IOS Settings View translucent and child controls opaque

1. Use a translucent picture to make a background
2. Use Colorwithwhite:alpha: white The parameter after the method represents the grayscale, from 0-1 to the black to white change, alpha is the transparency you want to adjust

bgView.backgroundColor = [UIColor colorWithWhite:0.f alpha:0.5];

3 Setting the background in Xib or storyboard

Translucent background xib settings. png

By adjusting the transparency of the Opacity slider in the background color settings graph, you can also achieve the goal of setting the background translucent while the child controls are opaque.

IOS Settings View translucent and child controls opaque