Find ways to clear the android os's recent app usage history record
change all possible keywords, but no useful message found
so, the only way is to find the official source code
then virtual machine, ubuntu, and till now the source code downloading has last about four days.
in these days, I wnated tofinish the thingking in java, but all reading make the process so boring, so libgdx now...
libgdx use gradle to do the build stuff, so I have to download gradle, google the gradle install, I find this:http://blog.jobbole.com/71999/
follow this article, I install Homebrew(http://brew.sh/index_zh-cn.html), and then install gradle success, that's all, record the whole process here.