I have a detail view, and when viewdidload in detailviewcontroller, MPMoviePlayerController allocs and plays an audio, but even if I navigate backto main table, audio is still being played.
How can I stop MPMovieplayercontroller when I navigate back to main table ? This is my MPMoviePlayerController code:
.h
MPMoviePlayerController *player;
.m
- (void)viewDidLoad
{
[super viewDidLoad];
//Get the Movie
NSURL *movieURL = [NSURL URLWithString:#"some link"];
player = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
//Place it in subview, else it won’t work
player.view.frame = CGRectMake(20, 20, 280, 25);
player.backgroundView.backgroundColor = [UIColor clearColor];
[self.view addSubview:player.view];
// Play the movie.
[player play];
}
I even added following code into viewdidunload method, but didn't work.
- (void)viewDidUnload {
[player stop];
player.initialPlaybackTime = -1;
[player release];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
What do you guys suggest ?
Thanks in advance,
I liked the user experience of viewDidDisappear better than viewWillDisappear. The animation starts and the movie stops after - the audio flows better for me this way.
-(void)viewDidDisappear:(BOOL)animated {
[super viewDidDisappear:animated];
[_moviePlayer stop];
}
I am having a similar issue. I am unable to use "viewDidDisappear" or "viewWillDisappear" because I have a "config" type view that can be opened while the content is playing, and it will trigger those two methods.
EDIT: Found that viewDidUnload and viewWillUnload are not getting called any more (I'm currently on an iOS 6+ device)...
From the documentation:
Availability: iOS (3.0 and later) Deprecated: Views are no longer
purged under low-memory conditions and so this method is never called.
I just created a simple function called unload, and inside the function, set any objects I needed to = nil (I'm using ARC). At the time that I make the call to remove the view, I call the unload function as well. Hope it helps someone.
Related
I started a blank tvOS project and created the following code:
- (void)viewDidLoad
{
[super viewDidLoad];
AVPlayer *avPlayer = [AVPlayer playerWithURL:[NSURL URLWithString:#"http://www.myurl.com/myvideo.mp4"]];
AVPlayerLayer *avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];
avPlayerLayer.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
[self.view.layer addSublayer:avPlayerLayer];
[avPlayer play];
}
Nothing happens in the simulator though once the app loads. No video, nothing, just a blank translucent screen in my Apple TV simulator.
What's the proper way to play a sample video on app launch for an Apple TV app from an HTTP source?
I just pasted your code in my tvOS sample project, replaced the URL and ran it.
Nothing happened. Well, except for the fact that there's a log entry telling me that App Transport Security has blocked my URL request.
So I headed to the Info.plist, disabled ATS and upon next launch the video showed up just fine.
So if you're also using a non-HTTPS URL you're very likely running into this issue which is easily fixed by either using an HTTPS URL, disabling ATS completely or allowing specific non-HTTPs URLs in your Info.plist.
P.S.: I used this video for testing.
You could also use TVML and TVMLJS
https://developer.apple.com/library/prerelease/tvos/documentation/TVMLJS/Reference/TVJSFrameworkReference/
Adhere to the 'TVApplicationControllerDelegate' protocol and add some properties.
AppDelegate.h
#interface AppDelegate : UIResponder <UIApplicationDelegate, TVApplicationControllerDelegate>
...
#property (strong, nonatomic) TVApplicationController *appController;
#property (strong, nonatomic) TVApplicationControllerContext *appControllerContext;
Then add the following to 'didFinishLaunchingWithOptions'
AppDelegate.m
#define url #"http://localhost:8000/main.js"
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.appControllerContext = [[TVApplicationControllerContext alloc] init];
NSURL *javascriptURL = [NSURL URLWithString:url];
self.appControllerContext.javaScriptApplicationURL= javascriptURL;
for (id key in launchOptions) {
id val=[launchOptions objectForKey:key];
NSLog(#"key=%# value=%#", key, val);
if([val isKindOfClass:[NSString class]]) [self.appControllerContext.launchOptions objectForKey:val];
self.appController = [[TVApplicationController alloc] initWithContext:self.appControllerContext window:self.window delegate:self];
}
return YES;
}
create a folder and add the following files
main.js
index.tvml
main.js
function launchPlayer() {
var player = new Player();
var playlist = new Playlist();
var mediaItem = new MediaItem("video", "http://trailers.apple.com/movies/focus_features/9/9-clip_480p.mov");
player.playlist = playlist;
player.playlist.push(mediaItem);
player.present();
//player.play()
}
//in application.js
App.onLaunch = function(options) {
launchPlayer();
}
careful with this url in the mediaItem
Set up a template of your choice.
index.tvml
<document>
<alertTemplate>
<title>…</title>
<description>…</description>
<button>
<text>…</text>
</button>
<text>…</text>
</alertTemplate>
</document>
open terminal and navigate to this folder then run
python -m SimpleHTTPServer 8000
make sure the port here is the port in your ObjC url. The Apple examples use 9001.
See these tutorials for more info
http://jamesonquave.com/blog/developing-tvos-apps-for-apple-tv-with-swift/
http://jamesonquave.com/blog/developing-tvos-apps-for-apple-tv-part-2/
One issue I ran into was trying to play a local video file. It wouldn't work and there were constraint issues etc.
It looks like you can't use python to play the videos so either try apache or link to a video on the web.
This SO answer pointed me there.
The best way to play video in your app on AppleTV is going to be AVKit's AVPlayerViewController. If you use AVKit, you get a lot of stuff for free.
https://developer.apple.com/library/ios/documentation/AVFoundation/Reference/AVPlayerViewController_Class/index.html
You simply add that player to the viewController's player property:
// instantiate here or in storyboard
AVPlayerViewController *viewController = [[AVPlayerViewController alloc] initWithNibName:nil bundle:nil];
viewController.player = player;
[self addChildViewController:viewController];
[self.view addSubview:viewController.view];
[viewController didMoveToParentViewController:self];
// setup constraints, etc.
// play the video
[player play];
Also as mentioned below, make sure the video you're trying to play is coming either from an HTTPS connection or that you've disabled App Transport Security by setting the proper flags in the plist.
I didn't like the answers which messed about with subviews etc.
For full-screen playback, I use the following (Non-ARC) code:
// Play the stream
NSString *wifiStreamAddress = #"http://yourmoviefile.m3u8";
AVPlayer *player = [[AVPlayer alloc] initWithURL: [NSURL URLWithString: wifiStreamAddress] ];
AVPlayerViewController *playerViewController = [[AVPlayerViewController alloc] init];
playerViewController.player = player;
// Keep pointers to player and controller using retained properties:
self.player = player;
self.playerViewController = playerViewController;
[player release];
[playerViewController release];
[self presentViewController: playerViewController animated: true completion: ^{
[self.player play];
}];
This works really neat, animating presentation and fading back to previous view when you tap the MENU button. Also, it works great with the remote control using all the standard functions.
Its working for me.
May be helpful for you
-(void)playAction
{
AVPlayerViewController *viewController = [[AVPlayerViewController alloc] initWithNibName:nil bundle:nil];
viewController.player = player;
[self addChildViewController:viewController];
[self.view addSubview:viewController.view];
[viewController didMoveToParentViewController:self];
// play the video
[player play];
}
Swift version
Make a PlayViewController which inherit the AVPlayerViewController.
In the viewcontroller which has play button, add such function
#IBAction func onClickPlay(sender: AnyObject) {
let playerVC = PlayerViewController()
playerVC.playVideo(urlString)
[self.presentViewController(playerVC, animated: true, completion: nil)]
}
In the PlayerViewController
func playVimeoVideo(link : String) {
player = AVPlayer(URL: NSURL(string: link)!)
player?.play()
}
Notice
The question and some answers may be a little misleading so that you might think that only the url with ".mp4" at the end can be played by the Apple TV. I believed so at the first time I saw the post. It is not true. In fact, with AVPlayerViewController you can play Vimeo streaming video! The link to the stream video is not like https://vimeo.com/92655878. It is possible to get it from Vimeo site by extracting it from a json file, which can be downloaded from this link
let link = "https://vimeo.com/api/oembed.json?url=https%3A//vimeo.com/" + videoId
To be able to get correct url for the video, you need to use the Vimeo Pro user access to get the stream link for a specific video.
I have sub-classed uiscrollview and used initWithCoder to prepare my uiscrollview with all the subviews. I have used below code to set it up:
- (id)initWithCoder:(NSCoder *)aDecoder {
if ((self = [super initWithCoder:aDecoder])) {
NSLog(#"%f", self.frame.size.height);
self.contentSize = CGSizeMake(5000, self.frame.size.height);
labelContainerView = [[UIView alloc] init];
labelContainerView.frame = CGRectMake(0, 0, self.contentSize.width, self.contentSize.height/2);
labelContainerView.backgroundColor = [UIColor yellowColor];
[self addSubview:labelContainerView];
}
But this keeps failing because the self.frame property always return 0 values. Its super important for me to use self.frame property because I want to use storyboard to do any height adjustments for the frame of the scrollview.
I have tried the same thing using xib files instead of using the storyboard and it works fine. But in my project I dont want to use xib files.
It'll be really great if anyone can explain me why I get 0 values in initWithCoder: method when I use storyboard? and if using storyboard how to achieve this?
PS: I notice layoutSubviews method return correct frame information but I cannot create my subviews here since it get called for each frame change (when I scroll)
Are you using Autolayout in your Storyboard?
If you are really not taking advantage of it, you can disable it and your -initWithCoder: method will return your frame again.
If you do need Autolayout, try the following:
-(void)awakeFromNib
{
[super awakeFromNib];
[self setNeedsLayout];
[self layoutIfNeeded];
// self.frame will now return something :)
}
I have a video that auto plays at launch. When the short clip is finished it shows a black screen. I would like to dismiss the subview to show an image or auto load another controller??
Below is my code:
(void)viewDidLoad
{
{
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
pathForResource:#"cover" ofType:#"mp4"]];
MPMoviePlayerController *player = [[MPMoviePlayerController alloc]
initWithContentURL:url];
player.movieSourceType = MPMovieSourceTypeFile;
[player setControlStyle:MPMovieControlStyleNone];
player.view.frame = CGRectMake(0, 0, 768, 960);
[self.view addSubview:player.view];
[player play];
player = nil;
}
Thanks for any help..i'm a rookie at this.
I figured out a lot of this a couple of weeks ago. Check out the notifications available. http://developer.apple.com/library/ios/#documentation/mediaplayer/reference/MPMoviePlayerController_Class/Reference/Reference.html
Add something like this to viewDidLoad:
// Remove the movie player view controller from the "playback did finish" notification observers
[[NSNotificationCenter defaultCenter] removeObserver:_moviePlayer
name:MPMoviePlayerPlaybackDidFinishNotification
object:_moviePlayer];
// Register this class as an observer instead
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(movieFinishedCallback:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:_moviePlayer];
Now you have a method where you can re-add the view, or a thumbnail, or whatever:
- (void)movieFinishedCallback:(NSNotification*)aNotification
{
// Obtain the reason why the movie playback finished
NSNumber *finishReason = [aNotification userInfo][MPMoviePlayerPlaybackDidFinishReasonUserInfoKey];
if ([finishReason intValue] == MPMovieFinishReasonPlaybackEnded) {
[self.view addSubview:self.moviePlayer.view];
}
(This code was adapted on the fly from my project, may need thinking to adapt!)
The MPMoviePlayerController has a lot of notifications that get fired when the movie is playing, is paused, is stopped, is finished, etc. You can add your code to those methods to get very good control of your presentation.
In my case, it took about a day of research and hacking (and maybe another half day of cleanup and tuning), but I managed to get a very nice play/pause transparent button, with a "play icon" image overlay when paused or stopped, all loading or unloading based on the player state. It's a simple custom player control that does exactly what I want. Totally doable, just start with one player state, get what you want, and move onto the next state.
I'm new to Xcode. This is probably a very simple question to you, but I wonder if anyone can help me.
What I want to do is to load an image in a customised UIImageView, when clicking the image, the imageview will change to another image. When I run the simulator, there are no error messages, but the second image does not load after clicking.
I've declared a UIImageView subclass dragView. In the dragView.m, I have such codes:
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[self changePicture];
}
-(void) changePicture {
NSString *path = [[NSHomeDirectory() stringByAppendingPathComponent:#"Documents"] stringByAppendingPathComponent:#"Red Flower.png"];
self.image = [UIImage imageWithContentsOfFile:path];
}
By the way, I have enabled the interaction. Many thanks!
You probably need to tell the OS to update the view by calling [self setNeedsDisplay:YES].
I'm stuck on some weird memory leak problem related to the AVAudioPlayer and I need help after trying everything that came to mind.
Here is the short description of the problem - code appears right after.
I initialize my player and start to play the sound track in an endless loop (and endless loop or one time play did not change the problem).
Several seconds after the music started, I switch to another sound track, hence I create a new player, initialize it, release the old one (which is playing) and then set the new one in place and play it.
At that point in time (right after I call the new Player - [Player play]) I get a memory leak (of 3.5Kb).
I tried the following:
Stop the old player and then release it - no effect
Release the Player right after the play instruction - did not start playing
Release twice the old player - crash
Memory leak DOES NOT happen when I create and play the first Player!
Also, in the reference it does say that the 'play' is async and so probably it increases the ref count by 1, but in this case, why didn't [Player stop] help?
Thanks,
Here are some parts of the code about how I use it:
- (void) loadAndActivateAudioFunction {
NSBundle *mainBundle = [NSBundle mainBundle];
NSError *error;
NSURL *audioURL = [NSURL fileURLWithPath:[mainBundle pathForResource: Name ofType: Type]];
AVAudioPlayer *player = [(AVAudioPlayer*) [AVAudioPlayer alloc] initWithContentsOfURL:audioURL error:&error];
if (!player) {
DebugLog(#"Audio Load Error: no Player: %#", [error localizedDescription]);
DuringAudioPrep = false;
return;
}
[self lock];
[self setAudioPlayer: player];
[self ActivateAudioFunction];
[self unlock];
}
- (void) setAudioPlayer : (AVAudioPlayer *) player {
if (Player)
{
if ([Player isPlaying] || Repeat) // The indication was off???
[Player stop];
[Player release];
}
Player = player;
}
- (void) ActivateAudioFunction {
[Player setVolume: Volume];
[Player setNumberOfLoops: Repeat];
[Player play];
DuringAudioPrep = false;
}
Here is method to create AVAudioPlayer without causing memory leaks. See this page for explaination.
I have confirmed in my app that this removed my AVAudioPlayer leaks 100%.
- (AVAudioPlayer *)audioPlayerWithContentsOfFile:(NSString *)path {
NSData *audioData = [NSData dataWithContentsOfFile:path];
AVAudioPlayer *player = [AVAudioPlayer alloc];
if([player initWithData:audioData error:NULL]) {
[player autorelease];
} else {
[player release];
player = nil;
}
return player;
}
Implement the protocol AVAudioPlayerDelegate and its method audioPlayerDidFinishPlaying:successfully: then release the audio player object
eg.
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag {
[player release]; // releases the player object
}
Your code looks OK to me as far as I've seen, so maybe there is code elsewhere which is causing the problem.
I will say that you're using a sort of odd idiom. Rather than retaining on create and releasing on set, I'd do something like this:
// new players will always be created autoreleased.
AVAudioPlayer *player = [[(AVAudioPlayer*) [AVAudioPlayer alloc] initWithContentsOfURL:audioURL error:&error] autorelease];
- (void) setAudioPlayer : (AVAudioPlayer *) player
{
if (Player)
{
if ([Player isPlaying] || Repeat) // The indication was off???
[Player stop];
[Player release];
}
Player = [player retain];
}
In this way, you only retain "player" objects when they actually come into your setAudioPlayer method, which might make it easier to track down.
Also, verify that it's actually an AVAudioPlayer object which is leaking. Instruments should be able to verify this for you.
Try adding MediaPlayer.framework to your project