Develop Reference

Android auto getting RPM data

Ive looked everywhere for a solution to read RPM data on Android Auto with Android studio. Found no solution. I was hoping someone has more experience in this field and could point me in the right direction.
I tried to use CarHardwareManager and looked into CarPropertyManager but I cannot find any proper documentation on how to implement an RPM listener of some sort.
My end goal is to have a listener that will receive the current RPM the vehicle is at.
Please help! Thank you!

There is this function that you can use to get properties.
CarPropertyManager.getProperty()
You need to use constants defined in VehiclePropertyIds. Here goes the one that could do the trick:
VehiclePropertyIds.ENGINE_RPM. Note that this requires certains permissions.
Also the function seems to take a areaId argument. It's a little confusing but using CarPropertyManager.getAreaId(ENGINE_RPM, VEHICLE_AREA_TYPE_WHEEL) may yield the required value. Please double-check it as I cannot test it myself.
CarPropertyManager.getProperty(propertyId, areaId). This should return a CarPropertyValue. Then you can use getValue().
As for the listener, you may implemented this interface to listen for changes in such properties.
CarPropertyManager.CarPropertyEventCallback
CarPropertyManager.registerCallback(callback, propertyId, refreshRate)
I'll link to registerCallback documentation https://developer.android.com/reference/android/car/hardware/property/CarPropertyManager#registerCallback(android.car.hardware.property.CarPropertyManager.CarPropertyEventCallback,%20int,%20float)

`Get List of all PLC Data block by MOKA

I try snap7 project and i find very useful functions. but in java version of snap7 (moka library) some methods is missing.
for example, now, I want to get list of all data block (DB). in c, there is a method (Cli_ListBlocksOfTyp) but I don't know how to do it in moka.
anybody can help me?

The reason is, that not all functions are ported in moka. As you can see in the MOKA overview.
The overview also contains all functions providet by MOKA.
Hope it was helpfull.

Autocomplete functionality for contacts module

I have an application which has a contacts module and I am using JAVA for the same.I have to implement the "Auto complete" functionality for the same. I.e., as i start typing the alphabets, search results start appearing and will eventually narrow down to the matching letter after entering the same.
Please help me with some reference JAVA code, API's and some cool stuffs to go as an add-on.

If you are looking for some example see this
http://viralpatel.net/blogs/2009/06/tutorial-create-autocomplete-feature-with-java-jsp-jquery.html
This one is basic example to make a auto complete.
And if you want some jazzy look and field then you can use jquery plug in client side
http://jqueryui.com/demos/autocomplete/
http://www.devbridge.com/projects/autocomplete/jquery/
http://www.ajaxdaddy.com/demo-jquery-autocomplete.html
I think this will help you.

I think you need to use Ajax for the same . Check out irctc.co.in , they use Ajax for station completion , quite effortlessly

About JWKTL(JAVA) and how to use the same

I want an API in java which would give me the meaning of words. I tried using JWKTL but I am not getting it. Could anyone direct me regarding this. Thank you.

Have you checked WordNet?
But if you're interested in Wiktionary, you may consider checking JWKTL alternative: Wikokit

Java XML Tool using method chaining/builder pattern

I remember that a while ago I found a truly great utility here on StackOverflow for manipulating XML documents with an interface like:
new XMLTool(document)
.goTo("xpath")
.addNode("name")
.addChild()
.addContent("xxx")
.parent()
.remove("oldNode);
Could anybody tell me what tool that was?

Maybe the java-xmlbuilder at Google code? It's indeed great in use.

You've got to be kidding me. It's actually called XMLTool.
I must've had a brainfart while searching for it!
This is the URL: http://code.google.com/p/xmltool/
At least the next time someone searches for method chaining XML tool he'll find this post ...