Getting the name of the application with a change in focal length

Question

I can not find anything related to figuring out which application received audio focus. I can correctly determine from my application what focus change was, but not from any other application. Is there a way to determine which application got the focus?

"What do I want to do?"

I managed to record the internal sound, whether it be music or voice. If I am currently recording audio regardless of the source, I want to determine which application has taken notice in order to determine what my application needs to do next.

I am currently using AudioManager.OnAudioFocusChangeListener for my application to stop recording internal sounds after changing focus, but I want the application name in the spotlight.

Answer 1

Short answer: There is no good solution ... and Android probably intended to do this.

: , AudioManager API ( API) , Audio Focus. AudioManager AudioService, . API, AudioService . , AudioManager , API . , / .

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Answer 2

MediaContorller ( lollipop, ).

, :

https://developer.android.com/reference/android/media/session/MediaController.html#getPackageName()

https://developer.android.com/reference/android/media/session/MediaController.html#getSessionActivity()

getPackageName : http://androidxref.com/5.1.1_r6/xref/frameworks/base/media/java/android/media/session/MediaController.java#397

getSessionActivity PendingIntent ( ), .

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Answer 3

dumpsys audio, , . dumpsys media_session.

, , , dumpsys media.audio_flinger. .