Settings for starting picture launch

There are a few things to keep in mind when setting up a boot picture using images.xcassets:
1. Delete the Launch screen.xib file in the project, delete the Launch screen interface in Info.plist ... Options.
2. In target, in app Icon and Launch Images, set Launch Images Source to select Launchimage.
3. Create new Launch image in Images.xcassets Select the screen you want to fit to add the corresponding start diagram
4. Corresponding screen and start-up diagram size
6+ Retina HD5.5 1242 x 2208
6 Retina HD4.7 x 1334
5/5s Retina 4 640 x 1136
4/4S 2x 640 x 960
3g/3gs/touch 1x x 480
The display time of the boot can be set in Appdelegate

[Nsthread Sleepfortimeinterval:3];

Settings for starting picture launch