Resolves Reloading of image on moving to next question in peer review (#2709)

app/src/main/java/fr/free/nrw/commons/review/ReviewActivity.java

@@ -1,12 +1,15 @@
 package fr.free.nrw.commons.review;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
 import android.widget.ProgressBar;
+import android.widget.TextView;
 
+import com.facebook.drawee.view.SimpleDraweeView;
 import com.google.android.material.navigation.NavigationView;
 import com.viewpagerindicator.CirclePageIndicator;
 
@@ -20,6 +23,7 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import fr.free.nrw.commons.Media;
 import fr.free.nrw.commons.R;
+import fr.free.nrw.commons.Utils;
 import fr.free.nrw.commons.auth.AuthenticatedActivity;
 import fr.free.nrw.commons.mwapi.MediaResult;
 import fr.free.nrw.commons.mwapi.MediaWikiApi;
@@ -33,30 +37,41 @@ import timber.log.Timber;
 
 public class ReviewActivity extends AuthenticatedActivity {
 
+    public ReviewPagerAdapter reviewPagerAdapter;
+    public ReviewController reviewController;
+    @BindView(R.id.reviewPagerIndicator)
+    public CirclePageIndicator pagerIndicator;
     @BindView(R.id.toolbar)
     Toolbar toolbar;
     @BindView(R.id.navigation_view)
     NavigationView navigationView;
     @BindView(R.id.drawer_layout)
     DrawerLayout drawerLayout;
-
     @BindView(R.id.reviewPager)
     ReviewViewPager reviewPager;
-
     @BindView(R.id.skip_image)
     Button skip_image_button;
+    @BindView(R.id.imageView)
+    SimpleDraweeView simpleDraweeView;
+    @BindView(R.id.progressBar)
+    ProgressBar progressBar;
+    @BindView(R.id.imageCaption)
+    TextView imageCaption;
+    @Inject
+    MediaWikiApi mwApi;
 
-    @Inject MediaWikiApi mwApi;
+    /**
+     * Consumers should be simply using this method to use this activity.
+     *
+     * @param context
+     * @param title   Page title
+     */
+    public static void startYourself(Context context, String title) {
+        Intent reviewActivity = new Intent(context, ReviewActivity.class);
+        context.startActivity(reviewActivity);
+    }
     @Inject
     ReviewHelper reviewHelper;
-
-    public ReviewPagerAdapter reviewPagerAdapter;
-
-    public ReviewController reviewController;
-
-    @BindView(R.id.reviewPagerIndicator)
-    public CirclePageIndicator pagerIndicator;
-
     private CompositeDisposable compositeDisposable = new CompositeDisposable();
 
 
@@ -82,20 +97,16 @@ public class ReviewActivity extends AuthenticatedActivity {
         reviewPager.setAdapter(reviewPagerAdapter);
         reviewPagerAdapter.getItem(0);
         pagerIndicator.setViewPager(reviewPager);
+        progressBar.setVisibility(View.VISIBLE);
 
         runRandomizer(); //Run randomizer whenever everything is ready so that a first random image will be added
 
         skip_image_button.setOnClickListener(view -> runRandomizer());
     }
 
-
-
+    @SuppressLint("CheckResult")
     public boolean runRandomizer() {
-        ProgressBar progressBar = reviewPagerAdapter.reviewImageFragments[reviewPager.getCurrentItem()].progressBar;
-        if (progressBar != null) {
-            progressBar.setVisibility(View.VISIBLE);
-        }
-
+        progressBar.setVisibility(View.VISIBLE);
         reviewPager.setCurrentItem(0);
         compositeDisposable.add(reviewHelper.getRandomMedia()
                 .map(Media::getFilename)
@@ -105,18 +116,22 @@ public class ReviewActivity extends AuthenticatedActivity {
         return true;
     }
 
+    @SuppressLint("CheckResult")
     private void updateImage(String fileName) {
         if (fileName.length() == 0) {
             ViewUtil.showShortSnackbar(drawerLayout, R.string.error_review);
             return;
         }
+        simpleDraweeView.setImageURI(Utils.makeThumbBaseUrl(fileName));
         reviewController.onImageRefreshed(fileName); //file name is updated
         compositeDisposable.add(reviewHelper.getFirstRevisionOfFile("File:" + fileName)
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(revision -> {
                     reviewController.firstRevision = revision;
-                    reviewPagerAdapter.updateFileInformation(fileName, revision);
+                    reviewPagerAdapter.updateFileInformation(fileName);
+                    ((TextView) imageCaption).setText(fileName + " is uploaded by: " + revision.getUser());
+                    progressBar.setVisibility(View.GONE);
                 }));
         reviewPager.setCurrentItem(0);
         compositeDisposable.add(Observable.fromCallable(() -> {
@@ -148,14 +163,4 @@ public class ReviewActivity extends AuthenticatedActivity {
             runRandomizer();
         }
     }
-
-    /**
-     * Consumers should be simply using this method to use this activity.
-     * @param context
-     * @param title Page title
-     */
-    public static void startYourself(Context context, String title) {
-        Intent reviewActivity = new Intent(context, ReviewActivity.class);
-        context.startActivity(reviewActivity);
-    }
 }

app/src/main/java/fr/free/nrw/commons/review/ReviewImageFragment.java

@@ -11,10 +11,7 @@ import android.widget.Button;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
-import com.facebook.drawee.view.SimpleDraweeView;
-
 import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.Utils;
 import fr.free.nrw.commons.di.CommonsDaggerSupportFragment;
 import fr.free.nrw.commons.media.model.MwQueryPage;
 
@@ -30,28 +27,20 @@ public class ReviewImageFragment extends CommonsDaggerSupportFragment {
     private String catString;
 
     private View textViewQuestionContext;
-    private View imageCaption;
     private View textViewQuestion;
-    private SimpleDraweeView simpleDraweeView;
 
     private Button yesButton;
     private Button noButton;
 
+
     public ProgressBar progressBar;
     private MwQueryPage.Revision revision;
 
 
-    public void update(int position, String fileName, MwQueryPage.Revision revision) {
+    public void update(int position, String fileName) {
         this.position = position;
         this.fileName = fileName;
-        this.revision = revision;
 
-        fillImageCaption();
-
-        if (simpleDraweeView != null) {
-            simpleDraweeView.setImageURI(Utils.makeThumbBaseUrl(fileName));
-            progressBar.setVisibility(View.GONE);
-        }
     }
 
     public void updateCategories(Iterable<String> categories) {
@@ -78,15 +67,11 @@ public class ReviewImageFragment extends CommonsDaggerSupportFragment {
         position = getArguments().getInt("position");
         View layoutView = inflater.inflate(R.layout.fragment_review_image, container,
                 false);
-        progressBar = layoutView.findViewById(R.id.progressBar);
         textViewQuestion = layoutView.findViewById(R.id.reviewQuestion);
         textViewQuestionContext = layoutView.findViewById(R.id.reviewQuestionContext);
-        imageCaption = layoutView.findViewById(R.id.imageCaption);
         yesButton = layoutView.findViewById(R.id.yesButton);
         noButton = layoutView.findViewById(R.id.noButton);
 
-        fillImageCaption();
-
         String question, explanation, yesButtonText, noButtonText;
         switch (position) {
             case COPYRIGHT:
@@ -125,7 +110,7 @@ public class ReviewImageFragment extends CommonsDaggerSupportFragment {
                     getReviewActivity().swipeToNext();
                 });
                 break;
-            default :
+            default:
                 question = "How did we get here?";
                 explanation = "No idea.";
                 yesButtonText = "yes";
@@ -139,26 +124,13 @@ public class ReviewImageFragment extends CommonsDaggerSupportFragment {
         yesButton.setText(yesButtonText);
         noButton.setText(noButtonText);
 
-        if(position==CATEGORY){
+        if (position == CATEGORY) {
             updateCategories(ReviewController.categories);
         }
 
-        simpleDraweeView = layoutView.findViewById(R.id.imageView);
-
-        if (fileName != null) {
-            simpleDraweeView.setImageURI(Utils.makeThumbBaseUrl(fileName));
-            progressBar.setVisibility(View.GONE);
-        }
         return layoutView;
     }
-
     private ReviewActivity getReviewActivity() {
         return (ReviewActivity) requireActivity();
     }
-
-    private void fillImageCaption() {
-        if (imageCaption != null && fileName != null && revision != null) {
-            ((TextView) imageCaption).setText(fileName + " is uploaded by: " + revision.getUser());
-        }
-    }
 }

app/src/main/java/fr/free/nrw/commons/review/ReviewPagerAdapter.java

@@ -13,11 +13,11 @@ public class ReviewPagerAdapter extends FragmentStatePagerAdapter {
 
     public ReviewPagerAdapter(FragmentManager fm) {
         super(fm);
-        reviewImageFragments = new ReviewImageFragment[] {
-            new ReviewImageFragment(),
-            new ReviewImageFragment(),
-            new ReviewImageFragment(),
-            new ReviewImageFragment()
+        reviewImageFragments = new ReviewImageFragment[]{
+                new ReviewImageFragment(),
+                new ReviewImageFragment(),
+                new ReviewImageFragment(),
+                new ReviewImageFragment()
         };
     }
 
@@ -26,10 +26,10 @@ public class ReviewPagerAdapter extends FragmentStatePagerAdapter {
         return reviewImageFragments.length;
     }
 
-    public void updateFileInformation(String fileName, MwQueryPage.Revision revision) {
+    public void updateFileInformation(String fileName) {
         for (int i = 0; i < getCount(); i++) {
             ReviewImageFragment fragment = reviewImageFragments[i];
-            fragment.update(i, fileName, revision);
+            fragment.update(i, fileName);
         }
     }