fixes blank screen decrepancy when sharing items from external apps (#5345)

* fixes blank screen decrepancy when sharing items from external apps

* reverts comment removal

Author: srishti-R

app/src/main/java/fr/free/nrw/commons/filepicker/Constants.java

@@ -8,6 +8,7 @@ public interface Constants {
      */
     interface RequestCodes {
         int LOCATION = 1;
+        int STORAGE = 2;
         int FILE_PICKER_IMAGE_IDENTIFICATOR = 0b1101101100; //876
         int SOURCE_CHOOSER = 1 << 15;
 

app/src/main/java/fr/free/nrw/commons/upload/UploadActivity.java

@@ -10,9 +10,12 @@
 import android.annotation.SuppressLint;
 import android.app.ProgressDialog;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.location.Location;
 import android.location.LocationManager;
 import android.os.Build;
+import android.os.Build.VERSION;
+import android.os.Build.VERSION_CODES;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.util.DisplayMetrics;
@@ -21,6 +24,7 @@
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
+import androidx.annotation.NonNull;
 import androidx.cardview.widget.CardView;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
@@ -38,6 +42,7 @@
 import fr.free.nrw.commons.auth.LoginActivity;
 import fr.free.nrw.commons.auth.SessionManager;
 import fr.free.nrw.commons.contributions.ContributionController;
+import fr.free.nrw.commons.filepicker.Constants.RequestCodes;
 import fr.free.nrw.commons.filepicker.UploadableFile;
 import fr.free.nrw.commons.kvstore.JsonKvStore;
 import fr.free.nrw.commons.location.LatLng;
@@ -59,7 +64,6 @@
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
 import io.reactivex.schedulers.Schedulers;
-import java.security.Permission;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -150,11 +154,6 @@ protected void onCreate(Bundle savedInstanceState) {
         compositeDisposable = new CompositeDisposable();
         init();
         nearbyPopupAnswers = new HashMap<>();
-        PermissionUtils.checkPermissionsAndPerformAction(this,
-            this::receiveSharedItems,
-            R.string.storage_permission_title,
-            R.string.write_storage_permission_rationale_for_image_share,
-            PERMISSIONS_STORAGE);
         //getting the current dpi of the device and if it is less than 320dp i.e. overlapping
         //threshold, thumbnails automatically minimizes
         DisplayMetrics metrics = getResources().getDisplayMetrics();
@@ -167,6 +166,7 @@ protected void onCreate(Bundle savedInstanceState) {
         }
         locationManager.requestLocationUpdatesFromProvider(LocationManager.GPS_PROVIDER);
         locationManager.requestLocationUpdatesFromProvider(LocationManager.NETWORK_PROVIDER);
+        checkStoragePermissions();
     }
 
     private void init() {
@@ -232,7 +232,6 @@ protected void onResume() {
             askUserToLogIn();
         }
         checkBlockStatus();
-        checkStoragePermissions();
     }
 
     /**
@@ -255,14 +254,10 @@ protected void checkBlockStatus() {
 
     private void checkStoragePermissions() {
         final boolean hasAllPermissions = PermissionUtils.hasPermission(this, PERMISSIONS_STORAGE);
-        if (!hasAllPermissions) {
-            PermissionUtils.checkPermissionsAndPerformAction(this,
-                () -> {
-                    //TODO handle this
-                },
-                R.string.storage_permission_title,
-                R.string.write_storage_permission_rationale_for_image_share,
-                PERMISSIONS_STORAGE);
+        if (hasAllPermissions) {
+            receiveSharedItems();
+        } else if (VERSION.SDK_INT >= VERSION_CODES.M) {
+            requestPermissions(PERMISSIONS_STORAGE, RequestCodes.STORAGE);
         }
     }
 
@@ -350,7 +345,44 @@ public void askUserToLogIn() {
         startActivity(loginIntent);
     }
 
+    @Override
+    public void onRequestPermissionsResult(final int requestCode,
+        @NonNull final String[] permissions,
+        @NonNull final int[] grantResults) {
+        boolean areAllGranted = false;
+        if (requestCode == RequestCodes.STORAGE) {
+            if (VERSION.SDK_INT >= VERSION_CODES.M) {
+                for (int i = 0; i < grantResults.length; i++) {
+                    String permission = permissions[i];
+                    areAllGranted = grantResults[i] == PackageManager.PERMISSION_GRANTED;
+                    if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
+                        boolean showRationale = shouldShowRequestPermissionRationale(permission);
+                        if (!showRationale) {
+                            DialogUtil.showAlertDialog(this,
+                                getString(R.string.storage_permissions_denied),
+                                getString(R.string.unable_to_share_upload_item),
+                                getString(android.R.string.ok),
+                                this::finish,
+                                false);
+                        } else {
+                            DialogUtil.showAlertDialog(this,
+                                getString(R.string.storage_permission_title),
+                                getString(
+                                    R.string.write_storage_permission_rationale_for_image_share),
+                                getString(android.R.string.ok),
+                                this::checkStoragePermissions,
+                                false);
+                        }
+                    }
+                }
 
+                if (areAllGranted) {
+                    receiveSharedItems();
+                }
+            }
+        }
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+    }
 
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {

app/src/main/res/values/strings.xml

@@ -775,6 +775,8 @@ Upload your first media by tapping on the add button.</string>
   <string name="full_screen_mode_features_info">Swipe fast and long to perform these actions: \n- Left/Right: Go to previous/next \n- Up: Select\n- Down: Mark as not for upload.</string>
   <string name="set_up_avatar_toast_string">To set up your leaderboard avatar, tap \"Set as avatar\" in the three-dots menu of any image.</string>
   <string name="similar_coordinate_description_auto_set">The coordinates are not the exact coordinates, but the person who uploaded this picture thinks they are close enough.</string>
+  <string name="storage_permissions_denied">Storage Permissions Denied</string>
+  <string name="unable_to_share_upload_item">Unable to share this item</string>
   <plurals name="custom_picker_images_selected_title_appendix">
     <item quantity="one">%d image selected</item>
     <item quantity="other">%d images selected</item>