How do I respond to the KEYCODE_HEADSETHOOK?











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I want a easy app that does nothing but respond to the key KEYCODE_HEADSETHOOK, and when it get it, it make a Toast.



After Android 5.0 (21), I see many pages that do this, but it seems that they did not work well.



I tried MediaSessionCompat, AudioManager, MediaSession.Callback, MyReceiver extends BroadcastReceiver, but none of them works.



The log says,



dispatchMediaKeyEvent:com.**.**.my true KeyEvent { action=ACTION_UP, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=14529808, downTime=14529808, deviceId=1, source=0x101 } false java.lang.Throwable



and then



Sending KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=9767039, downTime=9767039, deviceId=1, source=0x101 } to the last known PendingIntent PendingIntent{7c7b120: PendingIntentRecord{6be5ad9 tv.**.** broadcastIntent}}



I do not know where I was wrong.






android media-buttons







share|improve this question


























    up vote
    0
    down vote

    favorite












    I want a easy app that does nothing but respond to the key KEYCODE_HEADSETHOOK, and when it get it, it make a Toast.



    After Android 5.0 (21), I see many pages that do this, but it seems that they did not work well.



    I tried MediaSessionCompat, AudioManager, MediaSession.Callback, MyReceiver extends BroadcastReceiver, but none of them works.



    The log says,



    dispatchMediaKeyEvent:com.**.**.my true KeyEvent { action=ACTION_UP, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=14529808, downTime=14529808, deviceId=1, source=0x101 } false java.lang.Throwable



    and then



    Sending KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=9767039, downTime=9767039, deviceId=1, source=0x101 } to the last known PendingIntent PendingIntent{7c7b120: PendingIntentRecord{6be5ad9 tv.**.** broadcastIntent}}



    I do not know where I was wrong.






    android media-buttons







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I want a easy app that does nothing but respond to the key KEYCODE_HEADSETHOOK, and when it get it, it make a Toast.



      After Android 5.0 (21), I see many pages that do this, but it seems that they did not work well.



      I tried MediaSessionCompat, AudioManager, MediaSession.Callback, MyReceiver extends BroadcastReceiver, but none of them works.



      The log says,



      dispatchMediaKeyEvent:com.**.**.my true KeyEvent { action=ACTION_UP, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=14529808, downTime=14529808, deviceId=1, source=0x101 } false java.lang.Throwable



      and then



      Sending KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=9767039, downTime=9767039, deviceId=1, source=0x101 } to the last known PendingIntent PendingIntent{7c7b120: PendingIntentRecord{6be5ad9 tv.**.** broadcastIntent}}



      I do not know where I was wrong.






      android media-buttons







      share|improve this question













      I want a easy app that does nothing but respond to the key KEYCODE_HEADSETHOOK, and when it get it, it make a Toast.



      After Android 5.0 (21), I see many pages that do this, but it seems that they did not work well.



      I tried MediaSessionCompat, AudioManager, MediaSession.Callback, MyReceiver extends BroadcastReceiver, but none of them works.



      The log says,



      dispatchMediaKeyEvent:com.**.**.my true KeyEvent { action=ACTION_UP, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=14529808, downTime=14529808, deviceId=1, source=0x101 } false java.lang.Throwable



      and then



      Sending KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_HEADSETHOOK, scanCode=226, metaState=0, flags=0x8, repeatCount=0, eventTime=9767039, downTime=9767039, deviceId=1, source=0x101 } to the last known PendingIntent PendingIntent{7c7b120: PendingIntentRecord{6be5ad9 tv.**.** broadcastIntent}}



      I do not know where I was wrong.






      android media-buttons




      android media-buttons






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 8 at 3:01









      chuanrui yan

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