glocore/Instructions.md

## Instructions.md

      
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              Instructions.md
            
          
    1. Install Node.js


Follow the steps given here to install Node.js and NPM.
Verify whether NPM is installed by typing npm -v in a terminal window.

2. Install React Native CLI


npm install -g react-native-cli

3. Setup Android Development Environment


Download and install Android Studio as explained here.


Run Android Studio and open the SDK Manager. Under the SDK Platforms tab, check Show Package Details, expand Android 6.0 (Marshmallow) and check the following:

Google APIs
Android SDK Platform 23
Intel x86 Atom_64 System Image
Google APIs Intel x86 Atom_64 System Image


Under the SDK Tools tab, check Show Package Details, expand Android SDK Build Tools and check 23.0.1.


Click Apply to install all the selected packages.


Open a terminal window and type sudo gedit ~/.profile


Add the following lines to the end of the file:
export ANDROID_HOME=${HOME}/Android/Sdk
export PATH=${PATH}:${ANDROID_HOME}/tools
export PATH=${PATH}:${ANDROID_HOME}/platform-tools


Type source ~/.profile in your terminal to load the config into your current shell.


In Android Studio, open AVD Manager and click Create Virtual Device


Follow the setup wizard and give your device an appropriate name (you will need this name everytime you start the emulator through the command line, so make it short and simple). Click on Finish to create the Virtual Device.


If you set the Emulated Performance setting to Software, you will be able to run the emulator, but the performance will be very sluggish. Hence it is recommended to configure VM hardware acceleration.


4. Configure VM acceleration


Install cpu-checker: sudo apt-get install cpu-checker
Check for KVM compatibility: kvm-ok
If the output is says:
INFO: /dev/kvm exists
KVM acceleration can be used

it means that your computer can be configured for VM acceleration.
Follow the steps given in this Ubuntu documentation in order to configure KVM.
Install lib64stdc++6 and mesa-demos:
apt-get install lib64stdc++6:i386 mesa-utils
Rename libstdc++.so.6 to libstdc++.so.6.bak:
 cd ~/Android/Sdk/emulator/lib64/libstdc++`
`mv libstdc++.so.6 libstdc++.so.6.bak


Start the emulator:
cd ~/Android/Sdk/tools
./emulator @foo

replace foo with the name of your device. This should start your Android Emulator in VM accelerated mode.

5. Create and run a React Native application


Create a new React Native project: react-native init HelloWorld
Navigate to your project directory and type: npm start
In another terminal window, navigate to the project directory and type: react-native run-android