android-things

Has anyone tested Android Things on the Raspberry Pi 3 model B+ yet? When I attempt to boot the Pi 3 B+ with an Android Things image, it remains on the initial multi-colour boot screen and nothing further happens. Power is fine and same micro SD card works with Raspbian . Raspberry Pi 3 model B+ is not yet officially supported by Android Things in contrast to Raspberry Pi 3 model B . 来源： https://stackoverflow.com/questions/49434627/does-android-things-support-the-raspberry-pi-3-model-b

I'm building app on Raspberry Pi with Android Things and I have 7 inch touch screen , but the screen never turns off. Is it possible to set timeout like in Android phones? or force it to turn off/on. If I remove the power line and inserted again the screen, it will not work until I reboot. There are two system settings that control this process: STAY_ON_WHILE_PLUGGED_IN and SCREEN_OFF_TIMEOUT The STAY_ON_WHILE_PLUGGED_IN setting is set to BATTERY_PLUGGED_AC by default. You can programmatically change this value in your application code with the Settings API: Settings.Global.putInt

I have the following code in my app to access PeripheralManagerService : PeripheralManagerService service = new PeripheralManagerService(); Gpio ledGpio; try { ledGpio = service.openGpio("BCM6"); ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW); } catch (IOException e) { Log.e(TAG, "Error configuring GPIO pins", e); } After updating to the latest Android Things (Developer Preview 7), my app is now throwing a NoClassDefFoundError : java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/things/pio/PeripheralManagerService; ... Caused by: java.lang.ClassNotFoundException:

Where can be found the characteristics of the switching speed of GPIO port for the Raspberry Pi 3 under Android Things like that ? In DP2 there is two ways to control GPIO: 1) with SDK using java (analyzed by Harry Fairhead here ); 2) with NDK using C/C++ (analyzed by Harry Fairhead here ). With SDK using java the fastest pulses seen are around 0.23ms and there are lots of large (up to 8ms) interruptions (!!!) in the pulse train. And with NDK using C/C++ the pulse width is reduced from 0.23ms to just around 0.15ms. Conclusion: Android Things DP2 Raspberry Pi GPIO max frequency is about 3 kHz,

I'm attempting to read files off of a USB drive for an Android Things app on a Raspberry Pi . I'm able to scan the list of mounted devices like so: public static List<File> ScanForFiles(Context context){ ArrayList<File> files = new ArrayList<>(); try{ BufferedReader reader = new BufferedReader(new FileReader("/proc/self/mountinfo")); String line; while ((line = reader.readLine()) != null) { String[] columns = line.split(" "); Log.i(TAG, "Mounted: " + columns[4]); //files.addAll(getListFiles(new File(columns[4]))); } } catch (Exception ex){ ex.printStackTrace(); } printFileInformation("/proc

I'm trying to show soft keyboard on Android Things , Raspberry Pi 3 . I tried the methods below, but not succeeded so far: <activity ... android:windowSoftInputMode="stateAlwaysVisible"> and <EditText ... android:inputType="numberDecimal"/> Does Android Things 7.0 support soft keyboard, or am I missing something? Update II : there is a bug with Dev Preview 5.1 when Google's soft keyboard doesn't show up at all . Update : starting with Dev Preview 4 the Android Things image is shipped with com.google.android.inputmethod.latin preinstalled. If you're going to use a 3d party keyboard app the

I'm interested in knowing how to set the first wifi on android things (not android phone) without access to a network cable, for a fresh install. There certainly must be a way to put the information in the SD card right after copying the OS image. If that can't be done directly, worst case scenario I would expect it should be possible to write a script and copy it somewhere into some of the partitions and have it automatically run at boot (which can be handy for other things). Unless the image is signed? I would also be ok by writing an app that could be copied to SD card before first boot