Develop Reference

Receiving explicit intents while activity is in the foreground

My app has one activity and one service. The service starts a foreground notification that has an action button that in some situations needs to tell the activity to do something besides just coming back to the front. It uses the Extras to indicate this something.
My issues are that I can't find any documentation on how to receive explicit intents other than through the "bundle" passed to onCreate() which isn't usually called because the activity could already be created.
How do you receive an intent after onCreate()?
Notification code snippet:
val actionIntent = Intent(this, MainActivity::class.java)
actionIntent.action = actionText
actionIntent.flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP
val pendingActionIntent: PendingIntent = PendingIntent.getActivity(this, 0, actionIntent, 0)
val actionCancel: NotificationCompat.Action = NotificationCompat.Action.Builder(R.drawable.ic_cancel_black_24dp,
actionText,
pendingActionIntent).build()
val notificationBuilder: NotificationCompat.Builder = NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
.setContentTitle(getText(R.string.notification_title))
.setSmallIcon(R.drawable.ic_logo_24dp)
.setContentIntent(pendingIntent)
.setOnlyAlertOnce(true)
.addAction(actionCancel)
.setContentText(text)
startForeground(ONGOING_NOTIFICATION_ID, notificationBuilder.build())

Override onNewIntent(). If the activity already exists, and an Intent is bringing it back to the foreground, that Intent is delivered to onNewIntent().

How to choice activity to open when notification clicked

Is there way to choice the activity to start just in moment of clicking notification?
I can use setContentIntent when I build notification. But being once shown it seems not possible to set or change content intent in moment of click...

The work-around I would suggest is to direct the setContentIntent to a simple activity , which handles you specific cases in the onCreate() with the needed intent of your choice.

try this
Intent intent = new Intent(this, YOURACTIVITY.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setContentIntent(pendingIntent);

Notification addAction creates button with no behavior

I am trying to add a button to my notification in android.
I use the addAction method in order to add an intent which supposes to open up the main activity (same as clicking the entire notification) but with an extra bundle with data.
this is what I have done so far:
notificationManager = (NotificationManager)this.getSystemService(NOTIFICATION_SERVICE);
//regular intent to view main activity
PendingIntent contentIntent = PendingIntent.getActivity(this,Constants.MAIN_ACTIVITY,
new Intent(this, MainActivity.class), 0);
//intent for viewing transaction dialog, within main activity using PURCHASE_DIALOG request code
Bundle bundle = new Bundle();
bundle.putParcelableArrayList(Constants.LIST, (java.util.ArrayList<? extends android.os.Parcelable>) list);
PendingIntent purchaseIntent = PendingIntent.getActivity(
this, Constants.PURCHASE_DIALOG,
new Intent(this, MainActivity.class), 0, bundle);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle(Constants.NOTIFICATION_TOPIC)
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(watchResponse.toString()))
.setAutoCancel(true)
.addAction(R.drawable.ic_launcher, "Buy", purchaseIntent)
.setContentText(message);
mBuilder.setContentIntent(contentIntent);
notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
I simply expect that my onResume in MainActivity class will be called once clicking the extra action, and there i'll be able to get the bundle trough getIntent(), yet nothing happens when I click on it. the button is clicked, but the activity remains open and my application activity wont start.

I had a very similar issue but a very different solution. Pending intent is also not fired if you have declared <service android:enabled="false"></service> in your manifest.xml file.
Replace from android:enabled="false" to android:enabled="true"
This might not be a direct issue of the problem. But if you create the service in android studio using default template it automatically adds these properties to the service.
If this does not work there is a similar question you can find here:
Android Notification Action is not fired (PendingIntent)

Android - Send notification with id

Please excuse my English, I'm French :
I've got a question about android notifications...
There is an inbox on my app and user is notified when he received a new notified.
When he click on the notification, I want to open the right activity with the right conversation so I've to pass an ID.
I've made a lot of search but I can't find...
Coul'd you help me please ?
Here my code :
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle(title)
.setAutoCancel(true)
.setContentText(text);
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(context, LandingActivity.class);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(MainActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_CANCEL_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(0, mBuilder.build());
Thanks.

In this case, you could save the ID of the conversation in the Intent that will launch your app. You do this by using extras:
resultIntent.putExtra("conversationID", "234553");
Then, in your MainActivity, you handle the case where the user has clicked on your notification:
Bundle extras = getIntent().getExtras();
if (extras != null) {
String value = extras.getString("conversationID");
//Display conversation
}

I don't know if I get your question right: If you want to start different Activities according to something you received, you have to make different Intents for those cases.
If you always want to open your LandingActivity and pass data to it, add them as extras to your Intent, see How do I pass data between Activities in Android application?.

Android PendingIntent take you to an already existing activity?

Wasn't really sure how to search for this...
I have a the following which is called whenever a job is added or removed from my queue to put a notification in the status bar:
private void showNotification()
{
int jobsize = mJobQueue.size();
int icon = (jobsize == 0) ?
android.R.drawable.stat_sys_upload_done :
android.R.drawable.stat_sys_upload;
Notification notification =
new Notification(icon, "Test", System.currentTimeMillis());
Intent intent = new Intent(this, FileManagerActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
notification.flags =
(Notification.FLAG_SHOW_LIGHTS | Notification.FLAG_AUTO_CANCEL);
notification.setLatestEventInfo(this,
"Uploading to our servers",
getString((jobsize > 0) ?
R.string.notification_active_transfers :
R.string.notification_no_transfers),
pendingIntent);
mNotifyManager.notify(NOTIFICATION, notification);
}
As it is now the behavior is this:
if the user logs out and hits the notification, it will still open a new FileManagerActivity (ops!) I could get around this by starting at my authentication activity and passing the intent up my stack in a natural order, its when the application is already running is where I have difficulties.
if the user already has the FileManagerActivity open clicking the notification will put a second instance over it. In this case, I want the currently running FileManagerActivity to recieve focus instead of launching a new instance.
How could I get the correct behavior?

I've done this before by setting my Activity to use the launch mode 'singleTop' in the Application Manifest. It will achieve the desired function, using the existing activity if one exists. In this case, onNewIntent will be called in your activity.
You'll need to check in your FileManagerActivity for authentication and start a new activity as appropriate if the user is not logged in.

I think Worked when added these:
intent.setAction(Long.toString(System.currentTimeMillis()));
PendingIntent.FLAG_UPDATE_CUR
Intent intent = new Intent(context, MyOwnActivity.class);
intent.putExtra("foo_bar_extra_key", "foo_bar_extra_value");
intent.setAction(Long.toString(System.currentTimeMillis()));
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,intent,PendingIntent.FLAG_UPDATE_CURRENT);