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Cheat Sheet:
Android Development Google's Mobile Operating System Currently on the G1 phone available from T-Mobile in the US. ========================================================== Hello World: http://developer.android.com/guide/tutorials/hello-world.html Not Using Eclipse IDE? http://developer.android.com/guide/developing/other-ide.html Table of Contents ================================== * Creating a Project Without Eclipse * Running a Project * Android Virtual Device (AVD) Creating an AVD Listing Targets * Working with Virtual SD Cards Creating an SD Card Mounting SD Card Adding Card to AVD * Android and Google Maps API Getting MD5 Fingerprint of SDK Debug Certificate Getting a Google Maps API Key Creating a Project Without Eclipse $ android create project \ --package com.android.helloandroid \ --activity HelloAndroid \ --target 2 \ --path <path-to-your-project>/HelloAndroid Running a Project Launch the Emulator (see AVD below): $ emulator -avd <your_avd_name> $ ant debug # compile and sign up with debug key $ adb install /path/to/your/application.apk # Install to AVD "If there is more than one emulator running, you must specify the emulator upon which to install the application, by its serial number, with the -s option. For example:" $ adb -s emulator-5554 install /my/project/path/myapp.apk Android Virtual Device (AVD) This is the Android emulator, written in Java and available for Windows, OS X, and Linux. http://developer.android.com/guide/developing/tools/avd.html Creating an AVD $ android create avd -n <name> -t <targetID> [-<option> <value>] ... Example: Here's an example that creates an AVD with name "my_android1.5" and target ID "2" (the standard Android 1.5 system image in the list above): $ android create avd -n my_android1.5 -t 2 Listing Targets $ android list targets Working with Virtual SD Cards =============================================== Creating an SD Card $ mksdcard 1024 1024.sdcard # bytes $ mksdcard 128M 128M.sdcard $ mksdcard 2048M 2gig.sdcard Mounting SD Card $ sudo mount -o loop 128M.sdcard /media/card $ sudo cp file1.mp3 file2.jpg file3.txt file4.txt /media/card Adding Card to AVD Make sure to unmount after copying files to card $ sudo umount /media/card $ ./android create avd --name myAVD --target 2 --sdcard 128M.sdcard If you get a warning that the SD card is locked, make sure: "emulator: WARNING: ignoring locked SD Card image at" Emulator has permissions to read/write the card file Emulator has RWX access to the card file's directory I had problems with the card file being on a FAT32 partition. Moving it to ext3 or reiserFS worked. Thanks to http://blog.jayway.com/2009/04/22/working-with-sd-cards-in-the-android-emulator/ Android and Google Maps API ================================================ Use an AVD with target 3 for applications that use the Google Maps API. Getting MD5 Fingerprint of SDK Debug Certificate You will need this key if you want to obtain a Google Maps API Key. This is necessary if you are using Google Maps in your Android app. * OS X and Linux: ~/.android/debug.keystore * Windows XP: C:\Documents and Settings\<user>\.android\debug.keystore * Windows Vista: C:\Users\<user>\.android\debug.keystore $ keytool -list -alias androiddebugkey \ -keystore <path_to_debug_keystore>.keystore \ -storepass android -keypass android Get a Google Maps API Key: The link on the official android site is a 404 Avoid this: http://code.google.com/android/add-ons/google-apis/maps-api-signup.html Use the new link: http://code.google.com/android/maps-api-signup.html

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