pushing test done

@@ -9,7 +9,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/NoActionBar">
-        <activity android:name=".DetailActivity"></activity>
+        <activity android:name=".PushingActivity"></activity>
+        <activity android:name=".DetailActivity" />
         <activity android:name=".InfoActivity" />
         <activity android:name=".FavoritesActivity" />
         <activity android:name=".RecommendActivity" />
@@ -27,6 +28,8 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+
     </application>
 
 </manifest>
\ No newline at end of file

 package com.example.vip
 
+import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.widget.ImageView
 import android.widget.RatingBar
 import android.widget.TextView
+import kotlinx.android.synthetic.main.activity_info.*
 
 class InfoActivity : AppCompatActivity() {
 
@@ -22,5 +24,13 @@ class InfoActivity : AppCompatActivity() {
         profilImage.setImageResource(R.drawable.image01)
 
         //temp
+
+
+        //pushing test start
+        InfoButtonSettings.setOnClickListener {
+            var intent = Intent(this, PushingActivity::class.java)
+            startActivity(intent)
+        }
+        //pushing test end
     }
 }

+package com.example.vip
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import android.widget.Toast
+import com.google.firebase.messaging.FirebaseMessaging
+import kotlinx.android.synthetic.main.activity_pushing.*
+
+class PushingActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_pushing)
+
+
+        subscribeButton.setOnClickListener {
+            Log.d(TAG, "Subscribing to weather topic")
+            // [START subscribe_topics]
+            FirebaseMessaging.getInstance().subscribeToTopic("news")
+                .addOnCompleteListener { task ->
+                    var msg = getString(R.string.msg_subscribed)
+                    if (!task.isSuccessful) {
+                        msg = getString(R.string.msg_subscribe_failed)
+                    }
+                    Log.d(TAG, msg)
+                    Toast.makeText(baseContext, msg, Toast.LENGTH_SHORT).show()
+                }
+            // [END subscribe_topics]
+        }
+    }
+    companion object {
+
+        private const val TAG = "PushingActivity"
+    }
+}

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".PushingActivity">
+
+    <Button
+        android:id="@+id/subscribeButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="134dp"
+        android:layout_marginTop="332dp"
+        android:layout_marginEnd="189dp"
+        android:layout_marginBottom="351dp"
+        android:text="Button"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

@@ -19,5 +19,7 @@
 
     <string name="msg_token_fmt" translatable="false">InstanceID Token: %s</string>
 
+    <string name="msg_subscribed" translatable="false">success!</string>
+    <string name="msg_subscribe_failed" translatable="false">fail!</string>
 
 </resources>