Refresh content in Tab of TabActivity
<p>I have a tab with an intent as its content:</p>

<pre><code>    tabHost.addTab(tabHost.newTabSpec("tab3")
            .setIndicator("Chart")              
            .setContent(lineChartIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)));  
</code></pre>

<p>How is it possible to refresh the content of a tab? I am thinking of a method like</p>

<pre><code>tab.refreshContent()
</code></pre>

<p>or similar. Background is: My intent contains a graph and I want to repaint this graph upon click of a button while the tab remains selected. Thanks.</p>
