diff --git a/app/build.gradle b/app/build.gradle
index 363bfea..8dd5919 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,6 +22,10 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    applicationVariants.all { variant ->
+        variant.resValue "string", "coreName", "4.17.0"
+        variant.resValue "string", "versionName", variant.versionName
+    }
     productFlavors {
     }
 }
@@ -36,6 +40,7 @@ dependencies {
     implementation 'com.google.android.material:material:1.1.0-alpha02'
     implementation "androidx.paging:paging-runtime:2.1.0-rc01"
     implementation 'com.beust:klaxon:3.0.1'
+
     implementation(name: 'tun2socks', ext: 'aar')
 
     implementation 'androidx.room:room-runtime:2.1.0-alpha03'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6eb3a65..8e2a19f 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -16,7 +16,8 @@
         <activity
             android:name=".ui.MainActivity"
             android:label="@string/app_name"
-            android:theme="@style/AppTheme.NoActionBar">
+            android:theme="@style/AppTheme.NoActionBar"
+            android:windowSoftInputMode="stateHidden">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -59,6 +60,12 @@
             android:parentActivityName=".ui.perapp.PerAppActivity">
         </activity>
 
+        <activity
+            android:name=".ui.SubscribeConfigActivity"
+            android:label="Subscribe Config"
+            android:parentActivityName=".ui.MainActivity">
+        </activity>
+
         <service
             android:name=".service.SimpleVpnService"
             android:permission="android.permission.BIND_VPN_SERVICE" >
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/contants.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/contants.kt
new file mode 100644
index 0000000..134b709
--- /dev/null
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/contants.kt
@@ -0,0 +1,200 @@
+package `fun`.kitsunebi.kitsunebi4android.common
+
+class Constants {
+    companion object {
+        val PREFERENCE_CONFIG_KEY = "preference_config_key"
+        val SUBSCRIBE_CONFIG_URL_KEY = "subscribe_config_url_key"
+        val DEFAULT_CONFIG = """
+            {
+    "outbounds": [
+        {
+            "protocol": "vmess",
+            "settings": {
+                "vnext": [
+                    {
+                        "address": "1.2.3.4",
+                        "port": 10086,
+                        "users": [
+                            {
+                                "id": "0e8575fb-a71f-455b-877f-b74e19d3f495"
+                            }
+                        ]
+                    }
+                ]
+            },
+            "streamSettings": {
+                "network": "tcp"
+            },
+            "tag": "proxy"
+        },
+        {
+            "protocol": "freedom",
+            "settings": {
+                "domainStrategy": "UseIP"
+            },
+            "streamSettings": {},
+            "tag": "direct"
+        },
+        {
+            "protocol": "blackhole",
+            "settings": {},
+            "tag": "block"
+        },
+	{
+	    "protocol": "dns",
+	    "tag": "dns-out"
+	}
+    ],
+    "dns": {
+        "clientIp": "115.239.211.92",
+        "hosts": {
+            "localhost": "127.0.0.1"
+        },
+        "servers": [
+            "114.114.114.114",
+            {
+                "address": "8.8.8.8",
+                "domains": [
+                    "google",
+                    "android",
+                    "fbcdn",
+                    "facebook",
+                    "domain:fb.com",
+                    "instagram",
+                    "whatsapp",
+                    "akamai",
+                    "domain:line-scdn.net",
+                    "domain:line.me",
+                    "domain:naver.jp"
+                ],
+                "port": 53
+            }
+        ]
+    },
+    "log": {
+        "loglevel": "warning"
+    },
+    "policy": {
+        "levels": {
+            "0": {
+                "bufferSize": 4096,
+                "connIdle": 30,
+                "downlinkOnly": 0,
+                "handshake": 4,
+                "uplinkOnly": 0
+            }
+        }
+    },
+    "routing": {
+        "domainStrategy": "IPIfNonMatch",
+        "rules": [
+            {
+				"inboundTag": ["tun2socks"],
+                "network": "udp",
+                "port": 53,
+                "outboundTag": "dns-out",
+                "type": "field"
+            },
+            {
+                "domain": [
+                    "domain:setup.icloud.com"
+                ],
+                "outboundTag": "proxy",
+                "type": "field"
+            },
+            {
+                "ip": [
+                    "8.8.8.8/32",
+                    "8.8.4.4/32",
+                    "1.1.1.1/32",
+                    "1.0.0.1/32",
+                    "9.9.9.9/32",
+                    "149.112.112.112/32",
+                    "208.67.222.222/32",
+                    "208.67.220.220/32"
+                ],
+                "outboundTag": "proxy",
+                "type": "field"
+            },
+            {
+                "ip": [
+                    "geoip:cn",
+                    "geoip:private"
+                ],
+                "outboundTag": "direct",
+                "type": "field"
+            },
+            {
+                "outboundTag": "direct",
+                "port": "123",
+                "type": "field"
+            },
+            {
+                "domain": [
+                    "domain:pstatp.com",
+                    "domain:snssdk.com",
+                    "domain:toutiao.com",
+                    "domain:ixigua.com",
+                    "domain:apple.com",
+                    "domain:crashlytics.com",
+                    "domain:icloud.com",
+                    "cctv",
+                    "umeng",
+                    "domain:weico.cc",
+                    "domain:jd.com",
+                    "domain:360buy.com",
+                    "domain:360buyimg.com",
+                    "domain:douyu.tv",
+                    "domain:douyu.com",
+                    "domain:douyucdn.cn",
+                    "geosite:cn"
+                ],
+                "outboundTag": "direct",
+                "type": "field"
+            },
+            {
+                "ip": [
+                    "149.154.167.0/24",
+                    "149.154.175.0/24",
+                    "91.108.56.0/24",
+                    "125.209.222.0/24"
+                ],
+                "outboundTag": "proxy",
+                "type": "field"
+            },
+            {
+                "domain": [
+                    "twitter",
+                    "domain:twimg.com",
+                    "domain:t.co",
+                    "google",
+                    "domain:ggpht.com",
+                    "domain:gstatic.com",
+                    "domain:youtube.com",
+                    "domain:ytimg.com",
+                    "pixiv",
+                    "domain:pximg.net",
+                    "tumblr",
+                    "instagram",
+                    "domain:line-scdn.net",
+                    "domain:line.me",
+                    "domain:naver.jp",
+                    "domain:facebook.com",
+                    "domain:fbcdn.net",
+                    "pinterest",
+                    "github",
+                    "dropbox",
+                    "netflix",
+                    "domain:medium.com",
+                    "domain:fivecdm.com"
+                ],
+                "outboundTag": "proxy",
+                "type": "field"
+            }
+        ],
+        "strategy": "rules"
+    }
+}
+        """.trimIndent()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/utils.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/utils.kt
index 6748e75..aae9f7d 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/utils.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/common/utils.kt
@@ -1,5 +1,8 @@
 package `fun`.kitsunebi.kitsunebi4android.common
 
+import android.app.AlertDialog
+import android.content.Context
+
 open class SingletonHolder<out T, in A>(creator: (A) -> T) {
     private var creator: ((A) -> T)? = creator
     @Volatile private var instance: T? = null
@@ -30,4 +33,11 @@ public fun humanReadableByteCount(bytes: Long, si: Boolean): String {
     val exp = (Math.log(bytes.toDouble()) / Math.log(unit.toDouble())).toInt()
     val pre = (if (si) "kMGTPE" else "KMGTPE")[exp - 1] + if (si) "" else "i"
     return String.format("%.1f %sB", bytes / Math.pow(unit.toDouble(), exp.toDouble()), pre)
+}
+
+public fun showAlert(context: Context, msg: String) {
+    val dialog = AlertDialog.Builder(context).setTitle("Message").setMessage(msg)
+            .setPositiveButton("Ok", { dialog, i ->
+            })
+    dialog.show()
 }
\ No newline at end of file
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/service/SimpleVpnService.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/service/SimpleVpnService.kt
index 136f4e2..c673dc1 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/service/SimpleVpnService.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/service/SimpleVpnService.kt
@@ -1,6 +1,7 @@
 package `fun`.kitsunebi.kitsunebi4android.service
 
 import `fun`.kitsunebi.kitsunebi4android.R
+import `fun`.kitsunebi.kitsunebi4android.common.Constants
 import `fun`.kitsunebi.kitsunebi4android.storage.PROXY_LOG_DB_NAME
 import `fun`.kitsunebi.kitsunebi4android.storage.Preferences
 import `fun`.kitsunebi.kitsunebi4android.storage.ProxyLog
@@ -160,14 +161,19 @@ open class SimpleVpnService : VpnService() {
     }
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
-        configString = Preferences.getString(applicationContext, getString(R.string.preference_config_key), getString(R.string.default_config))
+        configString = Preferences.getString(applicationContext, Constants.PREFERENCE_CONFIG_KEY, Constants.DEFAULT_CONFIG)
 
         bgThread = thread(start = true) {
-            val config = Klaxon().parse<Config>(configString)
+            val config = try { Klaxon().parse<Config>(configString) } catch (e: Exception) {
+                sendBroadcast(android.content.Intent("vpn_start_err_config"))
+                stopVPN()
+                return@thread
+            }
             if (config != null) {
                 if (config.dns == null || config.dns.servers == null || config.dns.servers.size == 0) {
                     println("must configure dns servers since v2ray will use localhost if there isn't any dns servers")
                     sendBroadcast(Intent("vpn_start_err_dns"))
+                    stopVPN()
                     return@thread
                 }
 
@@ -176,12 +182,14 @@ open class SimpleVpnService : VpnService() {
                     if (dnsServer != null && dnsServer == "localhost") {
                         println("using local dns resolver is not allowed since it will cause infinite loop")
                         sendBroadcast(Intent("vpn_start_err_dns"))
+                        stopVPN()
                         return@thread
                     }
                 }
             } else {
                 println("parsing v2ray config failed")
                 sendBroadcast(Intent("vpn_start_err"))
+                stopVPN()
                 return@thread
             }
 
@@ -191,7 +199,6 @@ open class SimpleVpnService : VpnService() {
                     .setMtu(1500)
                     .addAddress("10.233.233.233", 30)
                     .addDnsServer(localDns)
-                    .addSearchDomain("local")
                     .addRoute("0.0.0.0", 0)
 
             val isEnablePerAppVpn = Preferences.getBool(applicationContext, getString(R.string.is_enable_per_app_vpn), null)
@@ -225,6 +232,7 @@ open class SimpleVpnService : VpnService() {
             if ((pfd == null) || !Tun2socks.setNonblock(pfd!!.fd.toLong(), false)) {
                 println("failed to put tunFd in blocking mode")
                 sendBroadcast(Intent("vpn_start_err"))
+                stopVPN()
                 return@thread
             }
 
@@ -244,23 +252,49 @@ open class SimpleVpnService : VpnService() {
             }
 
             val files = filesDir.list()
-            if (!files.contains("geoip.dat") || !files.contains("geosite.dat")) {
-                val geoipBytes = resources.openRawResource(R.raw.geoip).readBytes()
-                val fos = openFileOutput("geoip.dat", Context.MODE_PRIVATE)
-                fos.write(geoipBytes)
-                fos.close()
-
-                val geositeBytes = resources.openRawResource(R.raw.geosite).readBytes()
-                val fos2 = openFileOutput("geosite.dat", Context.MODE_PRIVATE)
-                fos2.write(geositeBytes)
-                fos2.close()
-            }
+            // FIXME  copy only when update
+            val geoipBytes = resources.openRawResource(R.raw.geoip).readBytes()
+            val fos = openFileOutput("geoip.dat", Context.MODE_PRIVATE)
+            fos.write(geoipBytes)
+            fos.close()
+
+            val geositeBytes = resources.openRawResource(R.raw.geosite).readBytes()
+            val fos2 = openFileOutput("geosite.dat", Context.MODE_PRIVATE)
+            fos2.write(geositeBytes)
+            fos2.close()
+
+//            if (!files.contains("geoip.dat") || !files.contains("geosite.dat")) {
+//                val geoipBytes = resources.openRawResource(R.raw.geoip).readBytes()
+//                val fos = openFileOutput("geoip.dat", Context.MODE_PRIVATE)
+//                fos.write(geoipBytes)
+//                fos.close()
+//
+//                val geositeBytes = resources.openRawResource(R.raw.geosite).readBytes()
+//                val fos2 = openFileOutput("geosite.dat", Context.MODE_PRIVATE)
+//                fos2.write(geositeBytes)
+//                fos2.close()
+//            }
 
             ProxyLogDatabase.getInstance(applicationContext).proxyLogDao().getAllCount()
-            val dbPath = getDatabasePath(PROXY_LOG_DB_NAME).absolutePath
+
+            var sniffing = Preferences.getString(applicationContext, getString(R.string.sniffing), "http,tls")
+            // Just ensure no whitespaces in the the string.
+            val sniffingList = sniffing.split(",")
+            var sniffings = ArrayList<String>()
+            for (s in sniffingList) {
+                sniffings.add(s.trim())
+            }
+            sniffing = sniffings.joinToString(",")
+
+            val inboundTag = Preferences.getString(applicationContext, getString(R.string.inbound_tag), "tun2socks")
 
             Tun2socks.setLocalDNS("$localDns:53")
-            Tun2socks.startV2Ray(flow, service, dbService, configString.toByteArray(), filesDir.absolutePath, dbPath)
+            val ret = Tun2socks.startV2Ray(flow, service, dbService, configString.toByteArray(), inboundTag, sniffing, filesDir.absolutePath)
+            if (ret.toInt() != 0) {
+                sendBroadcast(Intent("vpn_start_err_config"))
+                stopVPN()
+                return@thread
+            }
 
             sendBroadcast(Intent("vpn_started"))
             Preferences.putBool(applicationContext, getString(R.string.vpn_is_running), true)
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/storage/ProxyLog.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/storage/ProxyLog.kt
index 3329ab8..27212d5 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/storage/ProxyLog.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/storage/ProxyLog.kt
@@ -31,7 +31,7 @@ interface ProxyLogDao {
     @Query("SELECT * FROM proxy_log ORDER BY end_time DESC")
     fun getAllPaged(): DataSource.Factory<Int, ProxyLog>
 
-    @Query("SELECT * FROM proxy_log WHERE record_type != 1 ORDER BY end_time DESC")
+    @Query("SELECT * FROM proxy_log WHERE record_type != 1 AND target NOT LIKE 'udp:%:53' ORDER BY end_time DESC")
     fun getAllNonDnsPaged(): DataSource.Factory<Int, ProxyLog>
 
     @Insert
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/LogcatActivity.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/LogcatActivity.kt
index b63c7c4..e47be7a 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/LogcatActivity.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/LogcatActivity.kt
@@ -10,6 +10,7 @@ import android.view.Menu
 import android.view.MenuItem
 import android.widget.TextView
 import androidx.appcompat.app.AppCompatActivity
+import kotlinx.android.synthetic.main.activity_logcat.*
 import java.io.BufferedReader
 import java.io.IOException
 import java.io.InputStreamReader
@@ -29,7 +30,7 @@ class LogcatActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_logcat)
         logcatTextView = findViewById<TextView>(R.id.logcat_text)
-        logcatTextView.movementMethod = ScrollingMovementMethod()
+        logcatScroll.isSmoothScrollingEnabled = true
 
         bgThread = object : Thread() {
             override fun run() {
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/MainActivity.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/MainActivity.kt
index 3ff8e64..d7cd5f2 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/MainActivity.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/MainActivity.kt
@@ -1,13 +1,13 @@
 package `fun`.kitsunebi.kitsunebi4android.ui
 
 import `fun`.kitsunebi.kitsunebi4android.R
+import `fun`.kitsunebi.kitsunebi4android.common.Constants
+import `fun`.kitsunebi.kitsunebi4android.common.showAlert
 import `fun`.kitsunebi.kitsunebi4android.service.SimpleVpnService
 import `fun`.kitsunebi.kitsunebi4android.storage.Preferences
-import `fun`.kitsunebi.kitsunebi4android.ui.perapp.PerAppActivity
 import `fun`.kitsunebi.kitsunebi4android.ui.proxylog.ProxyLogActivity
 import `fun`.kitsunebi.kitsunebi4android.ui.settings.SettingsActivity
 import android.app.Activity
-import android.app.AlertDialog
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
@@ -23,6 +23,11 @@ import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.content_main.*
 import org.json.JSONException
 import org.json.JSONObject
+import android.view.MotionEvent
+import android.view.View.OnTouchListener
+import android.view.View
+
+
 
 
 class MainActivity : AppCompatActivity() {
@@ -30,11 +35,13 @@ class MainActivity : AppCompatActivity() {
     var running = false
     private var starting = false
     private var stopping = false
+    private lateinit var configString: String
+
 //    val mNotificationId = 1
     //    var mNotificationManager: NotificationManager? = null
 
     val broadcastReceiver = object : BroadcastReceiver() {
-        override fun onReceive(contxt: Context?, intent: Intent?) {
+        override fun onReceive(context: Context?, intent: Intent?) {
             when (intent?.action) {
                 "vpn_stopped" -> {
                     running = false
@@ -52,13 +59,25 @@ class MainActivity : AppCompatActivity() {
                     running = false
                     starting = false
                     fab.setImageResource(android.R.drawable.ic_media_play)
-                    showAlert("Start VPN service failed")
+                    context?.let {
+                        showAlert(it, "Start VPN service failed")
+                    }
                 }
                 "vpn_start_err_dns" -> {
                     running = false
                     starting = false
                     fab.setImageResource(android.R.drawable.ic_media_play)
-                    showAlert("Start VPN service failed: Not configuring DNS right, must has at least 1 dns server and mustn't include \"localhost\"")
+                    context?.let {
+                        showAlert(it, "Start VPN service failed: Not configuring DNS right, must has at least 1 dns server and mustn't include \"localhost\"")
+                    }
+                }
+                "vpn_start_err_config" -> {
+                    running = false
+                    starting = false
+                    fab.setImageResource(android.R.drawable.ic_media_play)
+                    context?.let {
+                        showAlert(it, "Start VPN service failed: Invalid V2Ray config.")
+                    }
                 }
                 "pong" -> {
                     fab.setImageResource(android.R.drawable.ic_media_pause)
@@ -69,6 +88,15 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
+    private fun updateUI() {
+        configString = Preferences.getString(applicationContext, Constants.PREFERENCE_CONFIG_KEY, Constants.DEFAULT_CONFIG)
+        configString?.let {
+            formatJsonString(it).let {
+                configView.setText(it, TextView.BufferType.EDITABLE)
+            }
+        }
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
@@ -78,25 +106,26 @@ class MainActivity : AppCompatActivity() {
 
         registerReceiver(broadcastReceiver, IntentFilter("vpn_stopped"))
         registerReceiver(broadcastReceiver, IntentFilter("vpn_started"))
+
+        // TODO make a list
         registerReceiver(broadcastReceiver, IntentFilter("vpn_start_err"))
         registerReceiver(broadcastReceiver, IntentFilter("vpn_start_err_dns"))
+        registerReceiver(broadcastReceiver, IntentFilter("vpn_start_err_config"))
+
         registerReceiver(broadcastReceiver, IntentFilter("pong"))
 
         sendBroadcast(Intent("ping"))
 
-        var configString = Preferences.getString(applicationContext, getString(R.string.preference_config_key), getString(R.string.default_config))
-        configString?.let {
-            formatJsonString(it).let {
-                configView.setText(it, TextView.BufferType.EDITABLE)
-            }
-        }
+        updateUI()
+
+        configScroll.isSmoothScrollingEnabled = true
 
         fab.setOnClickListener { view ->
             if (!running && !starting) {
                 starting = true
                 fab.setImageResource(android.R.drawable.ic_media_ff)
                 configString = configView.text.toString()
-                Preferences.putString(applicationContext, getString(R.string.preference_config_key), configString)
+                Preferences.putString(applicationContext, Constants.Companion.PREFERENCE_CONFIG_KEY, configString)
                 val intent = VpnService.prepare(this)
                 if (intent != null) {
                     startActivityForResult(intent, 1)
@@ -119,6 +148,7 @@ class MainActivity : AppCompatActivity() {
 
     override fun onResume() {
         super.onResume()
+        updateUI()
         sendBroadcast(Intent("ping"))
     }
 
@@ -133,6 +163,11 @@ class MainActivity : AppCompatActivity() {
         // automatically handle clicks on the Home/Up button, so long
         // as you specify a parent activity in AndroidManifest.xml.
         return when (item.itemId) {
+            R.id.subscribe_config_btn -> {
+                val intent = Intent(this, SubscribeConfigActivity::class.java)
+                startActivity(intent)
+                return true
+            }
             R.id.format_btn -> {
                 val prettyText = formatJsonString(configView.text.toString())
                 prettyText?.let {
@@ -144,10 +179,10 @@ class MainActivity : AppCompatActivity() {
                 val config = configView.text.toString()
                 val prettyText = formatJsonString(config)
                 if (prettyText == null) {
-                    showAlert("Invalid JSON")
+                    showAlert(this, "Invalid JSON")
                     return true
                 }
-                Preferences.putString(applicationContext, getString(R.string.preference_config_key), prettyText)
+                Preferences.putString(applicationContext, Constants.PREFERENCE_CONFIG_KEY, prettyText)
                 return true
             }
             R.id.log_btn -> {
@@ -183,18 +218,11 @@ class MainActivity : AppCompatActivity() {
         return try {
             JSONObject(json).toString(2)
         } catch (e: JSONException) {
-            showAlert("Invalid JSON")
+            showAlert(this, "Invalid JSON")
             return null
         }
     }
 
-    fun showAlert(msg: String) {
-        val dialog = AlertDialog.Builder(this).setTitle("Message").setMessage(msg)
-                .setPositiveButton("Ok", { dialog, i ->
-                })
-        dialog.show()
-    }
-
 //    private fun startNotification() {
 //        // Build Notification , setOngoing keeps the notification always in status bar
 //        val mBuilder = NotificationCompat.Builder(this, getString(R.string.notification_channel_id))
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/SubscribeConfigActivity.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/SubscribeConfigActivity.kt
new file mode 100644
index 0000000..3dd903e
--- /dev/null
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/SubscribeConfigActivity.kt
@@ -0,0 +1,67 @@
+package `fun`.kitsunebi.kitsunebi4android.ui
+
+import `fun`.kitsunebi.kitsunebi4android.R
+import `fun`.kitsunebi.kitsunebi4android.common.Constants
+import `fun`.kitsunebi.kitsunebi4android.common.showAlert
+import `fun`.kitsunebi.kitsunebi4android.storage.Preferences
+import android.content.Context
+import android.os.AsyncTask
+import android.os.Bundle
+import android.widget.Button
+import android.widget.EditText
+import androidx.appcompat.app.AppCompatActivity
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.net.URL
+import javax.net.ssl.HttpsURLConnection
+
+class SubscribeConfigActivity : AppCompatActivity() {
+
+    private lateinit var subUrl: EditText
+    private lateinit var subBtn: Button
+
+    class RetrieveConfigurationTask internal constructor(context: Context): AsyncTask<String, Void, String?>() {
+        private var ctx: Context = context
+
+        override fun doInBackground(vararg p0: String?): String? {
+            if (p0[0] != null) {
+                val obj = URL(p0[0])
+                with(obj.openConnection() as HttpsURLConnection) {
+                    BufferedReader(InputStreamReader(inputStream)).use {
+                        val response = StringBuffer()
+                        var inputLine = it.readLine()
+                        while (inputLine != null) {
+                            response.append(inputLine)
+                            inputLine = it.readLine()
+                        }
+                        it.close()
+                        return response.toString()
+                    }
+                }
+            }
+            return null
+        }
+
+        override fun onPostExecute(result: String?) {
+            if (result != null) {
+                Preferences.putString(ctx, Constants.PREFERENCE_CONFIG_KEY, result)
+                showAlert(ctx, "Configuration updated!")
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_subscribe_config)
+        subUrl = findViewById<EditText>(R.id.sub_url)
+        subBtn = findViewById<Button>(R.id.sub_btn)
+
+        subUrl.setText(Preferences.getString(this, Constants.SUBSCRIBE_CONFIG_URL_KEY, ""))
+
+        subBtn.setOnClickListener { view ->
+            val url = subUrl.text.toString()
+            Preferences.putString(this, Constants.SUBSCRIBE_CONFIG_URL_KEY, url)
+            RetrieveConfigurationTask(this).execute(url)
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/proxylog/PorxyLogAdapter.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/proxylog/PorxyLogAdapter.kt
index fe1b10e..7df662c 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/proxylog/PorxyLogAdapter.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/ui/proxylog/PorxyLogAdapter.kt
@@ -48,6 +48,12 @@ class ProxyLogAdapter(val context: Context) : PagedListAdapter<ProxyLog, ProxyLo
                             val up = humanReadableByteCount(proxyLog.uploadBytes!!.toLong(), true)
                             val down = humanReadableByteCount(proxyLog.downloadBytes!!.toLong(), true)
                             row2_2.text = "${up}↑, ${down}↓"
+                            if (proxyLog.downloadBytes!!.toInt() == 0) {
+                                row2_2.setTextColor(ContextCompat.getColor(context, R.color.colorAccent))
+                            } else {
+                                row2_2.setTextColor(ContextCompat.getColor(context, R.color.colorDefaultText))
+                            }
+
                         }
 
                         val sdf = java.text.SimpleDateFormat("HH:mm:ss")
diff --git a/app/src/main/res/layout/activity_logcat.xml b/app/src/main/res/layout/activity_logcat.xml
index aff6ff8..fde1c25 100644
--- a/app/src/main/res/layout/activity_logcat.xml
+++ b/app/src/main/res/layout/activity_logcat.xml
@@ -4,11 +4,23 @@
     android:layout_height="match_parent"
     android:isScrollContainer="true">
 
-    <TextView
-        android:id="@+id/logcat_text"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:gravity="bottom"
-        android:scrollbars="vertical"
-        android:text="TextView" />
+    <ScrollView
+        android:id="@+id/logcatScroll"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <TextView
+                android:id="@+id/logcat_text"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="bottom"
+                android:scrollbars="vertical"
+                android:text="TextView" />
+        </LinearLayout>
+    </ScrollView>
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_subscribe_config.xml b/app/src/main/res/layout/activity_subscribe_config.xml
new file mode 100644
index 0000000..0940270
--- /dev/null
+++ b/app/src/main/res/layout/activity_subscribe_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <EditText
+        android:id="@+id/sub_url"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:inputType="textMultiLine" />
+
+    <Button
+        android:id="@+id/sub_btn"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Update" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Updating the current configuration from the URL. Only supports HTTPS URL, using a HTTP URL will just crash the app..." />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/content_main.xml b/app/src/main/res/layout/content_main.xml
index cb2c7d2..69169b2 100644
--- a/app/src/main/res/layout/content_main.xml
+++ b/app/src/main/res/layout/content_main.xml
@@ -8,16 +8,28 @@
     tools:context="fun.kitsunebi.kitsunebi4android.ui.MainActivity"
     tools:showIn="@layout/activity_main">
 
-    <EditText
-        android:id="@+id/configView"
+    <ScrollView
+        android:id="@+id/configScroll"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:focusableInTouchMode="true"
-        android:text="@string/default_config"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.0" />
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <EditText
+                android:id="@+id/configView"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:focusableInTouchMode="true"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintHorizontal_bias="0.0"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintVertical_bias="0.0" />
+        </LinearLayout>
+    </ScrollView>
+
 </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
index e2868f3..8486014 100644
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@@ -2,6 +2,9 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     tools:context="fun.kitsunebi.kitsunebi4android.ui.MainActivity">
+    <item
+        android:id="@+id/subscribe_config_btn"
+        android:title="Subscribe Config" />
     <item
         android:id="@+id/format_btn"
         android:title="Format JSON" />
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index ecd7986..b33185c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -2,7 +2,6 @@
     <string name="app_name">Kitsunebi</string>
     <string name="action_settings">Settings</string>
     <string name="config_preference">config_preference</string>
-    <string name="preference_config_key">preference_config_key</string>
     <string name="notification_channel_id">notification_channel_id</string>
     <string name="vpn_is_running">vpn_is_running</string>
     <string name="is_enable_proxy_logging">is_enable_proxy_logging</string>
@@ -14,198 +13,6 @@
     <string name="per_app_disallowed_app_list">per_app_disallowed_app_list</string>
     <string name="allowed_list">Allowed list</string>
     <string name="disallowed_list">Disallowed list</string>
-    <string name="default_config">
-{\n
-    \"log\": {\n
-        \"loglevel\": \"warning\"\n
-    },\n
-    \"outbounds\": [\n
-        {\n
-            \"protocol\": \"vmess\",\n
-            \"settings\": {\n
-                \"vnext\": [\n
-                    {\n
-                        \"address\": \"yourserver.com\",\n
-                        \"port\": 10086,\n
-                        \"users\": [\n
-                            {\n
-                                \"alterId\": 10,\n
-                                \"security\": \"chacha20-poly1305\",\n
-                                \"id\": \"xxxx-xxx-xx-xx-x-xx\"\n
-                            }\n
-                        ]\n
-                    }\n
-                ]\n
-            },\n
-            \"streamSettings\": {\n
-                \"network\": \"tcp\"\n
-            },\n
-            \"tag\": \"proxy\"\n
-        },\n
-        {\n
-            \"protocol\": \"freedom\",\n
-            \"settings\": {\n
-                \"userLevel\": 2018,\n
-                \"domainStrategy\": \"UseIP\"\n
-            },\n
-            \"streamSettings\": {},\n
-            \"tag\": \"direct\"\n
-        },\n
-        {\n
-            \"tag\": \"block\",\n
-            \"protocol\": \"blackhole\",\n
-            \"settings\": {}\n
-        }\n
-    ],\n
-    \"policy\": {\n
-        \"levels\": {\n
-            \"0\": {\n
-                \"uplinkOnly\": 0,\n
-                \"downlinkOnly\": 0,\n
-                \"connIdle\": 5,\n
-                \"handshake\": 4,\n
-            	\"bufferSize\": 4096\n
-            },\n
-            \"2018\": {\n
-                \"uplinkOnly\": 0,\n
-                \"downlinkOnly\": 0,\n
-                \"connIdle\": 5,\n
-                \"handshake\": 4,\n
-            	\"bufferSize\": 4096\n
-            }\n
-        }\n
-    },\n
-    \"dns\": {\n
-        \"hosts\": {\n
-            \"localhost\": \"127.0.0.1\"\n
-        },\n
-        \"servers\": [\n
-            \"223.5.5.5\",\n
-            \"114.114.114.114\",\n
-            {\n
-                \"address\": \"8.8.8.8\",\n
-                \"port\": 53,\n
-                \"domains\": [\n
-                    \"google\",\n
-                    \"android\",\n
-                    \"fbcdn\",\n
-                    \"facebook\",\n
-                    \"domain:fb.com\",\n
-                    \"instagram\",\n
-                    \"whatsapp\",\n
-                    \"akamai\",\n
-                    \"domain:line-scdn.net\",\n
-                    \"domain:line.me\",\n
-                    \"domain:naver.jp\"\n
-                ]\n
-            },\n
-            \"8.8.4.4\"\n
-        ],\n
-        \"clientIp\": \"115.239.211.92\"\n
-    },\n
-    \"inbounds\": [],\n
-    \"routing\": {\n
-        \"rules\": [\n
-            {\n
-                \"domain\": [\n
-                    \"domain:setup.icloud.com\"\n
-                ],\n
-                \"outboundTag\": \"proxy\",\n
-                \"type\": \"field\"\n
-            },\n
-            {\n
-                \"ip\": [\n
-                    \"8.8.8.8/32\",\n
-                    \"8.8.4.4/32\",\n
-                    \"1.1.1.1/32\",\n
-                    \"1.0.0.1/32\",\n
-                    \"9.9.9.9/32\",\n
-                    \"149.112.112.112/32\",\n
-                    \"208.67.222.222/32\",\n
-                    \"208.67.220.220/32\"\n
-                ],\n
-                \"outboundTag\": \"proxy\",\n
-                \"type\": \"field\"\n
-            },\n
-            {\n
-                \"ip\": [\n
-                    \"geoip:cn\",\n
-                    \"geoip:private\"\n
-                ],\n
-                \"outboundTag\": \"direct\",\n
-                \"type\": \"field\"\n
-            },\n
-            {\n
-                \"type\": \"field\",\n
-                \"outboundTag\": \"direct\",\n
-                \"port\": \"123\"\n
-            },\n
-            {\n
-                \"domain\": [\n
-                    \"domain:pstatp.com\",\n
-                    \"domain:snssdk.com\",\n
-                    \"domain:toutiao.com\",\n
-                    \"domain:ixigua.com\",\n
-                    \"domain:apple.com\",\n
-                    \"domain:crashlytics.com\",\n
-                    \"domain:icloud.com\",\n
-                    \"cctv\",\n
-                    \"umeng\",\n
-                    \"domain:weico.cc\",\n
-                    \"domain:jd.com\",\n
-                    \"domain:360buy.com\",\n
-                    \"domain:360buyimg.com\",\n
-                    \"domain:douyu.tv\",\n
-                    \"domain:douyu.com\",\n
-                    \"domain:douyucdn.cn\",\n
-                    \"geosite:cn\"\n
-                ],\n
-                \"outboundTag\": \"direct\",\n
-                \"type\": \"field\"\n
-            },\n
-            {\n
-                \"ip\": [\n
-                    \"149.154.167.0/24\",\n
-                    \"149.154.175.0/24\",\n
-                    \"91.108.56.0/24\",\n
-                    \"125.209.222.0/24\"\n
-                ],\n
-                \"outboundTag\": \"proxy\",\n
-                \"type\": \"field\"\n
-            },\n
-            {\n
-                \"domain\": [\n
-                    \"twitter\",\n
-                    \"domain:twimg.com\",\n
-                    \"domain:t.co\",\n
-                    \"google\",\n
-                    \"domain:ggpht.com\",\n
-                    \"domain:gstatic.com\",\n
-                    \"domain:youtube.com\",\n
-                    \"domain:ytimg.com\",\n
-                    \"pixiv\",\n
-                    \"domain:pximg.net\",\n
-                    \"tumblr\",\n
-                    \"instagram\",\n
-                    \"domain:line-scdn.net\",\n
-                    \"domain:line.me\",\n
-                    \"domain:naver.jp\",\n
-                    \"domain:facebook.com\",\n
-                    \"domain:fbcdn.net\",\n
-                    \"pinterest\",\n
-                    \"github\",\n
-                    \"dropbox\",\n
-                    \"netflix\",\n
-                    \"domain:medium.com\",\n
-                    \"domain:fivecdm.com\"\n
-                ],\n
-                \"outboundTag\": \"proxy\",\n
-                \"type\": \"field\"\n
-            }\n
-        ],\n
-        \"domainStrategy\": \"IPIfNonMatch\",\n
-        \"strategy\": \"rules\"\n
-    }\n
-}\n
-    </string>
+    <string name="sniffing">sniffing</string>
+    <string name="inbound_tag">inbound_tag</string>
 </resources>
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index 52b7769..e8947f7 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -31,4 +31,30 @@
         android:summary="The DNS server that will be used by the freedom outbound (in case you are using AsIs as the freedom outbound's domain strategy) or for resolving domain names of outbound servers, and these DNS requests won't be logged to proxy log. Moreover, non A/AAAA DNS queries from the OS will also be sent to this DNS server, they will be treated as normal UDP traffic."
         android:title="Local DNS"
         app:iconSpaceReserved="false"></EditTextPreference>
+
+    <EditTextPreference
+        android:defaultValue="http,tls"
+        android:key="@string/sniffing"
+        android:summary="Sniffing settings for the tun2socks inbound."
+        android:title="Sniffing"
+        app:iconSpaceReserved="false"></EditTextPreference>
+
+    <EditTextPreference
+        android:defaultValue="tun2socks"
+        android:key="@string/inbound_tag"
+        android:summary="Inbound tag for distinguishing traffic coming from tun2socks in routing procedure."
+        android:title="Inbound Tag"
+        app:iconSpaceReserved="false"></EditTextPreference>
+
+    <Preference
+        app:key="core_version"
+        app:title="Core Version"
+        app:summary="@string/coreName"
+        app:iconSpaceReserved="false"/>
+
+    <Preference
+        app:key="app_version"
+        app:title="Version"
+        app:summary="@string/versionName"
+        app:iconSpaceReserved="false"/>
 </PreferenceScreen>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index ff630b8..0d1d608 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9942f41..64c3979 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Nov 10 11:17:28 CST 2018
+#Tue Feb 26 02:09:24 CST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip