From 46354c39380731c377021f5b6ae8d20ab4c1886f Mon Sep 17 00:00:00 2001
From: Aleksey Kondakov <112566801+A-Kimpo@users.noreply.github.com>
Date: Mon, 26 Oct 2026 02:46:39 +0500
Subject: [PATCH] Fix: unmounted secureTextEntry TextInput retained by the
 measurement cache

Added logic to strip specific spans from the text buffer to prevent memory leaks.
---
 .../com/facebook/react/views/textinput/ReactEditText.kt   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.kt
index 5858f865273f..73b4de50289a 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.kt
@@ -32,6 +32,8 @@ import android.text.TextUtils
 import android.text.TextWatcher
 import android.text.method.KeyListener
 import android.text.method.QwertyKeyListener
+import android.text.style.CharacterStyle
+import android.text.style.ParagraphStyle
 import android.util.TypedValue
 import android.view.ActionMode
 import android.view.DragEvent
@@ -1242,6 +1244,12 @@ public open class ReactEditText public constructor(context: Context) : AppCompat
       } catch (e: IndexOutOfBoundsException) {
         logSoftException(TAG, e)
       }
+      // The copy only feeds measurement, so drop editor bookkeeping spans. Some of them reference
+      // this view's Editable (PasswordTransformationMethod.Visible), and the cache is evicted only
+      // from finalize(), so keeping them would keep this view reachable for good.
+      stripSpansOfKind(sb, Any::class.java) { span ->
+        span !is CharacterStyle && span !is ParagraphStyle && span !is ReactSpan
+      }
     }
 
     // If we don't have text, make sure we have *something* to measure.