From 2c2d3e4113d33b6e6dc41515f02cabfb1dc18e17 Mon Sep 17 00:00:00 2001
From: "pengfei.zhou" <pengfeizhou@foxmail.com>
Date: Mon, 20 Apr 2020 15:03:34 +0800
Subject: [PATCH] iOS:fix timer invalid

---
 doric-iOS/Pod/Classes/Engine/DoricJSEngine.m | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m b/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m
index 97ae29b6..26f925e6 100644
--- a/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m
+++ b/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m
@@ -224,11 +224,13 @@ - (void)destroyContext:(NSString *)contextId {
 
 - (void)callbackTimer:(NSTimer *)timer {
     __weak typeof(self) _self = self;
+    if (!timer.isValid) {
+        return;
+    }
+    NSDictionary *userInfo = timer.userInfo;
+    NSNumber *timerId = [userInfo valueForKey:@"timerId"];
+    NSNumber *repeat = [userInfo valueForKey:@"repeat"];
     dispatch_async(self.jsQueue, ^() {
-        NSDictionary *userInfo = timer.userInfo;
-        NSNumber *timerId = [userInfo valueForKey:@"timerId"];
-        NSNumber *repeat = [userInfo valueForKey:@"repeat"];
-
         __strong typeof(_self) self = _self;
         @try {
             [self invokeDoricMethod:DORIC_TIMER_CALLBACK, timerId, nil];