test android NDK sample

http://developer.android.com/sdk/ndk/1.6_r1/index.html

setup the environment

$ cd ndk_directory

$ ./build/host-setup.sh

compile sample share library

$ cd ndk_directory

$ make APP=hello-jni

open android project by eclipse

重新compile .so之後必須對著project點refresh

modify android platform compatibility

不同的API Level改變不同minSdkVersion的值

ex: android 1.5 = 3

ex: android 1.6 = 4