Hide connection test in NAT mode

src/main/scala/com/github/shadowsocks/Shadowsocks.scala

@@ -209,7 +209,11 @@ class Shadowsocks
   def updateTraffic(): Unit = if (trafficCache == null) callback.trafficUpdated(TrafficMonitor.getTxRate,
     TrafficMonitor.getRxRate, TrafficMonitor.getTxTotal, TrafficMonitor.getRxTotal) else {
     if (connectionTestResult == null) connectionTestResult = getString(R.string.connection_test_pending)
-    preferences.stat.setSummary(connectionTestResult + "\n" + trafficCache)
+    if (preferences.natSwitch.isChecked) {
+      preferences.stat.setSummary(trafficCache)
+    } else {
+      preferences.stat.setSummary(connectionTestResult + "\n" + trafficCache)
+    }
   }
 
   def attachService: Unit = attachService(callback)

src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala

@@ -364,10 +364,11 @@ class ShadowsocksNatService extends BaseService {
       init_sb.append(cmd_bypass.replace("-p tcp -d 0.0.0.0", "-d " + config.proxy))
     }
     init_sb.append(cmd_bypass.replace("-p tcp -d 0.0.0.0", "-d 127.0.0.1"))
+    init_sb.append(cmd_bypass.replace("-p tcp -d 0.0.0.0", "-m owner --uid-owner " + myUid))
     init_sb.append(cmd_bypass.replace("-d 0.0.0.0", "--dport 53"))
 
     init_sb.append(Utils.getIptables
-      + " -t nat -A OUTPUT -p udp --dport 53 -j DNAT --to-destination 127.0.0.1:" + 8153)
+      + " -t nat -A OUTPUT -p udp --dport 53 -j DNAT --to-destination 127.0.0.1:8153")
 
     if (!config.isProxyApps || config.isBypassApps) {
       http_sb.append(Utils.getIptables + CMD_IPTABLES_DNAT_ADD_SOCKS)

src/main/scala/com/github/shadowsocks/ShadowsocksSettings.scala

@@ -38,7 +38,7 @@ class ShadowsocksSettings extends PreferenceFragment with OnSharedPreferenceChan
       }
       ThrowableFuture {
         // Based on: https://android.googlesource.com/platform/frameworks/base/+/master/services/core/java/com/android/server/connectivity/NetworkMonitor.java#640
-        autoDisconnect(new URL("https", "www.google.com", "/generate_204").openConnection
+        autoDisconnect(new URL("https", "www.google.com", "/generate_204").openConnection()
           .asInstanceOf[HttpURLConnection]) { conn =>
           conn.setConnectTimeout(5 * 1000)
           conn.setReadTimeout(5 * 1000)