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Showing posts from March, 2012

Getting Started with Scala

I started my learning by doing fresh eclipse 3.6 + Scala 2.9 build setup. Setup failed first time but second time I was able to create sample project and run few sample programs. Scala IDE download link is mentioned in references link at the bottom of this post. Now it is time to take deep dive into Scala world!

Why Scala? Scala is a SCAlable LAnguage.

Introductions:
Scala is a functional-object hybrid language with several powerful factors working in its favor:
1.    Scala compiles to Java byte code, meaning it runs on the JVM. In addition to enabling you to continue leveraging the rich Java open-source ecosystem, Scala can be integrated into an existing IT environment with zero migration effort.
2.    Scala is based on the functional principles of Haskell and ML, yet still borrows heavily from the familiar object-oriented concepts Java programmers love. As a result, it can blend the best of both worlds into a whole that offers significant benefit without sacrificing the familiarity …

Why Android 2.3 apps can not access telephone API's or modify call state using MODIFY_PHONE_STATE permission?

I tried to record call as well many others are trying all over the world. Android 2.3 does not allow you to do that as far as i know. I refereed following links:
1. http://prasanta-paul.blogspot.in/2010/09/call-control-in-android.html

2. http://code.google.com/p/auto-answer/source/browse/trunk/src/com/everysoft/autoanswer/AutoAnswerIntentService.java

Above linked seemed to help. Many people told it worked from them in Android 2.1 and Android 2.2 but it does not work with Android 2.3. I got error message: "java.lang.SecurityException: Neither user 10035 nor current process has android.permission.MODIFY_PHONE_STATE." 

To capture call or pickup call programatically you need to use "android.permission.MODIFY_PHONE_STATE" permission in AndroidManifest.xml. From Android 2.3 onwards developers are not allowed to access this permission. Only venders with OEM license can use it for any apps which come preloaded on Android device when you …