double checking for cached fcm token

Author: psrivastav6

raven-android-sdk/build.gradle

@@ -17,10 +17,10 @@ android {
     buildToolsVersion '30.0.3'
 
     defaultConfig {
-        minSdkVersion 21
+        minSdkVersion 16
         targetSdkVersion 30
         versionCode 1
-        versionName "1.0.5"
+        versionName "1.0.6"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles 'consumer-rules.pro'
@@ -67,7 +67,7 @@ afterEvaluate {
                 // You can then customize attributes of the publication as shown below.
                 groupId = 'com.raven'
                 artifactId = 'raven-android-sdk'
-                version = '1.0.5'
+                version = '1.0.6'
             }
         }
     }

raven-android-sdk/src/main/java/com/raven/ravenandroidsdk/Constants.kt

@@ -3,6 +3,7 @@ package com.raven.ravenandroidsdk
 internal const val PREF_APP_ID = "PREF_RAVEN_APP_ID"
 internal const val PREF_USER_ID = "PREF_RAVEN_USER_ID"
 internal const val PREF_USER_DEVICE_ID = "PREF_USER_DEVICE_ID"
+internal const val PREF_USER_FCM_TOKEN = "PREF_USER_FCM_TOKEN"
 internal const val PREF_SECRET_KEY = "PREF_SECRET_KEY"
 internal const val PREF_RAVEN_USER = "PREF_RAVEN_USER"
 

raven-android-sdk/src/main/java/com/raven/ravenandroidsdk/RavenSdk.kt

@@ -148,7 +148,12 @@ object RavenSdk {
             return
         }
 
-        //check if cached token is same as the argument
+        //check if token already sent to server
+        if (Prefs.getString(PREF_USER_FCM_TOKEN, null) == token) {
+            return
+        }
+
+        //check if token already present with server
         val currentUser = getCurrentUser()
         var isUpdate = false
         for (item in currentUser?.devices ?: arrayListOf()) {

raven-android-sdk/src/main/java/com/raven/ravenandroidsdk/api/controllers/UpdateTokenController.kt

@@ -2,6 +2,7 @@ package com.raven.ravenandroidsdk.api.controllers
 
 import com.raven.ravenandroidsdk.PLATFORM
 import com.raven.ravenandroidsdk.PREF_USER_DEVICE_ID
+import com.raven.ravenandroidsdk.PREF_USER_FCM_TOKEN
 import com.raven.ravenandroidsdk.RavenSdk
 import com.raven.ravenandroidsdk.api.ApiEndpoints
 import com.raven.ravenandroidsdk.models.Device
@@ -55,6 +56,7 @@ internal class UpdateTokenController : Callback<Device?> {
             setCurrentUser(currentUser)
 
             Prefs.putString(PREF_USER_DEVICE_ID, device?.deviceSid)
+            Prefs.putString(PREF_USER_FCM_TOKEN, device?.fcmToken)
 
             callback?.onSuccess()
         } else {