How to send parameters from a notification-click to an activity

Question

I can find a way to send parameters to my activity from my notification   I have a service that creates a notification  When the user clicks on the notification I want to open my main activity with some special parameters  E g an item id  so my activity can load and present a special item detail view  More specific  I m downloading a file  and when the file is downloaded I want the notification to have an intent that when clicked it opens my activity in a special mode  I have tried to use putExtra on my intent  but cant seem to extract it  so I think I m doing it wrong   Code from my service that creates the Notification              construct the Notification object       final Notification notif   new Notification R drawable icon  tickerText  System currentTimeMillis           final RemoteViews contentView   new RemoteViews context getPackageName    R layout custom notification layout       contentView setImageViewResource R id image  R drawable icon       contentView setTextViewText R id text  tickerText       contentView setProgressBar R id progress 100 0  false       notif contentView   contentView               Intent notificationIntent   new Intent context  Main class       notificationIntent putExtra  item id    1001        lt -- HERE I PUT THE EXTRA VALUE     PendingIntent contentIntent   PendingIntent getActivity context  0  notificationIntent  0       notif contentIntent   contentIntent       nm notify id  notif     Code from my Activity that tries to fetch the extra parameter from the notification    public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState        setContentView R layout main         Bundle extras   getIntent   getExtras        if extras    null           Log i   dd   Extra     extras getString  item id              The extras is always null and I never gets anything into my log   Btw    the onCreate is only run when my activity starts  if my activity is already started I  also want to collect the extras and present my activity according to the item id I receive   Any ideas

User · Answer

Encounter same issue here  I resolve it by using different request code  use same id as notification  while creating PendingIntent  but still don t know why this should be done   PendingIntent contentIntent   PendingIntent getActivity context    id    notificationIntent  0   notif contentIntent   contentIntent  nm notify   id    notif

User · Answer

After reading some email-lists and other forums i found that the trick seems to add som unique data to the intent   like this       Intent notificationIntent   new Intent Main this  Main class      notificationIntent putExtra  sport id    sport  id      notificationIntent putExtra  game url    gameURL  id       notificationIntent setData  Uri parse  foobar     SystemClock elapsedRealtime          I dont understand why this needs to be done  It got something to do with the intent cant be identified only by its extras

User · Answer

In your notification implementation  use a code like this   NotificationCompat Builder nBuilder   new NotificationCompat Builder this  NOTIFICATION CHANNEL ID       Intent intent   new Intent this  ExampleActivity class   intent putExtra  EXTRA KEY    value     PendingIntent pendingIntent   PendingIntent getActivity this  0  intent  PendingIntent FLAG UPDATE CURRENT   nBuilder setContentIntent pendingIntent         To Get Intent extra values in the ExampleActivity  use the following code       Intent intent   getIntent    if intent  null        String extraKey   intent getStringExtra  EXTRA KEY            VERY IMPORTANT NOTE  the Intent  putExtra   method is an Overloaded one  To get the extra key  you need to use Intent  get Type Extra   method    Note  NOTIFICATION ID and NOTIFICATION CHANNEL ID are an constants declared in ExampleActivity

User · Answer

Please use as PendingIntent while showing notification than it will be resolved   PendingIntent intent   PendingIntent getActivity this  0                  notificationIntent  PendingIntent FLAG UPDATE CURRENT    Add PendingIntent FLAG UPDATE CURRENT as last field

User · Answer

It s easy this is my solution using objects   My POJO  public class Person implements Serializable       private String name      private int age         get  amp  set      Method Notification    Person person   new Person      person setName  david hackro      person setAge 10        Intent notificationIntent   new Intent this  Person class       notificationIntent putExtra  person  person       notificationIntent setFlags Intent FLAG ACTIVITY SINGLE TOP   Intent FLAG ACTIVITY CLEAR TOP    NotificationCompat Builder builder   new NotificationCompat Builder this                   setSmallIcon R mipmap notification icon                   setAutoCancel true                   setColor getResources   getColor R color ColorTipografiaAdeudos                    setPriority 2                   setLargeIcon bm                   setTicker fotomulta getTitle                     setContentText fotomulta getMessage                     setContentIntent PendingIntent getActivity this  0  notificationIntent  PendingIntent FLAG UPDATE CURRENT                    setWhen System currentTimeMillis                     setContentTitle fotomulta getTicketText                     setDefaults Notification DEFAULT ALL     New Activity   private Person person    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity notification push       person    Person  getIntent   getSerializableExtra  person        Good Luck

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I tried everything but nothing worked   eventually came up with following solution   1- in manifest add for the activity             android launchMode  singleTop   2- while making pending intent do the following  use bundle instead of directly using intent putString   or intent putInt                        Intent notificationIntent   new Intent getApplicationContext    CourseActivity class                        Bundle bundle   new Bundle                        bundle putString Constants EXAM ID String valueOf lectureDownloadStatus getExamId                          bundle putInt Constants COURSE ID  int lectureDownloadStatus getCourseId                         bundle putString Constants IMAGE URL lectureDownloadStatus getImageUrl                          notificationIntent putExtras bundle                        notificationIntent setFlags Intent FLAG ACTIVITY CLEAR TOP                               Intent FLAG ACTIVITY SINGLE TOP                       PendingIntent contentIntent   PendingIntent getActivity getApplicationContext                                new Random   nextInt    notificationIntent                              PendingIntent FLAG UPDATE CURRENT

User · Answer

I had the similar problem my application displays message notifications  When there are multiple notifications and clicking each notification it displays that notification detail in a view message activity  I solved the problem of same extra parameters is being received in view message intent   Here is the code which fixed this  Code for creating the notification Intent    Intent notificationIntent   new Intent getApplicationContext    viewmessage class       notificationIntent putExtra  NotificationMessage   notificationMessage       notificationIntent addFlags Intent FLAG ACTIVITY SINGLE TOP   Intent FLAG ACTIVITY CLEAR TOP       PendingIntent pendingNotificationIntent   PendingIntent getActivity getApplicationContext   notificationIndex notificationIntent PendingIntent FLAG UPDATE CURRENT       notification flags    Notification FLAG AUTO CANCEL      notification setLatestEventInfo getApplicationContext    notificationTitle  notificationMessage  pendingNotificationIntent     Code for view Message Activity    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState        onNewIntent getIntent         Override public void onNewIntent Intent intent       Bundle extras   intent getExtras        if extras    null           if extras containsKey  NotificationMessage                          setContentView R layout viewmain                  extract the extra-data in the Notification             String msg   extras getString  NotificationMessage                txtView    TextView  findViewById R id txtMessage               txtView setText msg

User · Answer

Take a look at this guide  creating a notification  and to samples ApiDemos  StatusBarNotifications  and  NotificationDisplay    For managing if the activity is already running you have two ways    Add  FLAG ACTIVITY SINGLE TOP flag to the Intent when launching the activity  and then in the activity class implement  onNewIntent Intent intent  event handler  that way you can access the new intent that was called for the activity  which is not the same as just calling getIntent    this will always return the first Intent that launched your activity  Same as number one  but instead of adding a flag to the Intent you must add  singleTop  in your activity AndroidManifest xml    If you use intent extras  remeber to call PendingIntent getActivity   with the flag PendingIntent FLAG UPDATE CURRENT  otherwise the same extras will be reused for every notification

User · Answer

Maybe a bit late  but  instead of this   public void onNewIntent Intent intent       Bundle extras   intent getExtras        Log i   dbg   onNewIntent         if extras    null           Log i   dbg    Extra6 bool     extras containsKey  net dbg android fjol             Log i   dbg    Extra6 val      extras getString  net dbg android fjol                mTabsController setActiveTab TabsController TAB DOWNLOADS       Use this   Bundle extras   getIntent   getExtras    if extras   null        String value   extras getString  keyName

User · Answer

AndroidManifest xml  Include launchMode  singleTop    lt activity android name   MessagesDetailsActivity          android launchMode  singleTop          android excludeFromRecents  true            gt    SMSReceiver java  Set the flags for the Intent and PendingIntent  Intent intent   new Intent context  MessagesDetailsActivity class       intent putExtra  smsMsg   smsObject getMsg         intent putExtra  smsAddress   smsObject getAddress         intent setFlags Intent FLAG ACTIVITY SINGLE TOP   Intent FLAG ACTIVITY CLEAR TOP        PendingIntent contentIntent   PendingIntent getActivity context  notification id  intent  PendingIntent FLAG UPDATE CURRENT     MessageDetailsActivity java  onResume   - gets called everytime  load the extras   Intent intent   getIntent        String extraAddress   intent getStringExtra  smsAddress        String extraBody   intent getStringExtra  smsMsg      Hope it helps  it was based on other answers here on stackoverflow  but this is the most updated that worked for me

User · Answer

If you use   android taskAffinity  myApp widget notify activity  android excludeFromRecents  true    in your AndroidManifest xml file for the Activity to launch  you have to use the following in your intent   Intent notificationClick   new Intent context  NotifyActivity class       Bundle bdl   new Bundle        bdl putSerializable NotifyActivity Bundle myItem  myItem       notificationClick putExtras bdl       notificationClick setData Uri parse notificationClick toUri Intent URI INTENT SCHEME    myItem getId          notificationClick setFlags Intent FLAG ACTIVITY CLEAR TASK   Intent FLAG ACTIVITY NEW TASK       schlie  t tasks der app und startet einen seperaten neuen      TaskStackBuilder stackBuilder   TaskStackBuilder create context       stackBuilder addParentStack NotifyActivity class       stackBuilder addNextIntent notificationClick        PendingIntent notificationPendingIntent   stackBuilder getPendingIntent 0  PendingIntent FLAG UPDATE CURRENT       mBuilder setContentIntent notificationPendingIntent     Important is to set unique data e g  using an unique id like   notificationClick setData Uri parse notificationClick toUri Intent URI INTENT SCHEME    myItem getId

User · Answer

G day  I too can say that I tried everything mentioned in these posts and a few more from elsewhere  The  1 problem for me was that the new Intent always had a null bundle  My issue was in focusing too much on the details of  have I included  this or  that   My solution was in taking a step back from the detail and looking at the overall structure of the notification  When I did that I managed to place the key parts of the code in the correct sequence  So  if you re having similar issues check for   1  Intent notificationIntent   new Intent MainActivity this  NotificationActivity class    2a  Bundle bundle   new Bundle        I like specifying the data type much better  eg bundle putInt  2b  notificationIntent putExtras bundle   3  PendingIntent contentIntent   PendingIntent getActivity MainActivity this  WIZARD NOTIFICATION ID  notificationIntent                      PendingIntent FLAG UPDATE CURRENT   notificationIntent addFlags Intent FLAG ACTIVITY CLEAR TOP   Intent FLAG ACTIVITY SINGLE TOP   4  NotificationManagerCompat notificationManager   NotificationManagerCompat from this   5           NotificationCompat Builder nBuilder                       new NotificationCompat Builder this                               setSmallIcon R drawable ic notify                               setContentTitle title                               setContentText content                               setContentIntent contentIntent                               setDefaults Notification DEFAULT SOUND   Notification DEFAULT VIBRATE                               setAutoCancel false   false is standard  true    automatically removes the notification when the user taps it                               setColor getResources   getColor R color colorPrimary                                setCategory Notification CATEGORY REMINDER                               setPriority Notification PRIORITY HIGH                               setVisibility NotificationCompat VISIBILITY PUBLIC               notificationManager notify WIZARD NOTIFICATION ID  nBuilder build       With this sequence I get a valid bundle

User · Answer

After doing some search i got solution from android developer guide   PendingIntent contentIntent   Intent intent   new Intent this TestActivity class   intent putExtra  extra   Test    TaskStackBuilder stackBuilder   TaskStackBuilder create this    stackBuilder addParentStack ArticleDetailedActivity class    contentIntent   stackBuilder getPendingIntent 0 PendingIntent FLAG UPDATE CURRENT     To Get Intent extra value in Test Activity class you need to write following code     Intent intent   getIntent     String extra   intent getStringExtra  extra

[android] How to send parameters from a notification-click to an activity?

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