diff --git a/app/src/main/java/com/motse/fengshui_compass/ui/home/HomeViewModel.java b/app/src/main/java/com/motse/fengshui_compass/ui/home/HomeViewModel.java
index 4a26a1c..82a7839 100644
--- a/app/src/main/java/com/motse/fengshui_compass/ui/home/HomeViewModel.java
+++ b/app/src/main/java/com/motse/fengshui_compass/ui/home/HomeViewModel.java
@@ -16,6 +16,7 @@ public class HomeViewModel extends ViewModel {
     private final MutableLiveData<Float> rotation;
     RotateThread rotateThread;
     private Handler handler;
+    private Handler serialThreadHandle;
 
     public HomeViewModel() {
         handler = new Handler(Looper.getMainLooper()) {
@@ -28,8 +29,6 @@ public class HomeViewModel extends ViewModel {
         };
         rotation = new MutableLiveData<>();
         rotation.setValue((float) 0);
-//        rotateThread = new RotateThread(handler);
-//        rotateThread.start();
     }
 
     public void initThread() {
diff --git a/app/src/main/res/drawable/arrow.png b/app/src/main/res/drawable/arrow.png
new file mode 100644
index 0000000..d5152cc
Binary files /dev/null and b/app/src/main/res/drawable/arrow.png differ
diff --git a/app/src/main/res/drawable/bg.png b/app/src/main/res/drawable/bg.png
new file mode 100644
index 0000000..94f88af
Binary files /dev/null and b/app/src/main/res/drawable/bg.png differ
diff --git a/app/src/main/res/drawable/bg1.png b/app/src/main/res/drawable/bg1.png
new file mode 100644
index 0000000..f5aa9a1
Binary files /dev/null and b/app/src/main/res/drawable/bg1.png differ
diff --git a/app/src/main/res/drawable/clodeside.png b/app/src/main/res/drawable/clodeside.png
new file mode 100644
index 0000000..ce3148e
Binary files /dev/null and b/app/src/main/res/drawable/clodeside.png differ
diff --git a/app/src/main/res/drawable/closeup.png b/app/src/main/res/drawable/closeup.png
new file mode 100644
index 0000000..b422339
Binary files /dev/null and b/app/src/main/res/drawable/closeup.png differ
diff --git a/app/src/main/res/drawable/head.png b/app/src/main/res/drawable/head.png
new file mode 100644
index 0000000..85f62de
Binary files /dev/null and b/app/src/main/res/drawable/head.png differ
diff --git a/app/src/main/res/drawable/openside.png b/app/src/main/res/drawable/openside.png
new file mode 100644
index 0000000..fc57a3b
Binary files /dev/null and b/app/src/main/res/drawable/openside.png differ
diff --git a/app/src/main/res/drawable/openup.png b/app/src/main/res/drawable/openup.png
new file mode 100644
index 0000000..7e6ee73
Binary files /dev/null and b/app/src/main/res/drawable/openup.png differ
diff --git a/app/src/main/res/drawable/pan.png b/app/src/main/res/drawable/pan.png
new file mode 100644
index 0000000..ab6e6d8
Binary files /dev/null and b/app/src/main/res/drawable/pan.png differ
diff --git a/app/src/main/res/drawable/range_input.png b/app/src/main/res/drawable/range_input.png
new file mode 100644
index 0000000..034b0fa
Binary files /dev/null and b/app/src/main/res/drawable/range_input.png differ
diff --git a/app/src/main/res/drawable/water.png b/app/src/main/res/drawable/water.png
new file mode 100644
index 0000000..489bbc0
Binary files /dev/null and b/app/src/main/res/drawable/water.png differ
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 06ea6ca..2fc53b5 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -4,7 +4,7 @@
     android:id="@+id/container"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:paddingTop="?attr/actionBarSize">
+    android:paddingTop="0dp">
 
     <com.google.android.material.bottomnavigation.BottomNavigationView
         android:id="@+id/nav_view"
diff --git a/app/src/main/res/layout/fragment_home.xml b/app/src/main/res/layout/fragment_home.xml
index 46d5286..377da88 100644
--- a/app/src/main/res/layout/fragment_home.xml
+++ b/app/src/main/res/layout/fragment_home.xml
@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="@drawable/bg"
     tools:context=".ui.home.HomeFragment">
 
     <ImageView