miniprogramme/utils/system-info.js

// 系统信息工具类 - 使用新API替换废弃的wx.getSystemInfoSync
class SystemInfoUtil {
  constructor() {
    this.systemInfo = null;
    this.windowInfo = null;
    this.deviceInfo = null;
    this.appBaseInfo = null;
  }

  // 初始化系统信息
  async init() {
    try {
      // 使用新的API获取系统信息
      const [windowInfo, deviceInfo, appBaseInfo] = await Promise.all([
        this.getWindowInfo(),
        this.getDeviceInfo(), 
        this.getAppBaseInfo()
      ]);

      this.windowInfo = windowInfo;
      this.deviceInfo = deviceInfo;
      this.appBaseInfo = appBaseInfo;

      // 合并为兼容的systemInfo格式
      this.systemInfo = {
        ...windowInfo,
        ...deviceInfo,
        ...appBaseInfo
      };

      console.log('系统信息初始化完成:', this.systemInfo);
      return this.systemInfo;
    } catch (error) {
      console.error('系统信息初始化失败:', error);
      // 兜底使用旧API
      this.systemInfo = wx.getSystemInfoSync();
      return this.systemInfo;
    }
  }

  // 获取窗口信息
  getWindowInfo() {
    return new Promise((resolve, reject) => {
      try {
        const windowInfo = wx.getWindowInfo();
        resolve(windowInfo);
      } catch (error) {
        reject(error);
      }
    });
  }

  // 获取设备信息
  getDeviceInfo() {
    return new Promise((resolve, reject) => {
      try {
        const deviceInfo = wx.getDeviceInfo();
        resolve(deviceInfo);
      } catch (error) {
        reject(error);
      }
    });
  }

  // 获取应用基础信息
  getAppBaseInfo() {
    return new Promise((resolve, reject) => {
      try {
        const appBaseInfo = wx.getAppBaseInfo();
        resolve(appBaseInfo);
      } catch (error) {
        reject(error);
      }
    });
  }

  // 获取系统适配信息
  getSystemAdaptInfo() {
    if (!this.systemInfo) {
      console.warn('系统信息未初始化，使用同步API');
      this.systemInfo = wx.getSystemInfoSync();
    }

    const menuButtonInfo = wx.getMenuButtonBoundingClientRect();
    
    // 状态栏高度
    const statusBarHeight = this.systemInfo.statusBarHeight || 0;
    
    // 胶囊按钮信息
    const menuButtonHeight = menuButtonInfo.height;
    const menuButtonTop = menuButtonInfo.top;
    const menuButtonBottom = menuButtonInfo.bottom;
    
    // 导航栏高度 = 胶囊按钮底部 + 胶囊按钮顶部到状态栏的距离
    const navBarHeight = menuButtonBottom + menuButtonTop - statusBarHeight;
    
    // 窗口高度
    const windowHeight = this.systemInfo.windowHeight || this.systemInfo.screenHeight;
    
    // 安全区域
    const safeAreaBottom = this.systemInfo.safeArea ? 
      this.systemInfo.screenHeight - this.systemInfo.safeArea.bottom : 0;
    
    return {
      systemInfo: this.systemInfo,
      statusBarHeight,
      menuButtonHeight,
      menuButtonTop,
      navBarHeight,
      windowHeight,
      safeAreaBottom
    };
  }

  // 获取性能信息
  getPerformanceInfo() {
    return {
      platform: this.systemInfo?.platform || 'unknown',
      version: this.systemInfo?.version || 'unknown',
      SDKVersion: this.systemInfo?.SDKVersion || 'unknown',
      benchmarkLevel: this.systemInfo?.benchmarkLevel || 0
    };
  }
}

// 创建单例
const systemInfoUtil = new SystemInfoUtil();

module.exports = systemInfoUtil;