fix: Correct redact UIView with higher zPosition

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 - Resumes replay when the app becomes active (#4303)
 - Session replay redact view with transformation (#4308)
+- Correct redact UIView with higher zPosition (#4309) 
 
 ## 8.36.0
 

Sources/Swift/Tools/UIRedactBuilder.swift

@@ -142,7 +142,7 @@ class UIRedactBuilder {
         }
 
         if !ignore {
-            for subview in view.subviews {
+            for subview in view.subviews.sorted(by: { $0.layer.zPosition < $1.layer.zPosition }) {
                 mapRedactRegion(fromView: subview, to: to, redacting: &redacting, area: area, redactText: redactText, redactImage: redactImage, transform: newTransform)
             }
         }

Tests/SentryTests/SentryViewPhotographerTests.swift

@@ -84,6 +84,20 @@ class SentryViewPhotographerTests: XCTestCase {
         assertColor(pixel, .green)
     }
 
+    func testLabelRedactedWithHigherZpotition() throws {
+        let label = UILabel(frame: CGRect(x: 0, y: 0, width: 30, height: 30))
+        label.text = "Test"
+        label.layer.zPosition = 1
+
+        let viewOnTop = UIView(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
+        viewOnTop.backgroundColor = .green
+
+        let image = try XCTUnwrap(prepare(views: [label, viewOnTop]))
+        let pixel = color(at: CGPoint(x: 10, y: 10), in: image)
+
+        assertColor(pixel, .black)
+    }
+
     func testLabelRedactedWithNonOpaqueViewOnTop() throws {
         let label = UILabel(frame: CGRect(x: 0, y: 0, width: 30, height: 30))
         label.text = "Test"