Eclipse Mosquitto (Posts about Mobile)

Android MQTT example project

Mosquitto Project — Thu, 03 Nov 2011 14:54:30 GMT

To celebrate the news that the IBM Java MQTT client implementation will be released as open source, I've put together a simple Android example based on the MQTT service code written by Dale Lane. I'm a beginner at both Java and Android, so expect it to be a bit rough.

The example displays incoming payload text on a text label. It's a complete project that you can build and install on your phone with only a few small changes - search for "CHANGE ME" in src/org/mosquitto/android/mqtt/MQTTDemo.java.

To get the project working, assuming you've already installed the android sdk, first get the IBM Java library (see http://mqtt.org/software) and put it in <project dir>/lib then do the following:

android update project -p &lt;path to project&gt;
# If the update complains about build.xml - delete it and run again
cd &lt;path to project&gt;
ant debug
sudo adb start-server
ant installd

I'll not be at all surprised if there are problems in the project due to different sdk or tool versions. Please comment if you find a problem.

The project is available from http://mosquitto.org/files/examples/android-mqtt-example.zip. Until the IBM Java implementation is open source please be aware of the licence attached to it.

Thanks to Dale for the core Android MQTT service implementation.

MQTT Power Usage on Android

Mosquitto Project — Sun, 16 Oct 2011 19:36:03 GMT

Stephen Nicholas has carried out some power usage analysis of MQTT on Android. Details are at http://stephendnicholas.com/archives/219 and the conclusion is that it doesn't use much power.

Mosquitto on Maemo

Mosquitto Project — Sun, 13 Feb 2011 22:06:04 GMT

Yuvraaj Kelkar got in touch to say he's packaged up mosquitto and the client libraries for Maemo. If you want to use MQTT on your Maemo device then take a look at the details on http://talk.maemo.org/showthread.php?t=69604

Thanks Yuvraaj!

MQTT on Android

Mosquitto Project — Tue, 01 Feb 2011 15:19:37 GMT

Dale Lane has written an enormous blog post [Using MQTT in Android Mobile Applications in which he talks about a lot of the points you are likely to want to consider if you're writing MQTT applications for Android. There's lots of useful information and he even includes a complete source code implementation.