Okay.
Here's a simple solution.
Put a thread in your activity (independent class) and have it act as the timer.
Make your activity implement Runnable.
When the timer elapses, use a Handler to call the run() method of your activity. This will ensure it is running on the UI thread, and you will be able to switch views.
Here's a trivial example. I have 2 views, main and main2.
public class ViewSwitch extends Activity implements Runnable {
switcher s;
Thread th;
Handler handler = new Handler();
int whichView = 0;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
s = new switcher(this, handler);
(th = new Thread(s)).start();
}
/**
* This class will implement the timer, calling run() on the UI thread
* each time the timer elapses.
*/
public class switcher implements Runnable {
private boolean _running = true;
private Handler _handler;
private Runnable _runnable;
public switcher(Runnable runnable, Handler handler) {
_runnable = runnable;
_handler = handler;
}
public void setRunning(boolean running) {
_running = running;
}
public void run() {
while(_running) {
try { Thread.sleep( 1000 ); } catch(InterruptedException ex) {}
if( _running ) _handler.post( _runnable );
}
}
}
/**
* Now on UI thread. Switch views.
*/
public void run() {
switch( whichView ) {
case 0:
setContentView( R.layout.main2 );
whichView = 1;
break;
case 1:
setContentView( R.layout.main );
whichView = 0;
break;
}
}
}
Scott
