创建avd时，建议的参数值

设备，3.2‘ HVGA slider (ADPI) 320*480:mdpi

Target: android 4.3.1  API level 18

CPU Intel Atom

keybroad 不用硬件键盘

skin Skin with dynamic hardware controls

Back camera  None

Memory Options RAM:512  VM Heap:16

Internal Storage: 200 mb

SD card:  size:128 mb