Я пытаюсь реализовать функцию, при которой вы выбираете дату и время, и на вашем телефоне появляется уведомление. поэтому после написания некоторого кода он все еще не работает, но все выглядит нормально
Код активности
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onClick(View view) {
Calendar customCalendar = GregorianCalendar.getInstance();
DatePicker dp = findViewById(R.id.date_picker);
TimePicker picker = findViewById(R.id.time_picker);
customCalendar.set(
dp.getYear(), dp.getMonth(), dp.getDayOfMonth(), picker.getHour(), picker.getMinute(), 0);
long customTime = customCalendar.getTimeInMillis();
SimpleDateFormat sdf = new SimpleDateFormat(getString(R.string.notification_schedule_pattern), Locale.getDefault());
long currentTime = System.currentTimeMillis();
Log.d("time", "cistomTime " + customTime);
Log.d("time", "cistomTime " + currentTime);
if (customTime > currentTime) {
Data data = new Data.Builder().putInt(NOTIFICATION_ID, 0).build();
int delay = (int) (customTime - currentTime);
scheduleNotification(delay, data);
String titleNotificationSchedule = getString(R.string.notification_schedule_title);
Snackbar.make(
view,
titleNotificationSchedule + sdf
.format(customCalendar.getTime()),
LENGTH_LONG).show();
// Snackbar.make(coordinatorLayout, "Reminder set", LENGTH_LONG)
// .setAction("Action", null).show();
} else {
String errorNotificationSchedule = "Error occured";
Snackbar.make(coordinatorLayout, errorNotificationSchedule, LENGTH_LONG).show();
}
}
});
}
private void scheduleNotification(long delay, Data data) {
OneTimeWorkRequest notificationWork = new OneTimeWorkRequest.Builder(NotifyWork.class)
.setInitialDelay(delay, MILLISECONDS).setInputData(data).build();
WorkManager instanceWorkManager = WorkManager.getInstance(getApplicationContext());
instanceWorkManager.beginUniqueWork(NOTIFICATION_WORK, REPLACE, notificationWork).enqueue();
}
Worker class
public class NotifyWork extends Worker {
public static final String NOTIFICATION_ID = "notification_id";
public static final String NOTIFICATION_NAME = "Remember";
public static final String NOTIFICATION_CHANNEL = "Reminder_Channel";
public static final String NOTIFICATION_WORK = "Notification_Work";
public NotifyWork(@NonNull Context context, @NonNull WorkerParameters workerParams) {
super(context, workerParams);
}
@NonNull
@Override
public Result doWork() {
int id = getInputData().getInt(NOTIFICATION_ID, 0);
sendNotification(id);
return Result.success();
}
private void sendNotification(int id) {
NotificationManager notificationManager = (NotificationManager) getApplicationContext()
.getSystemService(Context.NOTIFICATION_SERVICE);
Bitmap bitmap = BitmapFactory.decodeResource(getApplicationContext().getResources(), R.drawable.ic_done_white_24dp);
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.putExtra(NOTIFICATION_ID, id);
String titleNotification = "Reminder";
String subtitleNotification = "Time To WakeUp";
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder notification = new NotificationCompat.Builder(getApplicationContext(), NOTIFICATION_CHANNEL)
.setLargeIcon(bitmap).setContentTitle(titleNotification)
.setContentText(subtitleNotification).setDefaults(IMPORTANCE_DEFAULT).setSound(getDefaultUri(TYPE_NOTIFICATION))
.setContentIntent(pendingIntent).setAutoCancel(true);
notification.setPriority(IMPORTANCE_MAX);
notificationManager.notify(id, notification.build());
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
Uri ringtoneManager = getDefaultUri(TYPE_NOTIFICATION);
AudioAttributes audioAttributes = new AudioAttributes.Builder().setUsage(USAGE_NOTIFICATION_RINGTONE)
.setContentType(CONTENT_TYPE_SONIFICATION).build();
NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL, NOTIFICATION_NAME, NotificationManager.IMPORTANCE_DEFAULT);
channel.enableLights(true);
channel.setLightColor(RED);
channel.enableVibration(true);
channel.setSound(ringtoneManager, audioAttributes);
notificationManager.createNotificationChannel(channel);
}
}
У меня есть DatePicker и TimePicker, когда вы выбираете дату и время и нажимаете накнопка FAB, вы получите уведомление в это конкретное время