In my application I want to get start time of music player when user started and end time when it stops.I don't want to start any music player in my app. I just want to track user activity in device. So i want my application to get any notification when user started the music .
Do I get any intent for music player started and it stopped.Or do I get any intent for when user opens music files.
Is there any other method other than intent to capture the start time and and time when user starts music player.
Well you can implement the interface 'AudioManager.OnAudioFocusChangeListener' in which there is a method 'onAudioFocusChange' which lets you know if audio focus has been changed, and it can also tell if focus was gained or lost.
See this link, it explains the Audio Focus in detail. An application must gain audio focus through a request, and you can implement the 'AudioManager.OnAudioFocusChangeListener' and if there is focus gain, you can detect if the media player is running, (because some other application such as you tube may gain focus to play its audio), see this to see how to detect which application or service is currently running. You can find if audio has started to play, and if it was the media player or not.
Hope this helps. It was interesting question and I have learned some new things while searching for the answer!
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On the newest FireTV OS for the Fire Stick Lite 2020 I noticed that when we play a third party app like Spotify for example music keeps playing when we press the home button. This is normal behavior, however when I launch my app I request the audio focus using the AudioManager and OnAudioFocusChangeListener (because I'm also playing music and don't want it to be noisy) so the 3rd party music stops playing. However, when I press play on the FireTV to control my media(Using ExoPlayer) it pauses my app, takes me back to the Spotify app and I lose focus of my own application.
Youtube and Twitch handle this well, so I was wondering if there is anything I am missing or any documentation I should refer to.
Any help is appreciated.
Found the answer. Seems like I wasn't Media Session... According to
https://developer.android.com/guide/topics/media-apps/working-with-a-media-session
We would need to use Media Session to tell the System that there is a media session happening in your app and each time you tell the system that your player is active or playing then your application would have priority over the media controllers on the remote and no other application can access it unless you state that your media session is no longer active.
This helped too! https://developer.android.com/codelabs/supporting-mediasession
Hope this helps anyone else!
I'm trying to mimic the behavior of the Live Channels app. If user presses home button on the remote, the app is continuing to play the video in the background. But if user presses voice search button on the remote, the playback is paused (but still visible behind).
Currently I'm using a method described at Android Developer site that tells to use requestVisibleBehind function at onPause to tell weather the playback should be continued. But that keeps the video playing after search button is pressed.
I'm looking for a way to tell if the search dialog has been opened and therefore the playback of a video should be paused.
I basically have an audio application that will be playing some music. I want to be able to pause/stop/mute the music when there is an interrupt.
These interrupts include: GPS directions, Phone Call, GPS, etc. (if there are more audio interupts, please let me know)
I already implemented the phone call interrupt, stops the music when phone call received and plays after phone call ends.
How would I do the other interrupts?
EDIT:
I noticed that Android's Play Music application does this. But I am unable to find the source code of that, not sure if that would be helpful.
Make sure you correctly ask for and release Audio Focus as described here:
http://developer.android.com/training/managing-audio/audio-focus.html
With multiple apps potentially playing audio it's important to think about how they should interact. To avoid every music app playing at the same time, Android uses audio focus to moderate audio playback—only apps that hold the audio focus should play audio.
Basically this allows the framework to handle interrupts properly as you cannot specifically code for every situation.
I am making an app in which I've made a Service which plays Music from URLs. The thing is that my music Service is playing music correctly BUT when user plays any song with Native music player then BOTH(Native Player and My Music Service) are playing music simultaneously. I want to stop My Music Service when user started playing music with native player.
Is there any Broadcast Intent which i can register to Detect the
music player is started?
Is it possible to detect Music player Started?
Any Other Solution?
Any suggestions would appreciated.
I'll suggest a different approach, that I believe it's the correct approach.
the issue on your approach is that you're suggesting to check for one specific app. And there're tons of different music players, plus radio players, plus video players, plus games... and all of those should stop your music in case they want to play something.
So how you do it?
It's all explained in the Android Developers website.
You have to register an OnAudioFocusChangeListener, so, whenever a different app request to have the audio focus, your app can stop the music.
Step 1: Detect if the user has opened native music app. For this , you need to know the package name of your native music app.
Then refer to my answer here: Android how to know an app has been started and range apps priority according the starting times
Using that , the list taskinfo will have the list of all running activities, and as explained there, the first element of the list will be the activity in the foreground.
STEP 2: Once you detect native music app being activated using STEP 1 (by polling for it in the background) , then stop your app's service.
NOTE: You should do this in a background (using asynctask) or another service.
NOTE 2: The limitation of this method is that you can't actually stop the music player when the user clicks play in the native music app, since this method will help you detect only if the native music app is opened or not.
I'm writing an Android music player, and is stuck on audio focus issue.
It seems like audio focus mainly affects media button receiving, but after reading the document I have no idea about when to gain and give up focus.
My music app will run in background, and need to detect play/pause button every time. That is, even when my app is not running, a user should be able to press headset's play button and start music.
It seems I should never give up audio focus, so why should I implement it?
Does anyone know practically how audio focus should be used? Thank you!
It seems like audio focus mainly affects media button receiving, but
after reading the document I have no idea about when to gain and give
up focus.
They both are separate functionalities, and thus have separate listeners. You may have audio focus taken away from you but you may still choose to respond to play pause hardware keys
That is, even when my app is not running, a user should be able to
press headset's play button and start music.
I am assuming that you meant by the above line is that you are still playing music but not showing an activity. To keep listening to hardware button press, dont unregister your media button receiver(dont call audioManager.unregisterMediaButtonEventReceiver(receiver) yet).
It seems I should never give up audio focus, so why should I implement
it?
you dont give up the focus , it gets taken from you. To handle that gracefully you have AudioFocus listener. For ex, consider an incoming phone call. Would you still like to continue playing your music?