flutter-sport/lib/widgets/game_run.dart

import 'dart:io';
import 'package:device_apps/device_apps.dart' as app;
import 'package:android_intent/android_intent.dart';
import 'package:android_intent/flag.dart';
import 'package:flutter/material.dart';
import 'package:sport/utils/toast.dart';
import 'package:sport/widgets/button_primary.dart';


Future startRun(BuildContext context) async {
  var package = "com.ouj.hiyd";
  var componentName = "com.ouj.hiyd.SplashActivity_";

  if (Platform.isAndroid) {
    var sport = await app.DeviceApps.getApp(package);
    if(sport == null) {
      ToastUtil.show("你还没安装 Hi运动 app");
      return;
    }
    AndroidIntent intent = AndroidIntent(
        action: "android.intent.action.MAIN",
        package: package,
        componentName: componentName,
        flags: [
          Flag.FLAG_ACTIVITY_NEW_TASK
        ],
        arguments: {

        });
    intent.launch();
  }
}

class GameRun extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      behavior: HitTestBehavior.opaque,
      onTap: () {},
      child: Row(
        children: <Widget>[
          Container(
            width: 50.0,
            height: 50.0,
            margin: const EdgeInsets.all(12.0),
            child: Image.asset("lib/assets/img/home_game_run.png"),
          ),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text(
                  "跑步训练",
                  style: Theme.of(context).textTheme.subtitle1.copyWith(fontSize: 16.0, fontWeight: FontWeight.w600),
                ),
                SizedBox(
                  height: 3,
                ),
                Text("125514人在练", style: Theme.of(context).textTheme.bodyText1, maxLines: 1),
                SizedBox(
                  height: 6,
                )
              ],
            ),
          ),
          Padding(
            padding: const EdgeInsets.all(12.0),
            child: PrimaryButton(
              width: 93,
              height: 35,
              content: "开始跑步",
              callback: () {
                startRun(context);
              },
            ),
          )
        ],
      ),
    );
  }
}