Demo app for push notification using FCM by kotlin
Notify and receive message from FCM(Firebase Could Messaging).
If you tap notification, the custom data(key/value) you set will be displayed on the screen.
Default keys are id and type.
This app is written in kotlin.
Android SDK Build Tools 25.0.3
kotlin 1.1.3-2
gradle 2.3.3
You should create new project on Firebase. Please create it on Firebase Console.
And then you'll download a google-services.json and copy this into your project's module folder, typically app/.
※ Please see this for further details.
If you want to change to custom data, you can edit pendingIntent in MyFirebaseMessagingService.
companion object {
val FCM_DATA_KEY_ID = "id"
val FCM_DATA_KEY_CUSTOM_KEY = "custom_key"
}
...
val pendingIntent = PendingIntent.getActivity(context, 0,
Intent(context, MainActivity::class.java).apply {
putExtra(ARG_ID, this@run.data[FCM_DATA_KEY_ID])
putExtra(ARG_CUSTOM_KEY, this@run.data[FCM_DATA_KEY_CUSTOM_KEY]) // You can easily change the data sent to you.
}, PendingIntent.FLAG_UPDATE_CURRENT)Then, you should edit MainActivity because to display received data.
class MainActivity : AppCompatActivity() {
companion object {
val ARG_ID = "id"
val ARG_CUSTOM_KEY = "custom_key"
}
private lateinit var binding: ActivityMainBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
binding.id.text = intent.getStringExtra(ARG_ID)
binding.type.text = intent.getStringExtra(ARG_CUSTOM_KEY)
}
}