ProgressDialog Java源代码，Android程序处理过程中的进度对话框，玩过Android手机的朋友大概都清楚，在操作一些程序的时候，Android手机会显示Loading，提示程序正在处理中，这个Dialog对话框可很好的提示用户要稍做等待，那么它是如何实现的，本源码会告诉你原理。-ProgressDialog Java source code, and the Android program in the process progress Dialog box, played Android mobile phone friends probably all clear, in the operation of some programs, Android mobile phone will display Loading, indicating that the program is processing, the Dialog Dialog box can be very good prompt the user to wait a moment, it is how to achieve, this source will tell you principle.