Change Application Name

To change the app name in a Flutter project for both Android and iOS, you’ll need to update the app’s display name in the project’s configuration files. Here’s how you can do it for both platforms:

Android

In Android, the app name is typically defined in the AndroidManifest.xml file.

Open the android/app/src/main/AndroidManifest.xml file.

Look for the <application> tag and find the android:label attribute. This attribute specifies the app name.

<android:label="Your App Name">

iOS:

In iOS, the app name is defined in the Info.plist file.

• Open the ios/Runner/Info.plist file.
• Find the CFBundleName key and change its value to the desired app name. This key is typically located in a <dict> section under <key>CFBundleName</key>.

<key>CFBundleName</key>
<string>Your App Name</string>

Update the string value with the desired app name.

After making these changes, the app name should be updated for both Android and iOS. Keep in mind that you might need to rebuild and reinstall the app on your devices or emulators for the changes to take effect.

Additionally, make sure to follow any naming conventions or guidelines specific to each platform, especially if you plan to publish your app on app stores.

Change Launcher Logo

To change the application launcher logo (app icon) in a Flutter project, you need to update the app icons for both Android and iOS. Here’s how you can do it for each platform:

Android

In Android, you need to replace the launcher icon in the res directory. Follow these steps:

• Create a set of icons in different sizes for various screen densities (mdpi, hdpi, xhdpi, xxhdpi, xxxhdpi). You can use tools like Android Asset Studio (https://romannurik.github.io/AndroidAssetStudio/) to generate these icons.
• Replace the existing icons in your Flutter project’s android/app/src/main/res directory with your newly created icons. Make sure to replace the icons in all the density-specific folders.
• After replacing the icons, rebuild your Flutter app using flutter build or flutter run. The new launcher icon should appear on the Android home screen.

iOS

In iOS, you need to replace the app icon images in the Assets.xcassets folder. Here’s how:

• Create a set of app icon images in different sizes for various iOS devices. These icons should be in square dimensions (e.g., 60×60, 120×120, 180×180, etc.).
• Open the Xcode project for your Flutter app, which is located in the ios/Runner.xcodeproj directory.
• In Xcode, find the Runner project in the left sidebar and expand it. You will see an asset catalog named Assets.xcassets.
• Inside the Assets.xcassets, locate the “AppIcon” asset set. Delete the existing icons and add your new icons to their respective slots by dragging and dropping.
• After updating the icons in Xcode, rebuild and run your Flutter app. The new app icon should appear on the iOS device’s home screen.

Remember to follow the platform-specific guidelines for app icon sizes and naming conventions. Also, keep in mind that the app icon may have different sizes and shapes for different iOS devices and versions, so you should provide a complete set of icons to ensure your app looks good on all devices.

Change Application id (Package Name)

In Flutter, you can change the application ID (also known as the package name) for both Android and iOS platforms. The application ID uniquely identifies your app in the Google Play Store for Android and the App Store for iOS. Here’s how to change the application ID for both platforms:

Android

To change the application ID for Android, you need to update the android/app/build.gradle file in your Flutter project:

1. Open the android/app/build.gradle file.
2. Locate the defaultConfig block and change the applicationId to your desired new package name. For example:

android {
    defaultConfig {
        applicationId "com.example.newpackage"
        // ...
    }
}

3. Save the changes.
4. You may need to update the MainActivity and other references throughout your Android codebase with the new package name.
5. Rebuild your Flutter app for Android by running flutter build or flutter run. The app will now use the new package name.

iOS

To change the bundle identifier (application ID) for iOS, you need to update the Xcode project settings:

1. Open your Flutter project’s ios/Runner.xcodeproj using Xcode.
2. In Xcode, select the “Runner” target.
3. In the “General” tab, locate the “Bundle Identifier” field and change it to your desired new package name (e.g., com.example.newpackage).
4. Save the changes.
5. You may also need to update any other references to the old bundle identifier in your iOS code.
6. Rebuild your Flutter app for iOS by running flutter build or flutter run. The app will now use the new bundle identifier.

Remember to keep your new package name or bundle identifier consistent across both platforms and update any external services or configurations that may depend on the application ID or bundle identifier. Also, make sure to follow any naming guidelines or requirements set by the respective app stores when publishing your app.

Replace Google map key

In a Flutter application, you typically configure the Google Maps API key in the AndroidManifest.xml file for Android and in the AppDelegate.swift file for iOS. Here’s how you can change the Google Maps API key in these files for both platforms:

For Android (AndroidManifest.xml):

1. Open your Flutter project in Android Studio or your preferred code editor.
2. Navigate to the android/app/src/main directory of your project.
3. Open the AndroidManifest.xml file.
4. Look for the <meta-data> element with the name "com.google.android.geo.API_KEY" inside the <application> tag. This is where your Google Maps API key is defined.
5. Replace the old API key with your new one:

   <meta-data
       android:name="com.google.android.geo.API_KEY"
       android:value="YOUR_NEW_API_KEY_HERE" />
   

6. Save the AndroidManifest.xml file.

For iOS (AppDelegate.swift)

Open your Flutter project in Xcode if you’re using macOS. To open your iOS project in Xcode, navigate to the ios directory of your Flutter project and open the .xcworkspace file with Xcode.

In Xcode, open the AppDelegate.swift file located in the Runner folder.

Search for the function
application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool.

Within this function, look for the code that sets your Google Maps API key. It typically looks like this:

GMSServices.provideAPIKey("YOUR_OLD_API_KEY_HERE")

Replace the old API key with your new one:

GMSServices.provideAPIKey("YOUR_NEW_API_KEY_HERE")

Save the AppDelegate.swift file.

After making these changes, rebuild your Flutter app for both Android and iOS platforms. Ensure you have the new API key properly configured in both AndroidManifest.xml and AppDelegate.swift.

Keep in mind that you may also need to update any packages or plugins that you are using for Google Maps in your Flutter app to ensure compatibility with the new API key. Additionally, monitor your usage and billing in the Google Cloud Console for the new API key to ensure it is used correctly.