Android App Checker Flutter Plugin

The Android App Checker Flutter Plugin is a Flutter plugin that allows you to retrieve information about an Android app installed on a device. You can use this plugin to fetch details such as the app's name, version name, and version code.

Installation

To use this plugin in your Flutter project, you need to follow these steps:

1. Add the following dependency to your project's pubspec.yaml file:

YAML

dependencies:
  android_app_checker: ^1.0.0]

2. Import the plugin into your Dart file:

Dart

import 'package:android_app_checker/android_app_checker.dart';

3. To get the version information of an app, call the getAppVersion() method with the package name of the app:

Dart

Future<Map<String, String>> getAppVersion(String packageName) async {
  final MethodChannel channel = MethodChannel('android_app_checker');
  final Map<String, String> result = await channel.invokeMethod('getAppVersion', {
    'package_name': packageName,
  });
  return result;
}

The getAppVersion() method returns a Future that resolves to a map of app information. The map will contain the following keys:

• app_name: The name of the app.

• version_name: The version name of the app.

• version_code: The version code of the app.

4. To use the app version information, you can access it using the keys in the map returned by the getAppVersion() method. For example, to get the app name, you would use the following code:

Dart

final appName = versionInfo['app_name'];

Here is an example of how to use the android_app_checker plugin in a Flutter app to get the version information of the app with the package name com.example.target_app:

Dart

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('App Version Checker Example'),
        ),
        body: Center(
          child: ElevatedButton(
            onPressed: () async {
              final versionInfo = await getAppVersion('com.example.target_app');

              if (versionInfo.containsKey('error')) {
                print('Error: ${versionInfo['error']}.');
              } else {
                print('App Name: ${versionInfo['app_name']}.');
                print('Version Name: ${versionInfo['version_name']}.');
                print('Version Code: ${versionInfo['version_code']}.');
              }
            },
            child: Text('Check App Version'),
          ),
        ),
      ),
    );
  }
}

When you run the app and tap the "Check App Version" button, the app will print the version information of the app with the package name com.example.target_app to the console.

Checking if an App is Installed

To check if an app is installed on the device, you can use the following code:

import 'package:android_app_checker/android_app_checker.dart';

Future<bool> isAppInstalled(String packageName) async {
  final MethodChannel channel = MethodChannel('android_app_checker');
  final bool isInstalled = await channel.invokeMethod('isAppInstalled', {
    'package_name': packageName,
  });
  return isInstalled;
}

To use this code, simply pass the package name of the app you want to check to the isAppInstalled() method. The method will return a Future that resolves to a bool value. If the app is installed on the device, the Future will resolve to true. Otherwise, the Future will resolve to false.

Here is an example of how to use the isAppInstalled() method:

final packageName = "com.example.target_app";

final isInstalled = await isAppInstalled(packageName);

if (isInstalled) {
  print("The app is installed.");
} else {
  print("The app is not installed.");
}