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。-The ProgressDialog Java source code, Android programming process in progress dialog box, played Android phone friends probably are aware, in the operation of some programs, Android phones will display Loading, prompted the program being processed, the Dialog dialog box can be verygood prompt users to be slightly waiting for, then how it is implemented, will tell you the source principle.