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我正在开发一个简单的应用程序，当从任何应用程序修改 SMS 时通知用户我正在使用内容观察器问题是我想运行它，即使我的应用程序已关闭，所以如果我的应用程序已关闭并且某些用户将 SMS 标记为阅读他应该收到 1 条短信已修改的通知

这是我的代码

public class SMSObserver extends ContentObserver
{
    SMSLogger smsLogger;
    Context context;

    public SMSObserver(SMSLogger smsLogger, Context context) {

        super(new Handler());
        this.context=context;
        this.smsLogger = smsLogger;
    }

    @Override
    public void onChange(boolean selfChange) {

        super.onChange(selfChange);
        smsLogger.querySMS(context);
    }
}




public class SMSLogger {
    protected void querySMS(Context context) {
        Uri uriSMS = Uri.parse("content://sms/");
        Cursor cur = context.getContentResolver().query(uriSMS, null, null, null, null);
       /* cur.moveToNext(); // this will make it point to the first record, which is the last SMS sent
        String body = cur.getString(cur.getColumnIndex("body")); //content of sms
        String add = cur.getString(cur.getColumnIndex("address")); //phone num
        String time = cur.getString(cur.getColumnIndex("date")); //date
        String protocol = cur.getString(cur.getColumnIndex("protocol")); //protocol*/

        Toast.makeText(context, "Data Changed CHECK SMS" , Toast.LENGTH_SHORT).show();

    /*logging action HERE...*/
    }
}

这是注册码

知道在哪里添加这些代码行，以便在任何 SMS 更新时始终通知用户吗？

  Toast.makeText(this.getBaseContext(), "Data Changed CHECK SMS", Toast.LENGTH_SHORT).show();
        final Uri SMS_STATUS_URI = Uri.parse("content://sms");
        SMSLogger sl= new SMSLogger();

        SMSObserver smsSentObserver = new SMSObserver(sl, this.getBaseContext());
        getContentResolver().registerContentObserver(SMS_STATUS_URI, true, smsSentObserver);
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1 回答 1

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You can Create a service and let it run on the foreground to avoid the random killing by the system

private void startServiceAsForeground() {
        Intent intent = new Intent(MyServiceService.this, targetActivity.class);
        startForeground(ONGOING_NITIFICATION_ID, creatOngoingNotificationObject(getString(R.string.ongoing_message_ok), intent));

    }

    private void updateServiceForegroundMessage(String message, Intent intent) {
        startForeground(ONGOING_NITIFICATION_ID, creatAntiDistractionOngoingNotificationObject(message, intent));
    }

    private android.app.Notification creatOngoingNotificationObject(String messageBody, Intent intent) {
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(MyServiceService.this).setSmallIcon(R.drawable.ic_launcher_gray)
                .setContentTitle(getString(R.string.app_name)).setAutoCancel(false).setOngoing(true).setContentText(messageBody);
        // Intent intent = new Intent(MainService.this, intentClass );
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent pIntent = PendingIntent.getActivity(MyServiceService.this, 0, intent, 0);
        mBuilder.setContentIntent(pIntent);
        return mBuilder.build();
    }

And insert your code to the service and then you are guaranteed to intercept any incomming/outgoing message even if your application is not on the foreground because your service will be running all the time and the user will be aware of it .

于 2014-05-12T07:05:29.720 回答