android - Enigmatic NullPointerException -

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i'm getting following null pointer exception. whenever click on button(which i've intent launch) . fc , nullpointer exception. because of use of text file?

logcat

    04-25 20:02:40.762: i/adreno200-eglsub(29671): <configwindowmatch:2081>: format rgba_8888.     04-25 20:02:40.772: d/memalloc(29671): /dev/pmem: mapped buffer base:0x514e1000 size:3649536 offset:3035136 fd:56     04-25 20:02:40.982: d/memalloc(29671): /dev/pmem: mapped buffer base:0x51b08000 size:4325376 offset:3710976 fd:59     04-25 20:02:41.632: i/adreno200-eglsub(29671): <configwindowmatch:2081>: format rgba_8888.     04-25 20:02:41.632: d/memalloc(29671): /dev/pmem: mapped buffer base:0x5212e000 size:4939776 offset:4325376 fd:62     04-25 20:02:41.692: d/memalloc(29671): /dev/pmem: mapped buffer base:0x52615000 size:5554176 offset:4939776 fd:68     04-25 20:02:41.712: d/memalloc(29671): /dev/pmem: unmapping buffer base:0x514e1000 size:3649536 offset:3035136     04-25 20:02:41.712: d/memalloc(29671): /dev/pmem: unmapping buffer base:0x51b08000 size:4325376 offset:3710976     04-25 20:02:42.842: d/memalloc(29671): /dev/pmem: mapped buffer base:0x513e1000 size:4325376 offset:3710976 fd:53     04-25 20:02:42.882: w/dalvikvm(29671): threadid=1: thread exiting uncaught exception (group=0x40dbb9d8)     04-25 20:02:42.902: e/androidruntime(29671): fatal exception: main     04-25 20:02:42.902: e/androidruntime(29671): java.lang.runtimeexception: unable instantiate activity componentinfo{com.dreamgoogle.gihf/com.dreamgoogle.gihf.stories}: java.lang.nullpointerexception     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activitythread.performlaunchactivity(activitythread.java:1884)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activitythread.handlelaunchactivity(activitythread.java:1985)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activitythread.access$600(activitythread.java:127)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activitythread$h.handlemessage(activitythread.java:1151)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.os.handler.dispatchmessage(handler.java:99)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.os.looper.loop(looper.java:137)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activitythread.main(activitythread.java:4476)     04-25 20:02:42.902: e/androidruntime(29671):    @ java.lang.reflect.method.invokenative(native method)     04-25 20:02:42.902: e/androidruntime(29671):    @ java.lang.reflect.method.invoke(method.java:511)     04-25 20:02:42.902: e/androidruntime(29671):    @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:816)     04-25 20:02:42.902: e/androidruntime(29671):    @ com.android.internal.os.zygoteinit.main(zygoteinit.java:583)     04-25 20:02:42.902: e/androidruntime(29671):    @ dalvik.system.nativestart.main(native method)     04-25 20:02:42.902: e/androidruntime(29671): caused by: java.lang.nullpointerexception     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activity.findviewbyid(activity.java:1965)     04-25 20:02:42.902: e/androidruntime(29671):    @ com.dreamgoogle.gihf.stories.<init>(stories.java:14)     04-25 20:02:42.902: e/androidruntime(29671):    @ java.lang.class.newinstanceimpl(native method)     04-25 20:02:42.902: e/androidruntime(29671):    @ java.lang.class.newinstance(class.java:1319)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.instrumentation.newactivity(instrumentation.java:1025)     04-25 20:02:42.902: e/androidruntime(29671):    @ android.app.activitythread.performlaunchactivity(activitythread.java:1875)

xml file

<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="wrap_content"     android:layout_height="wrap_content" >      <textview         android:id="@+id/jobsdes"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_alignparenttop="true"         android:text="@string/sj1" />  </relativelayout>

java file.

    public class stories extends activity {         textview t1 = (textview) findviewbyid(r.id.jobsdes);          @override         protected void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             setcontentview(r.layout.activity_stories);             mypageradapter adapter = new mypageradapter();             viewpager mypager = (viewpager) findviewbyid(r.id.pager1);             mypager.setadapter(adapter);             mypager.setcurrentitem(0);              t1.settext(r.raw.jobs);          }          private class mypageradapter extends pageradapter {             public int getcount() {                 return 4;             }              public object instantiateitem(view collection, int position) {                 layoutinflater inflater = (layoutinflater) collection.getcontext()                         .getsystemservice(context.layout_inflater_service);                 int resid = 0;                 switch (position) {                 case 0:                     resid = r.layout.activity_stories;                     break;                 case 1:                     resid = r.layout.sto2;                     break;                 case 2:                     resid = r.layout.sto3;                     break;                 case 3:                     resid = r.layout.sto4;                     break;                 }                 view view = inflater.inflate(resid, null);                 ((viewpager) collection).addview(view, 0);                 return view;             }              public void destroyitem(view arg0, int arg1, object arg2) {                 ((viewpager) arg0).removeview((view) arg2);             }              public boolean isviewfromobject(view arg0, object arg1) {                 return arg0 == ((view) arg1);             }              public parcelable savestate() {                 return null;             }          }      }

here's pager xml file.

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context=".stories" >      <android.support.v4.view.viewpager         android:id="@+id/pager1"         android:layout_width="match_parent"         android:layout_height="match_parent" />  </relativelayout>

access textview after setcontentview , that'll it.


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