I have used the https://pub.dev/packages/flutter_launcher_icons to generate my app icons. My pubspec.yaml is like this,
dependencies:
flutter_launcher_icons: ^0.8.0
flutter_icons:
android: "launcher_icon"
ios: true
image_path: "assets/icons/appIcon.png"
And my AndroidManifest.xml is
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.max.test_flutter_appppp">
<!-- io.flutter.app.FlutterApplication is an android.app.Application that
calls FlutterMain.startInitialization(this); in its onCreate method.
In most cases you can leave this as-is, but you if you want to provide
additional functionality it is fine to subclass or reimplement
FlutterApplication and put your custom class here. -->
<application
android:name="io.flutter.app.FlutterApplication"
android:label="test_flutter_appppp"
android:icon="@mipmap/launcher_icon">
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="@drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>
The app launcher icon is updated correctly but at certain places, the default flutter icon is shown. Please see the screenshots below ,
The App icon is correctly shown in home screen but inside Settings/RecentApps and during installation, the default flutter icon is shown.
My Phone is Poco f1 and its running Android 10.
I suggest trying this website out to convert your images to App icons. In my personal experience, it has been great and seems to be the easiest way to change your app icon. Just go to this link https://appicon.co/ and upload your image. Select the devices you want to generate the icons for and download the archive.
Android
Then just go and copy all the folders (the mipmap stuff) in the
android
folder from the downloaded archive inyour project\android\app\src\main\res\
iOS
Then just go and copy the
Assets.xcassets
from the downloaded archive inyour project\ios\Runner\
and override the existing one there.P.S. The converter also generates icons for Play Store and App Store.