How to receive email from gmail android

Question

I am new to android programming.

I got my app with Gmail account sends emails. What I need now is how to receive new emails from G mail? Or at least how to get a not

Answer 1

You need to first grant permission to "Notification accept " so your app can receive any notifications from device apps.

You need to follow the steps below to enable the "Notification accept" permission:

Setting => Apps => Special access => Notification accept

You need to give your application permission in AndroidManifest.xml:

Then, you write down the conditions to only receive notifications for new email notifications

/* This is the class that helps you receive notifications when there are new emails */
public class UINotificationService extends NotificationListenerService {

    @Override
    public void onCreate()
    {
        super.onCreate(); 
    }

@Override

public void onNotificationPosted(StatusBarNotification sbn)
{

    // Get notification of new messages of the Gmail app com.google.android.gm
    if (sbn.getPackageName().equals("com.google.android.gm"))
    {

       /* What you need to handle when a new email is here */
       Bundle extras = sbn.getNotification().extras;
                if (!contentGmail.equals(extras.getCharSequence("android.bigText").toString()))
                {
                    contentGmail = Objects.requireNonNull(extras.getCharSequence("android.bigText")).toString();

                    // This is the recipient's Gmail name information.
                    String mreceiver = extras.getString("android.subText");

                    // This is the sender's name.
                    String mSender = extras.getString("android.title");

                    // This is the Email subject.
                    String mSubject = Objects.requireNonNull(extras.getCharSequence("android.text")).toString();

                    // This is the text of this new mail.
                    String mContent = Objects.requireNonNull(extras.getCharSequence("android.bigText")).toString();

                    //Notification.EXTRA_TEXT
                    time = sbn.getPostTime() / 1000;
                    Log.i("tsMail", "Sender = " + mSender + " Receiver= " + receiver + " Content Gmail= " + mContent );

                    }
                }

    }
}

@Override
public void onNotificationRemoved(StatusBarNotification sbn) {
    Log.i("Msg","Notification Removed");
    }
}