cnc.cad.mypicassso.SampleContactsActivity.java Source code

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Here is the source code for cnc.cad.mypicassso.SampleContactsActivity.java

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/*
 * Copyright (C) 2013 The Android Open Source Project
 * Copyright (C) 2013 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cnc.cad.mypicassso;

import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.widget.ListView;

import com.example.picasso.R;

import static android.provider.ContactsContract.Contacts;

public class SampleContactsActivity extends PicassoSampleActivity implements LoaderManager.LoaderCallbacks<Cursor> {
    private static final boolean IS_HONEYCOMB = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;

    private SampleContactsAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sample_contacts_activity);

        adapter = new SampleContactsAdapter(this);

        ListView lv = (ListView) findViewById(android.R.id.list);
        lv.setAdapter(adapter);
        lv.setOnScrollListener(new SampleScrollListener(this));

        getSupportLoaderManager().initLoader(ContactsQuery.QUERY_ID, null, this);
    }

    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        if (id == ContactsQuery.QUERY_ID) {
            return new CursorLoader(this, //
                    ContactsQuery.CONTENT_URI, //
                    ContactsQuery.PROJECTION, //
                    ContactsQuery.SELECTION, //
                    null, //
                    ContactsQuery.SORT_ORDER);
        }
        return null;
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        adapter.swapCursor(data);
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        adapter.swapCursor(null);
    }

    interface ContactsQuery {
        int QUERY_ID = 1;

        Uri CONTENT_URI = Contacts.CONTENT_URI;

        String SELECTION = (IS_HONEYCOMB ? Contacts.DISPLAY_NAME_PRIMARY : Contacts.DISPLAY_NAME) + "<>''" + " AND "
                + Contacts.IN_VISIBLE_GROUP + "=1";

        String SORT_ORDER = IS_HONEYCOMB ? Contacts.SORT_KEY_PRIMARY : Contacts.DISPLAY_NAME;

        String[] PROJECTION = { Contacts._ID, //
                Contacts.LOOKUP_KEY, //
                IS_HONEYCOMB ? Contacts.DISPLAY_NAME_PRIMARY : Contacts.DISPLAY_NAME, //
                IS_HONEYCOMB ? Contacts.PHOTO_THUMBNAIL_URI : Contacts._ID, //
                SORT_ORDER };

        int ID = 0;
        int LOOKUP_KEY = 1;
        int DISPLAY_NAME = 2;
    }
}