diff --git a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/build.gradle b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/build.gradle
index 7f2f84a9..e678c72a 100644
--- a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/build.gradle
+++ b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'com.android.library'
 apply plugin: 'com.github.dcendents.android-maven'
 apply plugin: 'com.jfrog.bintray'
 
-version = "1.6.36"
+version = "1.6.37"
 
 android {
     compileSdkVersion 21
diff --git a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/AnalyticsMessages.java b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/AnalyticsMessages.java
index 913599aa..d6c165ab 100644
--- a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/AnalyticsMessages.java
+++ b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/AnalyticsMessages.java
@@ -88,11 +88,11 @@ public void enqueueEventMessage(final String type, final JSONObject eventJson) {
                 final Message m = Message.obtain();
                 m.what = FLUSH_QUEUE;
 
-                if (SensorsDataAPI.sharedInstance(mContext).isDebugMode() || ret ==
-                        DbAdapter.DB_OUT_OF_MEMORY_ERROR) {
-                    mWorker.runMessage(m);
-                } else {
-                    if (SensorsDataUtils.isNetworkAvailable(mContext)) {
+                if (SensorsDataUtils.isNetworkAvailable(mContext)) {
+                    if (SensorsDataAPI.sharedInstance(mContext).isDebugMode() || ret ==
+                            DbAdapter.DB_OUT_OF_MEMORY_ERROR) {
+                        mWorker.runMessage(m);
+                    } else {
                         // track_signup 立即发送
                         if (type.equals("track_signup") || ret > SensorsDataAPI.sharedInstance(mContext)
                                 .getFlushBulkSize()) {
diff --git a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/SensorsDataAPI.java b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/SensorsDataAPI.java
index c9de27db..3352e162 100644
--- a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/SensorsDataAPI.java
+++ b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/SensorsDataAPI.java
@@ -15,11 +15,8 @@
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.net.Uri;
-import android.net.wifi.WifiInfo;
-import android.net.wifi.WifiManager;
 import android.os.Build;
 import android.os.Bundle;
-import android.provider.Settings;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
@@ -229,6 +226,11 @@ boolean isDebugWriteData() {
                     deviceInfo.put("$carrier", "其他");
                 }
             }
+
+//            String androidID = SensorsDataUtils.getAndroidID(mContext);
+//            if (!TextUtils.isEmpty(androidID)) {
+//                deviceInfo.put("$device_id", androidID);
+//            }
         }
 
         mDeviceInfo = Collections.unmodifiableMap(deviceInfo);
@@ -1373,6 +1375,12 @@ public void onActivityStarted(Activity activity) {
                         mFirstStart.commit(false);
                     }
 
+                    try {
+                        appBecomeActive();
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+
                     if (mAutoTrack) {
                         try {
                             JSONObject properties = new JSONObject();
@@ -1462,6 +1470,12 @@ public void onActivityStopped(Activity activity) {
                 startedActivityCount = startedActivityCount - 1;
 
                 if (startedActivityCount == 0) {
+                    try {
+                        appEnterBackground();
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+
                     if (mAutoTrack) {
                         try {
                             track("$AppEnd");
@@ -1681,7 +1695,7 @@ private static void mergeJSONObject(final JSONObject source, JSONObject dest)
     static final int VTRACK_SUPPORTED_MIN_API = 16;
 
     // SDK版本
-    static final String VERSION = "1.6.36";
+    static final String VERSION = "1.6.37";
 
     static Boolean ENABLE_LOG = false;
 
diff --git a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/ViewCrawler.java b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/ViewCrawler.java
index a694eeb1..e7cc10e3 100644
--- a/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/ViewCrawler.java
+++ b/SensorsAnalyticsSDK/SensorsAnalyticsSDK/src/main/java/com/sensorsdata/analytics/android/sdk/ViewCrawler.java
@@ -199,10 +199,6 @@ public void onActivityResumed(Activity activity) {
 
             mStartedActivities.add(activity);
 
-            if (mStartedActivities.size() == 1) {
-                SensorsDataAPI.sharedInstance(mContext).appBecomeActive();
-            }
-
             for (String className : mDisabledActivity) {
                 if (className.equals(activity.getClass().getCanonicalName())) {
                     return;
@@ -223,9 +219,7 @@ public void onActivityPaused(Activity activity) {
 
         @Override
         public void onActivityStopped(Activity activity) {
-            if (mStartedActivities.size() == 0) {
-                SensorsDataAPI.sharedInstance(mContext).appEnterBackground();
-            }
+
         }
 
         @Override