android - How to navigate to a parent activity -


well when im working on , need configure action bar in app started http://developer.android.com , found looking 

public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { // respond action bar's up/home button case android.r.id.home:     navutils.navigateupfromsametask(this);     return true; } return super.onoptionsitemselected(item);}

ofcourse after adding 

<activity     android:name="com.example.myfirstapp.displaymessageactivity"     android:label="@string/title_activity_display_message"     android:parentactivityname="com.example.myfirstapp.mainactivity" >     <!-- parent activity meta-data support 4.0 , lower -->     <meta-data         android:name="android.support.parent_activity"         android:value="com.example.myfirstapp.mainactivity" /> </activity>

and the

@override public void oncreate(bundle savedinstancestate) {     ...     getactionbar().setdisplayhomeasupenabled(true); }

i did of when on program press button in action bar program crashes , here logcat

09-04 12:54:02.087: e/androidruntime(11033): fatal exception: main 09-04 12:54:02.087: e/androidruntime(11033): java.lang.illegalargumentexception: activity legendactivity not have parent activity name specified. (did forget add android.support.parent_activity <meta-data>  element in manifest?) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.support.v4.app.navutils.navigateupfromsametask(navutils.java:177) 09-04 12:54:02.087: e/androidruntime(11033):    @ com.yay.android.projects.stories.legendactivity.onoptionsitemselected(legendactivity.java:44) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.app.activity.onmenuitemselected(activity.java:2611) 09-04 12:54:02.087: e/androidruntime(11033):    @ com.android.internal.widget.actionbarview$3.onclick(actionbarview.java:206) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.view.view.performclick(view.java:4261) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.view.view$performclick.run(view.java:17356) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.os.handler.handlecallback(handler.java:615) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.os.handler.dispatchmessage(handler.java:92) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.os.looper.loop(looper.java:137) 09-04 12:54:02.087: e/androidruntime(11033):    @ android.app.activitythread.main(activitythread.java:4921) 09-04 12:54:02.087: e/androidruntime(11033):    @ java.lang.reflect.method.invokenative(native method) 09-04 12:54:02.087: e/androidruntime(11033):    @ java.lang.reflect.method.invoke(method.java:511) 09-04 12:54:02.087: e/androidruntime(11033):    @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1038) 09-04 12:54:02.087: e/androidruntime(11033):    @ com.android.internal.os.zygoteinit.main(zygoteinit.java:805) 09-04 12:54:02.087: e/androidruntime(11033):    @ dalvik.system.nativestart.main(native method)

everything said ofcourse have changed activity names corresponding names have what's problem here?

you have set parent activity inside maniifest file

<activity             android:name="com.example.mainactivity"             android:label="@string/title_activity_main"             android:parentactivityname="com.example.mainuiactivity" >             <meta-data                 android:name="android.support.parent_activity"                 android:value="com.example.sampleactivity" />         </activity>

or use support-v4 follows

navutils.navigateupto(sourceactivity, upintent);

or try solution mentioned in this post

@override public boolean onoptionsitemselected(menuitem item) {     switch (item.getitemid()) {     case android.r.id.home:         intent upintent = new intent(this, yourlistactivity.class);         if (navutils.shoulduprecreatetask(this, upintent)) {             // activity not part of application's task,             // create new task             // synthesized stack.             taskstackbuilder                     .from(this)                     .addnextintent(new intent(this, homeactivity.class))                     .addnextintent(upintent).startactivities();             finish();         } else {             // activity part of application's task,             // navigate hierarchical parent activity.             navutils.navigateupto(this, upintent);         }         return true;     } }

this best way android less api level 11


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