1.Mac OS X configuration environment variable
for average users, we usually recommend modifying ~/.bash_profile to set environment variables, which are user level settings that are valid only for the current user.
1, open Terminal (terminal)
2, enter: sudo, VIM,.Bash_profile
3, set PATH:export PATH=$PATH:/Users/username/Library/Android/sdk/platform-tools/
5, the modification takes effect immediately: source ~/.bash_profile
6 to see the value of the environment variable: echo $PATH
note: 1, there is a dot ~/.bash_profile in
2, if you add new environment variables or modify the values of environment variables, you need source to take effect immediately,.
3, if you want to delete an environment variable, you must enter exit to logout the current shell, and then reopen a new shell, and the login can take effect,.
2. Android studio http:// tools.android.com/download/studio/canary
3. installs plug-ins db_idea, Android, butterknife, zelezny, Parcelable, gsonformat, and other
4. learning the basic command of Gradle
The gradle version