diff --git a/src/Notes-master/res/layout/floating_window.xml b/src/Notes-master/res/layout/floating_window.xml
new file mode 100644
index 0000000..ec01d80
--- /dev/null
+++ b/src/Notes-master/res/layout/floating_window.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/root_view"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:padding="5dp">
+
+    <ImageView
+        android:id="@+id/iv_floating_ball"
+        android:layout_width="50dp"
+        android:layout_height="50dp"
+        android:src="@drawable/icon_app"
+        android:background="@android:drawable/editbox_background_normal"
+        android:elevation="10dp"
+        android:contentDescription="Quick Note" />
+</FrameLayout>
\ No newline at end of file
diff --git a/src/Notes-master/res/values/styles.xml b/src/Notes-master/res/values/styles.xml
index 89da67c..36cb23f 100644
--- a/src/Notes-master/res/values/styles.xml
+++ b/src/Notes-master/res/values/styles.xml
@@ -92,4 +92,8 @@
     <string name="alert_delete_forever">Delete these notes forever?</string>
 
     <string name="char_count_format">%1$d 字</string>
+
+    <string name="preferences_floating_window_title">全局悬浮球</string>
+    <string name="preferences_floating_window_summary">开启后可在屏幕边缘显示快捷图标，点击立即记录灵感</string>
+    <string name="toast_need_overlay_permission">开启悬浮球需要“显示在其他应用上”的权限，请手动授予</string>
 </resources>
diff --git a/src/Notes-master/res/xml/preferences.xml b/src/Notes-master/res/xml/preferences.xml
index a5703a9..37775f7 100644
--- a/src/Notes-master/res/xml/preferences.xml
+++ b/src/Notes-master/res/xml/preferences.xml
@@ -32,6 +32,11 @@
             android:entries="@array/view_mode_entries"
             android:entryValues="@array/view_mode_values"
             android:defaultValue="0" />
+        <CheckBoxPreference
+            android:key="pref_key_enable_floating"
+            android:title="@string/preferences_floating_window_title"
+            android:summary="@string/preferences_floating_window_summary"
+            android:defaultValue="false" />
     </PreferenceCategory>
 
     <PreferenceCategory android:title="个性化">