java - Error when trying to add splash screen - android app -

i'm android newbie

i following tutorial android splash screen howto, it's little outdated, anyways.

i add new layout file splash.xml res/layout, , image drawable/mdpi, change main image mainactivity.java, ie:

setcontentview(r.layout.activity_main); 

to

setcontentview(r.layout.splash); 

being activity_main name of default layout, activity_main.xml, , splash name of other layout called splash.xml.

but application stops, says application has unfortunately stopped, , can't access it.

i don't know missing here, here's interesting code on mainactivity.java:

 protected void oncreate(bundle savedinstancestate)    {     // todo auto-generated method stub     super.oncreate(savedinstancestate);        getwindow().setformat(pixelformat.translucent);     requestwindowfeature(window.feature_no_title);     getwindow().setflags(                          windowmanager.layoutparams.flag_fullscreen,                          windowmanager.layoutparams.flag_fullscreen);      setcontentview(r.layout.splash);      relativelayout=(relativelayout) findviewbyid(r.id.containerimg);     relativelayout.setdrawingcacheenabled(true);     camerasurfaceview = (surfaceview)                                        findviewbyid(r.id.surfaceview1);   //  camerasurfaceview.setlayoutparams(new framelayout.layoutparams(640, 480));     camerasurfaceholder = camerasurfaceview.getholder();     camerasurfaceholder.addcallback(this); //    camerasurfaceholder.settype(surfaceholder.   //                                               surface_type_push_buffers);         btncapture = (button)findviewbyid(r.id.button1);     btncapture.setonclicklistener(new onclicklistener()      {          @override       public void onclick(view v)        {          // todo auto-generated method stub          camera.takepicture(camerashuttercallback,                                         camerapicturecallbackraw,                                        camerapicturecallbackjpeg);       }     });   }  

my activity_main.xml:

<framelayout 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" tools:context=".mainactivity" >  <relativelayout     android:id="@+id/containerimg"     android:layout_width="match_parent"     android:layout_height="match_parent" >          <surfaceview             android:id="@+id/surfaceview1"             android:layout_width="1276px"             android:layout_height="745px"             android:layout_centerinparent="true" />          <imageview             android:id="@+id/imageview1"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_alignbottom="@+id/surfaceview1"             android:layout_alignleft="@+id/surfaceview1"             android:layout_marginleft="20px"             android:src="@drawable/mark3" />  </relativelayout>  <button    android:id="@+id/button1"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="right|center_vertical"    android:background="@drawable/camera" />  </framelayout> 

my splash.xml:

<?xml version="1.0" encoding="utf-8"?> <linearlayout     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent">  <imageview     android:src="@drawable/splash"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:scaletype="fitxy"/> </linearlayout> 

any ideas?

maybe should use same activity_main.xml purposes, not sure...

thanks in advance!

edit

logcat:

3774-3774/com.kkoci.photo e/androidruntime﹕ fatal exception: main java.lang.runtimeexception: unable start activity     componentinfo{com.kkoci.photo/com.kkoci.photo.mainactivity}:     java.lang.nullpointerexception         @ android.app.activitythread.performlaunchactivity(activitythread.java:2245)         @ android.app.activitythread.handlelaunchactivity(activitythread.java:2295)         @ android.app.activitythread.access$700(activitythread.java:150)         @ android.app.activitythread$h.handlemessage(activitythread.java:1280)         @ android.os.handler.dispatchmessage(handler.java:99)         @ android.os.looper.loop(looper.java:175)         @ android.app.activitythread.main(activitythread.java:5279)         @ java.lang.reflect.method.invokenative(native method)         @ java.lang.reflect.method.invoke(method.java:511)         @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1102)         @ com.android.internal.os.zygoteinit.main(zygoteinit.java:869)         @ dalvik.system.nativestart.main(native method) caused by: java.lang.nullpointerexception         @ com.kkoci.photo.mainactivity.oncreate(mainactivity.java:65)         @ android.app.activity.performcreate(activity.java:5283)         @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1097)         @ android.app.activitythread.performlaunchactivity(activitythread.java:2209) @ android.app.activitythread.handlelaunchactivity(activitythread.java:2295) @ android.app.activitythread.access$700(activitythread.java:150) @ android.app.activitythread$h.handlemessage(activitythread.java:1280) @ android.os.handler.dispatchmessage(handler.java:99) @ android.os.looper.loop(looper.java:175) @ android.app.activitythread.main(activitythread.java:5279) @ java.lang.reflect.method.invokenative(native method) @ java.lang.reflect.method.invoke(method.java:511) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1102) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:869) @ dalvik.system.nativestart.main(native method) 

relativelayout=(relativelayout) findviewbyid(r.id.containerimg); relativelayout.setdrawingcacheenabled(true); camerasurfaceview = (surfaceview)findviewbyid(r.id.surfaceview1); 

these views present in activity_main xml file.. when change layout file why accessing these?