Fix bug that don't load maps due to permission error

app/src/main/java/fr/mobdev/blooddonation/activity/MainActivity.java

@@ -39,6 +39,7 @@ import android.app.Fragment;
 import android.app.FragmentManager;
 import android.app.FragmentTransaction;
 import android.content.DialogInterface;
+import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
@@ -57,6 +58,7 @@ import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.ImageButton;
 import android.widget.PopupMenu;
+import android.widget.Toast;
 
 import java.text.DateFormat;
 import java.util.ArrayList;
@@ -129,6 +131,20 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
         }
     }
 
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if(requestCode == 1 && (grantResults[0] == PackageManager.PERMISSION_GRANTED || grantResults[1] == PackageManager.PERMISSION_GRANTED)) {
+            FragmentManager manager = getFragmentManager();
+            Fragment frag = manager.findFragmentById(R.id.fragment_container);
+            if(frag instanceof MapsFragment) {
+                ((MapsFragment)frag).startUpdateLocations();
+            }
+        }
+        if(requestCode == 2 && grantResults[0] != PackageManager.PERMISSION_GRANTED) {
+            Toast.makeText(this,R.string.need_write,Toast.LENGTH_LONG).show();
+        }
+    }
 
     @Override
     protected void onPostCreate(Bundle savedInstanceState) {

app/src/main/java/fr/mobdev/blooddonation/fragment/MapsFragment.java

@@ -39,6 +39,7 @@ import android.view.ViewGroup;
 import android.widget.ImageButton;
 import android.widget.LinearLayout;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.car2go.maps.AnyMap;
 import com.car2go.maps.OnMapReadyCallback;
@@ -271,14 +272,6 @@ public class MapsFragment extends Fragment implements OnMapReadyCallback {
         map = null;
     }
 
-    @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-        if(grantResults[0] == PackageManager.PERMISSION_GRANTED || grantResults[1] == PackageManager.PERMISSION_GRANTED) {
-            startUpdateLocations();
-        }
-    }
-
     public void startUpdateLocations() {
         if(getActivity() == null)
             return;
@@ -292,7 +285,8 @@ public class MapsFragment extends Fragment implements OnMapReadyCallback {
         }
 
         LocationManager manager = (LocationManager) getActivity().getSystemService(LOCATION_SERVICE);
-        if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
+        if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED ||
+                ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
             String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.ACCESS_COARSE_LOCATION};
             ActivityCompat.requestPermissions(getActivity(),permissions,1);
         } else {
@@ -346,6 +340,13 @@ public class MapsFragment extends Fragment implements OnMapReadyCallback {
     @Override
     public void onMapReady(AnyMap anyMap) {
         map = anyMap;
+
+        if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED ||
+                ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
+            String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
+            ActivityCompat.requestPermissions(getActivity(),permissions,2);
+        }
+
         startUpdateLocations();
 
         country = Country.FRANCE;