fix keyWindow nil crash

keyWindow may be nil on iOS 15, this is a simple fix
kevin-zqw · Oct 14, 2021 · 597e660 · 597e660
1 parent 8fd26f2
commit 597e660
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/PKHUD/PKHUD.swift b/PKHUD/PKHUD.swift
@@ -123,7 +123,9 @@ open class PKHUD: NSObject {
     open var trailingMargin: CGFloat = 0
 
     open func show(onView view: UIView? = nil) {
-        let view: UIView = view ?? viewToPresentOn ?? UIApplication.shared.keyWindow!
+        guard let view: UIView = view ?? viewToPresentOn ?? UIApplication.shared.keyWindow else {
+            return
+        }
         if  !view.subviews.contains(container) {
             view.addSubview(container)
             container.frame.origin = CGPoint.zero