android - onCreateContextMenu- NPE -


i developing code in which, context menu should pop on long-clicking list-view item.this worked don't know why npe now. please see code below , suggest.

public void displayimages(){ //some other functionality  imageadapter = new goodadapter(this, imagebeanarray);     list.setadapter(imageadapter);     list.setchoicemode(listview.choice_mode_multiple_modal);     registerforcontextmenu(list); }   @override public void oncreatecontextmenu(contextmenu menu, view v,                                 contextmenu.contextmenuinfo menuinfo) {     super.oncreatecontextmenu(menu, v, menuinfo);     menu.setheadertitle("options");     menu.add(0, v.getid(), 0, "rename");     menu.add(0,v.getid(),0,"delete"); }   @override public boolean oncontextitemselected(menuitem item) { adapterview.adaptercontextmenuinfo info = (adapterview.adaptercontextmenuinfo)item.getmenuinfo();     final imagebean imagebean = imagebeanarray.get(info.position);     final int selectedimageid= imagebean.getid();     if(item.gettitle()=="rename") {//do thing}    else if (item.gettitle()=="rename") {//do thing else}  }

layout declaration of list view:

<?xml version="1.0" encoding="utf-8"?>  <listview     android:id="@+id/listview"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:layout_below="@id/menu"     android:background="@color/white"     android:choicemode="multiplechoice"     android:cachecolorhint="#00000000"     android:scrollbars="none" />

logcat says:

e/androidruntime﹕ fatal exception: main     process: com.example.kittu.clientlync, pid: 30281     java.lang.nullpointerexception             @ com.android.internal.policy.impl.phonewindow$decorview.startactionmode(phonewindow.java:2694)             @ com.android.internal.policy.impl.phonewindow$decorview.startactionmodeforchild(phonewindow.java:2619)             @ android.view.viewgroup.startactionmodeforchild(viewgroup.java:675)             @ android.view.viewgroup.startactionmodeforchild(viewgroup.java:675)             @ android.view.viewgroup.startactionmodeforchild(viewgroup.java:675)             @ android.view.view.startactionmode(view.java:4752)             @ android.widget.abslistview.performlongpress(abslistview.java:3538)             @ android.widget.abslistview$checkforlongpress.run(abslistview.java:3494)             @ android.os.handler.handlecallback(handler.java:733)             @ android.os.handler.dispatchmessage(handler.java:95)             @ android.os.looper.loop(looper.java:146)             @ android.app.activitythread.main(activitythread.java:5487)             @ java.lang.reflect.method.invokenative(native method)             @ java.lang.reflect.method.invoke(method.java:515)             @     com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1283)             @ com.android.internal.os.zygoteinit.main(zygoteinit.java:1099)             @ dalvik.system.nativestart.main(native method)

it appears cannot use setchoicemode(listview.choice_mode_multiple_modal) in conjunction context menu. layout xml (correctly) provides android:choicemode="multiplechoice", may safely remove code override choice_mode_multiple_modal.


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