button not getting focus
<p>i am making an application with 4 buttons in it.I want to get them the focus whenever the mouse or some pointer moves over them.But i am not able to do that.Please tell me what is the problem. The coding of buttons is as follows.</p>

<pre><code>            m_NextButton.requestFocus();
    m_PrevButton.requestFocus();
    m_SubmitButton.requestFocus();
    m_SkipButton.requestFocus();
</code></pre>

<p>The xml coding is as follows:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;selector
  xmlns:android="http://schemas.android.com/apk/res/android"&gt;
    &lt;item android:state_pressed="true" android:drawable="@drawable/button_blue"/&gt; 
    &lt;item android:state_focused="true" android:drawable="@drawable/button_blue"  /&gt; 
    &lt;item  android:drawable="@drawable/button_lightgreen" /&gt;

&lt;/selector&gt;
</code></pre>

<p>Thanks in advance.</p>
