iPhone尺寸

/*
屏幕尺寸

物理pt

像素px
iPhone4 320 * 480 2倍
iPhone4s
320 * 480 2倍
iPhone5
320 * 568 2倍
iPhone6
375 * 667 2倍
iPhone6plus
414 * 736 3倍
iPhone6s 375
* 667 2倍
iPhone6splus
414 * 736 3倍
*/

/*

Icon.png – 57×57 iPhone (ios5/6)

Icon@2x.png – 114×114 iPhone Retina (ios5/6)

Icon-72.png – 72×72 iPad (ios5/6)

Icon-72@2x.png - 144×144 iPad Retina (ios5/6)

Icon-60@2x.png - 120x120 iphone & ipod touch (ios7/8)

Icon-60@3x.png - 180x180 iphone6 plus (ios8)

Icon-76.png - 76x76 ipad2 & ipad mini (ios7/8)

Icon-76@2x.png - 152x152 ipad retina (ios7/8)

*/