Thank your reply, The first time it can get pvlog and loge, but after i modify some mediafile.java files, it can not print log anymore, even I roll back. I guess there is some thing wrong with my emulator, but I don't know.
oh, I just have a problem with pvlog. How can I print pvlog in logcat? I didn't used it before and now I need it. Someone said to override a system file named system.img . But I don't know how to generate this file. Could u tell me in detail?