java - Activity Navigation with Notifications -

i'm writing android application , it's time implement notifications. 3 activities looking @ here mainactivity, messagelistactivity , messageactivity.

these go in simple > b > c format. b's parent set a, , c's parent set b. normal navigation works fine , expected. here manifest below:

    <activity         android:name=".activities.mainactivity"         android:label="@string/app_name"         android:launchmode="singletop"         android:screenorientation="portrait" >     </activity>      <activity         android:name=".activities.messagelistactivity"         android:icon="@drawable/ic_action_email"         android:label="@string/title_activity_text"         android:launchmode="singletop"         android:parentactivityname=".activities.mainactivity"         android:screenorientation="portrait" >         <meta-data             android:name="android.support.parent_activity"             android:value=".activities.mainactivity" />     </activity>      <activity         android:name=".activities.messageactivity"         android:icon="@drawable/ic_action_read"         android:label="@string/title_activity_text_message"         android:parentactivityname=".activities.messagelistactivity"         android:screenorientation="portrait" >         <meta-data             android:name="android.support.parent_activity"             android:value=".activities.messagelistactivity" />     </activity> 

the problem i'm trying implement notifications, if i'm out of app running service can still receive messages. when new message received popup shown , want click it, show messageactivity (c), when or pressed return messagelistactivity (b). open notification , messageactivity (c) shown expected, when press or takes me mainactivity (a). should return messagelistactivity (b) @ point!

to clarify :-

• notification appears
• user clicks it
• c opened
• user presses or up
• b should open, opens instead.

i have created backstack in notification shown below:

    intent resultintent = new intent(nursecallapplication.getcontext(), messageactivity.class);     taskstackbuilder stackbuilder = taskstackbuilder.create(nursecallapplication.getcontext());     stackbuilder.addparentstack(messageactivity.class);     stackbuilder.addnextintent(resultintent);      resultintent.putextra("messageobject", message);     pendingintent resultpendingintent = pendingintent.getactivity(nursecallapplication.getcontext(), 0, resultintent, pendingintent.flag_update_current); 

and in , button in messageactivity (c) have got:

navutils.navigateupfromsametask(this); 

at point i'm throwing kinds trying figure out forgive me if there unnecessary parts in! massivelyyy appreciated! thanks!

i think error solve :

// b -> c    when user clicks notification  stackbuilder.addparentstack(messagelistactivity.class);