FCM 토큰 이용해서 상대방에게 메세지 날리기 (feat.Retrofit) 3편

이제 마지막입니다 . 

 

레이아웃을 만들어 줍니다 . 

 

<?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=".MainActivity">

    <Button
        android:id="@+id/btnSend"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Send"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/etMessage"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Enter message"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toStartOf="@+id/btnSend"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/btnSend" />

    <EditText
        android:id="@+id/etToken"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Enter Token"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toStartOf="@+id/btnSend"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/etMessage"
        android:visibility="invisible" />

    <EditText
        android:id="@+id/etTitle"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Enter Title"
        android:inputType="textPersonName"
        app:layout_constraintBottom_toTopOf="@+id/etMessage"
        app:layout_constraintEnd_toStartOf="@+id/btnSend"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

 

 

MainActivity 입니다 . 

 

class MainActivity : AppCompatActivity() {

    val TAG = "MainActivity"
    private lateinit var myToken : String ?= ""

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        
        FirebaseMessaging.getInstance().token.addOnCompleteListener(OnCompleteListener { task ->
            if (!task.isSuccessful) {
                Log.w(TAG, "Fetching FCM registration token failed", task.exception)
                return@OnCompleteListener
            }
            // Get new FCM registration token
             myToken = task.result
          
            Log.d(TAG +"토큰:", myToken)  ///나의 토큰을 알수있는 Firebase 메서드 
        })

     
        btnSend.setOnClickListener {
            val title = etTitle.text.toString()
            val message = etMessage.text.toString()
            val recipientToken = myToken   /////내 토큰
            if(title.isNotEmpty() && message.isNotEmpty() && recipientToken.isNotEmpty()) {
                PushNotification(
                        NotificationData(title, message),
                       	recipientToken  
                ).also {
                    sendNotification(it)
                }
            }
        }
    }

    private fun sendNotification(notification: PushNotification) = CoroutineScope(Dispatchers.IO).launch {
        try {
            val response = RetrofitInstance.api.postNotification(notification)
            if(response.isSuccessful) {
               
            } else {
                Log.e(TAG, response.errorBody().toString())
            }
        } catch(e: Exception) {
            Log.e(TAG, e.toString())
        }
    }
}

 

 

수고하셨습니다 .   끝입니다!! 

 

이건 제가 참고한 유튜브 강의 입니다 ~

https://www.youtube.com/watch?v=HoFWPPv1ih8