Android Build, SDK For Ubuntu 16.04

android_build.sh

sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt-get update
sudo apt-get install openjdk-8-jre

# install openjdk
sudo apt-get install openjdk-8-jdk

# install unzip
sudo apt-get install unzip

# download android sdk
wget https://dl.google.com/android/repository/tools_r25.2.5-linux.zip

mkdir sdk
unzip tools_r25.2.5-linux.zip -d ./sdk

cd sdk/tools

# install all sdk packages
./android update sdk --no-ui

# set path
vi ~/.bash_profile << EOT

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

EOT

cd ~/
mkdir ndk
# install ndk
wget https://dl.google.com/android/repository/android-ndk-r13b-linux-x86_64.zip
unzip android-ndk-r13b-linux-x86_64.zip -d ./ndk

source ~/.bash_profile

# Gradle Update
sudo add-apt-repository ppa:cwchien/gradle
sudo apt-get update
sudo apt-get install gradle-2.14.1

# Most Recent Gradle 
# sudo apt-get install gradle-ppa

# if cannot build, 
# android update sdk --no-ui --all --filter build-tools-25.0.1,android-25,extra-android-m2repository
# replace 25.0.1 to your version

# 약관 동의 안 했다고 나올 때
# android list sdk --all
# android update sdk -u -a -t <package no.>

Android List
https://dl.google.com/android/repository/repository-11.xml

http://stackoverflow.com/questions/39183674/java-lang-nullpointerexception-no-error-message