diff --git a/other/MainActivity.java b/other/MainActivity.java
new file mode 100644
index 0000000..0b82cd7
--- /dev/null
+++ b/other/MainActivity.java
@@ -0,0 +1,36 @@
+package net.micode.notes;
+
+import android.os.Bundle;
+
+import androidx.activity.EdgeToEdge;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // 启用边缘到边缘显示支持，允许内容延伸到屏幕刘海、状态栏和导航栏区域
+        EdgeToEdge.enable(this);
+
+        // 设置Activity的布局为activity_main.xml
+        setContentView(R.layout.activity_main);
+
+        // 为ID为main的根视图设置窗口插入监听，处理系统窗口装饰区域
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
+            // 获取系统栏（状态栏、导航栏等）的插入区域
+            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
+
+            // 设置根视图的内边距，确保内容不会被系统栏遮挡
+            // 四个方向的内边距分别对应左、上、右、下系统栏的尺寸
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
+
+            // 返回处理后的窗口插入对象
+            return insets;
+        });
+    }
+}
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