Removed cache lists options

List caching is managed automatically

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

@@ -51,17 +51,16 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private SwitchCompat swAuthentication;
     private SwitchCompat swParanoid;
     private TextView tvParanoidHint;
-    private SwitchCompat swCacheLists;
-    private TextView tvCacheListsHint;
     private SwitchCompat swWatchdog;
     private SwitchCompat swUpdates;
     private SwitchCompat swCrashReports;
     private SwitchCompat swDebug;
 
+    private TextView tvMemoryClass;
     private TextView tvLastCleanup;
 
     private final static String[] RESET_OPTIONS = new String[]{
-            "badge", "subscriptions", "subscribed_only", "english", "authentication", "paranoid", "cache_lists", "watchdog", "updates", "crash_reports", "debug"
+            "badge", "subscriptions", "subscribed_only", "english", "authentication", "paranoid", "watchdog", "updates", "crash_reports", "debug"
     };
 
     private final static String[] RESET_QUESTIONS = new String[]{
@@ -85,13 +84,12 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swAuthentication = view.findViewById(R.id.swAuthentication);
         swParanoid = view.findViewById(R.id.swParanoid);
         tvParanoidHint = view.findViewById(R.id.tvParanoidHint);
-        swCacheLists = view.findViewById(R.id.swCacheLists);
-        tvCacheListsHint = view.findViewById(R.id.tvCacheListsHint);
         swWatchdog = view.findViewById(R.id.swWatchdog);
         swUpdates = view.findViewById(R.id.swUpdates);
         swCrashReports = view.findViewById(R.id.swCrashReports);
         swDebug = view.findViewById(R.id.swDebug);
 
+        tvMemoryClass = view.findViewById(R.id.tvMemoryClass);
         tvLastCleanup = view.findViewById(R.id.tvLastCleanup);
 
         setOptions();
@@ -158,13 +156,6 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             });
         }
 
-        swCacheLists.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
-                prefs.edit().putBoolean("cache_lists", checked).apply();
-            }
-        });
-
         swWatchdog.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -256,7 +247,6 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swEnglish.setChecked(prefs.getBoolean("english", false));
         swAuthentication.setChecked(prefs.getBoolean("authentication", false));
         swParanoid.setChecked(prefs.getBoolean("paranoid", true));
-        swCacheLists.setChecked(prefs.getBoolean("cache_lists", true));
         swWatchdog.setChecked(prefs.getBoolean("watchdog", true));
         swUpdates.setChecked(prefs.getBoolean("updates", true));
         swUpdates.setVisibility(Helper.isPlayStoreInstall(getContext()) ? View.GONE : View.VISIBLE);
@@ -265,8 +255,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
 
         ActivityManager am = (ActivityManager) getContext().getSystemService(Context.ACTIVITY_SERVICE);
         int class_mb = am.getMemoryClass();
-
-        tvCacheListsHint.setText(getString(R.string.title_advanced_cache_list_hint, class_mb + " MB"));
+        tvMemoryClass.setText(getString(R.string.title_advanced_memory_class, class_mb + " MB"));
     }
 
     private void setLastCleanup(long time) {

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

@@ -159,14 +159,11 @@ public class ViewModelMessages extends ViewModel {
         owner.getLifecycle().addObserver(new LifecycleObserver() {
             @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
             public void onDestroyed() {
-                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-                boolean cache = prefs.getBoolean("cache_lists", true);
-
                 int free_mb = Log.getFreeMemMb();
                 boolean lowmem = (free_mb < LOW_MEM_MB);
 
                 Log.i("Destroy model=" + viewType +
-                        " cache=" + cache + " lowmem=" + lowmem + " free=" + free_mb + " MB");
+                        " lowmem=" + lowmem + " free=" + free_mb + " MB");
 
                 Model model = models.get(viewType);
                 if (model != null) {
@@ -174,7 +171,7 @@ public class ViewModelMessages extends ViewModel {
                     model.list.removeObservers(owner);
                 }
 
-                if (viewType == AdapterMessage.ViewType.THREAD || !cache || lowmem) {
+                if (viewType == AdapterMessage.ViewType.THREAD || lowmem) {
                     Log.i("Remove model=" + viewType);
                     remove(viewType);
                 }

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

@@ -125,28 +125,6 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@id/swParanoid" />
 
-            <androidx.appcompat.widget.SwitchCompat
-                android:id="@+id/swCacheLists"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="12dp"
-                android:text="@string/title_advanced_cache_lists"
-                app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toBottomOf="@id/tvParanoidHint"
-                app:switchPadding="12dp" />
-
-            <TextView
-                android:id="@+id/tvCacheListsHint"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_marginEnd="48dp"
-                android:text="@string/title_advanced_cache_list_hint"
-                android:textAppearance="@style/TextAppearance.AppCompat.Small"
-                android:textStyle="italic"
-                app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toBottomOf="@id/swCacheLists" />
-
             <androidx.appcompat.widget.SwitchCompat
                 android:id="@+id/swWatchdog"
                 android:layout_width="match_parent"
@@ -154,7 +132,7 @@
                 android:layout_marginTop="12dp"
                 android:text="@string/title_advanced_watchdog"
                 app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toBottomOf="@id/tvCacheListsHint"
+                app:layout_constraintTop_toBottomOf="@id/tvParanoidHint"
                 app:switchPadding="12dp" />
 
             <androidx.appcompat.widget.SwitchCompat
@@ -200,17 +178,29 @@
                 app:layout_constraintTop_toBottomOf="@id/swDebug" />
 
             <TextView
-                android:id="@+id/tvLastCleanup"
+                android:id="@+id/tvMemoryClass"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="24dp"
                 android:layout_marginEnd="48dp"
-                android:text="@string/title_advanced_last_cleanup"
+                android:text="@string/title_advanced_memory_class"
                 android:textAppearance="@style/TextAppearance.AppCompat.Small"
                 android:textStyle="italic"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@id/tvDebugHint" />
+
+            <TextView
+                android:id="@+id/tvLastCleanup"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="48dp"
+                android:text="@string/title_advanced_last_cleanup"
+                android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                android:textStyle="italic"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/tvMemoryClass" />
         </androidx.constraintlayout.widget.ConstraintLayout>
     </ScrollView>
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -225,11 +225,11 @@
     <string name="title_advanced_english">Force English language</string>
     <string name="title_advanced_authentication">Show a warning when the receiving server could not authenticate the message</string>
     <string name="title_advanced_paranoid">Extra privacy features</string>
-    <string name="title_advanced_cache_lists">Cache message lists</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_crash_reports">Send error reports</string>
     <string name="title_advanced_debug">Debug mode</string>
+    <string name="title_advanced_memory_class">Memory class: %1$s</string>
     <string name="title_advanced_last_cleanup">Last cleanup: %1$s</string>
 
     <string name="title_advanced_enabled_hint">Globally disable or enable receiving of messages</string>
@@ -253,7 +253,6 @@
     <string name="title_advanced_badge_hint">Only available on supported launchers</string>
     <string name="title_advanced_english_hint">This will restart the app</string>
     <string name="title_advanced_paranoid_hint">See the FAQ for details</string>
-    <string name="title_advanced_cache_list_hint">Memory available: %1$s</string>
     <string name="title_advanced_debug_hint">Enable extra logging and show debug information at various places</string>
 
     <string name="title_select">Select &#8230;</string>