Allow disabling update check

app/src/main/java/eu/faircode/email/ActivityView.java

@@ -573,10 +573,13 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
     }
 
     private void checkUpdate() {
-        final long now = new Date().getTime();
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+        long now = new Date().getTime();
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+        if (!prefs.getBoolean("updates", true))
+            return;
         if (prefs.getLong("last_update_check", 0) + UPDATE_INTERVAL > now)
             return;
+        prefs.edit().putLong("last_update_check", now).apply();
 
         new SimpleTask<UpdateInfo>() {
             @Override
@@ -593,17 +596,18 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
                         json.append(line);
 
                     JSONObject jroot = new JSONObject(json.toString());
+
                     if (jroot.has("tag_name") &&
                             jroot.has("html_url") &&
                             jroot.has("assets")) {
-                        prefs.edit().putLong("last_update_check", now).apply();
-
+                        // Get update info
                         UpdateInfo info = new UpdateInfo();
                         info.tag_name = jroot.getString("tag_name");
                         info.html_url = jroot.getString("html_url");
                         if (TextUtils.isEmpty(info.html_url))
                             return null;
 
+                        // Check if new release
                         JSONArray jassets = jroot.getJSONArray("assets");
                         for (int i = 0; i < jassets.length(); i++) {
                             JSONObject jasset = jassets.getJSONObject(i);
@@ -622,12 +626,12 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
                             }
                         }
                     }
+
+                    return null;
                 } finally {
                     if (urlConnection != null)
                         urlConnection.disconnect();
                 }
-
-                return null;
             }
 
             @Override

app/src/main/java/eu/faircode/email/FragmentOptions.java

@@ -53,6 +53,7 @@ public class FragmentOptions extends FragmentEx implements SharedPreferences.OnS
     private SwitchCompat swSender;
     private SwitchCompat swInsecure;
     private Spinner spDownload;
+    private SwitchCompat swUpdates;
     private SwitchCompat swDebug;
 
     @Override
@@ -75,6 +76,7 @@ public class FragmentOptions extends FragmentEx implements SharedPreferences.OnS
         swSender = view.findViewById(R.id.swSender);
         swInsecure = view.findViewById(R.id.swInsecure);
         spDownload = view.findViewById(R.id.spDownload);
+        swUpdates = view.findViewById(R.id.swUpdates);
         swDebug = view.findViewById(R.id.swDebug);
 
         // Wire controls
@@ -222,6 +224,15 @@ public class FragmentOptions extends FragmentEx implements SharedPreferences.OnS
             }
         });
 
+        swUpdates.setChecked(prefs.getBoolean("updates", true));
+        swUpdates.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("updates", checked).apply();
+            }
+        });
+        swUpdates.setVisibility(Helper.isPlayStoreInstall(getContext()) ? View.GONE : View.VISIBLE);
+
         swDebug.setChecked(prefs.getBoolean("debug", false));
         swDebug.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override

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

@@ -137,10 +137,20 @@
             android:layout_height="wrap_content"
             android:layout_marginStart="12dp"
             android:entries="@array/downloadNames"
+            app:layout_constraintBottom_toBottomOf="@id/tvDownload"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/tvDownload"
             app:layout_constraintTop_toTopOf="@id/tvDownload" />
 
+        <androidx.appcompat.widget.SwitchCompat
+            android:id="@+id/swUpdates"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_advanced_updates"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tvDownload" />
+
         <androidx.appcompat.widget.SwitchCompat
             android:id="@+id/swDebug"
             android:layout_width="match_parent"
@@ -148,6 +158,6 @@
             android:layout_marginTop="12dp"
             android:text="@string/title_advanced_debug"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/tvDownload" />
+            app:layout_constraintTop_toBottomOf="@id/swUpdates" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </ScrollView>

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

@@ -104,6 +104,7 @@
     <string name="title_advanced_sender">Allow editing sender address</string>
     <string name="title_advanced_sender_hint">Most providers do not allow modified sender addresses</string>
     <string name="title_advanced_download">Automatically download messages and attachments on a metered connection up to</string>
+    <string name="title_advanced_updates">Check for updates</string>
     <string name="title_advanced_debug">Debug mode</string>
 
     <string name="title_select">Select &#8230;</string>