huixiang_app/lib/base_state.dart

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

abstract class BaseState<T extends StatefulWidget> extends State<T>
    with WidgetsBindingObserver {
  int lastTime = DateTime.now().millisecondsSinceEpoch;

  @override
  void dispose() {
    super.dispose();
    WidgetsBinding.instance.removeObserver(this);
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    print("-didChangeAppLifecycleState-" + state.toString());
    switch (state) {
      case AppLifecycleState.inactive: // 处于这种状态的应用程序应该假设它们可能在任何时候暂停。
        break;
      case AppLifecycleState.resumed: //从后台切换前台，界面可见
        pushRoute();
        if (DateTime.now().millisecondsSinceEpoch - lastTime > 300000)
          Navigator.of(context).popAndPushNamed('/router/main_page');
        break;
      case AppLifecycleState.paused: // 界面不可见，后台
        lastTime = DateTime.now().millisecondsSinceEpoch;
        break;
      case AppLifecycleState.detached: // APP结束时调用
        break;
    }
  }

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
  }

  pushRoute() async {
    // String startIntent = await Bridge.getStartIntent();
    SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
    // print("intent:$startIntent");
    String pushData = "";
    // if (startIntent != "") {
    //   pushData = startIntent;
    // } else {
    //   pushData = sharedPreferences.getString("pushData") ?? "";
    // }
    if (pushData == "") return;
    Map<String, dynamic> pushMap = jsonDecode(pushData);
    String routeName = "";
    Map<String, dynamic> params = {};
    switch (pushMap["typed"].toString()) {
      case "1":
      case "ARTICLE":
        routeName = "/router/web_page";
        params["articleId"] = pushMap["info"];
        break;
      case "2":
      case "ACTIVITY":
        routeName = "/router/web_page";
        params["activityId"] = pushMap["info"];
        break;
      case "3":
      case "SHOP":
        routeName = "/router/store_order";
        params["id"] = pushMap["info"];
        params["tenant"] = pushMap["tenant"];
        params["storeName"] = pushMap["storeName"];
        break;
      case "4":
      case "CREDIT_GOODS":
        routeName = "/router/integral_store_page";
        params["goodsId"] = pushMap["info"];
        break;
      case "5":
      case "ORDER":
        routeName = "/router/order_details";
        params["id"] = pushMap["info"];
        break;
      case "6":
      case "MEMBER":
        routeName = "/router/community_details";
        params["businessId"] = pushMap["info"];
        break;
      case "8":
      case "WALLET":
        routeName = "/router/mine_wallet";
        params["id"] = pushMap["info"];
        break;
      case "9":
      case "WELFARE":
        routeName = "/router/welfare_page";
        params["id"] = pushMap["info"];
        break;
      case "12":
      case "COUPON":
        routeName = "/router/coupon_page";
        params["id"] = pushMap["info"];
        break;
      case "13":
      case "CATE_BEAN":
        routeName = "/router/trading_card_page";
        params["id"] = pushMap["info"];
        break;
    }
    sharedPreferences.setString("pushData", "");
    print("xgPushClickAction: routeName: $routeName");
    if (routeName != "") {
      Navigator.of(context).pushNamed(routeName, arguments: params);
    }
    }
}