Easy Steps: Flutter Apk Size Reducing || Icon generator || App rename

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Example : #1[ Basic Commands ]

flutter build apk --build-name=1.0.1 --build-number=2

flutter clean

flutter build appbundle --target-platform android-arm,android-arm64

flutter build appbundle --target-platform android-arm,android-arm64,android-x64.

For splitting the apks, we run the command

flutter build apk --split-per-abi.

This should reduce the app size significantly.

Finaly we can use below one command

flutter build apk

We can reduce the apk size by splitting it for required ABIs

flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi

Debug

keytool -list -v -alias androiddebugkey -keystore C:\Users\sapan\.android\debug.keystore

Happy coding :)
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Example : #2[ how to generate a release apk for Android in Flutter ]

More info

https://flutter.dev/docs/deployment/android

1. Generate keystore

Every app needs to be digitally signed by its own keystore ( .jks file) before being uploaded to Google or Apple.

Run the project directory/root project following command to generate your keystore on Windows

keytool -genkey -v -keystore C:\Users\sapan\.android\key.jks -storetype JKS -keyalg RSA -keysize 2048 -validity 10000 -alias key

2. Create keystore properties file

Create a new file {project-root}/android/key.properties

storePassword=<password from previous step>

keyPassword=<password from previous step>

keyAlias=key

storeFile=<location of the key store file, such as /Users/<user name>/key.jks>

Note : / slash in very importance.

or use \\

3. Update build.gradle

1. Set compileSdkVersion, minSdkVersion , and targetSdkVersion to 29. See the documentation for correct Android versioning

2. Open {project-root}/android/app/build.gradle

Note - Add code before android block

   def keystoreProperties = new Properties()
   def keystorePropertiesFile = rootProject.file('key.properties')
   if (keystorePropertiesFile.exists()) {
       keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
   }

4. With the signing configuration info

signingConfigs {

release {

keyAlias keystoreProperties['keyAlias']

keyPassword keystoreProperties['keyPassword']

storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null

storePassword keystoreProperties['storePassword']

}

buildTypes {

release {

signingConfig signingConfigs.release

}

5. Build and upload APK to Google Play

Run this in command line in your project root flutter clean && flutter build appbundle --release, this could take up to 10 minutes, don't freak out.

Note - √ Built build\app\outputs\bundle\release\app-release.aab (15.4MB).

or reduce apk only

flutter build apk --split-per-abi

Note √ Built build\app\outputs\flutter-apk\app-armeabi-v7a-release.apk (5.1MB).

flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi

Note - √ Built build\app\outputs\flutter-apk\app-armeabi-v7a-release.apk (5.1MB).

or flutter build apk --analyze-size --target-platform android-arm64

C:\Users\sapan\Desktop\Flutter\login_demo\build\app\outputs\flutter-apk

Common Error
1.

2. Gradle version ( like classpath )

3. release key instead of debug key

4. INTERNET permission
5. clearCache permission

In build.gradle:

// Put this in your buildtypes debug section:

manifestPlaceholders = [usesCleartextTraffic:"true"]

// Put this in your buildtypes release section

manifestPlaceholders = [usesCleartextTraffic:"false"]

In the application tag in AndroidManifest.xml

android:usesCleartextTraffic="${usesCleartextTraffic}"

6. multidexEnabled true
7. min sdk 29

8. cd android && gradlew signinReport // debug key generates

9. package name should be unique

10.

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

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

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

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

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

11. Create Flutter Project For AppStores - Package Name & Bundle Identifier

12. Note -

was url launchar does not work on android 11 by If you donot add this line in manifest.xml

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

</intent>

</intent>

</intent>

</queries>

....

</application>

</manifest>

13.

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Default

How to create project with organisation way

Happy coding :)

official doc

https://flutter.dev/docs/deployment/android

Go to Google play developer console and open it

https://play.google.com/apps/publish

click the create app button

Enter the app name and continue..

Upload apk

Add Countries

Dashboards

App access

Ads

Content rating

Next and submit

Target audience

Select app category and provide contact details

Set up your store listing

Publishing overview

Published App Url

https://play.google.com/store/apps/details?id=com.sapan.codemagicdemo

Happy Coding :)

Check out the Given below one links

https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html#foreground.type=clipart&foreground.clipart=android&foreground.space.trim=1&foreground.space.pad=0.25&foreColor=rgba(96%2C%20125%2C%20139%2C%200)&backColor=rgb(68%2C%20138%2C%20255)&crop=0&backgroundShape=square&effects=none&name=ic_launcher

Click the Image Tab and upload the image