I'm developing an app and using following code to fetch current coordinates of the user (from this library):
ReactiveLocationProvider locationProvider = new ReactiveLocationProvider(getBaseContext());
locationProvider.getLastKnownLocation().subscribe(new Action1<Location>() {
@Override
public void call(Location location) {
currentLatDouble = location.getLatitude();
currentLngDouble = location.getLongitude();
Toast.makeText(getBaseContext(), "User's location retrieved using library for android M in btnRetryGpsEvents()", Toast.LENGTH_SHORT).show();
}
});
The problem is that this code sometimes don't even gets executed even after all the conditions are true. See the code below:
if (currentLatDouble != null || currentLngDouble != null) {
retrieveHWrapper();
progressBarLoadingRequests.setVisibility(View.VISIBLE);
btnRetryGps.setVisibility(View.INVISIBLE);
gps_off.setVisibility(View.INVISIBLE);
Toast.makeText(getBaseContext(), "Loading hrequests...", Toast.LENGTH_LONG).show();
} else {
gps_off.setVisibility(View.VISIBLE);
progressBarLoadingRequests.setVisibility(View.INVISIBLE);
btnRetryGps.setVisibility(View.VISIBLE);
btnRetryGps.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
btnRetryGpsEvents();
int hasWriteContactsPermission = ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) & ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) & ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) & ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_SETTINGS);
if (hasWriteContactsPermission != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.checkSelfPermission(getBaseContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getBaseContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getBaseContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getBaseContext(), Manifest.permission.WRITE_SETTINGS) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
if (!ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) && !ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) && !ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) && !ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.WRITE_SETTINGS)) {
showMessageOKCancel("You need to allow access to few permissions so that the app can work as expected.",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.WRITE_SETTINGS},
REQUEST_RUNTIME_PERMISSION);
}
});
return;
}
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.WRITE_SETTINGS},
REQUEST_RUNTIME_PERMISSION);
return;
}
}
ReactiveLocationProvider locationProvider = new ReactiveLocationProvider(getBaseContext());
locationProvider.getLastKnownLocation()
.subscribe(new Action1<Location>() {
@Override
public void call(Location location) {
currentLatDouble = location.getLatitude();
currentLngDouble = location.getLongitude();
Toast.makeText(getBaseContext(), "User's location retrieved using library for android M in btnRetryGpsEvents()", Toast.LENGTH_SHORT).show();
}
});
Toast.makeText(getBaseContext(), "called from btnRetryGpsEvents() - GPS available", Toast.LENGTH_SHORT).show();
}
});
}
After running the above code, the toast due to this code is shown: Toast.makeText(getBaseContext(), "called from btnRetryGpsEvents() - GPS available", Toast.LENGTH_SHORT).show(); which means that this is getting executed, but the toast just above it viz.: Toast.makeText(getBaseContext(), "User's location retrieved using library for android M in btnRetryGpsEvents()", Toast.LENGTH_SHORT).show(); is not shown which means it doesn't gets executed!
How this can happen? What's going wrong here????
Please let me know.
P.S.: This problem is occuring only in Android M and above.
Please check code inside ReactiveLocationProvider. I think it implements LocationListener. Guessing that getLastLocation called inside. It will give location only if last location available. Or please provide code so we can check.