diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6b0959c..160e535 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -16,7 +16,9 @@
         tools:ignore="GoogleAppIndexingWarning">
         <activity
             android:name=".MainActivity"
-            android:label="@string/app_name">
+            android:label="@string/app_name"
+            android:screenOrientation="portrait"
+            android:launchMode="singleInstance">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -25,17 +27,25 @@
         <activity
             android:name=".ProfilesActivity"
             android:label="@string/clash_profiles"
-            android:exported="false" />
+            android:exported="false"
+            android:screenOrientation="portrait" />
         <activity
             android:name=".CreateProfileActivity"
             android:label="@string/clash_new_profile"
-            android:exported="false" />
+            android:exported="false"
+            android:screenOrientation="portrait"/>
         <activity
             android:name=".ImportFileActivity"
             android:label="@string/clash_import_from_file"
-            android:exported="false" />
+            android:exported="false"
+            android:screenOrientation="portrait"/>
         <activity
             android:name=".ClashStatusActivity"
-            android:exported="false" />
+            android:exported="false"
+            android:screenOrientation="portrait"/>
+        <activity android:name=".ProxyActivity"
+            android:label="@string/clash_profiles"
+            android:exported="false"
+            android:screenOrientation="portrait"/>
     </application>
 </manifest>
diff --git a/app/src/main/java/com/github/kr328/clash/ProxyActivity.kt b/app/src/main/java/com/github/kr328/clash/ProxyActivity.kt
new file mode 100644
index 0000000..692ac78
--- /dev/null
+++ b/app/src/main/java/com/github/kr328/clash/ProxyActivity.kt
@@ -0,0 +1,5 @@
+package com.github.kr328.clash
+
+class ProxyActivity : BaseActivity() {
+
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/adapter_proxy_group.xml b/app/src/main/res/layout/adapter_proxy_group.xml
new file mode 100644
index 0000000..aa1b0cb
--- /dev/null
+++ b/app/src/main/res/layout/adapter_proxy_group.xml
@@ -0,0 +1,12 @@
+<?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"
+    android:animateLayoutChanges="true">
+    <androidx.recyclerview.widget.RecyclerView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+    </androidx.recyclerview.widget.RecyclerView>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index eabcb4f..d1a86c7 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -6,11 +6,11 @@
     <string name="clash_status_started">Running</string>
     <string name="clash_status_forwarded_traffic">%s Forwarded</string>
 
-    <string name="clash_proxy_manage">Proxy</string>
+    <string name="clash_proxy_manage">Proxies</string>
     <string name="clash_proxy_manage_summary">%d Items</string>
 
-    <string name="clash_profiles">Profile</string>
-    <string name="clash_profiles_summary_selected">%s Active</string>
+    <string name="clash_profiles">Profiles</string>
+    <string name="clash_profiles_summary_selected">%s Activated</string>
     <string name="clash_profiles_summary_unselected">Unselected</string>
 
     <string name="clash_logs">Logs</string>
diff --git a/core/src/main/java/com/github/kr328/clash/core/Clash.kt b/core/src/main/java/com/github/kr328/clash/core/Clash.kt
index e0ef6e0..1382225 100644
--- a/core/src/main/java/com/github/kr328/clash/core/Clash.kt
+++ b/core/src/main/java/com/github/kr328/clash/core/Clash.kt
@@ -9,6 +9,7 @@ import com.github.kr328.clash.core.event.ProcessEvent
 import com.github.kr328.clash.core.event.ProxyChangedEvent
 import com.github.kr328.clash.core.event.TrafficEvent
 import com.github.kr328.clash.core.model.Proxy
+import com.github.kr328.clash.core.model.ProxyPacket
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonConfiguration
 import org.json.JSONObject
@@ -56,14 +57,14 @@ class Clash(
         }
     }
 
-    fun queryProxies(): Proxy.Packet {
+    fun queryProxies(): ProxyPacket {
         return runControl(COMMAND_QUERY_PROXIES) { _, input, _ ->
             val data = input.readString()
 
             Log.d(TAG, data)
 
             Json(JsonConfiguration.Stable.copy(strictMode = false))
-                .parse(Proxy.Packet.serializer(), data)
+                .parse(ProxyPacket.serializer(), data)
         }
     }
 
diff --git a/core/src/main/java/com/github/kr328/clash/core/event/ErrorEvent.kt b/core/src/main/java/com/github/kr328/clash/core/event/ErrorEvent.kt
index 877de56..5bfa236 100644
--- a/core/src/main/java/com/github/kr328/clash/core/event/ErrorEvent.kt
+++ b/core/src/main/java/com/github/kr328/clash/core/event/ErrorEvent.kt
@@ -8,7 +8,8 @@ import kotlinx.serialization.Serializable
 @Serializable
 data class ErrorEvent(val type: Type, val message: String) : Event, Parcelable {
     enum class Type {
-        START_FAILURE
+        START_FAILURE,
+        QUERY_PROXY_FAILURE
     }
 
     override fun writeToParcel(parcel: Parcel, flags: Int) {
diff --git a/core/src/main/java/com/github/kr328/clash/core/model/Proxy.kt b/core/src/main/java/com/github/kr328/clash/core/model/Proxy.kt
index 4022580..6e704a7 100644
--- a/core/src/main/java/com/github/kr328/clash/core/model/Proxy.kt
+++ b/core/src/main/java/com/github/kr328/clash/core/model/Proxy.kt
@@ -6,25 +6,7 @@ import com.github.kr328.clash.core.serialization.Parcels
 import kotlinx.serialization.Serializable
 
 @Serializable
-data class Proxy(val type: String) : Parcelable {
-    @Serializable
-    data class Packet(val proxies: Map<String, Proxy>)
-
-    override fun writeToParcel(parcel: Parcel, flags: Int) {
-        Parcels.dump(serializer(), this, parcel)
-    }
-
-    override fun describeContents(): Int {
-        return 0
-    }
-
-    companion object CREATOR : Parcelable.Creator<Proxy> {
-        override fun createFromParcel(parcel: Parcel): Proxy {
-            return Parcels.load(serializer(), parcel)
-        }
-
-        override fun newArray(size: Int): Array<Proxy?> {
-            return arrayOfNulls(size)
-        }
-    }
-}
\ No newline at end of file
+data class Proxy(val type: String,
+                 val all: List<String> = emptyList(),
+                 val now: String = "",
+                 val history: List<String> = emptyList())
\ No newline at end of file
diff --git a/core/src/main/java/com/github/kr328/clash/core/model/ProxyPacket.kt b/core/src/main/java/com/github/kr328/clash/core/model/ProxyPacket.kt
new file mode 100644
index 0000000..3aa1167
--- /dev/null
+++ b/core/src/main/java/com/github/kr328/clash/core/model/ProxyPacket.kt
@@ -0,0 +1,28 @@
+package com.github.kr328.clash.core.model
+
+import android.os.Parcel
+import android.os.Parcelable
+import com.github.kr328.clash.core.serialization.Parcels
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ProxyPacket(val proxies: Map<String, Proxy>) : Parcelable {
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        Parcels.dump(serializer(), this, parcel)
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<ProxyPacket> {
+        override fun createFromParcel(parcel: Parcel): ProxyPacket {
+            return Parcels.load(serializer(), parcel)
+        }
+
+        override fun newArray(size: Int): Array<ProxyPacket?> {
+            return arrayOfNulls(size)
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/service/src/main/aidl/com/github/kr328/clash/core/model/ProxyPacket.aidl b/service/src/main/aidl/com/github/kr328/clash/core/model/ProxyPacket.aidl
new file mode 100644
index 0000000..9e3d5fe
--- /dev/null
+++ b/service/src/main/aidl/com/github/kr328/clash/core/model/ProxyPacket.aidl
@@ -0,0 +1,3 @@
+package com.github.kr328.clash.core.model;
+
+parcelable ProxyPacket;
diff --git a/service/src/main/aidl/com/github/kr328/clash/service/IClashService.aidl b/service/src/main/aidl/com/github/kr328/clash/service/IClashService.aidl
index fd81da8..96a0048 100644
--- a/service/src/main/aidl/com/github/kr328/clash/service/IClashService.aidl
+++ b/service/src/main/aidl/com/github/kr328/clash/service/IClashService.aidl
@@ -4,6 +4,7 @@ import com.github.kr328.clash.service.IClashEventObserver;
 import com.github.kr328.clash.service.IClashEventService;
 import com.github.kr328.clash.service.IClashProfileService;
 import com.github.kr328.clash.core.event.Event;
+import com.github.kr328.clash.core.model.ProxyPacket;
 
 interface IClashService {
     // Services
@@ -18,4 +19,7 @@ interface IClashService {
     void stopTunDevice();
     void start();
     void stop();
+
+    // Query
+    ProxyPacket queryAllProxies();
 }
diff --git a/service/src/main/java/com/github/kr328/clash/service/ClashService.kt b/service/src/main/java/com/github/kr328/clash/service/ClashService.kt
index 1c0fa42..c63849f 100644
--- a/service/src/main/java/com/github/kr328/clash/service/ClashService.kt
+++ b/service/src/main/java/com/github/kr328/clash/service/ClashService.kt
@@ -11,8 +11,10 @@ import android.os.IInterface
 import android.os.ParcelFileDescriptor
 import com.github.kr328.clash.core.Clash
 import com.github.kr328.clash.core.event.*
+import com.github.kr328.clash.core.model.ProxyPacket
 import com.github.kr328.clash.core.utils.Log
 import com.github.kr328.clash.service.data.ClashDatabase
+import java.io.EOFException
 import java.io.File
 import java.io.IOException
 import java.util.concurrent.Executors
@@ -36,10 +38,24 @@ class ClashService : Service(), IClashEventObserver, ClashEventService.Master,
             clash.stopTunDevice()
         }
 
+        override fun queryAllProxies(): ProxyPacket {
+            return try {
+                ProxyPacket(clash.queryProxies().proxies.mapValues {
+                    it.value.copy(history = it.value.history.take(1))
+                })
+            } catch (e: Exception) {
+                this@ClashService.eventService.preformErrorEvent(
+                    ErrorEvent(ErrorEvent.Type.QUERY_PROXY_FAILURE, e.toString())
+                )
+
+                ProxyPacket(emptyMap())
+            }
+        }
+
         override fun start() {
             try {
                 clash.process.start()
-            } catch (e: IOException) {
+            } catch (e: Exception) {
                 Log.e("Start failure", e)
 
                 this@ClashService.eventService.preformErrorEvent(
@@ -58,7 +74,7 @@ class ClashService : Service(), IClashEventObserver, ClashEventService.Master,
 
                 clash.startTunDevice(fd.fileDescriptor, mtu)
                 fd.close()
-            } catch (e: IOException) {
+            } catch (e: Exception) {
                 Log.e("Start tun failure", e)
 
                 this@ClashService.eventService.preformErrorEvent(
diff --git a/service/src/main/java/com/github/kr328/clash/service/net/DefaultNetworkObserver.kt b/service/src/main/java/com/github/kr328/clash/service/net/DefaultNetworkObserver.kt
index af69472..3a7b544 100644
--- a/service/src/main/java/com/github/kr328/clash/service/net/DefaultNetworkObserver.kt
+++ b/service/src/main/java/com/github/kr328/clash/service/net/DefaultNetworkObserver.kt
@@ -49,15 +49,10 @@ class DefaultNetworkObserver(val context: Context, val listener: (Network?) -> U
     private fun rebuildNetworkList(): Network? {
         return try {
             connectivity.allNetworks
-                .map {
-                    connectivity.getNetworkCapabilities(it) to it
-                }
-                .filter {
-                    it.first != null
-                }
-                .map {
-                    it.first!! to it.second
+                .flatMap { network ->
+                    connectivity.getNetworkCapabilities(network)?.let { listOf(it to network) } ?: emptyList()
                 }
+                .asSequence()
                 .filterNot {
                     it.first.hasTransport(NetworkCapabilities.TRANSPORT_VPN) ||
                             !it.first.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)