optimize restart

app/src/main/java/io/nekohasekai/sagernet/SagerNet.kt

@@ -202,7 +202,7 @@ class SagerNet : Application(),
 
         var underlyingNetwork: Network? = null
 
-        var appVersionNameForDisplay = lazy {
+        var appVersionNameForDisplay = {
             var n = BuildConfig.VERSION_NAME
             if (isPreview) {
                 n += " " + BuildConfig.PRE_VERSION_NAME
@@ -213,7 +213,7 @@ class SagerNet : Application(),
                 n += " DEBUG"
             }
             n
-        }
+        }()
     }
 
 }

app/src/main/java/io/nekohasekai/sagernet/bg/BaseService.kt

@@ -105,6 +105,10 @@ class BaseService {
         override fun getProfileName(): String = data?.proxy?.displayProfileName ?: "Idle"
 
         override fun registerCallback(cb: ISagerNetServiceCallback, id: Int) {
+            if (id == SagerConnection.CONNECTION_ID_RESTART_BG) {
+                Runtime.getRuntime().exit(0)
+                return
+            }
             if (!callbackIdMap.contains(cb)) {
                 callbacks.register(cb)
             }

app/src/main/java/io/nekohasekai/sagernet/bg/Executable.kt

@@ -3,24 +3,21 @@ package io.nekohasekai.sagernet.bg
 import android.system.ErrnoException
 import android.system.Os
 import android.system.OsConstants
-import android.text.TextUtils
 import io.nekohasekai.sagernet.ktx.Logs
 import java.io.File
 import java.io.IOException
+import androidx.core.text.isDigitsOnly
 
 object Executable {
     private val EXECUTABLES = setOf(
-        "libtrojan.so",
-        "libtrojan-go.so",
-        "libnaive.so",
-        "libtuic.so",
-        "libhysteria.so"
+        "libtrojan.so", "libtrojan-go.so", "libnaive.so", "libtuic.so", "libhysteria.so"
     )
 
     fun killAll(alsoKillBg: Boolean = false) {
-        for (process in File("/proc").listFiles { _, name -> TextUtils.isDigitsOnly(name) }
-            ?: return) {
-            val exe = File(try {
+        // kill bg may fail
+        for (process in File("/proc").listFiles { _, name -> name.isDigitsOnly() } ?: return) {
+            val exe = File(
+                try {
                 File(process, "cmdline").inputStream().bufferedReader().use {
                     it.readText()
                 }

app/src/main/java/io/nekohasekai/sagernet/bg/SagerConnection.kt

@@ -32,6 +32,9 @@ class SagerConnection(
         const val CONNECTION_ID_TILE = 1
         const val CONNECTION_ID_MAIN_ACTIVITY_FOREGROUND = 2
         const val CONNECTION_ID_MAIN_ACTIVITY_BACKGROUND = 3
+        const val CONNECTION_ID_RESTART_BG = 4
+
+        var restartingApp = false
     }
 
     interface Callback {
@@ -124,7 +127,7 @@ class SagerConnection(
         } catch (e: RemoteException) {
             e.printStackTrace()
         }
-        callback!!.onServiceConnected(service)
+        callback?.onServiceConnected(service)
     }
 
     override fun onServiceDisconnected(name: ComponentName?) {
@@ -137,7 +140,9 @@ class SagerConnection(
     override fun binderDied() {
         service = null
         callbackRegistered = false
-        callback?.also { runOnMainDispatcher { it.onBinderDied() } }
+        if (!restartingApp) {
+            callback?.also { runOnMainDispatcher { it.onBinderDied() } }
+        }
     }
 
     private fun unregisterCallback() {
@@ -149,7 +154,7 @@ class SagerConnection(
         callbackRegistered = false
     }
 
-    fun connect(context: Context, callback: Callback) {
+    fun connect(context: Context, callback: Callback?) {
         if (connectionActive) return
         connectionActive = true
         check(this.callback == null)

app/src/main/java/io/nekohasekai/sagernet/ktx/Utils.kt

@@ -20,6 +20,8 @@ import androidx.activity.result.ActivityResultLauncher
 import androidx.annotation.AttrRes
 import androidx.annotation.ColorRes
 import androidx.core.content.ContextCompat
+import androidx.core.view.isGone
+import androidx.core.view.isVisible
 import androidx.fragment.app.DialogFragment
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
@@ -30,10 +32,10 @@ import com.jakewharton.processphoenix.ProcessPhoenix
 import io.nekohasekai.sagernet.BuildConfig
 import io.nekohasekai.sagernet.R
 import io.nekohasekai.sagernet.SagerNet
-import io.nekohasekai.sagernet.bg.Executable
+import io.nekohasekai.sagernet.aidl.ISagerNetService
+import io.nekohasekai.sagernet.bg.BaseService
+import io.nekohasekai.sagernet.bg.SagerConnection
 import io.nekohasekai.sagernet.database.DataStore
-import io.nekohasekai.sagernet.database.SagerDatabase
-import io.nekohasekai.sagernet.database.preference.PublicDatabase
 import io.nekohasekai.sagernet.ui.MainActivity
 import io.nekohasekai.sagernet.ui.ThemedActivity
 import kotlinx.coroutines.Dispatchers
@@ -201,7 +203,7 @@ val shortAnimTime by lazy {
 fun View.crossFadeFrom(other: View) {
     clearAnimation()
     other.clearAnimation()
-    if (visibility == View.VISIBLE && other.visibility == View.GONE) return
+    if (isVisible && other.isGone) return
     alpha = 0F
     visibility = View.VISIBLE
     animate().alpha(1F).duration = shortAnimTime
@@ -256,10 +258,24 @@ fun triggerFullRestart(ctx: Context) {
     runOnDefaultDispatcher {
         SagerNet.stopService()
         delay(500)
-        Executable.killAll(true)
-        runOnMainDispatcher {
+        SagerConnection.restartingApp = true
+        val connection = SagerConnection(SagerConnection.CONNECTION_ID_RESTART_BG)
+        connection.connect(ctx, RestartCallback {
             ProcessPhoenix.triggerRebirth(ctx, Intent(ctx, MainActivity::class.java))
-        }
+        })
+    }
+}
+
+private class RestartCallback(val callback: () -> Unit) : SagerConnection.Callback {
+    override fun stateChanged(
+        state: BaseService.State,
+        profileName: String?,
+        msg: String?
+    ) {
+    }
+
+    override fun onServiceConnected(service: ISagerNetService) {
+        callback()
     }
 }
 

app/src/main/java/io/nekohasekai/sagernet/ui/AboutFragment.kt

@@ -80,7 +80,7 @@ class AboutFragment : ToolbarFragment(R.layout.layout_about) {
                             MaterialAboutActionItem.Builder()
                                 .icon(R.drawable.ic_baseline_update_24)
                                 .text(R.string.app_version)
-                                .subText(SagerNet.appVersionNameForDisplay.value)
+                                .subText(SagerNet.appVersionNameForDisplay)
                                 .setOnClickAction {
                                     requireContext().launchCustomTab(
                                         "https://github.com/MatsuriDayo/NekoBoxForAndroid/releases"
@@ -251,7 +251,7 @@ class AboutFragment : ToolbarFragment(R.layout.layout_about) {
                                 .setMessage(
                                     context.getString(
                                         R.string.update_dialog_message,
-                                        SagerNet.appVersionNameForDisplay.value,
+                                        SagerNet.appVersionNameForDisplay,
                                         releaseName
                                     )
                                 )

nb4a.properties

@@ -1,4 +1,4 @@
 PACKAGE_NAME=moe.nb4a
 VERSION_NAME=1.3.9
-PRE_VERSION_NAME=pre-1.4.0-20250904-2
+PRE_VERSION_NAME=pre-1.4.0-20250905-1
 VERSION_CODE=43