Updated on 2026-08-14

app/src/main/java/com/tangem/tap/ForegroundActivityObserver.kt

@@ -2,11 +2,18 @@ package com.tangem.tap
 
 import android.app.Activity
 import android.app.Application.ActivityLifecycleCallbacks
+import android.content.Intent
 import android.os.Bundle
-import java.util.WeakHashMap
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
+import java.util.*
 import kotlin.reflect.KClass
 
-class ForegroundActivityObserver {
+class ForegroundActivityObserver : ActivityResultCaller {
+    override var activityResultLauncher: ActivityResultLauncher<Intent>? = null
+        private set
+
     private val activities = WeakHashMap<KClass<out Activity>, Activity>()
 
     val foregroundActivity: Activity?
@@ -15,25 +22,38 @@ class ForegroundActivityObserver {
             .firstOrNull()
             ?.value
 
-    val callbacks get() = Callbacks()
+    internal val callbacks: ActivityLifecycleCallbacks
+        get() = Callbacks()
+
+    internal inner class Callbacks : ActivityLifecycleCallbacks {
+        override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
+            activityResultLauncher = (activity as? AppCompatActivity)?.registerForActivityResult(
+                ActivityResultContracts.StartActivityForResult(),
+            ) {
+                /* no-op */
+            }
+        }
 
-    inner class Callbacks : ActivityLifecycleCallbacks {
         override fun onActivityResumed(activity: Activity) {
             activities[activity::class] = activity
         }
 
         override fun onActivityDestroyed(activity: Activity) {
             activities.remove(activity::class)
+            if (activities.isEmpty()) {
+                activityResultLauncher = null
+            }
         }
 
-        override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
-        }
         override fun onActivityStarted(activity: Activity) {
         }
+
         override fun onActivityPaused(activity: Activity) {
         }
+
         override fun onActivityStopped(activity: Activity) {
         }
+
         override fun onActivitySaveInstanceState(activity: Activity, outState: Bundle) {
         }
     }