Handled null CompoundDrawable[2] in etTitle-> UploadMediaDetailsFragment (commons-app#3828)

Author: ashishkumar468

app/src/main/java/fr/free/nrw/commons/upload/mediaDetails/UploadMediaDetailFragment.java

@@ -4,7 +4,6 @@
 
 import android.annotation.SuppressLint;
 import android.content.Context;
-import android.net.Uri;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
@@ -24,19 +23,13 @@
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import com.facebook.drawee.backends.pipeline.Fresco;
-import com.facebook.drawee.drawable.ScalingUtils.ScaleType;
-import com.facebook.drawee.generic.GenericDraweeHierarchy;
-import com.facebook.drawee.generic.GenericDraweeHierarchyBuilder;
-import com.facebook.drawee.interfaces.DraweeController;
+import com.github.chrisbanes.photoview.PhotoView;
 import com.jakewharton.rxbinding2.widget.RxTextView;
 import fr.free.nrw.commons.R;
 import fr.free.nrw.commons.Utils;
 import fr.free.nrw.commons.filepicker.UploadableFile;
 import fr.free.nrw.commons.kvstore.JsonKvStore;
 import fr.free.nrw.commons.location.LatLng;
-import fr.free.nrw.commons.media.zoomControllers.zoomable.DoubleTapGestureListener;
-import fr.free.nrw.commons.media.zoomControllers.zoomable.ZoomableDraweeView;
 import fr.free.nrw.commons.nearby.Place;
 import fr.free.nrw.commons.settings.Prefs;
 import fr.free.nrw.commons.upload.Description;
@@ -51,7 +44,6 @@
 import fr.free.nrw.commons.utils.ImageUtils;
 import fr.free.nrw.commons.utils.ViewUtil;
 import io.reactivex.disposables.Disposable;
-import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -77,7 +69,7 @@ public class UploadMediaDetailFragment extends UploadBaseFragment implements
     @BindView(R.id.rv_descriptions)
     RecyclerView rvDescriptions;
     @BindView(R.id.backgroundImage)
-    ZoomableDraweeView photoViewBackgroundImage;
+    PhotoView photoViewBackgroundImage;
     @BindView(R.id.btn_next)
     AppCompatButton btnNext;
     @BindView(R.id.btn_previous)
@@ -172,24 +164,9 @@ private void init() {
             btnCopyPreviousTitleDesc.setVisibility(View.VISIBLE);
         }
 
-        addEtTitleTouchListener();
-    }
+        attachImageViewScaleChangeListener();
 
-    private void showImageWithLocalUri(Uri imageUri) {
-        if (imageUri != null) {
-            GenericDraweeHierarchy hierarchy = GenericDraweeHierarchyBuilder.newInstance(getResources())
-                .setActualImageScaleType(ScaleType.FIT_XY)
-                .build();
-            photoViewBackgroundImage.setHierarchy(hierarchy);
-            photoViewBackgroundImage
-                .setTapListener(new DoubleTapGestureListener(photoViewBackgroundImage));
-            DraweeController controller = Fresco.newDraweeControllerBuilder()
-                .setUri(Uri.fromFile(new File(imageUri.getPath())))
-                .build();
-            photoViewBackgroundImage.setTransformationListener(
-                () -> expandCollapseMediaDetail(false));
-            photoViewBackgroundImage.setController(controller);
-        }
+        addEtTitleTouchListener();
     }
 
     /**
@@ -223,6 +200,17 @@ private float convertDpToPixel(float dp, Context context) {
         return dp * ((float) context.getResources().getDisplayMetrics().densityDpi / DisplayMetrics.DENSITY_DEFAULT);
     }
 
+    /**
+     * Attaches the scale change listener to the image view
+     */
+    private void attachImageViewScaleChangeListener() {
+        photoViewBackgroundImage.setOnScaleChangeListener(
+                (scaleFactor, focusX, focusY) -> {
+                    //Whenever the uses plays with the image, lets collapse the media detail container
+                    expandCollapseLlMediaDetail(false);
+                });
+    }
+
     /**
      * attach the presenter with the view
      */
@@ -298,7 +286,7 @@ public void onImageProcessed(UploadItem uploadItem, Place place) {
         }
 
         descriptions = uploadItem.getDescriptions();
-        showImageWithLocalUri(uploadItem.getMediaUri());
+        photoViewBackgroundImage.setImageURI(uploadItem.getMediaUri());
         setDescriptionsInAdapter(descriptions);
     }
 
@@ -407,17 +395,14 @@ public void onDestroyView() {
 
     @OnClick(R.id.rl_container_title)
     public void onRlContainerTitleClicked() {
-        expandCollapseMediaDetail(!isExpanded);
+        expandCollapseLlMediaDetail(!isExpanded);
     }
 
     /**
      * show hide media detail based on
      * @param shouldExpand
      */
-    private void expandCollapseMediaDetail(boolean shouldExpand){
-        if (isExpanded == shouldExpand) {
-            return;
-        }
+    private void expandCollapseLlMediaDetail(boolean shouldExpand){
         llContainerMediaDetail.setVisibility(shouldExpand ? View.VISIBLE : View.GONE);
         isExpanded = !isExpanded;
         ibExpandCollapse.setRotation(ibExpandCollapse.getRotation() + 180);