1、标准SDK开发:
IDE：
Eclipse
Netbeans
Language：
Java
2、标准NDK+SDK开发：
IDE：
Eclipse
Language：
Java（JNI）
C/C++
3、Tranditional linux开发
IDE：
c4droid, command line、vim，emacs
Language：
C/C++
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In a miniature linux system view (bootloader, kernel, minifs_system),
the Android device can hold a bunch of peripherals:
SCREEN
TOUCH INPUT
CAMERA
SOUND (In/Out)
USB
WIFI (network chips)
BLUETOOTH
GSM
3G-GPRS
GPS
3D-ACCELERATORS
3D-GYROSCOPE
COMPASS
SD Card
Battery and Managements