From c4827360ea9fd77106654af583f4d12b1d28a7db Mon Sep 17 00:00:00 2001
From: erichuyuehu <erichuyuehu@tencent.com>
Date: Mon, 21 Aug 2023 10:58:50 +0800
Subject: [PATCH] =?UTF-8?q?feat:=E4=BF=AE=E6=94=B9=E8=BF=9B=E5=85=A5?=
 =?UTF-8?q?=E5=90=8E=E5=8F=B0=E6=B8=85=E9=99=A4=E7=BC=93=E5=AD=98=E9=80=BB?=
 =?UTF-8?q?=E8=BE=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 MSDKDns/CacheManager/MSDKDnsNetworkManager.m | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/MSDKDns/CacheManager/MSDKDnsNetworkManager.m b/MSDKDns/CacheManager/MSDKDnsNetworkManager.m
index 027697f..92532c7 100644
--- a/MSDKDns/CacheManager/MSDKDnsNetworkManager.m
+++ b/MSDKDns/CacheManager/MSDKDnsNetworkManager.m
@@ -95,11 +95,13 @@ - (instancetype)init
                                                         usingBlock:^(NSNotification *note)
              {
                 BOOL expiredIPEnabled = [[MSDKDnsParamsManager shareInstance] msdkDnsGetExpiredIPEnabled];
-                if (!expiredIPEnabled) {
+                BOOL persistCacheIPEnabled = [[MSDKDnsParamsManager shareInstance] msdkDnsGetPersistCacheIPEnabled];
+                if (!expiredIPEnabled && !persistCacheIPEnabled) {
                     MSDKDNSLOG(@"Application did enter background,clear MSDKDns cache");
-                    //进入后台时清除缓存，暂停网络监测
+                    //进入后台时清除缓存，排除开启了持久化缓存或者开启了使用过期缓存IP的情况
                     [[MSDKDnsManager shareInstance] clearAllCache];
                 }
+                //进入后台时，暂停网络监测
                 [self.reachability stopNotifier];
             }];