摘要： 问题1：WARNING: Data partition already in use. Changes will not persist!用adb kill-server 再adb start-server问题2：Failed to install on device 'emulator-5554 ': timeouteclipse -> window -> Preferences -> Android -> DDMS -> ADB connection time out(ms).把时间设置的长些资源包：范例练习b4FLExB4.rar需求分析：1 阅读全文