iOS image name icon-120.png-120x120 iphone & ipod Touch (IOS7)

Icon

icon.png–57x57 iphone App icon

icon@2x.png–114x114 iPhone Retina Display application icon

icon-72.png–72x72 ipad app icon

icon-72@2x.png-144x144 iPad Retina Display application icon

icon-small.png–29x29 IPhone System Setup and search results icon

icon-small@2x.png–58x58 iPhone Retina Display System setup and search results icon

icon-small-50.png–50x50 IPad system settings and search results icon

ICON-SMALL-50@2X.PNG–100X100 IPad Retina Display System setup and search results icon

icon-120.png-120x120 iphone & ipod Touch (IOS7)

icon-76.png-76x76 ipad2 & ipad Mini (IOS7)

icon-76@2x.png-152x152 ipad Retina (IOS7)

Automatic recognition of system name

Bg.png (I general screen)

Bg@2x.png (Gaoqing)

Bg~ipad.png (ipad normal screen)

Bg~ipad@2x.png (ipad Gaoqing)

Usually read the picture when using [UIImage imagenamed:@ "Bg.png"], will automatically match the good

Priority is

1.bg~ipad@2x.png
2.bg@2x.png
3.bg~ipad.png
4.bg.png

Icon size