How to implement a ContentObserver for call logs

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Here is the answer. Dont forget to register the content observer with this method:

registerContentObserver (Uri uri, boolean notifyForDescendents, ContentObserver observer)

And then you can create it like this.

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.getApplicationContext()
    .getContentResolver()
    .registerContentObserver(
            android.provider.CallLog.Calls.CONTENT_URI, true,
            new MyContentObserver(handler)); 
}

class MyContentObserver extends ContentObserver {
    public MyContentObserver(Handler h) {
        super(h);
    }

    @Override
    public boolean deliverSelfNotifications() {
        return true;
    }

    @Override
    public void onChange(boolean selfChange) {
        Log.d(LOG_TAG, "MyContentObserver.onChange("+selfChange+")");
        super.onChange(selfChange);

        // here you call the method to fill the list
    }
}

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