How to build, install, and execute the android app using the android SDK

1. Get the example of the app widget:

svn checkout http://wiktionary-android.googlecode.com/svn/trunk/ wiktionary-android-read-only

2. Intsall the eclipse 3.4 and ADT Plugin:

wget http://eclipse.stu.edu.tw/eclipse/downloads/drops/R-3.4-200806172000/eclipse-SDK-3.4-linux-gtk.tar.gz

Follow the instructions of "http://developer.android.com/sdk/1.5_r3/installing.html#installingplugin" to install the ADT Plugin for Eclipse.

3. Set the "PATH":

export PATH=/home/qustion/Qualcomm/android/eclipse:/opt/jdk1.6.0_10/bin:/home/qustion/Qualcomm/android/android-sdk-linux_x86-1.5_r3/tools:$PATH


Also, we can add the following statements into ~/.bash_profile:

PATH=/home/qustion/Qualcomm/android/eclipse:/opt/jdk1.6.0_10/bin:/home/qustion/Qualcomm/android/android-sdk-linux_x86-1.5_r3/tools:$PATH

export PATH

If we want the bash under the gnome-termial to execute the ~/.bash_profile, we must select the "Edit->Current Profile->Title and Command->Command " as "Run command as a login shell" .

4. Remove the old project directionary of eclipse and the old user directionary of android emulator :
rm -fr ~/workspace/
rm -fr ~/.android/

5. Create the android virtual device (name:qustion, platform version:1.5) and launch the emulator:
android create avd -n qustion -t 2
emulator @qustion &


6. Execute the eclipse ,import the example of the app widget to create the eclipse project, and install the example into the emulator:

eclipse &

Set "Window->Preferences->Android->SDK Location" to
"/home/qustion/Qualcomm/android/android-sdk-linux_x86-1.5_r3"
and then press "Apply".

File->New->Android Project->Create Project from existing source

Project->Clean

Run->Run

We can see the follwoing messages on the console (buid the example "Wiktionary" ):

[2009-08-05 10:24:15 - LookupActivity] Android Launch!
[2009-08-05 10:24:15 - LookupActivity] adb is running normally.
[2009-08-05 10:24:15 - LookupActivity] Performing com.example.android.wiktionary.LookupActivity activity launch
[2009-08-05 10:24:15 - LookupActivity] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD 'qustion'
[2009-08-05 10:24:15 - LookupActivity] Application already deployed. No need to reinstall.
[2009-08-05 10:24:15 - LookupActivity] Starting activity com.example.android.wiktionary.LookupActivity on device
[2009-08-05 10:24:18 - LookupActivity] ActivityManager: Starting: Intent { comp={com.example.android.wiktionary/com.example.android.wiktionary.LookupActivity}

7. How to execute the app widget:

在Android emulator桌面長壓約3秒，出現一個選單，裡有一個選項"Widgets"，點選進去後就可以看到"Wiktionary"，再點選他，之後在桌面就可以看到一個home screen app widget名叫 "Wiktionary"，他顯示"http://en.wiktionary.org/wiki/Wiktionary:Main_Page"的"Word of the day "

Reference:

http://android-developers.blogspot.com/2009/04/introducing-home-screen-widgets-and.html
http://developer.android.com/guide/developing/eclipse-adt.html
http://www.jollen.org/blog/2009/07/jollen-android-programming-19.html

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