I'm trying to build an app where one can start audio playback from WearOS. From what I can tell this requires an app on the phone to obtain a list of possible songs to be played. To do that I want to use the MediaBrowserService, like this example does.

However when I try to reproduce the listing of MediaBrowserServices, I only get the "Bluetooth audio" MediaBrowserService. The example app on the other hand works fine and displays all apps.

Here is the code I'm using:

override fun onStart() {
    super.onStart()
    val mediaBrowserIntent = Intent(MediaBrowserServiceCompat.SERVICE_INTERFACE)

    val packageManager = this.packageManager
    val services = packageManager.queryIntentServices(mediaBrowserIntent, PackageManager.GET_RESOLVED_FILTER)
    val tv: TextView = findViewById(R.id.helloworld)
    val res = StringBuilder()
    for(info in services) {
        res.appendLine(info.serviceInfo.loadLabel(packageManager).toString())
    }
    tv.text = res.toString()
}

This is adapted from here.

Do you know what might be causing the issue?

CodePudding user response：

It looks like you need to properly handle the package visibility.
Try to add <queries> section to your manifest file with the correct intent filter signature:

<queries>
    <intent>
      <action android:name="android.media.browse.MediaBrowserService" />
    </intent>
</queries>

The sample app works because it targets SDK 29.