Android dual sim support
<p>Does android natively support the dual sim feature?
Or is android extended by manufacturers to do so?</p>

<p>In particular, I'd like to make a sim switching app just like the ones in Samsung phones. </p>

<p>Also can anyone tell me in which system apk are the status bar and notifications located?
I'm trying to reverse engineer the Samsung sim switching feature.</p>

<p>Thanks.</p>
