setup-rn.sh

#!/bin/bash -i
# using shebang with -i to enable interactive mode (auto load .bashrc)

set -e #stop immediately if any error happens

# Install Open SDK
sudo apt-get update
sudo apt-get install openjdk-8-jdk -y
sudo update-java-alternatives --set java-1.8.0-openjdk-amd64
java -version

# create sdk folder
export ANDROID_HOME=~/opt/androidsdk
if [ -d "$ANDROID_HOME" ]; then sudo rm -Rf $ANDROID_HOME; fi
echo $ANDROID_HOME
mkdir -p $ANDROID_HOME

# Install SDK Manager
# you can find this file at https://developer.android.com/studio/index.html#downloads - section command line only
cd ~ && wget https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip
sudo apt-get install unzip -y && unzip sdk-tools-linux-4333796.zip -d $ANDROID_HOME
rm sdk-tools-linux-4333796.zip

# Install gradle
sudo apt-get install gradle

# Install avd
yes | $ANDROID_HOME/tools/bin/sdkmanager "platform-tools" "system-images;android-25;google_apis;armeabi-v7a" "emulator"
yes | $ANDROID_HOME/tools/bin/sdkmanager "system-images;android-25;google_apis;armeabi-v7a"
# install all sdk packages
# $ANDROID_HOME/android update sdk --no-ui

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echo "export ANDROID_HOME=$ANDROID_HOME" >> ~/.bashrc
echo 'export SDK=$ANDROID_HOME' >> ~/.bashrc
echo 'export PATH=$SDK/emulator:$SDK/tools:$SDK/tools/bin:$SDK/platform-tools:$PATH' >> ~/.bashrc
source ~/.bashrc

emulator -version

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# stop emulators
adb devices | grep emulator | cut -f1 | while read line; do adb -s $line emu kill; done

# download script thalt helps in telling if emulator has started
# https://raw.githubusercontent.com/travis-ci/travis-cookbooks/master/community-cookbooks/android-sdk/files/default/android-wait-for-emulator
wget --quiet --output-document=android-wait-for-emulator https://raw.githubusercontent.com/travis-ci/travis-cookbooks/0f497eb71291b52a703143c5cd63a217c8766dc9/community-cookbooks/android-sdk/files/default/android-wait-for-emulator
chmod +x android-wait-for-emulator

# create virtual device, default using (API Level 25)
echo no | avdmanager create avd -f -n avd28 -k "system-images;android-25;google_apis;armeabi-v7a"

# start the emulator
emulator -avd avd28 -no-audio -no-window -no-boot-anim & ./android-wait-for-emulator

# show connected virtual device(s)
adb devices

echo "INSTALL ANDROID SDK DONE!"