Build memory limiter for android

app/src/main/java/io/nekohasekai/sfa/bg/BoxService.kt

@@ -122,6 +122,7 @@ class BoxService(
 
             DefaultNetworkMonitor.start()
             Libbox.registerLocalDNSTransport(LocalResolver)
+            Libbox.setMemoryLimit(!Settings.disableMemoryLimit)
 
             val newService = try {
                 Libbox.newService(content, platformInterface)

app/src/main/java/io/nekohasekai/sfa/constant/SettingsKey.kt

@@ -6,6 +6,7 @@ object SettingsKey {
     const val SERVICE_MODE = "service_mode"
     const val ANALYTICS_ALLOWED = "analytics_allowed"
     const val CHECK_UPDATE_ENABLED = "check_update_enabled"
+    const val DISABLE_MEMORY_LIMIT = "disable_memory_limit"
 
     // cache
 

app/src/main/java/io/nekohasekai/sfa/database/Settings.kt

@@ -42,6 +42,7 @@ object Settings {
 
     var analyticsAllowed by dataStore.int(SettingsKey.ANALYTICS_ALLOWED) { ANALYSIS_UNKNOWN }
     var checkUpdateEnabled by dataStore.boolean(SettingsKey.CHECK_UPDATE_ENABLED) { true }
+    var disableMemoryLimit by dataStore.boolean(SettingsKey.DISABLE_MEMORY_LIMIT)
 
     fun serviceClass(): Class<*> {
         return when (serviceMode) {

app/src/main/java/io/nekohasekai/sfa/ui/main/SettingsFragment.kt

@@ -74,6 +74,12 @@ class SettingsFragment : Fragment() {
                 }
             }
         }
+        binding.disableMemoryLimit.addTextChangedListener {
+            lifecycleScope.launch(Dispatchers.IO) {
+                val newValue = EnabledType.valueOf(it).boolValue
+                Settings.disableMemoryLimit = !newValue
+            }
+        }
         binding.communityButton.setOnClickListener {
             it.context.launchCustomTab("https://community.sagernet.org/")
         }
@@ -97,6 +103,8 @@ class SettingsFragment : Fragment() {
             binding.checkUpdateEnabled.isEnabled = appCenterEnabled
             binding.checkUpdateEnabled.text = EnabledType.from(checkUpdateEnabled).name
             binding.checkUpdateEnabled.setSimpleItems(R.array.enabled)
+            binding.disableMemoryLimit.text = EnabledType.from(!Settings.disableMemoryLimit).name
+            binding.disableMemoryLimit.setSimpleItems(R.array.enabled)
         }
     }
 

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

@@ -87,6 +87,23 @@
 
             </TextView>
 
+            <com.google.android.material.textfield.TextInputLayout
+                android:id="@+id/disableMemoryLimit"
+                style="@style/Widget.Material3.TextInputLayout.FilledBox.ExposedDropdownMenu"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:hint="@string/memory_limit">
+
+                <AutoCompleteTextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="none"
+                    android:text="@string/enabled"
+                    app:simpleItems="@array/enabled" />
+
+            </com.google.android.material.textfield.TextInputLayout>
+
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"

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

@@ -79,5 +79,6 @@
     <string name="app_description">Android client for sing-box, the universal proxy platform.</string>
     <string name="documentation_button">Documentation</string>
     <string name="community_button">Community</string>
+    <string name="memory_limit">Memory Limit</string>
 
 </resources>