add a broadcast receiver for refreshing media at received broadcast

app/build.gradle

@@ -43,7 +43,7 @@ ext {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:3.8.0'
+    implementation 'com.simplemobiletools:commons:3.8.1'
     implementation 'com.theartofdev.edmodo:android-image-cropper:2.6.0'
     implementation 'com.android.support:multidex:1.0.2'
     implementation 'com.google.code.gson:gson:2.8.2'

app/src/main/AndroidManifest.xml

@@ -207,5 +207,13 @@
                 <action android:name="com.android.vending.INSTALL_REFERRER"/>
             </intent-filter>
         </receiver>
+
+        <receiver
+            android:name=".receivers.RefreshMediaReceiver"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="com.simplemobiletools.REFRESH_MEDIA"/>
+            </intent-filter>
+        </receiver>
     </application>
 </manifest>

app/src/main/kotlin/com/simplemobiletools/gallery/receivers/RefreshMediaReceiver.kt

@@ -0,0 +1,16 @@
+package com.simplemobiletools.gallery.receivers
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import com.google.gson.Gson
+import com.simplemobiletools.gallery.asynctasks.GetDirectoriesAsynctask
+import com.simplemobiletools.gallery.extensions.config
+
+class RefreshMediaReceiver : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        GetDirectoriesAsynctask(context, false, false) {
+            context.config.directories = Gson().toJson(it)
+        }.execute()
+    }
+}