Platforms(Android/iOS/web/all): Android real device
Hello guys… I’m stuck and needing assistance with TaskManager.defineTask & Location.startLocationUpdatesAsync … I’ve follow the instructions in docs, putting defineTask in root App.js, and the startLocation in the right place (I think), and all works fine when the app runs in debug via usb on real device or emulator. The locations are displayed, the task runs fine, BUT when I generate the apk, install in my cellphone (xiaomi redmi 4x android 7) and the cell of a friend (MOTO G5 android 8), nothing happens about this background task. Its like TaskManager.defineTask and Location.startLocationUpdatesAsync never been called…
Anyone passed by this bug?
My codes:
root App.js:
import React from 'react';
import { StatusBar, ToastAndroid } from 'react-native';
import { Provider } from 'react-redux';
import { PersistGate } from 'redux-persist/integration/react';
import * as TaskManager from 'expo-task-manager';
import { format } from 'date-fns';
import { store, persistor } from './src/store';
import App from './src/App';
export default function Index() {
return (
<>
<Provider store={store}>
<PersistGate loading={null} persistor={persistor}>
<StatusBar barStyle="light-content" backgroundColor="#3d3f4a" />
<App />
</PersistGate>
</Provider>
</>
);
}
console.disableYellowBox = true;
if (!TaskManager.isTaskDefined('locationTask')) {
TaskManager.defineTask('locationTask', async ({ data: { locations }, error }) => {
if (error) {
// check `error.message` for more details.
console.log(error.message);
return;
}
// console.log(format(1570647632481, 'dd/MM/yyyy HH:mm:ss'));
// console.log(await TaskManager.getTaskOptionsAsync('locationTask'));
ToastAndroid.show(
`GPS lat/lon: ${locations[0].coords.latitude}/${locations[0].coords.longitude} - ${format(
locations[0].timestamp,
'HH:mm:ss'
)}`,
ToastAndroid.SHORT
);
console.log('TaskManager.defineTask');
console.log('Received new locations', locations);
console.log('#####################################');
});
}
src/App.js:
import React, { useEffect } from 'react';
import { useSelector } from 'react-redux';
import createRouter from './routes';
import { format } from 'date-fns';
import { useDispatch } from 'react-redux';
import setGPS from './store/modules/gps/actions'; // ../../store/modules/nfs/actions';
// import * as TaskManager from 'expo-task-manager';
import * as Location from 'expo-location';
import * as Permissions from 'expo-permissions';
export default function App() {
const dispatch = useDispatch();
async function getLocationAsync() {
let { status } = await Permissions.askAsync(Permissions.LOCATION);
if (status !== 'granted') {
console.error('Permission to access location was denied');
return;
}
console.log('getting local');
console.clear();
const location = await Location.startLocationUpdatesAsync('locationTask', {
accuracy: Location.Accuracy.High,
timeInterval: 3000,
showsBackgroundLocationIndicator: true,
foregroundService: {
notificationTitle: 'helloww bg geoloc',
notificationBody: 'body teste nofif',
notificationColor: '#EEE',
},
});
console.log('loc 1', location);
const location2 = await Location.getCurrentPositionAsync({});
console.log('current->', location2);
dispatch(setGPS(location2));
}
// getLocationAsync();
useEffect(() => {
getLocationAsync();
return () => {
TaskManager.unregisterAllTasksAsync();
};
}, []);
const signed = useSelector(state => state.user.auth);
const Routes = createRouter(signed);
return <Routes />;
}
i’d tested the cod in other 2 emulators with android 7.11 and 6.0 and this bug occurs again, but a little bit diff in 6.0… the location works but not in background.
with adb logcat in android 8.1 emulator, i’d catched this logs when I ‘mannually’ run the bg task + geoloc:
10-14 20:57:01.891 2479 2864 I ReactNativeJS: getting local
10-14 20:57:01.895 2479 2865 D i : WARNING: getPackageName called on ScopedContext
10-14 20:57:01.903 2479 2550 W GooglePlayServicesUtil: Google Play Store is missing.
--------- beginning of system
10-14 20:57:01.908 1643 1655 W ActivityManager: Unable to start service Intent { cmp=host.exp.exponent/abi35_0_0.expo.modules.location.services.LocationTaskService (has extras) } U=0: not found
10-14 20:57:01.919 2479 2550 I chatty : uid=10059(host.exp.exponent) GoogleApiHandle identical 1 line
10-14 20:57:01.936 2479 2550 W GooglePlayServicesUtil: Google Play Store is missing.
10-14 20:57:01.975 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 40960
10-14 20:57:01.982 1398 1398 I chatty : uid=1000(system) allocator@2.0-s identical 1 line
10-14 20:57:01.986 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 40960
10-14 20:57:02.002 2479 2751 D EGL_emulation: eglMakeCurrent: 0x756e7183dae0: ver 3 1 (tinfo 0x756e7180dd40)
10-14 20:57:02.067 1408 1408 D SurfaceFlinger: duplicate layer name: changing host.exp.exponent/host.exp.exponent.experience.ExperienceActivity to host.exp.exponent/host.exp.exponent.experience.ExperienceActivity#1
10-14 20:57:02.077 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1736704
10-14 20:57:02.156 1398 1398 I chatty : uid=1000(system) allocator@2.0-s identical 1 line
10-14 20:57:02.216 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1736704
10-14 20:57:02.279 2479 2751 D EGL_emulation: eglMakeCurrent: 0x756e7183dae0: ver 3 1 (tinfo 0x756e7180dd40)
10-14 20:57:01.910 1643 1655 W ActivityManager: Unable to start service Intent { cmp=host.exp.exponent/abi35_0_0.expo.modules.location.services.LocationTaskService (has extras) } U=0: not found
10-14 20:57:03.978 1643 1643 W WindowManager: removeWindowToken: Attempted to remove non-existing token: android.os.Binder@2177142
10-14 20:57:02.320 2479 2751 D EGL_emulation: eglMakeCurrent: 0x756e7183dae0: ver 3 1 (tinfo 0x756e7180dd40)
10-14 20:57:05.086 1391 1555 W audio_hw_generic: Not supplying enough data to HAL, expected position 1981147 , only wrote 1828800
And when I try to getCurrentLocation:
10-14 21:00:40.972 1406 1406 I boot-pipe: done populating /dev/random
10-14 21:00:46.311 1391 2668 W audio_hw_generic: Not supplying enough data to HAL, expected position 1982392 , only wrote 1982160
10-14 21:00:46.353 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 139264
10-14 21:00:46.359 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 139264
10-14 21:00:46.365 1398 1447 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 139264
10-14 21:00:46.379 1408 1408 D SurfaceFlinger: duplicate layer name: changing host.exp.exponent/host.exp.exponent.experience.ExperienceActivity to host.exp.exponent/host.exp.exponent.experience.ExperienceActivity#1
10-14 21:00:46.416 1398 1447 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1736704
10-14 21:00:46.423 1398 1447 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1736704
10-14 21:00:46.429 1398 1398 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1736704
10-14 21:00:46.473 2479 2751 D EGL_emulation: eglMakeCurrent: 0x756e7183dae0: ver 3 1 (tinfo 0x756e7180dd40)
--------- beginning of system
10-14 21:00:48.346 1643 1643 W WindowManager: removeWindowToken: Attempted to remove non-existing token: android.os.Binder@d1783ec
10-14 21:00:46.724 2479 2751 I chatty : uid=10059(host.exp.exponent) RenderThread identical 3 lines
10-14 21:00:47.951 2479 2751 D EGL_emulation: eglMakeCurrent: 0x756e7183dae0: ver 3 1 (tinfo 0x756e7180dd40)
10-14 21:00:49.492 1391 1555 W audio_hw_generic: Not supplying enough data to HAL, expected position 2286738 , only wrote 2134800
FWIW I tried to get this working yesterday and failed. I wondered if maybe Toasts don’t work from an app that’s in the background, so I tried using network requests. Now that I think about it, BackgroundFetch probably exists for a reason so maybe just using fetch() was not a valid way to test this.
Are you sure that ToastAndroid works from a backgrounded app?
so maybe just using