如何在 Android 應用程式中使用 firebase 訊息傳遞?
此示例演示瞭如何在 Android 應用程式中使用 firebase 訊息傳遞
步驟 1 − 在 Android Studio 中建立一個新專案,轉到檔案 ⇒ 新建專案,並填寫所有必需的詳細資訊以建立一個新專案。
步驟 2 − 將以下程式碼新增到 src/MainActivity.java
<?xml version = "1.0" encoding = "utf-8"?> import android.os.Bundle; import android.support.v4.app.FragmentActivity; public class MainActivity extends FragmentActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }
步驟 3 − 將以下程式碼新增到 src/ MyFirebaseMessagingService.java
<?xml version = "1.0" encoding = "utf-8"?> import android.app.Notification; import android.app.NotificationChannel; import android.app.NotificationManager; import android.content.Context; import android.graphics.Color; import android.os.Build; import android.support.v4.app.NotificationCompat; import android.support.v4.content.ContextCompat; import android.util.Log; import com.google.firebase.messaging.FirebaseMessagingService; import com.google.firebase.messaging.RemoteMessage; import org.json.JSONObject; import java.util.Map; public class MyFirebaseMessagingService extends FirebaseMessagingService { @Override public void onNewToken(String s) { Log.e("NEW_TOKEN", s); } @Override public void onMessageReceived(RemoteMessage remoteMessage) { Map<String, String> params = remoteMessage.getData(); JSONObject object = new JSONObject(params); Log.e("JSON_OBJECT", object.toString()); String NOTIFICATION_CHANNEL_ID = "sairam"; long pattern[] = {0, 1000, 500, 1000}; NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); if (Build.VERSION.SDK_INT > = Build.VERSION_CODES.O) { NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Your Notifications", NotificationManager.IMPORTANCE_HIGH); notificationChannel.setDescription(""); notificationChannel.enableLights(true); notificationChannel.setLightColor(Color.RED); notificationChannel.setVibrationPattern(pattern); notificationChannel.enableVibration(true); mNotificationManager.createNotificationChannel(notificationChannel); } // to diaplay notification in DND Mode if (Build.VERSION.SDK_INT > = Build.VERSION_CODES.O) { NotificationChannel channel = mNotificationManager.getNotificationChannel(NOTIFICATION_CHANNEL_ID); channel.canBypassDnd(); } NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID); notificationBuilder.setAutoCancel(true) .setColor(ContextCompat.getColor(this, R.color.colorAccent)) .setContentTitle(getString(R.string.app_name)) .setContentText(remoteMessage.getNotification().getBody()) .setDefaults(Notification.DEFAULT_ALL) .setWhen(System.currentTimeMillis()) .setSmallIcon(R.drawable.ic_launcher_background) .setAutoCancel(true); mNotificationManager.notify(1000, notificationBuilder.build()); } }
讓我們嘗試執行應用程式。我假設你已將安卓移動裝置連線至電腦。從 Android Studio 執行應用程式,開啟專案的一個 activity 檔案,並點選工具欄中的執行 圖示。選擇移動裝置作為選項,然後檢視顯示預設螢幕的移動裝置 –
點選 此處 下載專案程式碼
廣告