TabWidget NullpointerException?

Question

I am trying to create a tab widget with two tabs to open two different activities and written following layout to achieve this but it is giving me a NullPointerException.

Where is my mistake?

<?xml version="1.0" encoding="utf-8"?> 
<TabHost xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/tabhost" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 
    <LinearLayout 
        android:orientation="vertical" 
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent"> 
        <TabWidget 
            android:id="@android:id/tabs" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" /> 
        <FrameLayout 
            android:id="@android:id/tabcontent" 
            android:layout_width="fill_parent" 
            android:layout_height="fill_parent"> 
        </FrameLayout> 
    </LinearLayout> 
</TabHost>

In the Java class which is extending TabWidget I have the following code in the onCreate method:

setContentView(R.layout.more);

TabHost mTabHost = (TabHost) this.findViewById(R.id.tabhost);
mTabHost.setup();

Intent intent;

intent = new Intent().setClass(this, Settings.class);
mTabHost.addTab(mTabHost.newTabSpec("tab_test1").setIndicator(
                        "Calculator", 
                        getResources().getDrawable(R.drawable.tab01)).setContent(intent));

intent = new Intent().setClass(this, Post.class);                
mTabHost.addTab(mTabHost.newTabSpec("tab_test2").setIndicator(
                        "YouTube", 
                        getResources().getDrawable(R.drawable.tab02)).setContent(intent));

Answer 1

not much info to go on here, but check my question (and it's answers) for a potential solution
http://stackoverflow.com/questions/2209406/issues-with-android-tabhost-example

Answer 2

if you are extending your tab class using TabActivity then it is must

to use ids of tab related controls like "@android:id/tabhost"

i was using "@+id/tabhost" which is wrong but in case of extending it through Activity class its fine.

and above problem which i was facing on layout will not come...

Tab tutorial was also bit buggy it can be solved using following example. Example