From 8afffc5fec5256482bf8377ccb6b923d0c9ba940 Mon Sep 17 00:00:00 2001
From: dongliang <dongliang@dongliangdeMac-mini.local>
Date: Tue, 28 Apr 2026 21:23:16 +0930
Subject: [PATCH] =?UTF-8?q?fix:=20NFC=E8=AF=BB=E5=88=B0=E5=8D=A1=E5=8F=B7?=
 =?UTF-8?q?=E5=90=8E=E7=AB=8B=E5=8D=B3=E5=81=9C=E6=AD=A2=E8=BD=AE=E8=AF=A2?=
 =?UTF-8?q?=EF=BC=8C=E9=81=BF=E5=85=8D=E9=87=8D=E5=A4=8D=E5=9B=9E=E8=B0=83?=
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轮询每1秒读一次sysfs，卡片还贴着时会再次读到卡号，
导致回调触发两次→API调两次→音效播放两次。
读到有效卡号后立即stopScan()+return，只触发一次回调。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 .../java/com/xiaoqu/watch/device/nfc/FiseNfcController.kt    | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/xiaoqu/watch/device/nfc/FiseNfcController.kt b/app/src/main/java/com/xiaoqu/watch/device/nfc/FiseNfcController.kt
index 08edf73..05ae884 100644
--- a/app/src/main/java/com/xiaoqu/watch/device/nfc/FiseNfcController.kt
+++ b/app/src/main/java/com/xiaoqu/watch/device/nfc/FiseNfcController.kt
@@ -82,11 +82,14 @@ class FiseNfcController @Inject constructor() : NfcController {
 
                         // 非空且非全零才算有效卡号（全零=无卡贴近）
                         if (nfcId.isNotEmpty() && nfcId.any { it != '0' }) {
-                            Timber.d("NFC控制: 读到卡号 $nfcId")
+                            Timber.d("NFC控制: 读到卡号 $nfcId，停止轮询")
+                            // 读到有效卡号后立即停止轮询，避免重复回调
+                            stopScan()
                             // 切回主线程回调
                             withContext(Dispatchers.Main) {
                                 callback(nfcId)
                             }
+                            return@launch
                         }
                     }
                 } catch (e: Exception) {