如何打开新活动并通过单击Firebase通知在textview上打印通知消息

Question

我想让我的Firebase通知可点击。 单击通知后，将打开一个名为HomeActivity的新活动，我想在其中将通知消息显示为textview。

我已经添加了通知，并且运行良好。 但是，每当我单击通知时，它都会返回到mainActivity，并且不会在textview中显示该消息。 我已经尝试了一些代码，但无法正常工作。

这是我的代码，

MyFirebaseInstanceService.class

public class MyFirebaseInstanceService extends FirebaseMessagingService {


@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    super.onMessageReceived(remoteMessage);
    shownotification(remoteMessage.getNotification().getTitle(),remoteMessage.getNotification().getBody());
    String click_action = remoteMessage.getNotification().getClickAction();
    Intent i = new Intent(click_action);
    Intent in = new Intent("intentKey");
            in.putExtra("key", remoteMessage);
    LocalBroadcastManager.getInstance(getApplicationContext()).sendBroadcast(in);

    Intent intent = new Intent("com.push.message.received");
    intent.putExtra("message", remoteMessage);// Add more data as per need
    sendBroadcast(intent);

}

private void shownotification(String title,String body){
        NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
        String NOTIFICATION_CHANNEL_ID = "com.example.theroos.simplifiedmsging02.test";

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
        {
            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Notification",NotificationManager.IMPORTANCE_DEFAULT);
            notificationChannel.setDescription("SIMPLIFIED");
            notificationChannel.setLightColor(Color.BLUE);
            notificationChannel.setVibrationPattern(new long[]{0,100,500,1000});
            notificationChannel.enableLights(true);
            //notificationChannel.createNotificationChannel(notificationChannel);

        }

        Intent activityintent = new Intent(this,HomeActivity.class);
        PendingIntent contentintent = PendingIntent.getActivity(this,0,activityintent,0);



        NotificationCompat.Builder notificationbuilder = new NotificationCompat.Builder(this,NOTIFICATION_CHANNEL_ID);

        notificationbuilder.setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(R.drawable.ic_mode_comment_black_24dp)
                .setContentTitle(title)
                .setContentIntent(contentintent)
                .setContentText(body)
                .setColor(Color.BLUE)
                .setAutoCancel(true)
                .setContentInfo("Info");

        notificationManager.notify(new Random().nextInt(),notificationbuilder.build());




}

@Override
public void onNewToken(String token) {
    super.onNewToken(token);
    Log.d("TOKEN",token);
}

}

HomeActivity.class

public class HomeActivity extends AppCompatActivity {

private Button signout_button;
private TextView message_textView;
FirebaseAuth mAuth;

private BroadcastReceiver activityReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        TextView message_textview = (TextView) findViewById(R.id.message_textView);
        String message=intent.getStringExtra("message");
        message_textView.setText(message);
    }

};

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_home);
    signout_button = (Button) findViewById(R.id.signoutbutton);
    //message_textView = (TextView)findViewById(R.id.message_textView);

    //message_textView.setText(getIntent().getExtras().getString("body"));

    if (activityReceiver != null) {
        IntentFilter intentFilter = new  IntentFilter("ACTION_STRING_ACTIVITY");
        registerReceiver(activityReceiver, intentFilter);
    }

    LocalBroadcastManager.getInstance(HomeActivity.this).registerReceiver(
            activityReceiver, new IntentFilter("intentKey"));

    signout_button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            FirebaseAuth.getInstance().signOut();
            startActivity(new Intent(HomeActivity.this, MainActivity.class));
            Toast.makeText(HomeActivity.this, "Successfully Signed Out", Toast.LENGTH_SHORT).show();
        }
    });
}

   }

我不知道我做错了什么，请帮助我。 先感谢您。

Answer 1

有一些方法可以实现这一目标。 但是关于stackoverflow也有很多类似的问题。

该方法取决于您的fcm通知有效负载。 请参阅此答案。 您会找到所有想要的东西。

https://stackoverflow.com/a/40185654/7140884

Answer 2

首先，您不应该同时创建通知和发送广播消息。 尝试这个：

        public class MyFirebaseInstanceService extends FirebaseMessagingService {


    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
               NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
        String NOTIFICATION_CHANNEL_ID = "com.example.theroos.simplifiedmsging02.test";

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
        {
            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Notification",NotificationManager.IMPORTANCE_DEFAULT);
            notificationChannel.setDescription("SIMPLIFIED");
            notificationChannel.setLightColor(Color.BLUE);
            notificationChannel.setVibrationPattern(new long[]{0,100,500,1000});
            notificationChannel.enableLights(true);
            //notificationChannel.createNotificationChannel(notificationChannel);

        }

        Intent activityintent = new Intent(this,HomeActivity.class);
        PendingIntent contentintent = PendingIntent.getActivity(this,0,activityintent,0);

        NotificationCompat.Builder notificationbuilder = new NotificationCompat.Builder(this,NOTIFICATION_CHANNEL_ID);

        notificationbuilder.setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(R.drawable.ic_mode_comment_black_24dp)
                .setContentTitle(title)
                .setContentIntent(contentintent)
                .setContentText(body)
                .setColor(Color.BLUE)
                .setAutoCancel(true)
                .setContentInfo("Info");

        notificationManager.notify(new Random().nextInt(),notificationbuilder.build());

    }
....

然后，您可以为广播PendingIntent.getBroadcast(YourBroadcastReceiver..)器创建PendingIntent.getBroadcast(YourBroadcastReceiver..) ，而不是PendingIntent.getActivity ，您应该在清单中进行注册：

<receiver
    android:name="com.app.YourBroadcastReceiver"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="YourReceiverIntentFilter" />
    </intent-filter>
</receiver>

在YourBroadcastReceiver您应该获得待处理的意图，然后在活动中将广播消息发送到本地接收器。

希望能帮助到你！