1. install
? ? ? stp1: download JDK、 SDK 、 AndroidStudio
? ?JDK= java development kit ?( AS base on java environment)
? ?SDK=xxxx kit ( use for android program kit)
? ?AndroidStudio
? ? ?stp2: first install JDK
? ? ? ? ? ? ? ?second install AS
? ? ? ? ? ? ? ?Third with AS , SDK manager , choose SDK with option
? ? ? stp3: run!!
2. learn
? ? ? 2.1. create project : ( android system construction the same as iOS , ?present layer, ?application layer, resource layer ( with media, pics, content), basic layer ( with driver and sth.)
? ? ? 2.2. activity : ?every thing you view in android program is a activity.
? ? ? 2.3. create and use view/ editText / ?step: create layout file, ?inside create main_activity.xml ( all the?
position and character can be put into here ) => create activity.java ( you can edit your java program to give some fuction or method to make the unit in xml to be “ fun!” => register all your add, especially the?
activity in your manifest.xml with “<xx> </> “ ( some thing like that ) , after that you can running your program in simulator.
3.intent
? ? ? ? ? ?intent is a kind of method help you to transfer, shift between 2 or several activity.
? ? ? ? ? ?For example: If you want to make a register page.?
? ? ? ? ? ?U entered the username and the password. U push the button, and shift to the 2nd page.
? ? ? ? ? ?you want to keep the username & password from 1st page to 2nd page. you use intent.
4. About Java & class.
Java alway use “.xxx” (class) to act an action to an object.?
for example. ? ? ? ? ?button.onClickListener() ? ?=> we give button object on action, to listen it if it is clicked.
