So I am trying to get my app to stream a video located on Amazon S3. So far, I can do that with the MediaPlayer Tutorial from Apple no problem: https://developer.apple.com/library/ios/#samplecode/MoviePlayer_iPhone/Introduction/Intro.html
However, I am using RestKit in my app and therefore AFNetworking as well. I see that AFNetworking is using caching, so I was wondering if it was possible to do the same with videos? I don't know how to stream a video using AFNetworking. So that would be a good start. I can download a movie using AFNetworking... but can I stream with it or I should just use the streaming system given by #import
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"https://s3.amazonaws.com/leclerc/videos/sop/IMG_0141.MOV"]];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"IMG_0141.MOV"];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:path append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Successfully downloaded file to %#", path);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
[operation start];
For example, if I watch a music clip on Vevo and then rewatch 5 minutes later, do I have to redownload it on my iPad?! This is all new to me, so sorry for my ignorance!
Related
I am sending the remote file (for example: image file, pdf file ... ) to Airdrop.
I have only the direct link of this file : http://example.com/xxx/png.
Currently, I am doing something like below code
NSString *filePath = self downloadFileFromServerWithURL
NSURL *urlFilePath = [NSURL fileURLWithPath:filePath];
NSArray *Items = [NSArray arrayWithObjects:
[NSNumber numberWithFloat:indexPath.row],
urlFilePath,nil];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:Items applicationActivities:[NSArray arrayWithObjects:xxx, yyy,nil];
[self presentViewController:activityViewController animated:YES completion:nil];
So, my question is, how can I share the remote file with Airdrop without downloading it before?
I show a lot of iOS softwares can do that, like DropBox
Thank you
you should look into using a subclass of UIActivityItemProvider which will let you asynchronously get/generate the actual item to be shared. The AirDrop sample code has an example of this.
I have an app on the app store which plays a selection of videos. Currently all of the videos are in the .mov file format but this makes the size of the app rather large so i'm trying to use a different file format to reduce the overall size of the app.
I am trying to use the mp4 format as this is reducing the size of each video by more than a half but when I do, the app crashes when I try to play the video with the following error message:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSURL initFileURLWithPath:]: nil string parameter
I have used the following code for each video in my implementation file and changed the file name and type to match the new video so I don't understand why there should be a problem with the file path.
- (IBAction)playDaresWins:(id)sender {
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
pathForResource:#"DaresWins" ofType:#"mov"]];
_moviePlayer =
[[MPMoviePlayerController alloc]
initWithContentURL:url];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(moviePlayBackDidFinish:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:_moviePlayer];
_moviePlayer.controlStyle = MPMovieControlStyleNone;
_moviePlayer.shouldAutoplay = YES;
[self.view addSubview:_moviePlayer.view];
[_moviePlayer setFullscreen:YES animated:NO];
}
Am I missing something?
.mov isn't a video format or codec, it's a container. The developer documentation provides a list of supported video codecs, bit rates, and resolution (link here - I won't post them here as they can change from OS version to OS version).
However, I don't think that's the problem, because it looks as if you're getting an exception when you're creating the NSURL, not when you're playing the video. That suggests that the path you're providing for your video doesn't exist. Are you sure you have a) the right filename, b) the right extension (perhaps it's MP4 instead of MOV), or c) have added the movie file into your project correctly?
Recently i have started working on iOS application development. These days i am working on a Music Player which must have following functionality:
-Online buffering of the song from php web service.
-Play, pause, stop, next song, previous song.
-two sliders, one is for volume control and other is for showing the play time of the song.
-shuffle, repeat song.
I have tried these things with AVPlayer and AVAudioPlayer but in AVAudioPlayer it is not possible to stream the data from url i think because i have tried a lot then i done this by using AVplayer but it is not supporting options like volume control etc. and even the buffering is also not proper like a have to press play button again if the buffering stops at some point. I need an urgent help for this Audio Player any tutorial any example which i can understand easily as i am new in this field.
Here is the code
NSURL *url = [[NSURL alloc] initWithString:#"http://www.androidmobiapps.com/extrememusic/app/songs/1.mp3"];
[self setupAVPlayerForURL:url];
I am calling this song at viewdidload
-(void) setupAVPlayerForURL: (NSURL*) url {
AVAsset *asset = [AVURLAsset URLAssetWithURL:url options:nil];
AVPlayerItem *anItem = [AVPlayerItem playerItemWithAsset:asset];
audioPlayer = [AVPlayer playerWithPlayerItem:anItem];
[audioPlayer addObserver:self forKeyPath:#"status" options:0 context:nil];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == audioPlayer && [keyPath isEqualToString:#"status"]) {
if (audioPlayer.status == AVPlayerStatusFailed) {
NSLog(#"AVPlayer Failed");
} else if (audioPlayer.status == AVPlayerStatusReadyToPlay) {
NSLog(#"AVPlayer Ready to Play");
} else if (audioPlayer.status == AVPlayerItemStatusUnknown) {
NSLog(#"AVPlayer Unknown");
}
}
}
I've done functions you mentioned above as a class, and open source it. Whatever you wanna use the class directly or treat it as an AVFoundation beginner examples. Good luck!
Watch this repo on GitHub here
I'm migrating to use the UIActivityViewController for sharing in iOS6, but I can't figure out how to create email attachment objects to be included when sharing by email.
The corresponding code in iOS5 is:
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
[picker addAttachmentData:data mimeType:#"application/XXX" fileName:fileName];
You have very limited control over UIActivityViewController, but if you're attaching well-know mime types, I found you can get it to work correctly by providing the associated file extension in a file URL. For example, if your attachment is a vCard, use the ".vcf" extension in the file URL:
NSString *docsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
// The file extension is important so that some mime magic happens!
NSString *filePath = [docsPath stringByAppendingPathComponent:#"vcard.vcf"];
NSURL *fileUrl = [NSURL fileURLWithPath:filePath];
[data writeToURL:fileUrl atomically:YES]; // save the file
// Now pass the file URL in the activity items array
UIActivityViewController *avc = [[UIActivityViewController alloc] initWithActivityItems:
#[#"Here's an attached vCard", fileUrl] applicationActivities:nil];
[vc presentModalViewController:avc animated:YES];
For anyone wondering why their files aren't being shared using UIActivityViewController to apps like DropBox and other generic file handling applications, what you really want is a UIDocumentInteractionController.
Use it something like this:
class ViewController {
var openInController:UIDocumentInteractionController!
init() {
openInController = UIDocumentInteractionController(URL: docURL)
}
func shareDoc {
openInController.presentOptionsMenuFromRect(CGRectZero, inView: self.view, animated: true)
}
}
From what I can tell you can't do this with the UIActivityViewController -- I can't even manage to make it present HTML content for the message body -- so you may be better off using SLComposeViewController.
I'm struggling with file handling on iOS.
I could already assign my file type to iOS and I can launch my app from mail with a special file.
My app is launching and I'm firing this method:
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
if([url isFileURL])
{
NSString *fileConts = [[NSString alloc] initWithContentsOfFile:[NSString stringWithFormat:#"%#", url] encoding:NSUTF8StringEncoding error:nil];
[self.viewController openFile:fileConts];
fileConts = nil;
}
return YES;
}
The openFile:(NSString) method is declared in the viewController and sets the value of a textView (for now). This method works fine. I tested it via [self.viewController openFile:#"test"];.
But when my application launches with file attached, the textView keeps empty.
It seems that it doesn't adopt the string value or that it can't read the string value.
handleOpenURL will be called only if application already running (in the background).
To make sure you correctly dispatch incoming files, you also need to check it on the app launch:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSURL *url = (NSURL *)[launchOptions valueForKey:UIApplicationLaunchOptionsURLKey];
// Process url here
}
It's good idea to have 1 URL dispatcher called both from handleOpenURL and didFinishLaunchingWithOptions.
I could solve my problem.
My mistake was to initWithContentsOfFile:(NSString *)
I updated my code with
NSString *fileConts = [[NSString alloc] initWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];
Now I'm happy!
Thanks for help.