Michael's Android Lesson

1. Android Studio - Introduction
Michael Pan

2. Why Android Studio
Most advanced IDE
Google Official support
Current version 0.51
Hi, I am Android Studio

3. Download
http://developer.android.com/sdk/installing/studio.html

4. Open & Launch

5. New Project

6. Blank Activity

7. Activity & Layout

8. Waiting

9. Overview

10. Project View

11. Editor View

12. Editor Tab - File name

13. Import folders & files
src/
main/
java/
res/
layout/
values/
AndroidManifest.xml

14. UI Layout - activity_record.xml

15. UILayout - Design

16. Design View
Components
Preview Hierarchy
Attributes

17. Create a new Class - Project Window

18. Source

19. Record.java
public class Record {!
String description;!
int type;!
int cost;!
}

20. How about getter & setter
Android Studio Tool

21. Record.java
public class Record {!
String description;!
int type;!
int cost;!
!
public String getDescription() {!
return description;!
}!
!
public void setDescription(String description) {!
this.description = description;!
}!
}

22. Repeat steps on other fields

23. But how about naming convention
public class Record {!
String mDescription;!
int mType;!
int mCost;!
}

24. Getter & Setter
public class Record {!
String mDescription;!
int mType;!
int mCost;!
!
public String getmDescription() {!
return mDescription;!
}!
!
public void setmDescription(String mDescription) {!
this.mDescription = mDescription;!
}!
}
Not good

25. Preferences - Code Style -> Java

26. Code Generation

27. Generate it again
public class Record {!
String mDescription;!
int mType;!
int mCost;!
!
public String getDescription() {!
return mDescription;!
}!
!
public void setDescription(String description) {!
mDescription = description;!
}!
}

28. Run the Emulator
Create Emulator first
Reference http://developer-s-note-blog.logdown.com/posts/98744-hello-
android-studio

29. Start Genymotion

30. Run the app

31. Hello World

32. 開發者選項
設定
點擊 Build Number 7 次
出現開發者項⺫⽬目

33. USB Debugging Enable

34. Question