AppCheck
A Flutter plugin that allows you to check if an app is installed/enabled, launch an app and get the list of installed apps.
Installation
First, add appcheck as a dependency in your pubspec.yaml file.
Methods available
- checkAvailability(String uri)
- isAppInstalled(String uri)
- getInstalledApps()(only for Android)
- isAppEnabled(String uri)(only for Android)
- launchApp(String uri)
Permissions
Before using the plugin, you need to add declarations in your configuration files.
Android
If you want to use the getInstalledApps() function, you need the QUERY_ALL_PACKAGES permission.
<uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />
If you only want to check certain apps and you know the packageName, add them via queries in AndroidManifest.xml.
<queries>
   <package android:name="com.google.android.apps.maps"/>
</queries>
iOS
Make sure your Info.plist file includes the necessary URL schemes under LSApplicationQueriesSchemes to check and launch other apps:
<key>LSApplicationQueriesSchemes</key>
<array>
    <string>scheme1</string>
    <string>scheme2</string>
    <!-- Add more schemes as needed -->
</array>
Example:
<key>LSApplicationQueriesSchemes</key>
<array>
    <string>fb</string>
    <string>twitter</string>
    <string>instagram</string>
    <string>whatsapp</string>
    <string>youtube</string>
    <string>comgooglemaps</string>
    <string>http</string>
    <string>https</string>
    <string>mailto</string>
    <!-- Add more schemes as needed -->
</array>
Check out Example.
Screenshots
   
  