Set the code to the lowest level in case of xib (that is, the execution order is not performed first xib) will picture the glass state

Add background to view in Xib drag control interface

Uiimageview *imageview = [[Uiimageview alloc]initwithframe:self.view.bounds];

Imageview.image = [UIImage imagenamed:@ "51670.jpg"];

[Self.view Insertsubview:imageview atindex:0]; (This code is to put the image on the bottom)

Blur the background (frosted glass State)

Uitoolbar *toolbar = [[Uitoolbar alloc]initwithframe:cgrectmake (0, 0, ImageView.frame.size.width, ImageView.frame.size.height)];

Toolbar.barstyle = Uibarstyleblack;

[ImageView Addsubview:toolbar];

Set the code to the lowest level in case of xib (that is, the execution order is not performed first xib) will picture the glass state