Fix minor bugs

1. Adapt to iOS12
2. Fix bugs

1, Adapt to latest iOS version
2, Fix bugs

1, Improve UI
2, Fix minor bugs.
3, Adapt to iphoneX.

Adapt newest iOS version
Fix bugs

1.Fix some bugs.
2.Design data can be opened in other app, like email, dropbox.

1, Fix bugs.
2, Add airdrop to transfer and sync designs.
3, Minor UI improve.

Fix bugs
Adapt new devices

Fix bugs

Change icon
Fix bugs

New User Interface
Better Performance

Fix bugs