Merge pull request #232 from whuthm/ios-style

fix bug JOYL-63, the background turns white when click the preview button.
Merge pull request #71 from heyongjian/ios-style

Ios style
fix bug:JOYL-95,can not re-download the built-in software when re-networking
fix bug:JOYL-96,continue to download when update the built-in virtual Shoutcut list
Merge pull request #234 from lwanghaol/ios-style

 fix bug:JOYL-96,continue to download when update the built-in virtual Shoutcut list
Merge pull request #236 from whuthm/ios-style

fix bug JOYL-99, network info is null when the mobile does not have sim card.
Merge pull request #101 from heyongjian/ios-style

Ios style