Android Development Learning--day3

Learn more about the process of Android development

Four important components of Android app: 1.Activity 2.Service 3.Content Provider 4.Broadcast Receiver

As for activity activities, each activity has a window screen and corresponding program code to handle the interaction between the user and the window.

When developing an Android app, plan the total window footage you need, and then design the program logic for each screen

The design process of the Android program is to design the program code and resources separately.

The visual design of Android is described by XML, and the program code is written in Java.

The code section is stored under the Java path, and the layout XML is stored in the Res/layout directory

Layout and code build up and eventually form a complete program

Androidmanifest.xml the activity to start at the beginning of the recording program

Android Development Learning--day3