SMS Popup: AlertDialog does not show as I get a SMS message
I see a lot of applications that do SMS popups. Why can't I get my app working? If a SMS message comes in, I would like it to popup on the screen.
Here's my code:
public class NotifySMSReceived extends Activity
{
private static final String LOG_TAG = "SMSReceiver";
public static final int NOTIFICATION_ID_RECEIVED = 0x1221;
static final String ACTION = "android.prov开发者_运维知识库ider.Telephony.SMS_RECEIVED";
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
IntentFilter filter = new IntentFilter(ACTION);
this.registerReceiver(mReceivedSMSReceiver, filter);
}
private void displayAlert()
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Are you sure you want to exit?").setCancelable(
false).setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
}).setNegativeButton("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
private final BroadcastReceiver mReceivedSMSReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (ACTION.equals(action))
{
//your SMS processing code
displayAlert();
}
}
};
}
I think problem here is with context object. From,
onReceive(Context context, Intent intent)
You should pass context received in onRecive to like..
private void displayAlert(Context context)
and then, change ,
AlertDialog.Builder builder = new AlertDialog.Builder(this);
TO
AlertDialog.Builder builder = new AlertDialog.Builder(context);
now it should work.hope this helps.
Cheers.
精彩评论