diff --git a/AndroidManifest-common.xml b/AndroidManifest-common.xml
index e032b2f..90168ed 100644
--- a/AndroidManifest-common.xml
+++ b/AndroidManifest-common.xml
@@ -36,6 +36,7 @@
         android:permissionGroup="android.permission-group.SYSTEM_TOOLS"
         android:protectionLevel="dangerous" />
 
+    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
     <uses-permission android:name="android.permission.CALL_PHONE" />
     <uses-permission android:name="android.permission.SET_WALLPAPER" />
     <uses-permission android:name="android.permission.SET_WALLPAPER_HINTS" />
diff --git a/build.gradle b/build.gradle
index 5a4a7df..f8bc9b6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -65,12 +65,14 @@ android {
     defaultConfig {
         minSdkVersion 26
         targetSdkVersion 28
+
         //MTK
         versionCode 13
         versionName "2.2"
 //        //cube
 //        versionCode 36
 //        versionName "4.5"
+
         ndk {
             //选择要添加的对应 cpu 类型的 .so 库。
             abiFilters 'armeabi', 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
diff --git a/src/com/aoleyun/os/Launcher.java b/src/com/aoleyun/os/Launcher.java
index b2d52b7..99b7771 100644
--- a/src/com/aoleyun/os/Launcher.java
+++ b/src/com/aoleyun/os/Launcher.java
@@ -1289,7 +1289,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
                 if (appPasswdBeans != null) {
                     for (AppPasswdBean bean : appPasswdBeans) {
                         Log.e(TAG, "removeRecentTask: " + bean.getApp_package());
-                        Utils.removeTask(bean.getApp_package());
+                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+                            Utils.removeTask(bean.getApp_package());
+                        }
                     }
                 }
             }
diff --git a/src/com/aoleyun/os/model/LoaderTask.java b/src/com/aoleyun/os/model/LoaderTask.java
index cc0af73..7ea2cbc 100644
--- a/src/com/aoleyun/os/model/LoaderTask.java
+++ b/src/com/aoleyun/os/model/LoaderTask.java
@@ -316,18 +316,18 @@ public class LoaderTask implements Runnable {
         final List<UserHandle> profiles = mUserManager.getUserProfiles();
         String whiteList = Settings.System.getString(crv, JGYActions.ACTION_JGY_SHORTCUTLIST);
         Log.e("verifyApplications", "whiteList: " + whiteList);
+        int aihuaUnlock = Settings.Global.getInt(context.getContentResolver(), "Aihua_unlock_state", 0);
+        Log.e(TAG, "verifyApplications: aihuaUnlock = " + aihuaUnlock);
         for (UserHandle user : profiles) {
             final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
             ArrayList<InstallShortcutReceiver.PendingInstallShortcutInfo> added = new ArrayList<InstallShortcutReceiver.PendingInstallShortcutInfo>();
             synchronized (this) {
-
                 for (LauncherActivityInfo app : apps) {
                     Log.e("verifyApplications", "AllAPP: " + app.getApplicationInfo().packageName);
                     if (BuildConfig.APPLICATION_ID.equals(app.getApplicationInfo().packageName))
                         continue;
                     /*系统应用*/
-                    int aihuaUnlock = Settings.Global.getInt(context.getContentResolver(), "Aihua_unlock_state", 0);
-                    if (JGYUtils.getInstance().getDeviceIsLocked() || aihuaUnlock == 1) {
+                    if (JGYUtils.getInstance().getDeviceIsLocked() && aihuaUnlock != 1) {
                         if ((app.getApplicationFlags() & ApplicationInfo.FLAG_SYSTEM) == 1) {
                             if (!showApp.contains(app.getApplicationInfo().packageName)) {
                                 Log.e("verifyApplications", "skip1: " + app.getApplicationInfo().packageName);
diff --git a/src/com/aoleyun/os/uiuiutils/Utils.java b/src/com/aoleyun/os/uiuiutils/Utils.java
index c35baeb..beda636 100644
--- a/src/com/aoleyun/os/uiuiutils/Utils.java
+++ b/src/com/aoleyun/os/uiuiutils/Utils.java
@@ -4,6 +4,7 @@ import android.annotation.SuppressLint;
 import android.app.ActivityManager;
 import android.app.ActivityManagerNative;
 import android.app.ActivityTaskManager;
+import android.app.IActivityTaskManager;
 import android.content.Context;
 import android.content.pm.UserInfo;
 import android.os.Build;
@@ -99,9 +100,10 @@ public class Utils {
      */
     public static List<ActivityManager.RecentTaskInfo> getRecentTasks(int numTasks, int userId) {
         try {
-            return ActivityTaskManager.getService().getRecentTasks(numTasks,
+            IActivityTaskManager iActivityTaskManager = ActivityTaskManager.getService();
+            return iActivityTaskManager.getRecentTasks(numTasks,
                     RECENT_IGNORE_UNAVAILABLE, userId).getList();
-        } catch (RemoteException e) {
+        } catch (Exception e) {
             Log.e(TAG, "Failed to get recent tasks " + e);
             return new ArrayList<>();
         }