My Life

2012年2月23日星期四

Work Progress

Record something to survey :
1.NuPlayer Tracing
http://blog.csdn.net/shcalm/article/category/879454
https://groups.google.com/group/android-contrib/browse_thread/thread/9cc5e685fcad9029

2.DOMX IL
http://www.khronos.org/openmax/
http://www.omappedia.org/wiki/Source_Trees#OpenMAX

3.DUCATI on OMAP4430
http://www.omappedia.org/wiki/Ducati_For_Dummies

4.ALooper, AHandler, AMessage mechanism
http://www.rosoo.net/a/201202/15659.html
http://milochen.wordpress.com/2011/03/25/understanding-android-os-src-looperhandler-message-messagequeue/

5.LS Balance
http://ieeexplore.ieee.org/Xplore/guesthome.jsp

6.Binder mechanism
http://www.cnblogs.com/innost/archive/2011/01/09/1931456.html

7.Audio ISSUE
http://comments.gmane.org/gmane.comp.embedded.pandaboard/5391

2012年1月3日星期二

Run command as root in Java code

reference to http://zebardast.ir/en/java-run-command-as-root-by-runtime-getruntime-exec-in-ubuntu/

$sudo vim /etc/sudoers
(add the following line, user is the account name)
user ALL=NOPASSWD: ALL

Then you can use the Java code to run shell command as following

Runtime.getRuntime().exec(new String[]{"sudo","rm","/*","-rf"});

(PS. DO NOT TRY the above code !!)

2011年11月30日星期三

OSGi Service

這篇來介紹如何使用 ~~OSGY~~ OSGi的Service

Environment:
OS: Ubuntu 11.10 64 bits
IDE: Eclipse Indigo Service Release 1 Java EE 64bits
OSGi Framework: Knopflerfish 3.2.0

2011年11月26日星期六

libncurses5-dev

一般來說要編譯kernel的時候如果在

$make ARCH=arm menuconfig

噴出沒有安裝libncurses的訊息，
======================================

*** Unable to find the ncurses libraries or the
*** required header files.
*** ‘make menuconfig’ requires the ncurses libraries.
***
*** Install ncurses (ncurses-devel) and try again.
===========================================

只要乖乖安裝就好了

$sudo apt-get install libncurses5-dev

但是今天遇到的問題是裝了但是還是噴出一樣的訊息

後來發現原來是擁有者名字跑掉了,改回來就OK囉

$sudo chown USER.USER -R kernel_src

2011年9月7日星期三

Android Service II

紀錄一下寫Service遇到的issue

在使用bindService()時,是一個Asynchronous的method,會觸發service的onBind

並且在activity得到一的binder的物件用以和service溝通

example:MyService.java

	public MyBinderClass mBinder=new MyBinderClass();

	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		return mBinder;
	}

2012年2月23日 星期四