How do CursorLoader automatically updates the view even if the app is inactive?

Question

I have been working on a small To-Do list app. I used CursorLoader to update the ToDolistview from a content provider. I have a written a function onNewItemAdded()

Answer 1

get a reference to your loader while initializing as follows

 Loader dayWeatherLoader = getLoaderManager().initLoader(LOADER_DAY_WEATHER, null, this);

then create a class that extends ContentObserver as follows

 class DataObserver extends ContentObserver {

    public DataObserver(Handler handler) {
        super(handler);
    }

    @Override
    public void onChange(boolean selfChange, Uri uri) {
        dayWeatherLoader.forceLoad();
    }
}

Then register content observer inside onResume lifecycle method as follows

@Override
public void onResume() {
    super.onResume();
    getContext().getContentResolver().registerContentObserver(CONTENTPROVIDERURI,true,new DayWeatherDataObserver(new Handler()));
}

Whenever there is a change in the underlying data of content provider, the onChange method of contentobserver will be called where you can ask loader to load the data again