应用程序关闭后未调用通知，并使用该通知重新打开

Question

使用以下代码时：

public class MainActivity extends AppCompatActivity {
    private final static AtomicInteger notificationId = new AtomicInteger(0);
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this);
        mBuilder.setSmallIcon(R.drawable.notif )
            .setColor(ContextCompat.getColor(this, R.color.colorPrimary))
            .setContentTitle("Request Received")
            .setContentText("new Notif")
            .setAutoCancel(true)
            .setDefaults(DEFAULT_LIGHTS);
        mBuilder.setContentIntent(PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_NO_CREATE));
        NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        notificationManager.notify(notificationId.incrementAndGet(), mBuilder.build());
    }
}

以下用户行为创建了一种不一致的通知方法：

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Answer 1

将代码下方移动到onResume（）方法

 NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this);
        mBuilder.setSmallIcon(R.drawable.notif )
            .setColor(ContextCompat.getColor(this, R.color.colorPrimary))
            .setContentTitle("Request Received")
            .setContentText("new Notif")
            .setAutoCancel(true)
            .setDefaults(DEFAULT_LIGHTS);
        mBuilder.setContentIntent(PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_NO_CREATE));
        NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        notificationManager.notify(notificationId.incrementAndGet(), mBuilder.build());