dberm22's profile - activity

I am developing an android app with rosjava, and I am setting the Master URI programatically. Therefore, the Master Chooser screen does nothing for me. Is there a way I can skip it totally?

I am developing with ros on an android tablet, and I am trying to change parameters using the device (as a remote, so to speak). However, I am having trouble doing so. Has anyone done this?

Here is my attempt:

    NodeConfiguration nodeConfiguration = NodeConfiguration.newPublic( InetAddressFactory.newNonLoopback().getHostAddress());
    nodeConfiguration.setMasterUri(URI.create(IP_ADDRESS));
    ListView ParamListView = (ListView) findViewById(R.id.ParamListView);
    final String[] NodeName = url.split("=");
    ScheduledExecutorService scheduledExecutorService = Executors.newScheduledThreadPool(Integer.MAX_VALUE);
    NodeFactory nodeFactory = new DefaultNodeFactory(scheduledExecutorService);
    Node node = nodeFactory.newNode(nodeConfiguration);
    ConnectedNode connectednode = (ConnectedNode) node;
    final ParameterTree ParamList = connectednode.getParameterTree();
    //final ParameterTree ParamList = (ParameterTree) new ArrayList<String>();
    @SuppressWarnings("unchecked")
    List<String> ParamJavaList = (List<String>) ParamList.getList(NodeName[1]);
    final ArrayAdapter<String> ParamListAdapter = new ArrayAdapter<String>(this, android.R.id.text1, ParamJavaList);
    ParamListView.setAdapter(ParamListAdapter);

What am I doing wrong? I am not sure how to copy and paste my error log, but the error is is occurring before my call of getList().

If I uncomment the commented line and comment out the 5 lines before it, I get an error saying I cannot cast from ArrayList to ParameterTree. That is how I got to this convoluted point of trying to initialize the ParamList using getParameterTree(), which requires access to the connected node.

I am sure there is an easier way to do this, but I am not aware of it.

Thanks in advance!

Yup, downloading the source, editing the cmake files to not include those checks, and recompiling did the job. Not sure why those flags should matter as my pcl is sse compatible, but either way, it's working.

I wasn't sure if that flag was the only difference, so I didn't take the time to download the new source, edit the file, and then recompile myself. Plus, my laptop is a brand new aienware with SSE support...so I have no idea if it'll help.

I was able to get it working by backporting the functions from 1.7 into 1.5. Hopefully there will be a patch to 1.7 before I need to backport any more functions. Thanks anyway.

I said in my post that I tried 1.7. I updated it 2 days ago..the patch is not applied, so it doesn't work.

I am trying to use RegionGrowingRGB and other functions which are available in pcl 1.7 but not 1.5. The issue I am having is that 1.7 does not contain the recent patch that was applied to 1.5 (which solved my segfault issue here).

My question is, is there any way I can mix versions in my code? I either want to use 1.5 but be able to call functions implemented in 1.7, or use 1.7 but be able to use the 1.5 version of files which were affected by the patch. Is there any easy way to do this?

I don't think I can simply copy the missing files into the 1.5 directory because I'm sure there are tons of dependencies.

while technically you are correct, that didn't help me solve the issue on THIS computer. See the comments on the accepted answer. Thanks anyway.

You are mostly correct. I updated to pcl-1.7 thinking that the changes made to 1.5 would be reflect in 1.7, but they were not. I downloaded the new version of 1.5 from here http://50.28.27.175/repos/building/pool/main/r/ros-fuerte-pcl/ and it worked like a charm. I will update the rest now. Thanks!

Your error starts here:

04-09 10:58:24.915: E/AndroidRuntime(343): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.ros.tutorials.pubsub/org.ros.android.tutorial.pubsub.MainActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class org.ros.android.views.RosTextView

If you notice, you have both "org.ros.tutorials.pubsub" and "org.ros.tutoral.pubsub". (notice the extra/lack-of "s" in tutorials). Check to see if your spelling is correct.

Also, check the manifest to see if everything is in there and spelled correctly.

But I agree, first make sure you followed the instructions first: http://docs.rosjava.googlecode.com/hg/android_core/html/index.html

--Edit--

I may be completely wrong with this next part, but you have

04-09 10:58:24.684: I/dalvikvm(343): Failed resolving Lorg/ros/android/NodeRunnerService; interface 142 'Lorg/ros/node/NodeMainExecutor;'

Is it supposed to be "org" or "Lorg"?

Thanks to Kazuto for the lead, but there are a few issues with his answer. I was able to solve them with the included code. First, I changed startMasterChooser in RosActivity.java to public, and then pasted this code into my activity:

@Override
  public void startMasterChooser() {

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
    String masterURI = prefs.getString("masterURI", "http://192.168.1.113:11311");

    Intent data = new Intent();
    data.putExtra("ROS_MASTER_URI", masterURI);
    onActivityResult(0, RESULT_OK, data);

  }

Alternatively, you can just hardcode the masterURI...I chose to have it as a preference. Hopefully changing the RosActivity code doesn't have any effect on future work.