Android Configuration

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Open Android module in Android Studio

Open Android Studio.
Select Open an existing Android Studio Project.
Open the android directory within your app.
Wait until the project has been synced successfully. (This happens automatically once you open the project, but if it doesn’t, select Sync Project with Gradle Files from the File menu).
Now, click on Run button.

Change Application Name

You must want to change your application name. This is how you can do. Follow the below step.
Open /android/app/src/main/AndroidManifest.xml and specify your application name.

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application
        android:name="io.flutter.app.FlutterApplication"
        android:label="YOUR_APPLICATION_NAME"
        android:icon="@mipmap/ic_launcher">
        <activity

Change Application Icon

See How to generate an application icon?
Browse your image and click on Download icon. After successfully generated, replace all icons in respective folders:

/mipmap-hdpi in /android/app/src/main/res/ folder
/mipmap-mdpi in /android/app/src/main/res/ folder
/mipmap-xhdpi in /android/app/src/main/res/ folder
/mipmap-xxhdpi in /android/app/src/main/res/ folder
/mipmap-xxxhdpi in /android/app/src/main/res/ folder

Important:

Application icon name must be ic_launcher

Change Application ID

Follow the below steps to change you Application ID.
Open /android/app/build.gradle

    defaultConfig {
        applicationId "YOUR_APPLICATION_ID"
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 1
        versionName "1.0.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

Generate Signed APK

Go to your project -> Tools -> Flutter -> Open for Editing in Android Studio as shown below

If the Open Android module in Android Studio is not viewed in Tools->Flutter then goto File->Open and open your project’s android folder in another window.

Open Project in New Window
Wait for a while until project synchronization. After that Go to Build -> GenerateSigned Bundle/APK…

Select Android App Bundle or APK Option as per your need. (Android App Bundle is best solution) and click Next button.

Select Create new.. option to generate new Signed key (When you release your app First Time) and Fill all options. Refer this link

Click Next button and you will get following screen…

Select Build variants – release and Signature versions both V1 and V2 respectively as shown above screen shot and click Finish button

Wait for a while until Gradle Build Running process complete and finally you will get the Generate Signed APK : (APKs) generated successfully . from that click on Locate option to get Location of your Generate Signed APK Key.

Android Configuration

Open Android module in Android Studio

Change Application Name

Change Application Icon

Important:

Change Application ID

Generate Signed APK

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