Merge pull request #58 from heyongjian/master

pull request
Merge pull request #186 from whuthm/master

fix bug issue-46, when show the online wallpaper , need a long time to load wallpaper.
fix bug,issue-47,unified format for the download apk name
fix bug,issue-48,after the download is complete, the progress bar does not disappear
wanghao:optimized code,is printed log for download
Merge pull request #60 from heyongjian/master

pull request
Merge pull request #190 from lwanghaol/master

fix bug,issue-48,after the download is complete, the progress bar does not disappear
Merge pull request #88 from heyongjian/master

huangming:merge the main branch to native branch.