Android Things - can't use Awareness API

Question

I have the same code with a lower version (9.4.0) working on the phone but for some reason it won't work on RPi3? My build.gradle

compile 'com.google.android.gms:play-services:10.0.0'
provided 'com.google.android.things:androidthings:0.4-devpreview'

The manifest permissions

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />

The method

private void getWeather() {

    // Check for permission first
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
            != PackageManager.PERMISSION_GRANTED) {

        Log.e(TAG, "Fine Location Permission not yet granted");

        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);

    } else {
        System.out.println("else of getWeather()");
        Log.i(TAG, "Fine Location permission already granted");

        // Weather
        Awareness.SnapshotApi.getWeather(mGoogleApiClient).setResultCallback(new ResultCallback<WeatherResult>() {
                    @Override
                    public void onResult(@NonNull WeatherResult weatherResult) {
                        if (!weatherResult.getStatus().isSuccess()) {
                            Log.e(TAG, "Could not detect weather info");
                            mWeatherTextView.setText("Could not detect weather info");
                            mWeatherTextView.setTextColor(Color.RED);
                            System.out.println("NO WEATHER INFO");
                            return;
                        }
                        System.out.println("WEATHER INFO REC'D");
                        Weather weather = weatherResult.getWeather();
                        mWeatherTextView.setText(weather.toString());
                    }
                });
    }
}

The logcat

08-15 23:46:09.504 411-432/? I/WindowManager: Destroying surface Surface(name=Starting com.example.cartier.thingsaware) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.WindowStateAnimator.finishExit:565 com.android.server.wm.WindowStateAnimator.stepAnimationLocked:491 com.android.server.wm.WindowAnimator.updateWindowsLocked:303 com.android.server.wm.WindowAnimator.animateLocked:704 
08-15 23:46:09.594 411-1124/? I/WindowManager: Destroying surface Surface(name=com.android.iotlauncher/com.android.iotlauncher.IoTLauncher) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.AppWindowToken.notifyAppStopped:389 com.android.server.wm.WindowManagerService.notifyAppStopped:4456 com.android.server.am.ActivityStack.activityStoppedLocked:1252 com.android.server.am.ActivityManagerService.activityStopped:6902 
08-15 23:46:11.780 411-479/? E/TaskPersister: File error accessing recents directory (directory doesn't exist?).
08-15 23:46:35.798 3687-3687/? I/System.out: else of getWeather()
08-15 23:46:35.798 3687-3687/? I/MainActivity: Fine Location permission already granted

For some reason it stops after telling me the permission is granted. The app doesn't crash though, I have an OnClickListener that calls getWeather() so I can repeatedly click but never get any snapshot data. I'm using the same API key that works on the phone...

According to the docs the Awareness API is supported on the AndroidThings & I've seen projects were people claim to have used Nearby & other APIs in the list. Has anyone had success with the Awareness API on AndroidThings?

After updating to play services 11.0.0 the app opens the immediately closes & the logcat now shows

08-17 18:13:28.510 3148-3148/? I/System.out: onCreate
08-17 18:13:28.615 410-432/? I/ActivityManager: Displayed com.example.cartier.thingsaware/.MainActivity: +1s45ms
08-17 18:13:28.665 410-525/? I/WindowManager: Destroying surface Surface(name=com.android.iotlauncher/com.android.iotlauncher.IoTLauncher) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.AppWindowToken.notifyAppStopped:389 com.android.server.wm.WindowManagerService.notifyAppStopped:4456 com.android.server.am.ActivityStack.activityStoppedLocked:1252 com.android.server.am.ActivityManagerService.activityStopped:6902 
08-17 18:13:28.881 410-432/? I/WindowManager: Destroying surface Surface(name=Starting com.example.cartier.thingsaware) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.WindowStateAnimator.finishExit:565 com.android.server.wm.WindowStateAnimator.stepAnimationLocked:491 com.android.server.wm.WindowAnimator.updateWindowsLocked:303 com.android.server.wm.WindowAnimator.animateLocked:704 
08-17 18:13:28.990 3148-3148/? I/Process: Sending signal. PID: 3148 SIG: 9
08-17 18:13:29.047 410-929/? I/ActivityManager: Process com.example.cartier.thingsaware (pid 3148) has died
08-17 18:13:29.047 410-525/? I/WindowManager: WIN DEATH: Window{9cbd0a u0 com.example.cartier.thingsaware/com.example.cartier.thingsaware.MainActivity}
08-17 18:13:29.048 410-525/? I/WindowManager: Destroying surface Surface(name=com.example.cartier.thingsaware/com.example.cartier.thingsaware.MainActivity) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.removeLocked:1449 com.android.server.wm.WindowManagerService.removeWindowInnerLocked:2478 com.android.server.wm.WindowManagerService.removeWindowLocked:2436 com.android.server.wm.WindowState$DeathRecipient.binderDied:1780 android.os.BinderProxy.sendDeathNotice:688 <bottom of call stack> 
08-17 18:13:29.083 638-638/? I/AndroidThingsLauncher: Peripheral I/O ports 
08-17 18:13:29.083 638-638/? I/AndroidThingsLauncher: GPIO

Answer 1

Overall, Android Things requires a minimum Play Services client version of 11.0.0. This is the version where the IoT variant of Play Services was introduced. This is noted in the documentation under Support for Google Services.

For best results, you should match the library version to the exact version bundled with the preview release you are running. You can find those version numbers on the Release Notes.