修复targetSDK为34时，因动态注册 Broadcast Receiver 未声明flag引起的crash

Author: WhalenSun

hub/hub-device-android/build.gradle

@@ -4,12 +4,12 @@ apply plugin: 'signing'
 
 
 android {
-    compileSdkVersion 31
+    compileSdkVersion 34
     buildToolsVersion "26.0.3"
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 31
+        targetSdkVersion 34
         versionCode 2
         versionName "1.1"
 

hub/hub-device-android/src/main/java/com/tencent/iot/hub/device/android/core/mqtt/TXAlarmPingSender.java

@@ -1,5 +1,7 @@
 package com.tencent.iot.hub.device.android.core.mqtt;
 
+import static android.content.Context.RECEIVER_NOT_EXPORTED;
+
 import android.annotation.SuppressLint;
 import android.app.AlarmManager;
 import android.app.PendingIntent;
@@ -64,7 +66,7 @@ public void start() {
         String action = TAG + TXMqttConstants.PING_SENDER + mComms.getClient().getClientId();
         TXLog.d(TAG, "Register alarmreceiver to Context " + action);
         if (mContext != null && mAlarmReceiver != null) {
-            mContext.registerReceiver(mAlarmReceiver, new IntentFilter(action));
+            mContext.registerReceiver(mAlarmReceiver, new IntentFilter(action), RECEIVER_NOT_EXPORTED);
         }
 
         int flags = PendingIntent.FLAG_UPDATE_CURRENT;