diff --git a/README.md b/README.md
index a6f3eb0..1fdebd1 100644
--- a/README.md
+++ b/README.md
@@ -189,5 +189,5 @@ https://www.yuque.com/yuanfangxiyang/ma4ytb/vvy3iz/edit#nnzKN
 android端sdk引用
 
 ```
-    implementation "com.farsunset:cim-android-sdk:4.2.0"
+    implementation "com.farsunset:cim-android-sdk:4.2.5"
 ```
\ No newline at end of file
diff --git a/cim-client-sdk-libs/android/cim-android-sdk-4.2.0.jar b/cim-client-sdk-libs/android/cim-android-sdk-4.2.0.jar
deleted file mode 100644
index 02273d2..0000000
Binary files a/cim-client-sdk-libs/android/cim-android-sdk-4.2.0.jar and /dev/null differ
diff --git a/cim-client-sdk/cim-android-sdk/pom.xml b/cim-client-sdk/cim-android-sdk/pom.xml
index bb485ca..a51bc2b 100755
--- a/cim-client-sdk/cim-android-sdk/pom.xml
+++ b/cim-client-sdk/cim-android-sdk/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.farsunset</groupId>
     <artifactId>cim-android-sdk</artifactId>
-    <version>4.2.0</version>
+    <version>4.2.5</version>
     <packaging>jar</packaging>
 
     <name>${project.groupId}:${project.artifactId}</name>
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMConnectorManager.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMConnectorManager.java
index 8bd4640..095f6b0 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMConnectorManager.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMConnectorManager.java
@@ -27,6 +27,7 @@ import android.os.Handler;
 import com.farsunset.cim.sdk.android.coder.ClientMessageDecoder;
 import com.farsunset.cim.sdk.android.coder.ClientMessageEncoder;
 import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.IntentAction;
 import com.farsunset.cim.sdk.android.logger.CIMLogger;
 import com.farsunset.cim.sdk.android.model.*;
 
@@ -95,7 +96,7 @@ class CIMConnectorManager {
 
             Intent intent = new Intent();
             intent.setPackage(context.getPackageName());
-            intent.setAction(CIMConstant.IntentAction.ACTION_CONNECT_FAILED);
+            intent.setAction(IntentAction.ACTION_CONNECT_FAILED);
             context.sendBroadcast(intent);
 
             return;
@@ -205,7 +206,7 @@ class CIMConnectorManager {
 
         Intent intent = new Intent();
         intent.setPackage(context.getPackageName());
-        intent.setAction(CIMConstant.IntentAction.ACTION_CONNECT_FINISHED);
+        intent.setAction(IntentAction.ACTION_CONNECT_FINISHED);
         context.sendBroadcast(intent);
 
     }
@@ -218,7 +219,7 @@ class CIMConnectorManager {
 
         Intent intent = new Intent();
         intent.setPackage(context.getPackageName());
-        intent.setAction(CIMConstant.IntentAction.ACTION_CONNECTION_CLOSED);
+        intent.setAction(IntentAction.ACTION_CONNECTION_CLOSED);
         context.sendBroadcast(intent);
 
     }
@@ -237,7 +238,7 @@ class CIMConnectorManager {
 
             Intent intent = new Intent();
             intent.setPackage(context.getPackageName());
-            intent.setAction(CIMConstant.IntentAction.ACTION_MESSAGE_RECEIVED);
+            intent.setAction(IntentAction.ACTION_MESSAGE_RECEIVED);
             intent.putExtra(Message.class.getName(), (Message) obj);
             context.sendBroadcast(intent);
 
@@ -246,7 +247,7 @@ class CIMConnectorManager {
 
             Intent intent = new Intent();
             intent.setPackage(context.getPackageName());
-            intent.setAction(CIMConstant.IntentAction.ACTION_REPLY_RECEIVED);
+            intent.setAction(IntentAction.ACTION_REPLY_RECEIVED);
             intent.putExtra(ReplyBody.class.getName(), (ReplyBody) obj);
             context.sendBroadcast(intent);
         }
@@ -260,7 +261,7 @@ class CIMConnectorManager {
         if (message instanceof SentBody) {
             Intent intent = new Intent();
             intent.setPackage(context.getPackageName());
-            intent.setAction(CIMConstant.IntentAction.ACTION_SEND_FINISHED);
+            intent.setAction(IntentAction.ACTION_SEND_FINISHED);
             intent.putExtra(SentBody.class.getName(), (SentBody) message);
             context.sendBroadcast(intent);
         }
@@ -288,7 +289,7 @@ class CIMConnectorManager {
 
         Intent intent = new Intent();
         intent.setPackage(context.getPackageName());
-        intent.setAction(CIMConstant.IntentAction.ACTION_CONNECT_FAILED);
+        intent.setAction(IntentAction.ACTION_CONNECT_FAILED);
         intent.putExtra("interval", interval);
         context.sendBroadcast(intent);
 
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMEventBroadcastReceiver.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMEventBroadcastReceiver.java
index 5945434..7ab04e8 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMEventBroadcastReceiver.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMEventBroadcastReceiver.java
@@ -25,8 +25,10 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.net.ConnectivityManager;
-import android.os.Build;
+import com.farsunset.cim.sdk.android.constant.BundleKey;
 import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.IntentAction;
+import com.farsunset.cim.sdk.android.constant.ServiceAction;
 import com.farsunset.cim.sdk.android.model.Message;
 import com.farsunset.cim.sdk.android.model.ReplyBody;
 import com.farsunset.cim.sdk.android.model.SentBody;
@@ -38,7 +40,6 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
 
     protected Context context;
 
-    @SuppressWarnings("deprecation")
     @Override
     public void onReceive(Context context, Intent intent) {
 
@@ -50,6 +51,7 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
          * 操作事件广播，用于提高service存活率
          */
         if (Intent.ACTION_USER_PRESENT.equals(action)
+                || Intent.ACTION_BOOT_COMPLETED.equals(action)
                 || Intent.ACTION_POWER_CONNECTED.equals(action)
                 || Intent.ACTION_POWER_DISCONNECTED.equals(action)) {
             startPushService();
@@ -58,7 +60,7 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
         /*
          * 设备网络状态变化事件
          */
-        if (CIMConstant.IntentAction.ACTION_NETWORK_CHANGED.equals(action)
+        if (IntentAction.ACTION_NETWORK_CHANGED.equals(action)
                 || ConnectivityManager.CONNECTIVITY_ACTION.equals(action)) {
 
             onDevicesNetworkChanged();
@@ -67,14 +69,14 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
         /*
          * cim断开服务器事件
          */
-        if (CIMConstant.IntentAction.ACTION_CONNECTION_CLOSED.equals(action)) {
+        if (IntentAction.ACTION_CONNECTION_CLOSED.equals(action)) {
             onInnerConnectionClosed();
         }
 
         /*
          * cim连接服务器失败事件
          */
-        if (CIMConstant.IntentAction.ACTION_CONNECT_FAILED.equals(action)) {
+        if (IntentAction.ACTION_CONNECT_FAILED.equals(action)) {
             long interval = intent.getLongExtra("interval", CIMConstant.RECONNECT_INTERVAL_TIME);
             onInnerConnectFailed(interval);
         }
@@ -82,21 +84,21 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
         /*
          * cim连接服务器成功事件
          */
-        if (CIMConstant.IntentAction.ACTION_CONNECT_FINISHED.equals(action)) {
+        if (IntentAction.ACTION_CONNECT_FINISHED.equals(action)) {
             onInnerConnectFinished();
         }
 
         /*
          * 收到推送消息事件
          */
-        if (CIMConstant.IntentAction.ACTION_MESSAGE_RECEIVED.equals(action)) {
+        if (IntentAction.ACTION_MESSAGE_RECEIVED.equals(action)) {
             onInnerMessageReceived((Message) intent.getSerializableExtra(Message.class.getName()), intent);
         }
 
         /*
          * 获取收到replyBody成功事件
          */
-        if (CIMConstant.IntentAction.ACTION_REPLY_RECEIVED.equals(action)) {
+        if (IntentAction.ACTION_REPLY_RECEIVED.equals(action)) {
             onReplyReceived((ReplyBody) intent.getSerializableExtra(ReplyBody.class.getName()));
         }
 
@@ -104,27 +106,26 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
         /*
          * 获取sendBody发送成功事件
          */
-        if (CIMConstant.IntentAction.ACTION_SEND_FINISHED.equals(action)) {
+        if (IntentAction.ACTION_SEND_FINISHED.equals(action)) {
             onSentSucceed((SentBody) intent.getSerializableExtra(SentBody.class.getName()));
         }
 
         /*
          * 重新连接，如果断开的话
          */
-        if (CIMConstant.IntentAction.ACTION_CONNECTION_RECOVERY.equals(action)) {
+        if (IntentAction.ACTION_CONNECTION_RECOVERY.equals(action)) {
             connect(0);
         }
     }
 
     private void startPushService() {
 
-        Intent intent = new Intent(context, CIMPushService.class);
-        intent.setAction(CIMPushManager.ACTION_ACTIVATE_PUSH_SERVICE);
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            context.startForegroundService(intent);
-        } else {
-            context.startService(intent);
+        try {
+            Intent intent = new Intent(context, CIMPushService.class);
+            intent.setAction(ServiceAction.ACTION_ACTIVATE_PUSH_SERVICE);
+            CIMPushManager.startService(context,intent);
+        }catch (Exception ignore){
+            context.sendBroadcast(new Intent(IntentAction.ACTION_CONNECTION_RECOVERY));
         }
 
     }
@@ -167,8 +168,8 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
 
     private void connect(long delay) {
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.putExtra(CIMPushService.KEY_DELAYED_TIME, delay);
-        serviceIntent.setAction(CIMPushManager.ACTION_CREATE_CIM_CONNECTION);
+        serviceIntent.putExtra(BundleKey.KEY_DELAYED_TIME, delay);
+        serviceIntent.setAction(ServiceAction.ACTION_CREATE_CIM_CONNECTION);
         CIMPushManager.startService(context, serviceIntent);
     }
 
@@ -181,12 +182,11 @@ public abstract class CIMEventBroadcastReceiver extends BroadcastReceiver {
     }
 
     private boolean isForceOfflineMessage(String action) {
-        return CIMConstant.MessageAction.ACTION_999.equals(action);
+        return CIMConstant.ACTION_999.equals(action);
     }
 
     /**
      * 接收消息实现方法
-     *
      * @param message
      * @param intent
      */
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushManager.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushManager.java
index 130bc18..970478b 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushManager.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushManager.java
@@ -30,7 +30,9 @@ import android.net.NetworkInfo;
 import android.os.Build;
 import android.os.LocaleList;
 import android.text.TextUtils;
-import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.BundleKey;
+import com.farsunset.cim.sdk.android.constant.RequestKey;
+import com.farsunset.cim.sdk.android.constant.ServiceAction;
 import com.farsunset.cim.sdk.android.logger.CIMLogger;
 import com.farsunset.cim.sdk.android.model.SentBody;
 
@@ -43,24 +45,6 @@ import java.util.UUID;
 public class CIMPushManager {
 
 
-    protected static final String ACTION_CREATE_CIM_CONNECTION = "ACTION_CREATE_CIM_CONNECTION";
-
-    protected static final String ACTION_DESTROY_CIM_SERVICE = "ACTION_DESTROY_CIM_SERVICE";
-
-    protected static final String ACTION_ACTIVATE_PUSH_SERVICE = "ACTION_ACTIVATE_PUSH_SERVICE";
-
-    protected static final String ACTION_SEND_REQUEST_BODY = "ACTION_SEND_REQUEST_BODY";
-
-    protected static final String ACTION_CLOSE_CIM_CONNECTION = "ACTION_CLOSE_CIM_CONNECTION";
-
-    protected static final String ACTION_SET_LOGGER_EATABLE = "ACTION_SET_LOGGER_EATABLE";
-
-    protected static final String ACTION_SHOW_PERSIST_NOTIFICATION = "ACTION_SHOW_PERSIST_NOTIFICATION";
-
-    protected static final String ACTION_HIDE_PERSIST_NOTIFICATION = "ACTION_HIDE_PERSIST_NOTIFICATION";
-
-    protected static final String ACTION_CIM_CONNECTION_PONG = "ACTION_CIM_CONNECTION_PONG";
-
     /**
      * 初始化,连接服务端，在程序启动页或者 在Application里调用
      * @param context
@@ -82,7 +66,7 @@ public class CIMPushManager {
 
 
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.setAction(ACTION_CREATE_CIM_CONNECTION);
+        serviceIntent.setAction(ServiceAction.ACTION_CREATE_CIM_CONNECTION);
         startService(context, serviceIntent);
 
     }
@@ -94,8 +78,8 @@ public class CIMPushManager {
      */
     public static void setLoggerEnable(Context context, boolean enable) {
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.putExtra(CIMPushService.KEY_LOGGER_ENABLE, enable);
-        serviceIntent.setAction(ACTION_SET_LOGGER_EATABLE);
+        serviceIntent.putExtra(BundleKey.KEY_LOGGER_ENABLE, enable);
+        serviceIntent.setAction(ServiceAction.ACTION_SET_LOGGER_EATABLE);
         startService(context, serviceIntent);
     }
 
@@ -109,10 +93,10 @@ public class CIMPushManager {
      */
     public static void startForeground(Context context,int icon, String channel , String message) {
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.putExtra(CIMPushService.KEY_NOTIFICATION_MESSAGE, message);
-        serviceIntent.putExtra(CIMPushService.KEY_NOTIFICATION_CHANNEL, channel);
-        serviceIntent.putExtra(CIMPushService.KEY_NOTIFICATION_ICON, icon);
-        serviceIntent.setAction(ACTION_SHOW_PERSIST_NOTIFICATION);
+        serviceIntent.putExtra(BundleKey.KEY_NOTIFICATION_MESSAGE, message);
+        serviceIntent.putExtra(BundleKey.KEY_NOTIFICATION_CHANNEL, channel);
+        serviceIntent.putExtra(BundleKey.KEY_NOTIFICATION_ICON, icon);
+        serviceIntent.setAction(ServiceAction.ACTION_SHOW_PERSIST_NOTIFICATION);
         startService(context, serviceIntent);
     }
 
@@ -122,7 +106,7 @@ public class CIMPushManager {
      */
     public static void cancelForeground(Context context) {
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.setAction(ACTION_HIDE_PERSIST_NOTIFICATION);
+        serviceIntent.setAction(ServiceAction.ACTION_HIDE_PERSIST_NOTIFICATION);
         startService(context, serviceIntent);
     }
 
@@ -159,7 +143,7 @@ public class CIMPushManager {
     public static void setTag(Context context, String tag) {
 
         SentBody sent = new SentBody();
-        sent.setKey(CIMConstant.RequestKey.CLIENT_SET_TAG);
+        sent.setKey(RequestKey.CLIENT_SET_TAG);
         sent.put("tag", tag);
         sendRequest(context, sent);
 
@@ -172,7 +156,7 @@ public class CIMPushManager {
     public static void removeTag(Context context) {
 
         SentBody sent = new SentBody();
-        sent.setKey(CIMConstant.RequestKey.CLIENT_REMOVE_TAG);
+        sent.setKey(RequestKey.CLIENT_REMOVE_TAG);
         sendRequest(context, sent);
 
     }
@@ -187,7 +171,7 @@ public class CIMPushManager {
         }
 
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.setAction(ACTION_CIM_CONNECTION_PONG);
+        serviceIntent.setAction(ServiceAction.ACTION_CIM_CONNECTION_PONG);
         startService(context, serviceIntent);
     }
 
@@ -199,7 +183,7 @@ public class CIMPushManager {
         CIMCacheManager.putString(context, CIMCacheManager.KEY_UID, uid);
 
         SentBody sent = new SentBody();
-        sent.setKey(CIMConstant.RequestKey.CLIENT_BIND);
+        sent.setKey(RequestKey.CLIENT_BIND);
         sent.put("uid", String.valueOf(uid));
         sent.put("channel", "android");
         sent.put("deviceId", getDeviceId(context));
@@ -237,8 +221,8 @@ public class CIMPushManager {
         }
 
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.putExtra(CIMPushService.KEY_SEND_BODY, body);
-        serviceIntent.setAction(ACTION_SEND_REQUEST_BODY);
+        serviceIntent.putExtra(BundleKey.KEY_SEND_BODY, body);
+        serviceIntent.setAction(ServiceAction.ACTION_SEND_REQUEST_BODY);
         startService(context, serviceIntent);
 
     }
@@ -255,7 +239,7 @@ public class CIMPushManager {
         CIMCacheManager.putBoolean(context, CIMCacheManager.KEY_MANUAL_STOP, true);
 
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.setAction(ACTION_CLOSE_CIM_CONNECTION);
+        serviceIntent.setAction(ServiceAction.ACTION_CLOSE_CIM_CONNECTION);
         startService(context, serviceIntent);
 
     }
@@ -269,7 +253,7 @@ public class CIMPushManager {
         CIMCacheManager.remove(context, CIMCacheManager.KEY_UID);
 
         Intent serviceIntent = new Intent(context, CIMPushService.class);
-        serviceIntent.setAction(ACTION_DESTROY_CIM_SERVICE);
+        serviceIntent.setAction(ServiceAction.ACTION_DESTROY_CIM_SERVICE);
         startService(context, serviceIntent);
 
     }
@@ -337,6 +321,7 @@ public class CIMPushManager {
         }
     }
 
+
     private static String getVersionName(Context context) {
 
         try {
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushService.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushService.java
index c71e937..565e63e 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushService.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMPushService.java
@@ -32,7 +32,9 @@ import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
 import android.util.Log;
-import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.BundleKey;
+import com.farsunset.cim.sdk.android.constant.IntentAction;
+import com.farsunset.cim.sdk.android.constant.ServiceAction;
 import com.farsunset.cim.sdk.android.logger.CIMLogger;
 import com.farsunset.cim.sdk.android.model.Pong;
 import com.farsunset.cim.sdk.android.model.SentBody;
@@ -46,13 +48,6 @@ import java.util.concurrent.atomic.AtomicBoolean;
  */
 public class CIMPushService extends Service {
 
-    static final String KEY_SEND_BODY = "KEY_SEND_BODY";
-    static final String KEY_DELAYED_TIME = "KEY_DELAYED_TIME";
-    static final String KEY_LOGGER_ENABLE = "KEY_LOGGER_ENABLE";
-    static final String KEY_NOTIFICATION_MESSAGE = "KEY_NOTIFICATION_MESSAGE";
-    static final String KEY_NOTIFICATION_CHANNEL = "KEY_NOTIFICATION_CHANNEL";
-    static final String KEY_NOTIFICATION_ICON = "KEY_NOTIFICATION_ICON";
-
     private static final String TRANSIENT_NTC_CHANNEL_ID = "CIM_PUSH_TRANSIENT_NTC_ID";
     private static final String PERSIST_NTC_CHANNEL_ID = "CIM_PUSH_PERSIST_NTC_ID";
 
@@ -89,20 +84,13 @@ public class CIMPushService extends Service {
     private final ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() {
         @Override
         public void onAvailable(Network network) {
-            Intent intent = new Intent();
-            intent.setPackage(getPackageName());
-            intent.setAction(CIMConstant.IntentAction.ACTION_NETWORK_CHANGED);
-            sendBroadcast(intent);
+            sendBroadcast(new Intent(IntentAction.ACTION_NETWORK_CHANGED));
         }
 
         @Override
         public void onLost(Network network) {
-            Intent intent = new Intent();
-            intent.setPackage(getPackageName());
-            intent.setAction(CIMConstant.IntentAction.ACTION_NETWORK_CHANGED);
-            sendBroadcast(intent);
+            sendBroadcast(new Intent(IntentAction.ACTION_NETWORK_CHANGED));
         }
-
     };
 
     private final Handler connectHandler = new Handler() {
@@ -125,50 +113,52 @@ public class CIMPushService extends Service {
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
 
-        String action = intent == null ? CIMPushManager.ACTION_ACTIVATE_PUSH_SERVICE : intent.getAction();
+        Intent newIntent = intent == null ? new Intent(ServiceAction.ACTION_ACTIVATE_PUSH_SERVICE) : intent;
+
+        String action = newIntent.getAction();
 
         if (!persistHolder.get()) {
             createNotification();
         }
 
-        if (CIMPushManager.ACTION_CREATE_CIM_CONNECTION.equals(action)) {
-            this.prepareConnect(intent.getLongExtra(KEY_DELAYED_TIME, 0));
+        if (ServiceAction.ACTION_CREATE_CIM_CONNECTION.equals(action)) {
+            this.prepareConnect(newIntent.getLongExtra(BundleKey.KEY_DELAYED_TIME, 0));
         }
 
-        if (CIMPushManager.ACTION_SEND_REQUEST_BODY.equals(action)) {
-            connectorManager.send((SentBody) intent.getSerializableExtra(KEY_SEND_BODY));
+        if (ServiceAction.ACTION_SEND_REQUEST_BODY.equals(action)) {
+            connectorManager.send((SentBody) newIntent.getSerializableExtra(BundleKey.KEY_SEND_BODY));
         }
 
-        if (CIMPushManager.ACTION_CLOSE_CIM_CONNECTION.equals(action)) {
+        if (ServiceAction.ACTION_CLOSE_CIM_CONNECTION.equals(action)) {
             connectorManager.close();
         }
 
-        if (CIMPushManager.ACTION_ACTIVATE_PUSH_SERVICE.equals(action)) {
+        if (ServiceAction.ACTION_ACTIVATE_PUSH_SERVICE.equals(action)) {
             handleKeepAlive();
         }
 
-        if (CIMPushManager.ACTION_DESTROY_CIM_SERVICE.equals(action)) {
+        if (ServiceAction.ACTION_DESTROY_CIM_SERVICE.equals(action)) {
             connectorManager.close();
             this.stopSelf();
         }
 
-        if (CIMPushManager.ACTION_CIM_CONNECTION_PONG.equals(action)) {
+        if (ServiceAction.ACTION_CIM_CONNECTION_PONG.equals(action)) {
             connectorManager.send(Pong.getInstance());
         }
 
-        if (CIMPushManager.ACTION_SET_LOGGER_EATABLE.equals(action)) {
-            boolean enable = intent.getBooleanExtra(KEY_LOGGER_ENABLE, true);
+        if (ServiceAction.ACTION_SET_LOGGER_EATABLE.equals(action)) {
+            boolean enable = newIntent.getBooleanExtra(BundleKey.KEY_LOGGER_ENABLE, true);
             CIMLogger.getLogger().debugMode(enable);
         }
 
-        if (CIMPushManager.ACTION_SHOW_PERSIST_NOTIFICATION.equals(action)) {
-            createPersistNotification(intent.getStringExtra(KEY_NOTIFICATION_CHANNEL),
-                    intent.getStringExtra(KEY_NOTIFICATION_MESSAGE),
-                    intent.getIntExtra(KEY_NOTIFICATION_ICON,0));
+        if (ServiceAction.ACTION_SHOW_PERSIST_NOTIFICATION.equals(action)) {
+            createPersistNotification(newIntent.getStringExtra(BundleKey.KEY_NOTIFICATION_CHANNEL),
+                    newIntent.getStringExtra(BundleKey.KEY_NOTIFICATION_MESSAGE),
+                    newIntent.getIntExtra(BundleKey.KEY_NOTIFICATION_ICON,0));
             persistHolder.set(true);
         }
 
-        if (CIMPushManager.ACTION_HIDE_PERSIST_NOTIFICATION.equals(action)) {
+        if (ServiceAction.ACTION_HIDE_PERSIST_NOTIFICATION.equals(action)) {
             stopForeground(true);
             persistHolder.set(false);
         }
@@ -177,7 +167,7 @@ public class CIMPushService extends Service {
             notificationHandler.sendEmptyMessageDelayed(0, 200);
         }
 
-        return super.onStartCommand(intent,flags,startId);
+        return Service.START_REDELIVER_INTENT;
     }
 
     private void prepareConnect(long delayMillis) {
@@ -319,6 +309,8 @@ public class CIMPushService extends Service {
             intentFilter.addAction(Intent.ACTION_POWER_CONNECTED);
             intentFilter.addAction(Intent.ACTION_POWER_DISCONNECTED);
             intentFilter.addAction(Intent.ACTION_USER_PRESENT);
+            intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED);
+            intentFilter.addAction(IntentAction.ACTION_CONNECTION_RECOVERY);
             return intentFilter;
         }
 
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/coder/ClientMessageDecoder.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/coder/ClientMessageDecoder.java
index feff18e..6eefd0d 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/coder/ClientMessageDecoder.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/coder/ClientMessageDecoder.java
@@ -22,7 +22,7 @@
 package com.farsunset.cim.sdk.android.coder;
 
 
-import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.ProtobufType;
 import com.farsunset.cim.sdk.android.model.Message;
 import com.farsunset.cim.sdk.android.model.Ping;
 import com.farsunset.cim.sdk.android.model.ReplyBody;
@@ -72,11 +72,11 @@ public class ClientMessageDecoder {
         /*
          消息读取完成后，通过type来解析成对应的消息体
          */
-        if (CIMConstant.ProtobufType.PING == type) {
+        if (ProtobufType.PING == type) {
             return Ping.getInstance();
         }
 
-        if (CIMConstant.ProtobufType.REPLY_BODY == type) {
+        if (ProtobufType.REPLY_BODY == type) {
             ReplyBodyProto.Model bodyProto = ReplyBodyProto.Model.parseFrom(bodyBuffer.array());
             ReplyBody body = new ReplyBody();
             body.setKey(bodyProto.getKey());
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/BundleKey.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/BundleKey.java
new file mode 100644
index 0000000..6476c86
--- /dev/null
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/BundleKey.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2013-2019 Xia Jun(3979434@qq.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ***************************************************************************************
+ *                                                                                     *
+ *                        Website : http://www.farsunset.com                           *
+ *                                                                                     *
+ ***************************************************************************************
+ */
+package com.farsunset.cim.sdk.android.constant;
+
+public interface BundleKey {
+
+    String KEY_SEND_BODY = "KEY_SEND_BODY";
+
+    String KEY_DELAYED_TIME = "KEY_DELAYED_TIME";
+
+    String KEY_LOGGER_ENABLE = "KEY_LOGGER_ENABLE";
+
+    String KEY_NOTIFICATION_MESSAGE = "KEY_NOTIFICATION_MESSAGE";
+
+    String KEY_NOTIFICATION_CHANNEL = "KEY_NOTIFICATION_CHANNEL";
+
+    String KEY_NOTIFICATION_ICON = "KEY_NOTIFICATION_ICON";
+
+}
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/CIMConstant.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/CIMConstant.java
index 00c7d98..582f1fe 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/CIMConstant.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/CIMConstant.java
@@ -30,84 +30,9 @@ public interface CIMConstant {
      */
     int DATA_HEADER_LENGTH = 3;
 
-    interface ProtobufType {
-
-        /*
-        客户端->服务端 发送的心跳响应
-        */
-        byte PONG = 0;
-
-        /*
-        服务端->客户端 发送的心跳请求
-        */
-        byte PING = 1;
-
-        byte MESSAGE = 2;
-
-        byte SENT_BODY = 3;
-
-        byte REPLY_BODY = 4;
-    }
-
-    interface RequestKey {
-
-        String CLIENT_BIND = "client_bind";
-
-        String CLIENT_SET_TAG = "client_set_tag";
-
-        String CLIENT_REMOVE_TAG = "client_remove_tag";
-
-    }
-
-    interface MessageAction {
-
-        /*
-        被其他设备登录挤下线消息
-         */
-        String ACTION_999 = "999";
-    }
-
-    interface IntentAction {
-
-        /*
-         消息广播action
-         */
-        String ACTION_MESSAGE_RECEIVED = "com.farsunset.cim.MESSAGE_RECEIVED";
-
-        /*
-         发送sendBody成功广播
-         */
-        String ACTION_SEND_FINISHED = "com.farsunset.cim.SEND_FINISHED";
-
-        /*
-         链接意外关闭广播
-         */
-        String ACTION_CONNECTION_CLOSED = "com.farsunset.cim.CONNECTION_CLOSED";
-
-        /*
-         链接失败广播
-         */
-        String ACTION_CONNECT_FAILED = "com.farsunset.cim.CONNECT_FAILED";
-
-        /*
-         链接成功广播
-         */
-        String ACTION_CONNECT_FINISHED = "com.farsunset.cim.CONNECT_FINISHED";
-
-        /*
-         发送sendBody成功后获得replayBody回应广播
-         */
-        String ACTION_REPLY_RECEIVED = "com.farsunset.cim.REPLY_RECEIVED";
-
-        /*
-         网络变化广播
-         */
-        String ACTION_NETWORK_CHANGED = "com.farsunset.cim.NETWORK_CHANGED";
-
-        /*
-         重试连接
-         */
-        String ACTION_CONNECTION_RECOVERY = "com.farsunset.cim.CONNECTION_RECOVERY";
-    }
+    /*
+      被其他设备登录挤下线消息
+     */
+    String ACTION_999 = "999";
 
 }
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/IntentAction.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/IntentAction.java
new file mode 100644
index 0000000..b4604a2
--- /dev/null
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/IntentAction.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2013-2019 Xia Jun(3979434@qq.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ***************************************************************************************
+ *                                                                                     *
+ *                        Website : http://www.farsunset.com                           *
+ *                                                                                     *
+ ***************************************************************************************
+ */
+package com.farsunset.cim.sdk.android.constant;
+
+public interface IntentAction {
+
+    /*
+     消息广播action
+     */
+    String ACTION_MESSAGE_RECEIVED = "com.farsunset.cim.MESSAGE_RECEIVED";
+
+    /*
+     发送sendBody成功广播
+     */
+    String ACTION_SEND_FINISHED = "com.farsunset.cim.SEND_FINISHED";
+
+    /*
+     链接意外关闭广播
+     */
+    String ACTION_CONNECTION_CLOSED = "com.farsunset.cim.CONNECTION_CLOSED";
+
+    /*
+     链接失败广播
+     */
+    String ACTION_CONNECT_FAILED = "com.farsunset.cim.CONNECT_FAILED";
+
+    /*
+     链接成功广播
+     */
+    String ACTION_CONNECT_FINISHED = "com.farsunset.cim.CONNECT_FINISHED";
+
+    /*
+     发送sendBody成功后获得replayBody回应广播
+     */
+    String ACTION_REPLY_RECEIVED = "com.farsunset.cim.REPLY_RECEIVED";
+
+    /*
+     网络变化广播
+     */
+    String ACTION_NETWORK_CHANGED = "com.farsunset.cim.NETWORK_CHANGED";
+
+    /*
+     重试连接
+     */
+    String ACTION_CONNECTION_RECOVERY = "com.farsunset.cim.CONNECTION_RECOVERY";
+
+}
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/ProtobufType.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/ProtobufType.java
new file mode 100644
index 0000000..9ebed58
--- /dev/null
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/ProtobufType.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2013-2019 Xia Jun(3979434@qq.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ***************************************************************************************
+ *                                                                                     *
+ *                        Website : http://www.farsunset.com                           *
+ *                                                                                     *
+ ***************************************************************************************
+ */
+package com.farsunset.cim.sdk.android.constant;
+
+public interface ProtobufType {
+
+    /*
+    客户端->服务端 发送的心跳响应
+    */
+    byte PONG = 0;
+
+    /*
+    服务端->客户端 发送的心跳请求
+    */
+    byte PING = 1;
+
+    byte MESSAGE = 2;
+
+    byte SENT_BODY = 3;
+
+    byte REPLY_BODY = 4;
+}
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/RequestKey.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/RequestKey.java
new file mode 100644
index 0000000..a8b8e3d
--- /dev/null
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/RequestKey.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-2019 Xia Jun(3979434@qq.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ***************************************************************************************
+ *                                                                                     *
+ *                        Website : http://www.farsunset.com                           *
+ *                                                                                     *
+ ***************************************************************************************
+ */
+package com.farsunset.cim.sdk.android.constant;
+
+public interface RequestKey {
+
+    String CLIENT_BIND = "client_bind";
+
+    String CLIENT_SET_TAG = "client_set_tag";
+
+    String CLIENT_REMOVE_TAG = "client_remove_tag";
+
+}
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/ServiceAction.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/ServiceAction.java
new file mode 100644
index 0000000..73a5503
--- /dev/null
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/constant/ServiceAction.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2013-2019 Xia Jun(3979434@qq.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ***************************************************************************************
+ *                                                                                     *
+ *                        Website : http://www.farsunset.com                           *
+ *                                                                                     *
+ ***************************************************************************************
+ */
+package com.farsunset.cim.sdk.android.constant;
+
+public interface ServiceAction {
+
+    String ACTION_CREATE_CIM_CONNECTION = "ACTION_CREATE_CIM_CONNECTION";
+
+    String ACTION_DESTROY_CIM_SERVICE = "ACTION_DESTROY_CIM_SERVICE";
+
+    String ACTION_ACTIVATE_PUSH_SERVICE = "ACTION_ACTIVATE_PUSH_SERVICE";
+
+    String ACTION_SEND_REQUEST_BODY = "ACTION_SEND_REQUEST_BODY";
+
+    String ACTION_CLOSE_CIM_CONNECTION = "ACTION_CLOSE_CIM_CONNECTION";
+
+    String ACTION_SET_LOGGER_EATABLE = "ACTION_SET_LOGGER_EATABLE";
+
+    String ACTION_SHOW_PERSIST_NOTIFICATION = "ACTION_SHOW_PERSIST_NOTIFICATION";
+
+    String ACTION_HIDE_PERSIST_NOTIFICATION = "ACTION_HIDE_PERSIST_NOTIFICATION";
+
+    String ACTION_CIM_CONNECTION_PONG = "ACTION_CIM_CONNECTION_PONG";
+
+}
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/Pong.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/Pong.java
index d5ae022..c7534cf 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/Pong.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/Pong.java
@@ -21,7 +21,7 @@
  */
 package com.farsunset.cim.sdk.android.model;
 
-import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.ProtobufType;
 
 import java.io.Serializable;
 
@@ -56,7 +56,7 @@ public class Pong implements Serializable, BinaryBody {
 
     @Override
     public byte getType() {
-        return CIMConstant.ProtobufType.PONG;
+        return ProtobufType.PONG;
     }
 
 }
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/SentBody.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/SentBody.java
index 65d724c..63ebc7d 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/SentBody.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/model/SentBody.java
@@ -21,7 +21,7 @@
  */
 package com.farsunset.cim.sdk.android.model;
 
-import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.ProtobufType;
 import com.farsunset.cim.sdk.android.model.proto.SentBodyProto;
 
 import java.io.Serializable;
@@ -108,7 +108,7 @@ public class SentBody implements Serializable, BinaryBody {
 
     @Override
     public byte getType() {
-        return CIMConstant.ProtobufType.SENT_BODY;
+        return ProtobufType.SENT_BODY;
     }
 
 }
diff --git a/cim-use-examples/cim-client-android/app/build.gradle b/cim-use-examples/cim-client-android/app/build.gradle
index 30523fe..9662cf6 100644
--- a/cim-use-examples/cim-client-android/app/build.gradle
+++ b/cim-use-examples/cim-client-android/app/build.gradle
@@ -34,11 +34,11 @@ android {
 }
 
 dependencies {
-    implementation "com.farsunset:cim-android-sdk:4.2.0"
-    implementation 'androidx.appcompat:appcompat:1.5.0'
-    implementation 'com.google.android.material:material:1.6.1'
-    implementation 'androidx.annotation:annotation:1.3.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation "com.farsunset:cim-android-sdk:4.2.5"
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     implementation 'com.google.protobuf:protobuf-lite:3.0.1'
     implementation 'com.squareup.retrofit2:retrofit:2.9.0'
     implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
diff --git a/cim-use-examples/cim-client-android/app/src/main/java/com/farsunset/cim/activity/LoginActivity.java b/cim-use-examples/cim-client-android/app/src/main/java/com/farsunset/cim/activity/LoginActivity.java
index e47810a..8cec312 100644
--- a/cim-use-examples/cim-client-android/app/src/main/java/com/farsunset/cim/activity/LoginActivity.java
+++ b/cim-use-examples/cim-client-android/app/src/main/java/com/farsunset/cim/activity/LoginActivity.java
@@ -19,6 +19,7 @@ import com.farsunset.cim.sdk.android.CIMEventListener;
 import com.farsunset.cim.sdk.android.CIMListenerManager;
 import com.farsunset.cim.sdk.android.CIMPushManager;
 import com.farsunset.cim.sdk.android.constant.CIMConstant;
+import com.farsunset.cim.sdk.android.constant.RequestKey;
 import com.farsunset.cim.sdk.android.model.Message;
 import com.farsunset.cim.sdk.android.model.ReplyBody;
 import com.farsunset.cim.sdk.android.model.SentBody;
@@ -96,7 +97,7 @@ public class LoginActivity extends AppCompatActivity implements CIMEventListener
         /*
          *第三步 用户id绑定成功，可以接收消息了
          */
-        if (replyBody.getKey().equals(CIMConstant.RequestKey.CLIENT_BIND)) {
+        if (replyBody.getKey().equals(RequestKey.CLIENT_BIND)) {
             ballsView.runaway();
             Intent intent = new Intent(this,MessageActivity.class);
             intent.putExtra("uid",uidEdit.getText().toString().trim());