Detect headset press on android - Media Button

[I.R.B.A.]

My goal is to intercept media button press on Kivy but nothing I do actually works, I have no experience with java so any help will be appreciated as I am willing to learn. Thank you

from kivy.core.window import Window
from android.broadcast import BroadcastReceiver
from jnius import autoclass
KeyEvent = autoclass("android.view.KeyEvent")


class TestApp(App):


    def build(self):
        self.br = BroadcastReceiver(
            self.on_broadcast, actions=['media_button'])
        self.br.start()


    def on_broadcast(self, context, intent):
        event = intent.getParcelableExtra(intent.EXTRA_KEY_EVENT)
        if event == KeyEvent.ACTION_UP and KeyEvent.KEYCODE_MEDIA_PLAY:
            print("Media button pressed")


       # extras = intent.getExtras().getString("EXTRA_KEY_EVENT")


    """
    def on_start(self):
        win = Window
        win.bind(on_keyboard=self.my_key_handler)


    def my_key_handler(self, window, keycode1, keycode2, text, modifiers):
        if keycode1 in [KeyEvent.KEYCODE_HEADSETHOOK, KeyEvent.KEYCODE_MUSIC, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE]:
            print("Media button pressed")


            return True
        return False
    """


    def on_pause(self):
        self.br.stop()
        return True


    def on_resume(self):
        self.br.start()

[I.R.B.A.]

UPDATE:

Intent = autoclass("android.content.Intent")
    def on_broadcast(self, context, intent):
        event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT)

        if event == KeyEvent.ACTION_UP and KeyEvent.KEYCODE_MEDIA_PLAY:
            print("Media button pressed")

intent-filters.xml

<intent-filter android:priority="2147483647" >
   <action android:name="android.intent.action.MEDIA_BUTTON" />
</intent-filter>