How to Change App Icon and App Name for Android & iOS
Step 1
Create a new directory and paste ur app icon in it.
step 1
open pubspec.yaml fileand paste these lines
dev_dependencies:
flutter_launcher_icons: "^0.13.1"
flutter_launcher_icons:
android: "launcher_icon"
ios: true
image_path: "assets/icon/icon.png"
min_sdk_android: 21
step 2
open terminal and paste these line one by one
1. flutter pub get
2.flutter pub run flutter_launcher_icons