flutter_app_icons 0.0.5

Dynamic App Icon, for a beginning this will only be for web favicon, because there is no way to change that with flutter, for later it is intended that we support app icons on Android and iOS.

flutter_app_icons

Dynamic App Icon, with flutter. You can use this plugin to change your favicon programatically from your flutter code. You can also use it to change your Android application icon during runtime.

Web Version

Web version is pretty simple, just create FlutterAppIcons object.

final _flutterAppIconsPlugin = FlutterAppIcons();

Then wherever you want to change favicon, call the function

_flutterAppIconsPlugin.setIcon(icon: 'favicon.png');

Android version

Android is a bit more complicated here are the steps:

Step 1:

Update AndroidManifest.xml main activity:

<category android:name="android.intent.category.LEANBACK_LAUNCHER"/> <!-- remove LAUNCHER, make it LEANBACK_LAUNCHER -->

Step 2:

Add activity-alias for the icons you want to use:

Notice, that favicon-failure.png was replaced by favicon.failure.png, because this should be a correct java class name, you just have to worry about this in the AndroidManifest.xml

    <activity-alias android:label="flutter_app_icons_example"
           android:icon="@mipmap/ic_launcher_f_round"
           android:name=".favicon.png"
           android:exported="true"
           android:enabled="false"
           android:targetActivity=".MainActivity">
           <intent-filter>
               <action android:name="android.intent.action.MAIN" />
               <category android:name="android.intent.category.LAUNCHER" />
           </intent-filter>
       </activity-alias>
       <activity-alias android:label="flutter_app_icons_example"
           android:icon="@mipmap/ic_launcher"
           android:name=".favicon.failure.png"
           android:exported="true"
           android:enabled="true"
           android:targetActivity=".MainActivity">
           <intent-filter>
               <action android:name="android.intent.action.MAIN" />
               <category android:name="android.intent.category.LAUNCHER" />
           </intent-filter>
       </activity-alias>

Step 3:

Now like the web version, you create a FlutterAppIcons object.

final _flutterAppIconsPlugin = FlutterAppIcons();

Then wherever you want to change your android application icon, call the function, with 1 difference, you have to tell the function which one was activated as follows

_flutterAppIconsPlugin.setIcon(icon: 'favicon.png', oldIcon: 'favicon-failure.png');

Step 4:

Now this is the most complicated, Flutter doesn't see activity-alias, and since we remove LAUNCHER from the main activity, flutter won't accept running your code. What you have to do is open android/src/main/(java OR kotlin)/your_package_name/ClassName. Once you open this in your android studio, you will see a notification at the top "Open for Editing In Android Studio", click it and then from there run / publish do whatever you want with your app.

Check the live demo on youtube:

https://youtu.be/PA4eLP3kIRc

I am still in the process of finding a workaround for this, but for the time being I didn't find it.