Update notification icon based on traffic

Notification icon would be a good indication for current traffic
- going through proxy
- connect directly
- not going through v2rayNG

V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayVpnService.kt

@@ -40,6 +40,7 @@ class V2RayVpnService : VpnService() {
         const val NOTIFICATION_ID = 1
         const val NOTIFICATION_PENDING_INTENT_CONTENT = 0
         const val NOTIFICATION_PENDING_INTENT_STOP_V2RAY = 1
+        const val NOTIFICATION_ICON_THRESHOLD = 3000
 
         fun startV2Ray(context: Context) {
             val intent = Intent(context.applicationContext, V2RayVpnService::class.java)
@@ -359,8 +360,15 @@ class V2RayVpnService : VpnService() {
         mSubscription = null
     }
 
-    private fun updateNotification(contentText: String) {
+    private fun updateNotification(contentText: String, proxyTraffic: Long, directTraffic: Long) {
         if (mBuilder != null) {
+            if (proxyTraffic < NOTIFICATION_ICON_THRESHOLD && directTraffic < NOTIFICATION_ICON_THRESHOLD) {
+                mBuilder?.setSmallIcon(R.drawable.ic_v)
+            } else if (proxyTraffic > directTraffic) {
+                mBuilder?.setSmallIcon(R.drawable.ic_stat_proxy)
+            } else {
+                mBuilder?.setSmallIcon(R.drawable.ic_stat_direct)
+            }
             mBuilder?.setStyle(NotificationCompat.BigTextStyle().bigText(contentText))
             getNotificationManager().notify(NOTIFICATION_ID, mBuilder?.build())
         }
@@ -393,7 +401,8 @@ class V2RayVpnService : VpnService() {
                             updateNotification("proxy\t•  ${(proxyUplink / sinceLastQueryInSeconds).toLong().toSpeedString()}↑  " +
                                     "${(proxyDownlink / sinceLastQueryInSeconds).toLong().toSpeedString()}↓\n" +
                                     "direct\t•  ${(directUplink / sinceLastQueryInSeconds).toLong().toSpeedString()}↑  " +
-                                    "${(directDownlink / sinceLastQueryInSeconds).toLong().toSpeedString()}↓")
+                                    "${(directDownlink / sinceLastQueryInSeconds).toLong().toSpeedString()}↓",
+                                    proxyDownlink + proxyUplink, directDownlink + directUplink)
                         }
                         last_zero_speed = zero_speed
                         lastQueryTime = queryTime
@@ -408,7 +417,7 @@ class V2RayVpnService : VpnService() {
             mSubscription = null
 
             val cf_name = defaultDPreference.getPrefString(AppConfig.PREF_CURR_CONFIG_NAME, "")
-            updateNotification(cf_name)
+            updateNotification(cf_name, 0, 0)
         }
     }
 

V2rayNG/app/src/main/res/values-zh-rCN/strings.xml

@@ -83,7 +83,7 @@
     <string name="summary_pref_mux_enabled">开启可能会加速,关闭可能会减少断流</string>
 
     <string name="title_pref_speed_enabled">启用速度显示</string>
-    <string name="summary_pref_speed_enabled">在通知中显示当前速度</string>
+    <string name="summary_pref_speed_enabled">在通知中显示当前速度\n小图标显示流量的路由情况</string>
 
     <string name="title_pref_sniffing_enabled">启用流量探测</string>
     <string name="summary_pref_sniffing_enabled">流量探测</string>

V2rayNG/app/src/main/res/values-zh-rTW/strings.xml

@@ -84,7 +84,7 @@
     <string name="summary_pref_mux_enabled">啟用或許會加快網路速度，切換或許會閃爍</string>
 
     <string name="title_pref_speed_enabled">啟用速度顯示</string>
-    <string name="summary_pref_speed_enabled">在通知中顯示當前速度</string>
+    <string name="summary_pref_speed_enabled">在通知中顯示當前速度\n小圖標顯示流量的路由情況</string>
 
     <string name="title_pref_sniffing_enabled">啟用流量探測</string>
     <string name="summary_pref_sniffing_enabled">流量探測</string>

V2rayNG/app/src/main/res/values/strings.xml

@@ -84,7 +84,8 @@
     <string name="summary_pref_mux_enabled">Enable maybe speed up network and switch network maybe flash</string>
 
     <string name="title_pref_speed_enabled">Enable speed display</string>
-    <string name="summary_pref_speed_enabled">Display current speed in the notification</string>
+    <string name="summary_pref_speed_enabled">Display current speed in the notification.\nNotification icon would change based on
+        usage.</string>
 
     <string name="title_pref_sniffing_enabled">Enable Sniffing</string>
     <string name="summary_pref_sniffing_enabled">Sniffing</string>