So I don't know why this code is not working. I wanted to make an "alarm" notification that would go off once a day. Just wanted to say im new to android. Thanks.
Edit: Changed up the code a bit. Alarm method executes and the notification does too, but I get this error message:
-248/? D/PowerManagerService﹕ releaseWakeLock flags=0x1 tag=AlarmManager W/ActivityManager﹕ Unable to start service Intent { flg=0x4 cmp=com.example.polakken.test/.lol (has extras) }: not found 06-13 00:00:00.825 231-267/? D/PowerManagerService﹕ acquireWakeLock flags=0x1 tag=AlarmManager 06-13 00:00:00.825 231-248/? D/PowerManagerService﹕ releaseWakeLock flags=0x1 tag=AlarmManager –
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = preferences.edit();
int i = preferences.getInt("numberoflaunches", 1);
if (i < 2) {
alarmMethod();
i++;
editor.putInt("numberoflaunches", i);
editor.commit();
}
if (savedInstanceState == null) {
splashMethod();
}
}
//...
private void alarmMethod() {
Intent intentbro = new Intent(this, lol.class);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getService(this, 0, intentbro, 0);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.HOUR, 0);
calendar.set(Calendar.AM_PM, Calendar.AM);
calendar.add(Calendar.DAY_OF_MONTH, 1);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000 * 60 * 60 * 24, pendingIntent);
Toast.makeText(MainActivity.this, "start alarm", Toast.LENGTH_LONG).show();
}
//notification class
public class lol extends Activity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
NotificationCompat.Builder b = new NotificationCompat.Builder(this);
Intent intent1 = new Intent(this.getApplicationContext(), MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 1, intent1, 0);
b.setContentText("lol");
b.setContentTitle("Default notification");
b.setSmallIcon(R.drawable.iconography_small_size);
b.setContentIntent(pIntent);
NotificationManager notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, b.build());
}
}
You are adding an extra day to your alarm. It should look like this:
...
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.HOUR_OF_DAY, 1);
calendar.set(Calendar.AM_PM, Calendar.AM);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);
...
You are calling PendingIntent pendingIntent = PendingIntent.getService(this, 0, intentbro, 0);
However, you need to declare this Service in your AndroidManifest like this:
<service android:name=".Lol" />
Also, classes in Java should be capitalized, but your Intent calls a lower-case class:
Intent intentbro = new Intent(this, lol.class);
I suggest you run static analysis on your code to see how to improve it!
Related
I am trying to change one key of the shared preferences file at the end of the day. So here is what I managed to find on the internet:
boolean alarmUp = (PendingIntent.getBroadcast(this, 0,
new Intent(this, AlarmResetFoodAdded.class),
PendingIntent.FLAG_NO_CREATE) != null);
if (!alarmUp) {
setAlarm();
}
Function setAlarm():
private void setAlarm() {
alarmMgr = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, AlarmResetFoodAdded.class);
alarmIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 14);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
alarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, alarmIntent);
}
AlarmResetFoodAdded.java:
#Override
public void onReceive(Context context, Intent intent)
{
pref = context.getSharedPreferences(AppControl.PREF, Activity.MODE_PRIVATE);
prefEditor = pref.edit();
prefEditor.putInt("foodAdded", 0);
prefEditor.commit();
}
I am testing this using the device simulator with API 28. I tried to set the time to about 13:59. Then I'd wait until about 14:01 because it is inExactRepeating, but the key foodAdded in the preferences file stay the same, even when I reopen the app.
I'm pretty sure the alarm is up because when I debug alarmUp, the value is false the first time, then when I reopen it, it is true.
I think you should use prefEditor.apply(); instead of prefEditor.commit(); in your onReceive method.
I start to combine alarm manager and notification manager on android, and this is my code:
MainActivity.java
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setReminderAlarm();
}
public void setReminderAlarm() {
Intent intent = new Intent(MainActivity.this, ReminderReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, ReminderReceiver.NOTIF_ID, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 6);
calendar.set(Calendar.MINUTE, 59);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 86400000L, pendingIntent);
}
ReminderReceiver.java
public static int NOTIF_ID = 101;
#Override
public void onReceive(Context context, Intent intent) {
showAlarmNotification(context);
}
public void showAlarmNotification(Context context) {
Intent intentClick = new Intent(context, MainActivity.class);
PendingIntent pendingClick = PendingIntent.getActivity(context, 0, intentClick, 0);
NotificationManager notificationManagerCompat = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.cinema)
.setContentTitle(title)
.setContentIntent(pendingClick)
.setContentText(message)
.setColor(ContextCompat.getColor(context, android.R.color.transparent))
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
.setSound(alarmSound)
.setAutoCancel(true);
notificationManagerCompat.notify(NOTIF_ID, builder.build());
}
Every time I run the application, the notification always appears even though I have set the time. How do I prevent that?
Thank you.
The issue is you are setting the time to current day. So if you are opening your app after 6:00, your alarm manager will immediately fire.
You need to check whether the time is over 6:00 for the current day, if yes you need to change the date to the next day:
public void setReminderAlarm() {
Intent intent = new Intent(MainActivity.this, ReminderReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, ReminderReceiver.NOTIF_ID, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
int curHr = calendar.get(Calendar.HOUR_OF_DAY);
// Checking whether current hour is over 6
if (curHr >= 6)
{
// Since current hour is over 6, setting the date to the next day
calendar.add(Calendar.DATE, 1);
}
calendar.set(Calendar.HOUR_OF_DAY, 6);
calendar.set(Calendar.MINUTE, 59);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 86400000L, pendingIntent);
}
I am trying to set an alarm within the Fragment.
AlarmManager manager = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(getActivity(), AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getService(getActivity(), 0, alarmIntent, 0);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 19);
calendar.set(Calendar.MINUTE, 23);
manager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000 * 60 * 3600, pendingIntent);
And my AlarmReceiver class is:
public class AlarmReceiver extends BroadcastReceiver {
private static final String TAG = "MainFragment";
#Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "onReceive");
Toast.makeText(context, "I'm running", Toast.LENGTH_LONG).show();
}
}
This log and toast are never shown.
In my AndroidManifest i have put
<receiver android:name=".AlarmReceiver"
android:enabled="true"
android:exported="true"></receiver>
Am I missing something? This is my first project in Android so its probably some rookie mistake.
Here is example which is working TESTED:
AlarmManager manager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(this.getApplicationContext(), AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 30);
manager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000 * 60 * 3600, pendingIntent);
If it doesn't work I can send you the working project I made.
You're using PendingIntent.getService(...), rather than the BroadcastReceiver equivalent, PendingIntent.getBroadcast(...). Which is likely the issue.
Make sure that if you set the alarm once (like on App first launch) and while waiting you make some changes in the code and install the App again your pending intent not active anymore, so you need to set the alarm again.
I am working in a Android application in which i want to show alert during shift change,Let say after every 8 hrs. How can I do it?
I have tried a lot, All are working with some major problem. Can i get a tutorial or tip how i can do it. i am giving what i have tried
public class ShiftConfirmService extends Service
{
private NotificationManager mManager;
#Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
#Override
public void onCreate()
{
// TODO Auto-generated method stub
super.onCreate();
}
#SuppressWarnings("static-access")
#Override
public void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
Intent intent1 = new Intent(this, ShiftAlert.class);
intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent1);
}
#Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
}
You can use ALARM MANAGER
Also there are some tutorials on it as follows
1)http://www.techrepublic.com/blog/android-app-builder/use-androids-alarmmanager-to-schedule-an-event/
2)http://www.javacodegeeks.com/2012/09/android-alarmmanager-tutorial.html
3) You can try this code snippet for test of 24 hrs
Intent myIntent = new Intent(ThisApp.this , myService.class);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
pendingIntent = PendingIntent.getService(ThisApp.this, 0, myIntent, 0);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 12);
calendar.set(Calendar.MINUTE, 00);
calendar.set(Calendar.SECOND, 00);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 24*60*60*1000 , pendingIntent); //set repeating every 24 hours
4)http://learnandroideasily.blogspot.in/2013/05/android-alarm-manager_31.html
5)http://khurramitdeveloper.blogspot.in/2013/06/android-alarm-manager-to-start-service.html
set the following code in the activity where you are starting your service:
Intent myIntent = new Intent(ThisApp.this , myService.class);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
pendingIntent = PendingIntent.getService(ThisApp.this, 0, myIntent, 0);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 12);
calendar.set(Calendar.MINUTE, 00);
calendar.set(Calendar.SECOND, 00);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 8*60*60*1000 , pendingIntent); //set repeating every 8 hours
One more thing, you need to make a receiver which starts your service if your device is switched off. For that you also need to make few changes in Android manifest file also.
public class MyScheduleReceiver extends BroadcastReceiver {
// Restart service every 30 seconds
private static final long REPEAT_TIME = 1000 * 300;
#Override
public void onReceive(Context context, Intent intent) {
AlarmManager service = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, YourService.class);
PendingIntent pending = PendingIntent.getBroadcast(context, 0, i, 0);
Calendar cal = Calendar.getInstance();
service.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 8*60*60*1000, pending);
// service.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
// REPEAT_TIME, pending);
}
}
Android Manifest File:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver android:name="com.fleetcare.MyScheduleReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
You can also use pending intent for particular time.
Intent intent = new Intent(this, NotificationReceiverActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, 0);
For more Android Notifications - Tutorial
I have this code:
set alarm:
public void setAlarm()
{
Calendar Calendar_Object = Calendar.getInstance();
Calendar_Object.add (Calendar.DAY_OF_YEAR, 1);
Calendar_Object.set(Calendar.HOUR_OF_DAY, 0);
Calendar_Object.set(Calendar.MINUTE, 0);
Calendar_Object.set(Calendar.SECOND, 1);
Intent myIntent = new Intent(Main.this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(Main.this,
0, myIntent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC, Calendar_Object.getTimeInMillis(),1000*60*60*24, pendingIntent);
}
Broadcast receiver:
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent myIntent = new Intent(context, NotificationService.class);
context.startService(myIntent);
}
}
the service:
public class NotificationService extends Service {
private NotificationManager mManager;
#Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
#Override
public void onCreate() {
super.onCreate();
}
#SuppressWarnings("deprecation")
#Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
mManager = (NotificationManager) this.getApplicationContext()
.getSystemService( this.getApplicationContext().NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(), ABC.class);
Notification notification = new Notification(R.drawable.ic_launcher,
"xxx", System.currentTimeMillis());
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP
| Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity(
this.getApplicationContext(), 0, intent1,
PendingIntent.FLAG_UPDATE_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(this.getApplicationContext(),
"abc", "xyz",
pendingNotificationIntent);
mManager.notify(0, notification);
}
}
after setting the alarm at 00:00:01 everything is perfect but the next time the problem is happening. the PendingIntent triggers like 6 to 8 times between the 24 hours interval. I don't remember if the time is the same for each trigger but I want it one time each day. What is wrong with the code?
This will create an alarm that will go off every day at 00:05, the important part is the AlarmManager.INTERVAL_DAY
Date date = new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 5);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
cal.add(Calendar.HOUR, 24);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, alarmIntent, 0);
mgr.cancel(pi);
mgr.setRepeating(AlarmManager.RTC, cal.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
Also, don't forget to always cancel previous similar alarms, when re-setting a new one, or else they'll all go off, old set alarms, and the new one, see above mgr.cancel(pi);