Merge pull request #16 from heyongjian/master

huangming:merge the main branch to native branch.
huangming:add the custom menu view for new  joy launcher.
Merge pull request #20 from whuthm/master

huangming : add the custom menu view for new joy launcher.
Merge pull request #17 from heyongjian/master

huangming:merge the main branch to native branch.
huangming:add the show or hide apps function for new joy launcher.
Merge pull request #21 from whuthm/master

huangming:add show or hide apps functiong for new joy launcher.
Merge pull request #18 from heyongjian/master

huangming:merge the main branch to native branch.
huangming : add the installed apps function for new joy launcher.
Merge pull request #22 from whuthm/master

huangming: add the installed apps for new joy launcher.
merger preference.
Merge pull request #12 from heyongjian/master

merger