Questions about iPhone images .,
Because the screen resolution of iOS devices is different and the screen resolution is large or small, displaying the same image on different devices may cause the image to be stretched and deformed, seriously affecting the user experience. Ghost Image:
1. Default.png (image size: 320x480): displayed on a non-Retina- 3.5 inch screen (iPhone3G \ iPhone3GS, screen resolution: 320x480)
2. Default@2x.png (image size: 640x960): displayed on the retina-3.5 inch screen (iPhone4 \ iPhone4s, screen resolution: 640x960)
3. Default-568h@2x.png (image size: 640x1136): displayed on the retina-4.0 inch screen (iPhone5 \ iPhone5s, screen resolution: 640x1136)
4.Default-375w-667h@2x.png (picture size 750*1334): display on Retaina- 4.7 inch screen (iPhone6, screen resolution 750x1334)
6.Default-414w-736h@3x.png (picture size 1242*2208): display on Retaina- 5.5 inch screen (iPhone6p, screen resolution 1242x2208)