diff --git a/app/src/main/java/org/lsposed/manager/adapters/ScopeAdapter.java b/app/src/main/java/org/lsposed/manager/adapters/ScopeAdapter.java
index 798fea86..a94d67a9 100644
--- a/app/src/main/java/org/lsposed/manager/adapters/ScopeAdapter.java
+++ b/app/src/main/java/org/lsposed/manager/adapters/ScopeAdapter.java
@@ -44,7 +44,6 @@ import android.text.style.StyleSpan;
 import android.text.style.TypefaceSpan;
 import android.util.Log;
 import android.view.Menu;
-import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
diff --git a/app/src/main/java/org/lsposed/manager/ui/activity/MainActivity.java b/app/src/main/java/org/lsposed/manager/ui/activity/MainActivity.java
index 51b89081..fcb2f03f 100644
--- a/app/src/main/java/org/lsposed/manager/ui/activity/MainActivity.java
+++ b/app/src/main/java/org/lsposed/manager/ui/activity/MainActivity.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.activity;
 
 import android.annotation.SuppressLint;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/AppListFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/AppListFragment.java
index 618e243b..915ded4f 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/AppListFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/AppListFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import android.content.Intent;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/BaseFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/BaseFragment.java
index 46798e50..56796209 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/BaseFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/BaseFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import android.view.View;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/HomeFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/HomeFragment.java
index cc499de0..bfba5861 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/HomeFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/HomeFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import android.os.Build;
@@ -9,7 +28,6 @@ import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.core.text.HtmlCompat;
-import androidx.navigation.NavOptions;
 
 import com.bumptech.glide.Glide;
 import com.google.android.material.snackbar.Snackbar;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/ModulesFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/ModulesFragment.java
index a697462d..556c98f7 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/ModulesFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/ModulesFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import static android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/RepoFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/RepoFragment.java
index 4ba17c32..6d73fced 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/RepoFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/RepoFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import android.os.Bundle;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/RepoItemFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/RepoItemFragment.java
index 5161a973..812ed843 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/RepoItemFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/RepoItemFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import android.os.Bundle;
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java
index 06a92412..00fed6c5 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.fragment;
 
 import android.Manifest;
diff --git a/app/src/main/java/org/lsposed/manager/ui/widget/EmptyStateRecyclerView.java b/app/src/main/java/org/lsposed/manager/ui/widget/EmptyStateRecyclerView.java
index 75a80080..cd49ba07 100644
--- a/app/src/main/java/org/lsposed/manager/ui/widget/EmptyStateRecyclerView.java
+++ b/app/src/main/java/org/lsposed/manager/ui/widget/EmptyStateRecyclerView.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.manager.ui.widget;
 
 import android.content.Context;
diff --git a/app/src/main/java/org/lsposed/manager/util/NavUtil.java b/app/src/main/java/org/lsposed/manager/util/NavUtil.java
index b465e480..9ed0994a 100644
--- a/app/src/main/java/org/lsposed/manager/util/NavUtil.java
+++ b/app/src/main/java/org/lsposed/manager/util/NavUtil.java
@@ -26,8 +26,6 @@ import android.net.Uri;
 import androidx.browser.customtabs.CustomTabColorSchemeParams;
 import androidx.browser.customtabs.CustomTabsIntent;
 
-import org.lsposed.manager.ui.activity.base.BaseActivity;
-
 import rikka.core.res.ResourcesKt;
 import rikka.core.util.ResourceUtils;
 
diff --git a/app/src/main/java/org/lsposed/manager/util/chrome/CustomTabsURLSpan.java b/app/src/main/java/org/lsposed/manager/util/chrome/CustomTabsURLSpan.java
index ccc57e9b..927ac914 100644
--- a/app/src/main/java/org/lsposed/manager/util/chrome/CustomTabsURLSpan.java
+++ b/app/src/main/java/org/lsposed/manager/util/chrome/CustomTabsURLSpan.java
@@ -24,7 +24,6 @@ import android.app.Activity;
 import android.text.style.URLSpan;
 import android.view.View;
 
-import org.lsposed.manager.ui.activity.base.BaseActivity;
 import org.lsposed.manager.util.NavUtil;
 
 public class CustomTabsURLSpan extends URLSpan {
diff --git a/app/src/main/java/org/lsposed/manager/util/chrome/LinkTransformationMethod.java b/app/src/main/java/org/lsposed/manager/util/chrome/LinkTransformationMethod.java
index 196f33c1..bf3a3b36 100644
--- a/app/src/main/java/org/lsposed/manager/util/chrome/LinkTransformationMethod.java
+++ b/app/src/main/java/org/lsposed/manager/util/chrome/LinkTransformationMethod.java
@@ -29,8 +29,6 @@ import android.text.style.URLSpan;
 import android.view.View;
 import android.widget.TextView;
 
-import org.lsposed.manager.ui.activity.base.BaseActivity;
-
 public class LinkTransformationMethod implements TransformationMethod {
 
     private final Activity activity;
diff --git a/app/src/main/res/drawable/ic_baseline_add_24.xml b/app/src/main/res/drawable/ic_baseline_add_24.xml
index eb232541..74fcafe8 100644
--- a/app/src/main/res/drawable/ic_baseline_add_24.xml
+++ b/app/src/main/res/drawable/ic_baseline_add_24.xml
@@ -1,3 +1,22 @@
+<!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
diff --git a/app/src/main/res/drawable/ic_baseline_arrow_back_24.xml b/app/src/main/res/drawable/ic_baseline_arrow_back_24.xml
index e9a2ed45..801a1dea 100644
--- a/app/src/main/res/drawable/ic_baseline_arrow_back_24.xml
+++ b/app/src/main/res/drawable/ic_baseline_arrow_back_24.xml
@@ -1,3 +1,22 @@
+<!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
diff --git a/app/src/main/res/layout-sw600dp/fragment_main.xml b/app/src/main/res/layout-sw600dp/fragment_main.xml
index d3b6af42..e0f33ff2 100644
--- a/app/src/main/res/layout-sw600dp/fragment_main.xml
+++ b/app/src/main/res/layout-sw600dp/fragment_main.xml
@@ -1,3 +1,22 @@
+<!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 3080eb78..1b79ff76 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index f57b156d..2e1bb577 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -1,4 +1,23 @@
-<?xml version="1.0" encoding="utf-8"?><!-- Adding the same root's ID for view binding as other layout configurations -->
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
+<!-- Adding the same root's ID for view binding as other layout configurations -->
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/navigation/nav_graph.xml b/app/src/main/res/navigation/nav_graph.xml
index 01457f96..9d7ddf8d 100644
--- a/app/src/main/res/navigation/nav_graph.xml
+++ b/app/src/main/res/navigation/nav_graph.xml
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
 <navigation xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/nav_graph"
diff --git a/app/src/main/res/navigation/sub_nav_graph.xml b/app/src/main/res/navigation/sub_nav_graph.xml
index f5c3cfe3..145e4048 100644
--- a/app/src/main/res/navigation/sub_nav_graph.xml
+++ b/app/src/main/res/navigation/sub_nav_graph.xml
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of LSPosed.
+  ~
+  ~ LSPosed is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ LSPosed is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+  ~
+  ~ Copyright (C) 2021 LSPosed Contributors
+  -->
+
 <navigation xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/nav_graph_details"
diff --git a/core/src/main/java/org/lsposed/lspd/service/LSPSystemServerService.java b/core/src/main/java/org/lsposed/lspd/service/LSPSystemServerService.java
index c3616582..a242df52 100644
--- a/core/src/main/java/org/lsposed/lspd/service/LSPSystemServerService.java
+++ b/core/src/main/java/org/lsposed/lspd/service/LSPSystemServerService.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.lspd.service;
 
 import static org.lsposed.lspd.service.ServiceManager.TAG;
diff --git a/core/src/main/java/org/lsposed/lspd/service/PowerService.java b/core/src/main/java/org/lsposed/lspd/service/PowerService.java
index 67bcf12b..82b863e3 100644
--- a/core/src/main/java/org/lsposed/lspd/service/PowerService.java
+++ b/core/src/main/java/org/lsposed/lspd/service/PowerService.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.lspd.service;
 
 import static org.lsposed.lspd.service.ServiceManager.TAG;
diff --git a/core/src/main/java/org/lsposed/lspd/util/Logger.java b/core/src/main/java/org/lsposed/lspd/util/Logger.java
index e070f405..102ef378 100644
--- a/core/src/main/java/org/lsposed/lspd/util/Logger.java
+++ b/core/src/main/java/org/lsposed/lspd/util/Logger.java
@@ -1,3 +1,22 @@
+/*
+ * <!--This file is part of LSPosed.
+ *
+ * LSPosed is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LSPosed is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2021 LSPosed Contributors-->
+ */
+
 package org.lsposed.lspd.util;
 
 import android.util.Log;