diff --git a/miniprogram/app.ts b/miniprogram/app.ts
index 25d3d1e..4fbb5a2 100644
--- a/miniprogram/app.ts
+++ b/miniprogram/app.ts
@@ -1,5 +1,46 @@
 // app.ts
 App<IAppOption>({
-  globalData: {},
-  onLaunch() {},
+  globalData: {
+    navBarHeight: 0, // 导航栏总高度
+    navBarContentHeight: 0, // 胶囊那一栏的高度（不含状态栏）
+    statusBarHeight: 0, // 状态栏高度
+    menuRight: 0, // 胶囊右边距
+    menuTop: 0, // 胶囊顶部距离
+    menuHeight: 0, // 胶囊高度
+    tabbarHeight: 0, // 底部导航栏高度
+    safeAreaBottom: 0, // 底部安全区域坐标
+    safeAreaInsetBottom: 0, // 中间区域内容的底边坐标
+    system: '', // 系统信息
+    token: '',
+  },
+  onLaunch() {
+    // 1. 获取胶囊按钮位置信息
+    const menuButtonInfo = wx.getMenuButtonBoundingClientRect()
+
+    // 2. 获取系统窗口信息
+    const windowInfo = wx.getWindowInfo()
+    const deviceInfo = wx.getDeviceInfo()
+
+    // 赋值基础信息
+    this.globalData.system = deviceInfo.system
+    this.globalData.menuRight = windowInfo.screenWidth - menuButtonInfo.right
+    this.globalData.menuTop = menuButtonInfo.top
+    this.globalData.menuHeight = menuButtonInfo.height
+    this.globalData.statusBarHeight = windowInfo.statusBarHeight
+    this.globalData.safeAreaBottom = windowInfo.safeArea.bottom
+
+    // 计算导航栏内容区域高度(不含状态栏)
+    // 解释：(胶囊上边距 - 状态栏高度) 是胶囊距离状态栏的间隙，上下各有一个间隙，所以 * 2
+    const gap = menuButtonInfo.top - windowInfo.statusBarHeight
+    const navContentHeight = menuButtonInfo.height + gap * 2
+    this.globalData.navBarContentHeight = navContentHeight
+
+    // 计算导航栏+手机状态栏高度
+    // 计算公式：导航栏高度 = 状态栏高度 + (胶囊上边距 - 状态栏高度) * 2 + 胶囊高度
+    this.globalData.navBarHeight = windowInfo.statusBarHeight + navContentHeight
+
+    // 计算底部小黑条高度 (屏幕高度 - 安全区域底部坐标)
+    const safeAreaInsetBottom = windowInfo.screenHeight - windowInfo.safeArea.bottom
+    this.globalData.safeAreaInsetBottom = safeAreaInsetBottom
+  },
 })
diff --git a/typings/index.d.ts b/typings/index.d.ts
index 232d149..1e43cfc 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -3,8 +3,18 @@
 
 interface IAppOption {
   globalData: {
+    navBarHeight: number,
+    navBarContentHeight: number,
+    statusBarHeight: number,
+    menuRight: number,
+    menuTop: number,
+    menuHeight: number,
+    tabbarHeight: number,
+    safeAreaBottom: number,
+    safeAreaInsetBottom: number
+    system: string,
+    token: string
     userInfo?: WechatMiniprogram.UserInfo
-    token?: string
   }
   userInfoReadyCallback?: WechatMiniprogram.GetUserInfoSuccessCallback
 }