diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheManager.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheManager.java
index 43adefa..110aad1 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheManager.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheManager.java
@@ -53,6 +53,11 @@ class CIMCacheManager {
 
     public static final String CONTENT_URI = "content://%s.cim.provider";
 
+    static final String COLUMN_KEY  = "key";
+
+    static final String COLUMN_VALUE  = "value";
+
+
 
     public static void remove(Context context, String key) {
         ContentResolver resolver = context.getContentResolver();
@@ -63,8 +68,8 @@ class CIMCacheManager {
 
         ContentResolver resolver = context.getContentResolver();
         ContentValues values = new ContentValues();
-        values.put("value", value);
-        values.put("key", key);
+        values.put(COLUMN_KEY, key);
+        values.put(COLUMN_VALUE, value);
         resolver.insert(Uri.parse(String.format(CONTENT_URI, context.getPackageName())), values);
 
     }
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheProvider.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheProvider.java
index 12f074d..3ca00ca 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheProvider.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMCacheProvider.java
@@ -33,7 +33,7 @@ public class CIMCacheProvider extends ContentProvider {
 
     @Override
     public int delete(Uri arg0, String key, String[] arg2) {
-        getContext().getSharedPreferences(MODEL_KEY, Context.MODE_PRIVATE).edit().remove(key).apply();
+        getContext().getSharedPreferences(MODEL_KEY, Context.MODE_PRIVATE).edit().remove(key).commit();
         return 0;
     }
 
@@ -44,9 +44,9 @@ public class CIMCacheProvider extends ContentProvider {
 
     @Override
     public Uri insert(Uri arg0, ContentValues values) {
-        String key = values.getAsString("key");
-        String value = values.getAsString("value");
-        getContext().getSharedPreferences(MODEL_KEY, Context.MODE_PRIVATE).edit().putString(key, value).apply();
+        String key = values.getAsString(CIMCacheManager.COLUMN_KEY);
+        String value = values.getAsString(CIMCacheManager.COLUMN_VALUE);
+        getContext().getSharedPreferences(MODEL_KEY, Context.MODE_PRIVATE).edit().putString(key, value).commit();
         return null;
     }
 
@@ -57,7 +57,7 @@ public class CIMCacheProvider extends ContentProvider {
 
     @Override
     public Cursor query(Uri arg0, String[] arg1, String key, String[] arg3, String arg4) {
-        MatrixCursor cursor = new MatrixCursor(new String[]{"value"});
+        MatrixCursor cursor = new MatrixCursor(new String[]{CIMCacheManager.COLUMN_VALUE});
         String value = getContext().getSharedPreferences(MODEL_KEY, Context.MODE_PRIVATE).getString(arg1[0], null);
         cursor.addRow(new Object[]{value});
         return cursor;
diff --git a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMListenerManager.java b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMListenerManager.java
index 8f0a4e2..f459f36 100644
--- a/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMListenerManager.java
+++ b/cim-client-sdk/cim-android-sdk/src/main/java/com/farsunset/cim/sdk/android/CIMListenerManager.java
@@ -27,16 +27,16 @@ import com.farsunset.cim.sdk.android.model.Message;
 import com.farsunset.cim.sdk.android.model.ReplyBody;
 import com.farsunset.cim.sdk.android.model.SentBody;
 
-import java.util.ArrayList;
-import java.util.Collections;
 import java.util.Comparator;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 /**
  * CIM 消息监听器管理
  */
 public class CIMListenerManager {
 
-    private static final ArrayList<CIMEventListener> cimListeners = new ArrayList<>();
+    private static final List<CIMEventListener> cimListeners = new CopyOnWriteArrayList<>();
     private static final ReceiveComparator comparator = new ReceiveComparator();
 
     private CIMListenerManager() {
@@ -47,7 +47,7 @@ public class CIMListenerManager {
 
         if (!cimListeners.contains(listener)) {
             cimListeners.add(listener);
-            Collections.sort(cimListeners,comparator);
+            cimListeners.sort(comparator);
         }
     }
 
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 6d8bd1b..1d598a7 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
@@ -118,9 +118,7 @@ public class CIMPushService extends Service {
 
         String action = newIntent.getAction();
 
-        if (!persistHolder.get()) {
-            createTransientNotification();
-        }
+        createTransientNotification(newIntent);
 
         if (ServiceAction.ACTION_CREATE_CIM_CONNECTION.equals(action)) {
             this.prepareConnect(newIntent.getLongExtra(BundleKey.KEY_DELAYED_TIME, 0));
@@ -221,10 +219,6 @@ public class CIMPushService extends Service {
     @Override
     public void onDestroy() {
         super.onDestroy();
-        release();
-    }
-
-    private void release() {
 
         connectHandler.removeMessages(0);
 
@@ -246,13 +240,18 @@ public class CIMPushService extends Service {
 
     }
 
-    private void createTransientNotification() {
+    private void createTransientNotification(Intent intent) {
 
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O || persistHolder.get()) {
             return;
         }
 
 
+        if (ServiceAction.ACTION_SHOW_PERSIST_NOTIFICATION.equals(intent.getAction())
+                || ServiceAction.ACTION_HIDE_PERSIST_NOTIFICATION.equals(intent.getAction())) {
+            return;
+        }
+
         if (notificationManager.getNotificationChannel(PERSIST_NTC_CHANNEL_ID) != null) {
 
             int icon = CIMCacheManager.getInt(this,CIMCacheManager.KEY_NTC_CHANNEL_ICON);
@@ -272,11 +271,13 @@ public class CIMPushService extends Service {
             channel.enableVibration(false);
             channel.setSound(null, null);
             notificationManager.createNotificationChannel(channel);
+
+            Notification notification = makeNotification(TRANSIENT_NTC_CHANNEL_ID,0,CIMPushService.class.getSimpleName(),null);
+
+            startForeground(NOTIFICATION_ID,  notification);
+
         }
 
-        Notification notification = makeNotification(TRANSIENT_NTC_CHANNEL_ID,0,CIMPushService.class.getSimpleName(),null);
-
-        startForeground(NOTIFICATION_ID,  notification);
 
     }