findViewById allways return null

wonglik · by **wonglik** » Sun Feb 24, 2008 10:47 am

Hi All.

I have some strange problem. I have a layout in xml with id's assign to elements. While I try to get they using findViewById method I get null. Even in anddev tutorials made by copy and paste the sources from the site.

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

 
public class M5test extends Activity {
 
    public void onCreate(Bundle icicle) {
 
        super.onCreate(icicle);
 
        setContentView(R.layout.test);
 
        Button okButton = (Button)findViewById(R.id.ok_button);
 
        Button clearButton = (Button)findViewById(R.id.clear_button);
 
Parsed in 0.030 seconds,  using GeSHi 1.0.8.4

and test.xml file :

Syntax: [ Download ] [ Hide ]

Using xml Syntax Highlighting

 
 <Button id="@+id/ok_button"
 
            android:layout_width="wrap_content"
 
            android:layout_height="wrap_content"
 
            android:layout_below="@id/keyword_entry"
 
            android:layout_alignParentRight="true"
 
            android:layout_marginLeft="10px"
 
            android:text="OK" />
 
    <Button id="@+id/clear_button"
 
          android:layout_width="wrap_content"
 
            android:layout_height="wrap_content"
 
            android:layout_toLeft="@id/ok_button"
 
            android:layout_alignTop="@id/ok_button"
 
            android:text="Clear" />
 
Parsed in 0.002 seconds,  using GeSHi 1.0.8.4

anybody experienced similar problem? Is is something related to m5?

regards

wonglik · by **wonglik** » Sun Feb 24, 2008 12:29 pm

I have manage to solve this problem. In case somebody ever has similar problem , the problem was that
id attribute has been deprecated so solution is to replace id with android:id.

plusminus · by **plusminus** » Sun Feb 24, 2008 10:00 pm

Exactly. Since m5 it is [font=Courier New]android:id[/font].

Regards,
plusminus

findViewById allways return null

findViewById allways return null

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