Admob插页广告的添加

if (interstitial.isLoaded())
{
interstitial.show();

}

IllegalStateException: XXXX must be called on the main UI thread.

private static Handler handler;
private final static int HANDLER_GOTO_ADMOB = 1;
______________________________________________
handler = new Handler() {

public void handleMessage(Message msg) {
switch (msg.what) {

case HANDLER_GOTO_ADMOB:

//    显示广告
if (interstitial.isLoaded()) {
interstitial.show();

}
else
{
AdRequest adRequest = new AdRequest.Builder().build();
interstitial.loadAd(adRequest);
}
break;

case HANDLER_GOTO_OTHER:

//    隐藏广告

break;

}

}
};

________________________________________________
public static void displayInterstitial() {

Message msg = new Message();
msg.what = HANDLER_GOTO_ADMOB;
handler.sendMessage(msg);

}