ReactiveX · Jake-Prickett · Aug 25, 2025
diff --git a/Package.swift b/Package.swift
@@ -26,15 +26,15 @@ extension Target {
 
 extension Target {
   static func rxCocoa() -> [Target] {
-    #if os(Linux)
+    #if os(Linux) || os(Android)
       return [.rxTarget(name: "RxCocoa", dependencies: ["RxSwift", "RxRelay"])]
     #else
       return [.rxTarget(name: "RxCocoa", dependencies: ["RxSwift", "RxRelay", "RxCocoaRuntime"])]
     #endif
   }
 
   static func rxCocoaRuntime() -> [Target] {
-    #if os(Linux)
+    #if os(Linux) || os(Android)
       return []
     #else
       return [.rxTarget(name: "RxCocoaRuntime", dependencies: ["RxSwift"])]

diff --git a/[email protected] b/[email protected]
@@ -26,15 +26,15 @@ extension Target {
 
 extension Target {
   static func rxCocoa() -> [Target] {
-    #if os(Linux)
+    #if os(Linux) || os(Android)
       return [.rxTarget(name: "RxCocoa", dependencies: ["RxSwift", "RxRelay"])]
     #else
       return [.rxTarget(name: "RxCocoa", dependencies: ["RxSwift", "RxRelay", "RxCocoaRuntime"])]
     #endif
   }
 
   static func rxCocoaRuntime() -> [Target] {
-    #if os(Linux)
+    #if os(Linux) || os(Android)
       return []
     #else
       return [.rxTarget(name: "RxCocoaRuntime", dependencies: ["RxSwift"])]

diff --git a/Platform/Platform.Android.swift b/Platform/Platform.Android.swift
@@ -0,0 +1,32 @@
+//
+//  Platform.Android.swift
+//  Platform
+//
+//  Created by Jake Prickett on 8/24/25.
+//  Copyright © 2025 Krunoslav Zaher. All rights reserved.
+//
+
+#if os(Android)
+
+    import Foundation
+
+    extension Thread {
+
+        static func setThreadLocalStorageValue<T: AnyObject>(_ value: T?, forKey key: String) {
+            if let newValue = value {
+                Thread.current.threadDictionary[key] = newValue
+            }
+            else {
+                Thread.current.threadDictionary[key] = nil
+            }
+        }
+
+        static func getThreadLocalStorageValueForKey<T: AnyObject>(_ key: String) -> T? {
+            let currentThread = Thread.current
+            let threadDictionary = currentThread.threadDictionary
+
+            return threadDictionary[key] as? T
+        }
+    }
+
+#endif
diff --git a/RxBlocking/Platform/Platform.Android.swift b/RxBlocking/Platform/Platform.Android.swift
@@ -0,0 +1 @@
+../../Platform/Platform.Android.swift
diff --git a/RxBlocking/RunLoopLock.swift b/RxBlocking/RunLoopLock.swift
@@ -10,7 +10,7 @@ import CoreFoundation
 import Foundation
 import RxSwift
 
-#if os(Linux)
+#if os(Linux) || os(Android)
     import Foundation
     let runLoopMode: RunLoop.Mode = .default
     let runLoopModeRaw: CFString = unsafeBitCast(runLoopMode.rawValue._bridgeToObjectiveC(), to: CFString.self)
@@ -61,7 +61,7 @@ final class RunLoopLock {
             fatalError("Run can be only called once")
         }
         if let timeout = self.timeout {
-            #if os(Linux)
+            #if os(Linux) || os(Android)
             let runLoopResult = CFRunLoopRunInMode(runLoopModeRaw, timeout, false)
             #else
             let runLoopResult = CFRunLoopRunInMode(runLoopMode, timeout, false)

diff --git a/RxCocoa/Common/DelegateProxy.swift b/RxCocoa/Common/DelegateProxy.swift
@@ -6,10 +6,10 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
     import RxSwift
-    #if SWIFT_PACKAGE && !os(Linux)
+    #if SWIFT_PACKAGE && !os(Linux) && !os(Android)
         import RxCocoaRuntime
     #endif
 

diff --git a/RxCocoa/Common/DelegateProxyType.swift b/RxCocoa/Common/DelegateProxyType.swift
@@ -6,7 +6,7 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
     import Foundation
     import RxSwift

diff --git a/RxCocoa/Common/RxCocoaObjCRuntimeError+Extensions.swift b/RxCocoa/Common/RxCocoaObjCRuntimeError+Extensions.swift
@@ -6,11 +6,11 @@
 //  Copyright © 2016 Krunoslav Zaher. All rights reserved.
 //
 
-#if SWIFT_PACKAGE && !DISABLE_SWIZZLING && !os(Linux)
+#if SWIFT_PACKAGE && !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
     import RxCocoaRuntime
 #endif
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
     /// RxCocoa ObjC runtime interception mechanism.
     public enum RxCocoaInterceptionMechanism {
         /// Unknown message interception mechanism.

diff --git a/RxCocoa/Foundation/KVORepresentable+CoreGraphics.swift b/RxCocoa/Foundation/KVORepresentable+CoreGraphics.swift
@@ -6,7 +6,7 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
 import RxSwift
 import CoreGraphics

diff --git a/RxCocoa/Foundation/NSObject+Rx+KVORepresentable.swift b/RxCocoa/Foundation/NSObject+Rx+KVORepresentable.swift
@@ -6,7 +6,7 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
 import Foundation
 import RxSwift
@@ -42,7 +42,7 @@ extension Reactive where Base: NSObject {
     }
 }
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
     // KVO
     extension Reactive where Base: NSObject {
         /**

diff --git a/RxCocoa/Foundation/NSObject+Rx+RawRepresentable.swift b/RxCocoa/Foundation/NSObject+Rx+RawRepresentable.swift
@@ -6,7 +6,7 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
 import RxSwift
 

diff --git a/RxCocoa/Foundation/NSObject+Rx.swift b/RxCocoa/Foundation/NSObject+Rx.swift
@@ -6,22 +6,22 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
 import Foundation
 import RxSwift
 #if SWIFT_PACKAGE && !DISABLE_SWIZZLING && !os(Linux)
     import RxCocoaRuntime
 #endif
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
 private var deallocatingSubjectTriggerContext: UInt8 = 0
 private var deallocatingSubjectContext: UInt8 = 0
 #endif
 private var deallocatedSubjectTriggerContext: UInt8 = 0
 private var deallocatedSubjectContext: UInt8 = 0
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
 /**
 KVO is a tricky mechanism.
@@ -95,7 +95,7 @@ extension Reactive where Base: NSObject {
 
 #endif
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
 // KVO
 extension Reactive where Base: NSObject {
     /**
@@ -144,7 +144,7 @@ extension Reactive where Base: AnyObject {
         }
     }
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
 
     /**
      Observable sequence of message arguments that completes when object is deallocated.
@@ -264,7 +264,7 @@ extension Reactive where Base: AnyObject {
 
 // MARK: Message interceptors
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
 
     private protocol MessageInterceptorSubject: AnyObject {
         init()
@@ -349,7 +349,7 @@ private final class DeallocObservable {
 
 // MARK: KVO
 
-#if !os(Linux)
+#if !os(Linux) && !os(Android)
 
 private protocol KVOObservableProtocol {
     var target: AnyObject { get }
@@ -438,7 +438,7 @@ private extension KeyValueObservingOptions {
 
 #endif
 
-#if !DISABLE_SWIZZLING && !os(Linux)
+#if !DISABLE_SWIZZLING && !os(Linux) && !os(Android)
 
     private func observeWeaklyKeyPathFor(_ target: NSObject, keyPath: String, options: KeyValueObservingOptions) -> Observable<AnyObject?> {
         let components = keyPath.components(separatedBy: ".").filter { $0 != "self" }

diff --git a/RxCocoa/Traits/SharedSequence/SharedSequence+Concurrency.swift b/RxCocoa/Traits/SharedSequence/SharedSequence+Concurrency.swift
@@ -6,7 +6,7 @@
 //  Copyright © 2021 Krunoslav Zaher. All rights reserved.
 //
 
-#if swift(>=5.6) && canImport(_Concurrency) && !os(Linux)
+#if swift(>=5.6) && canImport(_Concurrency) && !os(Linux) && !os(Android)
 import Foundation
 
 // MARK: - Shared Sequence

diff --git a/RxSwift/Platform/Platform.Android.swift b/RxSwift/Platform/Platform.Android.swift
@@ -0,0 +1 @@
+../../Platform/Platform.Android.swift
diff --git a/RxSwift/RxMutableBox.swift b/RxSwift/RxMutableBox.swift
@@ -6,7 +6,7 @@
 //  Copyright © 2015 Krunoslav Zaher. All rights reserved.
 //
 
-#if os(Linux)
+#if os(Linux) || os(Android)
 /// As Swift 5 was released, A patch to `Thread` for Linux
 /// changed `threadDictionary` to a `NSMutableDictionary` instead of
 /// a `Dictionary<String, Any>`: https://github.com/apple/swift-corelibs-foundation/pull/1762/files

diff --git a/RxSwift/Schedulers/CurrentThreadScheduler.swift b/RxSwift/Schedulers/CurrentThreadScheduler.swift
@@ -9,7 +9,7 @@
 import Dispatch
 import Foundation
 
-#if os(Linux)
+#if os(Linux) || os(Android)
     fileprivate enum CurrentThreadSchedulerQueueKey {
         fileprivate static let instance = "RxSwift.CurrentThreadScheduler.Queue"
     }

diff --git a/Sources/AllTestz/Platform.Android.swift b/Sources/AllTestz/Platform.Android.swift
@@ -0,0 +1 @@
+../../Platform/Platform.Android.swift
diff --git a/Sources/RxBlocking/Platform.Android.swift b/Sources/RxBlocking/Platform.Android.swift
@@ -0,0 +1 @@
+../../Platform/Platform.Android.swift
diff --git a/Sources/RxSwift/Platform.Android.swift b/Sources/RxSwift/Platform.Android.swift
@@ -0,0 +1 @@
+../../Platform/Platform.Android.swift
diff --git a/Tests/Platform/Platform.Android.swift b/Tests/Platform/Platform.Android.swift
@@ -0,0 +1 @@
+../../Platform/Platform.Android.swift
diff --git a/scripts/validate-headers.swift b/scripts/validate-headers.swift
@@ -45,6 +45,7 @@ let excludePaths = [
     "AllTestz/main.swift",
     "Platform/AtomicInt.swift",
     "Platform/Platform.Linux.swift",
+    "Platform/Platform.Android.swift",
     "Platform/Platform.Darwin.swift",
     "Platform/RecursiveLock.swift",
     "Platform/DataStructures/Bag.swift",