android-contentresolver

I'm doing a program to send the CallLog to a Server, I created a Service that makes a poll of the telephone status with the following method. This method is called onCreate. private void pollForCallStatus() { timer.scheduleAtFixedRate(new TimerTask() { @Override public void run() { Log.d("Poll", Integer.toString(telephonyManager.getCallState())); switch (telephonyManager.getCallState()){ case TelephonyManager.CALL_STATE_RINGING: Log.d("CallService", "ringing"); break; case TelephonyManager.CALL_STATE_OFFHOOK: callStart(); break; case TelephonyManager.CALL_STATE_IDLE: callEnd(); break; } } }, 0

I have been implementing my own custom content provider in an app A and want to query its database from a separate app B that calls ContentResolver.query(...) using the appropriate custom URI defined in A. All goes well when A has been running just before I launch B (thus A's process still running in the background). However when I kill A's process, then B fails to query A's database! I thought querying a content provider would automatically start its process so the data can be retrieved. Am I missing something? Some clarifications: I properly set up the content provider. There is no problem

I try to get all contact names and number and i'm trying to use getContentResolver but i am getting the method get content resolver () is undefined for the type this error. How can i fix it ? Here is the code below : public class ContactManager { public ArrayList<Product> getContactNumber() { Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null); while (phones.moveToNext()) { String name = phones .getString(phones .getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); String phoneNumber = phones .getString(phones

I am new to andriod domain and is in learning phase. I got couple of queries: Do we have single ContentResolver object per app? Is it a singleton object? Who manages this object lifecycle? If it's singleton, how does it handles multiple request of querying a ContentProvider? Dharmendra From Alex Lockwood's Blog - http://www.androiddesignpatterns.com/2012/06/content-resolvers-and-content-providers.html What is the Content Resolver? The Content Resolver is the single, global instance in your application that provides access to your (and other applications') content providers. The Content

I want to ask why we get this annotation: Method invocation getContext.getContentResolver() may produce NullPointerException Why is it there and not in other parts of program Fragment/Activity? That approach has been used in tutorial made by Google - here is link for ContentProvider code https://github.com/udacity/Sunshine-Version-2/blob/sunshine_master/app/src/main/java/com/example/android/sunshine/app/data/WeatherProvider.java even if you create an aplication with just a blank activity and put that method in a newly created ContentProvider it is there. Should we use getContext()

I'm writing a library class to encapsulate some of my logic in my first Android app. One of the functions which I want to encapsulate is a function which queries the address book. As such, it needs a ContentResolver . I'm trying to figure out how to keep the library functions black-boxed... that is, to avoid having each Activity pass in its own context to get a ContentResolver . Problem is I cannot for the life of me figure out how to get a ContentResolver from within my library function. I can't find an import that contains getContentResolver . Googling said to use getContext to get a Context