http://blog.springsource.org/2010/12/17/spring-android-and-maven-part-1/

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* Spring Android Showcase
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Introduction
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This project requires set up of the Android SDK, command line tools, Maven, the Maven Android Plugin, and Android Maven artifacts such as Spring dependencies. This document walks step by step through that setup.


Development Environment
-----------------------
The Android SDK is required for developing Android applications. Google provides command line tools, and an Eclipse plugin for building Android applications, however you are not restricted to only those options.
The Maven Android Plugin makes use of the Android SDK command line tools to compile and deploy the app to the emulator, so there is no need for a separate IDE setup or configuration.


Install the Android SDK
-----------------------
Download the correct version of the Android SDK for your operating system from the Android web site:
http://developer.android.com/sdk/index.html

Unzip the archive and place it in a location of your choosing. For example on a Mac, you may want to place it in the root of your user directory.  See the download web site for additional installation details.

Add Android to your Path
Example: a .bash_profile on a Mac:
$ export ANDROID_HOME=~/android-sdk-mac_x86
$ export PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools


Install Android SDK Platform
----------------------------
The Android SDK download does not include any specific Android platform SDKs. In order to run the sample code you need to download and install the Android 2.3.1 SDK Platform (API Level 10).  You accomplish this by using the Android SDK and AVD Manager that was installed from the previous step.

Open the Android SDK and AVD Manager window:
$ android
Note: if this command does not open the Android SDK and AVD Manager, then your path is not configured correctly.
Select Available packages from the left hand column
Select the checkbox for Android Repository in the main window
Select SDK Platform Android 2.3.3, API 10, revision 1
Click the Install Selected button to complete the download and installation.
Note: you may want to simply install all the available updates, but be aware it will take longer, as each SDK level is a sizable download.


Configure an Android Virtual Device
-----------------------------------
http://developer.android.com/guide/developing/tools/avd.html
Open the Android SDK and AVD Manager window:
$ android
Select Virtual devices in the left hand column and click the New button
Enter 10 in the Name field
Select Android 2.3.3 API Level 10 in the Target selector
Click Create AVD to finish
Note: The sample application is configured to look for an AVD with the name "10". Otherwise, you can name the AVD whatever you like. Using "10" for the name simply is a visual indicator of which API level it uses.


Build and Run the Server app
----------------------------
$ cd spring-android-showcase/server
$ mvn clean install
Deploy the .war to a Servlet 2.5 or > ServletContainer.  This can be done via Maven on the command-line by running:
$ mvn tomcat:run
Make sure the server is running on application context
/spring-android-showcase-server


Build and Run the Android Client
--------------------------------
$ cd spring-android-showcase/client
$ mvn clean install
$ mvn android:emulator-start
IMPORTANT: Ensure the emulator is fully initialized and ready or the deploy will fail.
$ mvn android:deploy
View Logging
$ adb logcat


Tuning Emulator Performance
--------------------------------
If the Android emulator is running sluggishly, you can try editing your AVD configuration with the following settings:
- Check Snapshot: Enabled
- Set the 'Device ram size' property to 1024.


Troubleshooting Failed Deployment
---------------------------------
If 'mvn android:deploy' fails, try stopping and restarting the adb server:
$ adb kill-server
$ adb start-server
$ mvn android:deploy


Unix Config
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make sure ~/.bashrc or ~/.bash_profile ~/.profile 
export M2_HOME=/opt/local/share/java/maven2
export MACPORTS_HOME=/opt/local/share
export ANDROID_HOME=/Users/markkelly/Downloads/android-sdk-macosx

AND /etc/launchd.conf (May not be created yet) has
setenv M2_HOME XXXX (e.g. /opt/local/share/java/maven2)
setenv ANDROID_HOME XXXXX (the location of the SDK android folder)