Add ignore battery optimizations card

app/src/main/java/io/nekohasekai/sfa/Application.kt

@@ -4,6 +4,7 @@ import android.app.Application
 import android.app.NotificationManager
 import android.content.Context
 import android.net.ConnectivityManager
+import android.os.PowerManager
 import androidx.core.content.getSystemService
 import go.Seq
 import io.nekohasekai.sfa.bg.UpdateProfileWork
@@ -35,6 +36,7 @@ class Application : Application() {
         val notification by lazy { application.getSystemService<NotificationManager>()!! }
         val connectivity by lazy { application.getSystemService<ConnectivityManager>()!! }
         val packageManager by lazy { application.packageManager }
+        val powerManager by lazy { application.getSystemService<PowerManager>()!! }
     }
 
 }

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

@@ -268,7 +268,8 @@ class DashboardFragment : Fragment(), CommandClientHandler {
                 return
             }
             runCatching {
-                Libbox.newStandaloneCommandClient(mainActivity.filesDir.absolutePath).serviceReload()
+                Libbox.newStandaloneCommandClient(mainActivity.filesDir.absolutePath)
+                    .serviceReload()
             }.onFailure {
                 withContext(Dispatchers.Main) {
                     mainActivity.errorDialogBuilder(it).show()

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

@@ -1,14 +1,19 @@
 package io.nekohasekai.sfa.ui.main
 
+import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.view.isGone
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.lifecycleScope
 import com.microsoft.appcenter.AppCenter
 import com.microsoft.appcenter.distribute.Distribute
 import io.nekohasekai.libbox.Libbox
+import io.nekohasekai.sfa.Application
 import io.nekohasekai.sfa.R
 import io.nekohasekai.sfa.constant.EnabledType
 import io.nekohasekai.sfa.database.Settings
@@ -35,6 +40,14 @@ class SettingsFragment : Fragment() {
         return binding.root
     }
 
+    private val requestIgnoreBatteryOptimizations = registerForActivityResult(
+        ActivityResultContracts.StartActivityForResult()
+    ) { _ ->
+        lifecycleScope.launch(Dispatchers.IO) {
+            reloadSettings()
+        }
+    }
+
     private fun onCreate() {
         val activity = activity as MainActivity? ?: return
         binding.versionText.text = Libbox.version()
@@ -80,6 +93,17 @@ class SettingsFragment : Fragment() {
                 Settings.disableMemoryLimit = !newValue
             }
         }
+        binding.dontKillMyAppButton.setOnClickListener {
+            it.context.launchCustomTab("https://dontkillmyapp.com/")
+        }
+        binding.requestIgnoreBatteryOptimizationsButton.setOnClickListener {
+            requestIgnoreBatteryOptimizations.launch(
+                Intent(
+                    android.provider.Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS,
+                    Uri.parse("package:${Application.application.packageName}")
+                )
+            )
+        }
         binding.communityButton.setOnClickListener {
             it.context.launchCustomTab("https://community.sagernet.org/")
         }
@@ -96,6 +120,8 @@ class SettingsFragment : Fragment() {
         )
         val appCenterEnabled = Settings.analyticsAllowed == Settings.ANALYSIS_ALLOWED
         val checkUpdateEnabled = Settings.checkUpdateEnabled
+        val removeBackgroudPermissionPage =
+            Application.powerManager.isIgnoringBatteryOptimizations(Application.application.packageName)
         withContext(Dispatchers.Main) {
             binding.dataSizeText.text = dataSize
             binding.appCenterEnabled.text = EnabledType.from(appCenterEnabled).name
@@ -105,6 +131,7 @@ class SettingsFragment : Fragment() {
             binding.checkUpdateEnabled.setSimpleItems(R.array.enabled)
             binding.disableMemoryLimit.text = EnabledType.from(!Settings.disableMemoryLimit).name
             binding.disableMemoryLimit.setSimpleItems(R.array.enabled)
+            binding.backgroundPermissionCard.isGone = removeBackgroudPermissionPage
         }
     }