Added option for experimental features

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

@@ -38,12 +38,13 @@ public class FragmentOptions extends FragmentBase {
     private PagerAdapter adapter;
 
     static String[] OPTIONS_RESTART = new String[]{
+            "subscriptions",
             "startup", "cards", "date", "threading", "highlight_unread", "avatars", "generated_icons", "identicons", "circular",
             "name_email", "subject_top", "subject_italic", "flags", "preview", "preview_italic",
             "addresses", "attachments_alt", "contrast", "monospaced", "inline_images",
             "contact_images", "all_images", "collapse_quotes", "autocontent", "actionbar",
             "autoscroll", "swipenav", "autoexpand", "autoclose", "onclose",
-            "subscriptions", "debug",
+            "experiments", "debug",
             "biometrics"
     };
 

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

@@ -50,6 +50,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private SwitchCompat swEnglish;
     private SwitchCompat swWatchdog;
     private SwitchCompat swUpdates;
+    private SwitchCompat swExperiments;
     private SwitchCompat swCrashReports;
     private SwitchCompat swDebug;
     private Button btnCleanup;
@@ -62,7 +63,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private Group grpDebug;
 
     private final static String[] RESET_OPTIONS = new String[]{
-            "double_back", "biometrics_timeout", "english", "watchdog", "updates", "crash_reports", "debug"
+            "double_back", "biometrics_timeout", "english", "watchdog", "updates", "experiments", "crash_reports", "debug"
     };
 
     private final static String[] RESET_QUESTIONS = new String[]{
@@ -84,6 +85,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swEnglish = view.findViewById(R.id.swEnglish);
         swWatchdog = view.findViewById(R.id.swWatchdog);
         swUpdates = view.findViewById(R.id.swUpdates);
+        swExperiments = view.findViewById(R.id.swExperiments);
         swCrashReports = view.findViewById(R.id.swCrashReports);
         swDebug = view.findViewById(R.id.swDebug);
         btnCleanup = view.findViewById(R.id.btnCleanup);
@@ -148,6 +150,13 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             }
         });
 
+        swExperiments.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("experiments", checked).apply();
+            }
+        });
+
         swCrashReports.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -270,6 +279,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swUpdates.setVisibility(
                 Helper.isPlayStoreInstall(getContext()) || !Helper.hasValidFingerprint(getContext())
                         ? View.GONE : View.VISIBLE);
+        swExperiments.setChecked(prefs.getBoolean("experiments", false));
         swCrashReports.setChecked(prefs.getBoolean("crash_reports", false));
         swDebug.setChecked(prefs.getBoolean("debug", false));
 

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

@@ -99,6 +99,18 @@
                 app:layout_constraintTop_toBottomOf="@id/swWatchdog"
                 app:switchPadding="12dp" />
 
+            <androidx.appcompat.widget.SwitchCompat
+                android:id="@+id/swExperiments"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="12dp"
+                android:checked="true"
+                android:text="@string/title_advanced_experiments"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/swUpdates"
+                app:switchPadding="12dp" />
+
             <androidx.appcompat.widget.SwitchCompat
                 android:id="@+id/swCrashReports"
                 android:layout_width="0dp"
@@ -107,7 +119,7 @@
                 android:text="@string/title_advanced_crash_reports"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toBottomOf="@id/swUpdates"
+                app:layout_constraintTop_toBottomOf="@id/swExperiments"
                 app:switchPadding="12dp" />
 
             <androidx.appcompat.widget.SwitchCompat

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

@@ -291,6 +291,7 @@
     <string name="title_advanced_english">Force English language</string>
     <string name="title_advanced_watchdog">Periodically check if FairEmail is still active</string>
     <string name="title_advanced_updates">Check for updates</string>
+    <string name="title_advanced_experiments">Try experimental features</string>
     <string name="title_advanced_crash_reports">Send error reports</string>
     <string name="title_advanced_debug">Debug mode</string>
     <string name="title_advanced_cleanup">Cleanup</string>