To make a simple diary —— use common widget likes TextView、EditLine、RecylerView...and combine GreenDao to save the data.
use some widget —— Fragment、AutoCompleteTextView、SearchManger；
use some type of Dialog —— AlertDialog、DatePickerDialog、ProgressDialog
use some type of menu —— Options menu、Content menu、Submenu、ActionBar
Try to use log print some information about program and experience the Life cycle.
Use Intent and Bundle to send the data into another activity.
LinerLayout、RelativeLayout、FrameLayout and PrecantLayout,but the PrecantLayout is temporary not successful .
some text for common widget,like TextView,Button,ImageView,EditView,AlerDialog and so on.
To create the first activity and use Toast、Menu in the activity. And then destroy the activity.
Experience the Activity Life Cycle by a Test.
To create the first activity and use Toast、Menu in the activity. And then destroy the activity.
The first Android program and learn how to use git to save the code.
