Category Archives: Android

Useful flutter resources

Flutter is Google’s mobile app SDK for crafting high-quality native interfaces on iOS and Android in record time. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.
Top articles for flutter
Flutter – SQFLITE (SQLITE) + MVP Architecture + Login App Tutorial
Building a news app
Login animation
Flutter – Build Material Chat App | Frenzy Chat For Android & iOS | Design
Best Video Tutorials Of Flutter To Develop Application For Android & ios
Music Player in Flutter
Weather forecast with rain app in Flutter
Complete Guide to Flutter: How to Build a Real World App
Flutter: Building a WhatsApp Clone from scratch | UI | Material Design
Building a List in Redux with Dart’s Flutter Framework
Flutter – MVP Architecture | Design Pattern | Dependency Injection | Flavors | Demo
Flutter — Container Cheat Sheet

Install Flutter on Linux

Flutter Logo

Image Credit: Google

As per Flutter documentation you should fulfill below requirement to run Flutter development environment on your machine.

  • Operating Systems: Linux (64-bit)
  • Disk Space: 600 MB (does not include disk space for IDE/tools).
  • Tools: Flutter depends on these command-line tools being available in your environment.
    • bashmkdirrmgitcurlunzipwhich

Install Flutter SDK

Flutter is currently in Beta, you can download latest version of Flutter from this url
While writing this article, the current version is 0.3.2 beta
Go to directory where you want to extract the file. For example I want to extract this in my Documents directory.

Now run below command to extract the file in the current directory

To be able to run flutter command from terminal we need to add it to our path.

This will temporarily add flutter to path, we need to make it permanent so that it will be available on restart also.

To check if it has been added to path

You should see the flutter path in the output.

Flutter comes with a handy doctor command through which you can see if all dependencies have been installed or not on your computer to run a flutter development environment.

You can upgrade flutter by running

Setup Android Studio

You should have android studio installed on your machine. To install the latest version of it, visit

Configure Text Editors

Refer this link to setup Flutter in Android Studio –

To setup flutter in Visual Studio Code, refer this link

Setup Device to run the application (From

To prepare to run and test your Flutter app on an Android device, you’ll need an Android device running Android 4.1 (API level 16) or higher.

  1. Enable Developer options and USB debugging on your device. Detailed instructions are available in the Android documentation.
  2. Windows-only: Install the Google USB Driver
  3. Using a USB cable, plug your phone into your computer. If prompted on your device, authorize your computer to access your device.
  4. In the terminal, run the flutter devices command to verify that Flutter recognizes your connected Android device.
  5. Start your app by running flutter run.

By default, Flutter uses the version of the Android SDK where your adb tool is based. If you want Flutter to use a different installation of the Android SDK, you must set the ANDROID_HOME environment variable to that installation directory.

Set up the Android emulator

To prepare to run and test your Flutter app on the Android emulator, follow these steps:

  1. Enable VM acceleration on your machine.
  2. Launch Android Studio>Tools>Android>AVD Manager and select Create Virtual Device.
  3. Choose a device definition and select Next.
  4. Select one or more system images for the Android versions you want to emulate, and select Next. An x86 or x86_64 image is recommended.
  5. Under Emulated Performance, select Hardware – GLES 2.0 to enable hardware acceleration.
  6. Verify the AVD configuration is correct, and select Finish.For details on the above steps, see Managing AVDs.
  7. In Android Virtual Device Manager, click Run in the toolbar. The emulator starts up and displays the default canvas for your selected OS version and device.
  8. Start your app by running flutter run. The connected device name is Android SDK built for <platform>, where platform is the chip family, such as x86.

React Native showing default screen even after code modification

If you are building a React Native application for Android by running

and you are still getting the default React native screen,

follow below steps to fix this issue.

1.Create assets directory in android/app/src/main

2. Clear your build cache by running below command from root of your application

3. After this run

4. Now build the application by running, you should see the changes


Android Splash Screen

To add Splash Screen to you android application








Android Studio – Unable to run mksdcard SDK tool

When I was installing Android Studio on Ubuntu this error occurred which halted the installation

It happened twice and I thought sharing this might help others. It got resolved by running following command.



JDK Required: ‘tools.jar’ seems to be not in Studio classpath

I was installing android studio on ubuntu and come across this error.

After lots of searching I found this simple soutuion that worked for me.

This is caused by having JAVA JRE installed as opposed to JAVA JDK. Installing JDK resolve the problem.


Android – Command not found (Ubuntu)

If you encounter this error, it indicates that your environment variables are not properly set. We will add these environment variables by editing “.profile” file present in your home directory.

If you have installed android sdk through Android Studio, it is likely to be present in /home/your_user_name/Android/sdk, otherwise in /home/your_user_name/android-sdk-linux.

If you have installed it through android studio then add following line in your “.profile” file
export ANDROID_HOME=$HOME/your_user_name/Android/sdk

else add this

$ export ANDROID_HOME=~/android-sdk-linux

Then add the paths to the platform-tools and tools sub-directories

export PATH=$ANDROID_HOME/platform-tools:$PATH

You should now be able to run android from the shell. Note that you might need to reopen the terminal to make it work