Android - Intent manage. Old intent is resend if user open application from task-manager -

i have problem. when call finish() method activity still hold in task-manager, , if user restart task-manager activity receive old intent. if intent sent push-notification have unwanted reaction: app start process intent push-notification data.

how correctly manage push-notification intent behavior in activity avoid wrong activity state?

my app receive push-notification , form pending intent reaction on push:

       final notificationmanager mnotificationmanager = (notificationmanager) context.getsystemservice(context.notification_service);          int defaultoptions = notification.default_lights;         defaultoptions |= notification.default_sound;          intent intentaction = new intent(context, mainactivity.class);         intentaction.setflags(intent.flag_activity_clear_top | intent.flag_activity_single_top);         intentaction.putextra(bundle_collapse_key, data.getstring(bundle_collapse_key));         intentaction.setaction(custom_action);          final pendingintent pendingintent = pendingintent.getactivity(context, 0, intentaction, pendingintent.flag_update_current);         int notificationflags = notification.flag_auto_cancel;         final notification notification = new notificationcompat.builder(context).setsmallicon(r.drawable.icon_splash)                 .setcontenttitle(context.getresources().getstring(r.string.app_name))                 .setcontenttext(data.getstring(bundle_push_content_data))                 .setcontentintent(pendingintent)                 .setautocancel(true)                 .setdefaults(defaultoptions)                 .getnotification();         notification.flags |= notificationflags;         mnotificationmanager.notify(notification_id, notification); 

after user came in app push, application, obviously, receive intent custom_action , work:

private void intentprocess(intent intent) {     boolean customaction = intent.getaction().equals(gcmpushreceiver.custom_action);     if (customaction) {         //push reaction, staff intent     } else {         //no push reaction, user open activity     } } 

i call intentprocess method oncreate , onnewintent:

public class mainactivity extends fragmentactivity { //this case if app closed , user tap on push     @override     protected void oncreate(bundle savedinstancestate) {         /* ... */         intentprocess(getintent());     } //this case if app opened , user tap on push     @override     protected void onnewintent(intent intent) {         super.onnewintent(intent);         intentprocess(intent);     } } 

activity declaration in manifest:

    <activity         android:name=".ui.activity.mainactivity"         android:label="@string/app_name"         android:screenorientation="portrait"         android:windowsoftinputmode="adjustresize">         <intent-filter>             <action android:name="android.intent.action.main" />             <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity> 

try use this

int id= notificationid.getid(); final pendingintent pendingintent = pendingintent.getactivity(context, id, intentaction, pendingintent.flag_update_current);  // rest of code   notificationmanager.notify(id, notification); 

add new class

public class notificationid {  /**  * atomicinteger used in applications such atomically incremented  * counters, , cannot used replacement integer. however,  * class extend number allow uniform access tools ,  * utilities deal numerically-based classes.  */ private final static atomicinteger c = new atomicinteger(0);  /**  * method automatically incremented int value.  *   * @return  */ public static int getid() {     return c.incrementandget(); } 

}

every time notification generated creates new intent different id.

if don't want activity display/added task manager add these lines in activity tag of androidmanifest.

android:excludefromrecents="true" android:nohistory="true"