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Description:

flutter app icons

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();
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Then wherever you want to change favicon, call the function
_flutterAppIconsPlugin.setIcon(icon: 'favicon.png');
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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"/> 
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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>
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Step 3: #
Now like the web version, you create a FlutterAppIcons object.
final _flutterAppIconsPlugin = FlutterAppIcons();
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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');
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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.