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ROSJava Android connect w/o using RosActivity

asked 2012-09-07 06:15:13 -0500

MaxSchmid gravatar image

I am somewhat new to ROSJava for Android. Is there any way to connect an Android device to a Master without extending RosActivity? Basically, all I am trying to do is publish 8 float values (4 (x,y) positions) to a master.

Thank you for your help!

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answered 2012-09-09 04:05:50 -0500

orion gravatar image

updated 2012-09-09 04:08:37 -0500

You can use the old way they used to do things. I was also in the situation where I absolutely could not use RosActivity (since I was already extending). I dug in to their ROSActivity and a few of their tutorials to find the below. Hope it helps.

The method I currently use is:

nodeConfiguration = NodeConfiguration

String hostMaster = prefs.getString("ros_IP", "");
Integer port = Integer.parseInt(prefs.getString("ros_port",
URI uri = URI.create("http://" + hostMaster + ":" + port);

nodeMainExecutor = DefaultNodeMainExecutor.newDefault();
nodeMainExecutor.execute(<NAMEOFNODECLASS>, nodeConfiguration);

I am using a preference menu to hold the hostMaster IP and port, but you can change those directly.

I have been working with ROSJava a lot lately and have been looking for some people who may be more involved in it to hit questions back and forth. I hope this helps you.

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Does this solution work for you or do you need another way?

orion gravatar image orion  ( 2012-09-23 10:24:59 -0500 )edit

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Asked: 2012-09-07 06:15:13 -0500

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Last updated: Sep 09 '12