DevMemo

sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer http://webnautes.tistory.com/539

.. set .gitignore git config --global core.excludesfile ~/.gitignore https://codebabes.com/blog/set-gitignore-globally-ignore-files-bad-ass

git checkout -b <branch name> : create branch named  <branch name> from current branch. git checkout -t <remote branch> : create local branch with same name as remote branch named <remote branch>.

public static void deleteRecursive(File fileOrDirectory) { if (fileOrDirectory.isDirectory()) for (File child : fileOrDirectory.listFiles()) deleteRecursive (child); fileOrDirectory.delete(); } ref http://stackoverflow.com/questions/3775694/deleting-folder-from-java

*.so file ->  /[app]/src/main/jniLibs http://hiho-developer.hatenablog.com/entry/20150101/1420119169

xxxx.so has text relocations. This is wasting memory and is a security risk. Please fix. ndk bug. use  ndk-r8c or later. http://stackoverflow.com/questions/20141538/mylib-so-has-text-relocations-this-is-wasting-memory-and-is-a-security-risk-pl

* Android Studio download url http://developer.android.com/intl/ko/sdk/index.html * install java and setting http://stackoverflow.com/questions/17033726/android-studio-error-after-studio-sh * remove open java sdk and download from oracle (Kr) https://opentutorials.org/module/516/5558