Open Source Android Apps for Developers: Android-pcbcr

Apps Description
Android PC_BCR allows you to use your Android mobile device as a barcode scanner peripheral for your PC. Barcodes that you scan with your mobile device are transfered over a WiFi network connection to the PC.

There are several components to the program. On the mobile device, the PC_BCR program uses the ZXing barcode scanner to scan the barcodes. The program then transfers the data over the network to the PC, where it is received by the PC_BCR program on the PC. This program on the PC can function as either a keyboard wedge scanner, where the barcode data will be typed into whatever editable field has focus (as if it were typed out using the keyboard), or it can also send data to a serial port where it can be consumed by another program on the PC. The PC application uses Mono and GTK#. It supports Windows (as supported by Mono) and any Unix that can run xvkbd and Mono.

Project Home
http://code.google.com/p/android-pcbcr/

Project owners
brad.drehmer

Version
1.2

Downloads
http://code.google.com/p/android-pcbcr/downloads/list

Source Code
# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://android-pcbcr.googlecode.com/svn/trunk/ android-pcbcr-read-only
Read more…

Open Source Android Apps for Developers: Android-sms

Apps Description
Android-sms is an open source project which aims to create an Android application that automatically backs up SMS messages to Gmail. For using this Android application, user needs to have a Gmail account with IMAP enabled. See the Enabling IMAP Gmail help page to learn how to enable IMAP for Gmail account.

This application allows users to automatically backup SMS messages on their Android device to Gmail. You’ll be able to browse and search your incoming and outgoing messages – neatly put into threads – under the “SMS” label in Gmail. To browse your backed up messages, log into Gmail and click on “SMS” in the labels box, which is located in the left sidebar.

SMS Backup requires the following system permissions:

* Full Internet access

This is required to be able to connect to the Gmail server and send your messages. Note that the connection to the Gmail server is SSL encrypted.

* Prevent phone from sleeping

This will keep your device awake while SMS Backup does its work. Usually, SMS Backup is only active for very short periods and should not draw a lot of your battery.

* Read SMS or MMS, receive SMS

This is required to be able to actually make a listing and send your messages to Gmail.

* Read contact data

This is required to be able to associate every message with its sender or recipient, which will be assigned to the from or to field in Gmail, respectively.

Project Home
http://code.google.com/p/android-sms/

Project owners
chstuder

Version
1.1.1

Downloads
http://code.google.com/p/android-sms/downloads/list
SMS Backup can also be downloaded and installed from Android Market. Go directly to the Android Market listing by clicking the following link on your device: Android Market listing. Click the “Install” button and confirm the required permissions.

Source Code
# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://android-sms.googlecode.com/svn/trunk/ android-sms-read-only
Read more…

Open Source Android Apps for Developers: Android-google-voice-locations

Apps Description
Google Voice Locations adds location awareness to Google Voice. At present, Google Voice Locations allows phones to be enabled and disabled to ring based on location preferences. It was built on the Google Voice Java Library and the Source Code will be forthcoming. It uses the Enable/Disable functionality of Google Voice Java to allow location aware phone activation preferences to be set on Android.

The goal of Google Voice Java is to bring programmatic control of Google Voice to Java Developers. This includes Placing Calls, Sending SMS messages, and viewing Inbox, Voicemails etc. Developers are welcome to contribute to this Open Source project.

Project Home
http://code.google.com/p/android-google-voice-locations/

Project owners
Techventus

Version
0.2.9

Downloads
http://code.google.com/p/android-google-voice-locations/downloads/list

Source Code
# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://android-google-voice-locations.googlecode.com/svn/trunk/ android-google-voice-locations-read-only

Posted by Cute Android

Open Source Android Apps for Developers: AndTweet

Apps Description
AndTweet is an Light-weight Android Twitter client, which s being designed to be a light-weight open Twitter alternative for Android. Optimized for fast operation using both Touch and Keyboard. Finger-friendly interface that allows the user to quickly navigate tweets and respond to them with just the touch of a finger. AndTweet is an open project:

* Open for user’s ideas. Please share your ideas with community and vote for implementation of the best ideas at the AndTweet Ideas Forum.
* Open Source, open for contributing developers. If you’re a developer, AndTweet project will allow you to implement easily your unique Twitter client features, because you can build on the working code. Please read the DeveloperFAQ page for more info.
* Multilingual, translated into 3 languages already (English, German, Russian). New translations are welcomed!

Current Features
* oAuth authentication
* Twitter username auto-completion
* Posting replies, retweets, and updates
* Tweet information
* Application themes
* Direct Messages
* Search tweets for users and text
* Notifications
* Store position in timeline
* Automatic updates
* Time to keep tweets
* Basic widget

Planned Features
* Follow/unfollow users
* Block/unblock users
* Linking of @ usernames in text
* Proper retweet support
* Hashtag auto-expansion
* Highlight replies in timeline
* User avatars
* Twitpic support

Project Home
http://code.google.com/p/andtweet/

http://andtweet.com/

Project owners
torgny.b…@gmail.com, yvolk1

Version
1.0.4

Downloads
http://code.google.com/p/andtweet/downloads/list

Source Code
http://code.google.com/p/andtweet/source/checkout

Command-line access

Get a local copy of the andtweet repository with this command:
hg clone https://andtweet.googlecode.com/hg/ andtweet
Read more…

Open Source Android Apps for Developers: Android-wifi-tether

Apps Description
Android-wifi-tether (Wireless Tether for Root Users) is an opensource Android app which enables tethering (via wifi and bluetooth) for “rooted” handsets running android (such as the Android DevPhone 1). Clients (your laptop for example) can connect via wifi (ad-hoc mode) or bluetooth and get access to the internet using the 3G, 2G mobile connection or (in case you are using bluetooth) the wifi connection which is established by the handset. This application requires a “rooted”-device and a custom-kernel which supports netfilter (iptables)!

Project Home
http://code.google.com/p/android-wifi-tether/

Project owners
harald.mue, ulfada, bbuxton

Version
2.0.5

Downloads
http://code.google.com/p/android-wifi-tether/downloads/list

Source Code
http://code.google.com/p/android-wifi-tether/source/checkout

# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://android-wifi-tether.googlecode.com/svn/trunk/ android-wifi-tether-read-only
Read more…

Open Source Android Apps for Developers: opensudoku-android

Apps Description
OpenSudoku (Sudoku for android) is a simple open source sudoku game. It’s designed to be controlled both by finger and keyboard. It’s preloaded with 90 puzzles in 3 difficulty levels, more puzzles can be downloaded from the web and it also allows user to enter their own puzzles.

OpenSudoku can now open several sudoku file formats directly from web. Just click any link below and folder with puzzles will be downloaded and imported directly into the OpenSudoku. These puzzles were generated by gnome-sudoku – same generator was used to create original puzzles in game. Please note that these puzzles are rather easy.

Project Home
http://code.google.com/p/opensudoku-android/

Project owners
romario333

Version
1.1.1

Downloads
http://code.google.com/p/opensudoku-android/downloads/list

User can install OpenSudoku via Android Market.

Source Code
http://code.google.com/p/opensudoku-android/wiki/SourceCode?tm=4

# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://opensudoku-android.googlecode.com/svn/trunk/ opensudoku-android-read-only
Read more…

Open Source Android Apps for Developers: Android-x86 Project

Apps Description
Android-x86 Project, which aims “Porting Android to x86″ or “Run Android on Your PC”. It is a project to port Android open source project to x86 platform, formerly known as “patch hosting for android x86 support”. The original plan is to host different patches for android x86 support from open source community. A few months after the owner created the project, they found out that they could do much more than just hosting patches. So they decide to fork their code base that will provide android x86 support on different x86 platforms, and set up a git server to host it. To reflect this major change, they create this new project.

The following features are available in the latest test build.

* Kernel 2.6.29 or 2.6.32, KMS enable
* Wifi support with GUI
* Ethernet configuration GUI
* Better disk installer
* Power Suspend/resume (S3 mode)
* Battery Status
* Software mouse cursor
* Mouse wheel
* Support netbook native resolution
* Audio (ALSA)
* V4l2 Camera support
* External monitor support
* External storage auto mount support
* Support external keyboard
* Proxy settings
* Debug mode with busybox
* Bluetooth

Project Home
http://www.android-x86.org/
http://code.google.com/p/android-x86/

Project owners
beyounn, cwhuang01, cwhu…@android-x86.org, corentin.chary

Version
1.6

Downloads
http://code.google.com/p/android-x86/downloads/list

Source Code
http://www.android-x86.org/getsourcecode
Getting Android-x86 source code

First, follow this page to configure your build environment. Then

$ mkdir android-x86
$ cd android-x86
$ repo init -u git://git.android-x86.org/manifest.git -b $branch
$ repo sync
Read more…

Open Source Android Apps for Developers: chrometophone

Apps Description
Google Chrome to Phone Extension is a project consisting of a Chrome Extension, Android App, and supporting AppEngine server that enables users to send links from their Chrome desktop browser to their Android device using Android’s Cloud to Device Messaging service.

Chrome to Phone is now available on Chrome Extension Gallery and Android Market. Please uninstall the pre-release version and install the officially launched version from Gallery / Market for latest bug fixes and features.

Features:

* Send links to browser
* Google Maps links launch the Google Maps app.
* YouTube links launch the YouTube app.
* Selecting phone numbers in Web pages, launches the dialer with the number pre-populated.
* Selected text populates the Android clipboard (long-press on text boxes to get paste option).

Note: Android 2.2 required. Chrome to Phone is powered by the Android Cloud to Device Messaging (C2DM) service, which requires Android 2.2 or later.

Project Home
http://code.google.com/p/chrometophone/

Project owners
costin, deba…@android.com, burke.davey

Version
1.7

Apk Downloads
http://code.google.com/p/chrometophone/downloads/list

Source Code
Use this command to anonymously check out the latest project source code:
# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://chrometophone.googlecode.com/svn/trunk/ chrometophone-read-only

Chrome to Phone for Android 2.2 (Froyo) Video
Following is Chrome to Phone for Android 2.2 (Froyo) Video From Youtube:
Read more…

Tips for Android developer: “Conversion to Dalvik format failed: Unable to execute dex: null”

As Android developer, I have met a strange problem when I want use a third party jar, it remained me that:
Dex Loader] Unable to execute dex: null
Conversion to Dalvik format failed: Unable to execute dex: null
out of memory error…An internal error occurred during: “Build Project”.
Java heap space

This is the DEX Error，I find the solutions by Google, one way is to modify the eclipse.ini, you can increase the memory allocated in eclipse.ini to this: -Xms128m -Xmx512m or something higher, but this didn’t work for me. After modify the eclipse.ini, I cannot start the eclipse. By StackOverflow, I find a solution:

eclipse.ini file must have -vm on first line and path on second line. don’t try to put everything into one line!
-vm
C:\Program Files\Java\jdk1.6.0_07\bin\javaw.exe

After add the -vm and the path in my eclipse.ini, I can start my Eclipse and the problem has been resolved.

Another way to solve the ” Conversion to Dalvik format failed: Unable to execute dex: null” problem is using the user library, the concrete steps are as follows:
1. Right-click the project in Eclipse and select “Build Path -> Add Libraries…”.
2. Select User Library from the list and click Next.
3. Click the “User Libraries…” button.
4. Click “New…” in the User Libraries dialog.
5. Give the user library a name and select the System library checkbox and click OK.
6. Highlight the newly added user library in the list and click the “Add JARs…” button and add the desired jar files.
7. Click OK on the User Libraries dialog.
8. Make sure the new user library is checked in the Add Library dialog and …

Posted by CuteAndroid

Open Source Android Apps for Developers: android-scripting

We have talked about the PHP for Android project (PFA), which provides PHP support to Android Scripting Environment (ASE). Now it’s time to talk about the open source Android project: Android Scripting Environment (ASE).

Apps Description
Android Scripting Environment(ASE) is a Google-mantained open source Android project which is descripted as “Scripting Layer for Android brings scripting languages to Android “.

Scripting Layer for Android (SL4A, formerly known as Android Scripting Environment or ASE) brings scripting languages to Android by allowing you to edit and execute scripts and interactive interpreters directly on the Android device. These scripts have access to many of the APIs available to full-fledged Android applications, but with a greatly simplified interface that makes it easy to get things done. Scripts can be run interactively in a terminal, in the background, or via Locale. Python, Perl, JRuby, Lua, BeanShell, JavaScript, Tcl, and shell are currently supported, and planning to add more. SL4A will focus on providing:

* a simple, very high level API layer on top of Android’s own APIs,
* on-device developer tools (script editing, launching, debugging, etc.),
* sharing scripts as APKs (i.e. typical Android applications),
* and standards for adding new interpreters.

Project Home
http://code.google.com/p/android-scripting/

Project owners
damonkohler

Version
r25

Apk Downloads
You can download the latest package on the download section at My Tracks project home.

Source Code
First Create your own clone

Create a clone of the android-scripting repository hosted at Google Code.

A repository clone is a server-side copy of a project’s repository and can be created by anyone that wants to contribute to a project. For more information, see the Mercurial FAQ.

Then use the Command-line access:

hg clone https://android-scripting.googlecode.com/hg/ android-scripting

For more details:
http://code.google.com/p/android-scripting/source/checkout

SL4A Video Help
Following is the SL4A Video Help From Youtube:
http://www.youtube.com/user/damonkohler#g/c/07A81E6CE96F158B
Read more…