Empty screen if no upload fix (#1940)

* Updated contribution screen to show message for no uploads by default, message gets wiped after any picture is inserted into the list

* Changed string as suggested

* Added margin

Author: Rulino

app/src/main/java/fr/free/nrw/commons/contributions/ContributionsActivity.java

@@ -256,6 +256,9 @@ public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
             ((CursorAdapter) contributionsList.getAdapter()).swapCursor(cursor);
         }
 
+        if(contributionsList.getAdapter().getCount()>0){
+            contributionsList.changeEmptyScreen(false);
+        }
         contributionsList.clearSyncMessage();
         notifyAndMigrateDataSetObservers();
     }

app/src/main/java/fr/free/nrw/commons/contributions/ContributionsListFragment.java

@@ -47,6 +47,8 @@ public class ContributionsListFragment extends CommonsDaggerSupportFragment {
     TextView waitingMessage;
     @BindView(R.id.loadingContributionsProgressBar)
     ProgressBar progressBar;
+    @BindView(R.id.noDataYet)
+    TextView noDataYet;
 
     @Inject
     @Named("prefs")
@@ -79,6 +81,7 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle sa
             waitingMessage.setVisibility(GONE);
         }
 
+        changeEmptyScreen(true);
         changeProgressBarVisibility(true);
         return v;
     }
@@ -95,6 +98,10 @@ public void setAdapter(ListAdapter adapter) {
         }
     }
 
+    public void changeEmptyScreen(boolean isEmpty){
+        this.noDataYet.setVisibility(isEmpty ? View.VISIBLE : View.GONE);
+    }
+
     public void changeProgressBarVisibility(boolean isVisible) {
         this.progressBar.setVisibility(isVisible ? View.VISIBLE : View.GONE);
     }

app/src/main/res/layout/fragment_contributions.xml

@@ -7,6 +7,18 @@
     android:background="?attr/mainBackground"
     >
 
+    <TextView
+        android:id="@+id/noDataYet"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/no_uploads"
+        android:gravity="center"
+        android:layout_centerInParent="true"
+        android:visibility="gone"
+        android:layout_marginRight="@dimen/tiny_gap"
+        android:layout_marginEnd="@dimen/tiny_gap"
+        />
+
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"

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

@@ -358,4 +358,6 @@
   <string name="write_storage_permission_rationale_for_image_share">We need your permission to access the external storage of your device in order to upload images.</string>
 
   <string name="log_collection_started">Log collection started. Please RESTART the app, perform action that you wish to log, and then tap \'Send Logs\' again</string>
+  <string name="no_uploads">Welcome to Commons!\n
+Upload your first media by touching the camera or gallery icon above.</string>
 </resources>