Reputation: 505
I've successfully created a status bar notification but I want it to pop up 6 hours after the user exits the app.
I have the following code:
public class myClass extends superClass implements myinterface {
final int NOTIF_ID = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {.........}
/* more methods etc */ ......
@Override
protected void onDestroy() {
View iop = (View) findViewById(R.id.app);
sendNotification(iop);
super.onDestroy();
}
public void sendNotification(View view) {
// Use NotificationCompat.Builder to set up our notification.
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
//icon appears in device notification bar and right hand corner of notification
builder.setSmallIcon(R.drawable.ic_launcher);
// This intent is fired when notification is clicked
Intent intent = new Intent(view.getContext(), AndroidLauncher.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
// Set the intent that will fire when the user taps the notification.
builder.setContentIntent(pendingIntent);
// Large icon appears on the left of the notification
builder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher));
// Content title, which appears in large type at the top of the notification
builder.setContentTitle("Notifications Title");
// Content text, which appears in smaller text below the title
builder.setContentText("Your notification content here.");
// The subtext, which appears under the text on newer devices.
// This will show-up in the devices with Android 4.2 and above only
builder.setSubText("Tap to view documentation about notifications.");
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
// Will display the notification in the notification bar
notificationManager.notify(NOTIF_ID, builder.build());
}
A status bar notification pops up when the app is exited but I want it to popup after 6 hours since the time user exits the app. How do I go about it?
Thanks in advance!
Upvotes: 0
Views: 1253
Reputation: 23881
create a new class which will execute the alarm using pending intent and alarm manager.
long time= 6*60*60*1000; //6 hours
new Alarm_task(this, time).run();
public class Alarm_task implements Runnable{
// The android system alarm manager
private final AlarmManager am;
// Your context to retrieve the alarm manager from
private final Context context;
long alarm_time;
public Alarm_task(Context context, long time) {
this.context = context;
this.am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
this.alarm_time = time;
}
@Override
public void run() {
// Request to start are service when the alarm date is upon us
//pop up a notification into the system bar not a full activity
Intent i = new Intent("intent name");
// can create a dialog in that intent or just call the sendNotification() function
/** Creating a Pending Intent */
PendingIntent operation = PendingIntent.getActivity(getBaseContext(), 0, i, Intent.FLAG_ACTIVITY_NEW_TASK);
/** Setting an alarm, which invokes the operation at alart_time */
alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,SystemClock.elapsedRealtime() + alarm_time, operation);
}
}
define intent in your manifest file:
<activity
android:name=".Activity name"
android:label="@string/app_name" >
<intent-filter>
<action android:name="Intent name" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
now in that activity you can call Sendnotification() function during onCreate().. or show some UI according to your application
Upvotes: 2
Reputation: 2839
call this method from onDestroy
public void Remind (String title, String message)
{
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent notificationIntent = new Intent("android.media.action.DISPLAY_NOTIFICATION");
notificationIntent .PutExtra ("message", message);
notificationIntent .PutExtra ("title", title);
notificationIntent.addCategory("android.intent.category.DEFAULT");
PendingIntent broadcast = PendingIntent.getBroadcast(context, 0 , notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar cal = Calendar.getInstance();
if (android.os.Build.VERSION.SDK_INT>16)
{
alarmManager.setExact(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis()+ 6*60*60*1000, broadcast);
}else
{
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis() + 6*60*60*1000, broadcast);
}
}
Create a new JAVA file
public class Broadcast extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent1) {
String message = intent1.getStringExtra ("message");
String title = intent1.getStringExtra ("title");
// This intent is fired when notification is clicked
Intent notificationIntent = new Intent(context, AndroidLauncher.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addParentStack(AndroidLauncher.class);
stackBuilder.addNextIntent(notificationIntent);
PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
// Use NotificationCompat.Builder to set up our notification.
NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
//icon appears in device notification bar and right hand corner of notification
builder.setSmallIcon(R.mipmap.ic_launcher);
// Set the intent that will fire when the user taps the notification.
builder.setContentIntent(pendingIntent);
// Content title, which appears in large type at the top of the notification
builder.setContentTitle("Notifications Title");
// Content text, which appears in smaller text below the title
builder.setContentText("Your notification content here.");
// The subtext, which appears under the text on newer devices.
// This will show-up in the devices with Android 4.2 and above only
builder.setSubText("Tap to view documentation about notifications.");
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// Will display the notification in the notification bar
notificationManager.notify(0, builder.build());
}
Register this Receiver in Manifest
<receiver android:name=".Broadcast">
<intent-filter>
<action android:name="android.media.action.DISPLAY_NOTIFICATION" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
Upvotes: 1
Reputation: 1702
You can use an AlarmManager
to schedule a broadcast that contains your notification.
private void scheduleNotification() {
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setContentTitle("Scheduled Notification");
builder.setContentText(content);
builder.setSmallIcon(R.drawable.ic_launcher);]
Notification notification = builder.build();
Intent notificationIntent = new Intent(this, NotificationPublisher.class);
notificationIntent.putExtra(NotificationPublisher.NOTIFICATION_ID, 1);
notificationIntent.putExtra(NotificationPublisher.NOTIFICATION, notification);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
long futureInMillis = System.currentTimeMillis() + TimeUnit.HOURS.toMillis(6);
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, futureInMillis, pendingIntent);
}
Then use a BroadcastReceiver to receive the intent and show the notification.
public class NotificationPublisher extends BroadcastReceiver {
public static String NOTIFICATION_ID = "notification-id";
public static String NOTIFICATION = "notification";
public void onReceive(Context context, Intent intent) {
NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = intent.getParcelableExtra(NOTIFICATION);
int id = intent.getIntExtra(NOTIFICATION_ID, 0);
notificationManager.notify(id, notification);
}
}
Don't forget to register the receiver in your AndroidManifest.xml file.
(Source: https://gist.github.com/BrandonSmith/6679223)
Upvotes: 2
Reputation: 3874
You can do it by using alarm manager service and notification manager.
Upvotes: 0