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POWhy UnCaught Exception occurs in a TabActivity?
 

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  1. POWhy UnCaught Exception occurs in a TabActivity?
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    <p>I have created a TabActivity and added TabWidget and frame to the layout.</p> <p>I have four other Activity classes with single label in each Activity. Four tabs are associated with four tabs.</p> <p>When I am trying to launch the application in emulator, I am getting the below exception</p> <blockquote> <p>09-03 23:24:43.905: ERROR/AndroidRuntime(450): java.lang.NullPointerException 09-03 23:24:43.905: ERROR/AndroidRuntime(450): at android.widget.TabHost.dispatchWindowFocusChanged(TabHost.java:295) 09-03 23:24:43.905: ERROR/AndroidRuntime(450): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) 09-03 23:24:43.905: ERROR/AndroidRuntime(450): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661)</p> </blockquote> <pre><code>public class TabHome extends TabActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TabHost tabHost=getTabHost(); TabHost.TabSpec tabSpec; Resources res=getResources(); Intent intent; intent=new Intent().setClass(this, MyMap.class); tabSpec= tabHost.newTabSpec("Maps").setIndicator("Maps",res.getDrawable(R.drawable.ic_tab_artists)).setContent(intent); tabHost.addTab(tabSpec); intent=new Intent().setClass(this, MyStash.class); tabSpec= tabHost.newTabSpec("Stash").setIndicator("Stash",res.getDrawable(R.drawable.ic_tab_artists)).setContent(intent); tabHost.addTab(tabSpec); intent=new Intent().setClass(this, MyList.class); tabSpec= tabHost.newTabSpec("List").setIndicator("List",res.getDrawable(R.drawable.ic_tab_artists)).setContent(intent); tabHost.addTab(tabSpec); intent=new Intent().setClass(this, MySearch.class); tabSpec= tabHost.newTabSpec("Search").setIndicator("Search",res.getDrawable(R.drawable.ic_tab_artists)).setContent(intent); tabHost.addTab(tabSpec); tabHost.setCurrentTab(2); } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USMduSenthil
    1. USMduSenthil
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COPlease add some code snippets from the layout and the tab activity..
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      1. POWhy UnCaught Exception occurs in a TabActivity?
      1. USDimitris Makris
    2. COCode snippet added
      singulars
      1. POWhy UnCaught Exception occurs in a TabActivity?
      1. USMduSenthil
    3. COCan you add please the xml layout and the full error log pls?
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      1. POWhy UnCaught Exception occurs in a TabActivity?
      1. USDimitris Makris
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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