contentobserver

Since there is such a needed concern for an application's battery usage, ram and cpu usage, what is the expense of multiple contentobservers vs. multiple broadcastreceivers? Example 1: A service running with START_STICKY using 5 contentobservers registered/unregistered properly. Example 2: A service being fired from 5 broadcastreceivers set in the manifest. Example 3: A service running with START_STICKY using 5 registered broadcastreceivers. What is the true difference in battery usage/ram/cpu between an observer and a receiver? Can any pros chime in on this? I'm assuming 1 instance wouldn't

this is the code that i have try to get sms number when i send sms from default emulator, but it not work. just check out and tell me about that Thanx package com.SMSOberver5; import android.app.Activity; import android.database.ContentObserver; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.widget.Toast; public class SMSOberver5 extends Activity { /** Called when the activity is first created. */ Handler handler = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);

I encountered a problem when I wanted to implement volume change detection. As the change detection has to be detected in the background via Service, I can not intercept volume key presses. I've tried ContentObserver to listen for volume settings change, but it didn't worked. But I've dig a bit more, and found that my ContentObserver detects volume change when I register it like this: this.getApplicationContext().getContentResolver().registerContentObserver( android.provider.Settings.System.CONTENT_URI, true, mSettingsContentObserver ); I've tried to change the first parameter - the URI of

i am using a ContentObserver to listen for changes in the contacts database. now i realized that the onChange() method gets randomly called, even if i have not made any changes to the contacts. i suspect this is somehow related to the automatic contact syncing (even though there are no real changes to the contacts at this point). is there a possibility to get notified only if there are real changes in the contacts, made by the user? thx simon public class ContactsObserver extends ContentObserver { private final static String TAG = ContactsObserver.class.getSimpleName(); private Context ctx;

I know that there are some questions around and I've been through them all, I guess. My carrier is kind enough to offer 50 free SMS each month. Now I would like to make myself a little counter that runs in the background and notifies me whenever I reach that limit. (Yes, I am aware that there will already be apps for this). Therefore, I would like a service to be notified whenever an SMS/test msg is sent . So the way to go would be a ContentObserver . I set one up (2) and register it like that (1): (1) Uri URI = Uri.parse("content://sms/sent"); String[] columns = {"_id", "date"}; Cursor c =