComponent]];
[[NSFileManager defaultManager] moveItemAtURL:location toURL:tempURL error:nil];
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
PHAssetChangeRequest *changeRequest = [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:tempURL];
NSLog(#"%#", changeRequest.description);
} completionHandler:^(BOOL success, NSError *error) {
if (success) {
NSLog(#"saved down");
[[NSFileManager defaultManager] removeItemAtURL:tempURL error:nil];
} else {
NSLog(#"something wrong %#", error.localizedDescription);
[[NSFileManager defaultManager] removeItemAtURL:tempURL error:nil];
}
}];
}];
[download resume];
}
}
}

Answer 2

In Objective - C
Add this in .h/.m file
#import <Photos/Photos.h>
Save Video to Camera Roll:
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
[PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:videoUrl];
}
completionHandler:^(BOOL success, NSError *error) {
if (success)
{
NSLog(#"Video saved");
}else{
NSLog(#"%#",error.description);
}
}];