Merge pull request #57 from heyongjian/master

merge pull request
wanghao:fix bug issue-44,solve messy display when backup
wanghao:fix bug issue-45,add the default file type
Merge pull request #179 from whuthm/master

fix bug issue-43,the appearance of notification icon is different.
Merge pull request #184 from lwanghaol/master

wanghao:fix bug issue-45,add the default file type
Merge pull request #86 from heyongjian/master

huangming:merge the main branch to native branch.