chapter 2.3
A few objects are defined in the Android SDK that every developer needs
to be familiar with. The most important ones are activities, intents,
services
, and content providers.
Activities
An activity is a user interface screen
. Applications can define one or
more activities to handle different phases of the program.
Intents
An intent is a mechanism for describing a specific action, such as “pick
a photo,” “phone home,” or “open the pod bay doors.” In Android, just
about everything goes through intents, so you have plenty of opportunities
to replace or reuse components.
Services
Content Providers
3.4
there is error when edit main.xml?
adugment of the layout: the size of button,the position of the button
debug:
HOW install doc and source code for the SDK
how to upgrade to AD2.2?
如何快速查找doc?
abd的使用:sdk/tools,通过cmd窗口运行,例如上传一个文件:
adb push a.mp4 /data
chapter5
Min SDK Version: 8 ??
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