Merge pull request #100 from heyongjian/master

huangming:merge the main branch to native branch.
fix bug JOYL-100,get less than wallpaper when you first get a list of wallpaper {state:-1}.

add the "state" judgement.
Merge pull request #237 from whuthm/master

fix bug JOYL-100,get less than wallpaper when you first get a list of wallpaper {state:-1}.