"Check updates" button will now show "Checking..." status only if it is really checking for updates

Since the button has to be disabled while app list is compiled, users
are confused by the "Checking..." status. The button will just show
ellipsis now while the app list is being built.

app/src/main/java/com/github/yeriomin/yalpstore/ForegroundUpdatableAppsTask.java

@@ -42,7 +42,7 @@ class ForegroundUpdatableAppsTask extends UpdatableAppsTask {
         super.onPreExecute();
         Button button = activity.findViewById(R.id.check_updates);
         button.setEnabled(false);
-        button.setText(R.string.details_download_checking);
+        button.setText(R.string.ellipsis);
     }
 
     @Override
@@ -69,6 +69,14 @@ class ForegroundUpdatableAppsTask extends UpdatableAppsTask {
         button.setText(R.string.list_check_updates);
     }
 
+    @Override
+    protected void onProgressUpdate(Void... values) {
+        super.onProgressUpdate(values);
+        Button button = activity.findViewById(R.id.check_updates);
+        button.setEnabled(false);
+        button.setText(R.string.details_download_checking);
+    }
+
     private App getSelf() {
         if (installedApps.containsKey(BuildConfig.APPLICATION_ID)) {
             return installedApps.get(BuildConfig.APPLICATION_ID);

app/src/main/java/com/github/yeriomin/yalpstore/UpdatableAppsTask.java

@@ -87,6 +87,7 @@ public class UpdatableAppsTask extends GoogleApiAsyncTask {
             installedApps = filterSystemApps(installedApps);
         }
         // Requesting info from Google Play Market for installed apps
+        publishProgress();
         List<App> appsFromPlayStore = new ArrayList<>();
         try {
             appsFromPlayStore.addAll(getAppsFromPlayStore(filterBlacklistedApps(context, installedApps).keySet()));

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

@@ -23,4 +23,5 @@
     <string name="details_installs" translatable="false">"%1$s↓"</string>
     <string name="details_rating" translatable="false">"%1$.1f★"</string>
     <string name="details_rating_specific" translatable="false">"%1$d★ %2$d"</string>
+    <string name="ellipsis" translatable="false">"…"</string>
 </resources>