List2.java

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The file containing the source code shown below is located in the corresponding directory in <sdk>/samples/android-<version>/...

/*
 * Copyright (C) 2007 The Android开源工程
 *
 * 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 com.example.android.apis.view;

import android.app.ListActivity;
import android.database.Cursor;
import android.provider.ContactsContract.Contacts;
import android.os.Bundle;
import android.widget.ListAdapter;
import android.widget.SimpleCursorAdapter;

/**
 * A list view example where the
 * data comes from a cursor.
 */
public class List2 extends ListActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Get a cursor with all people
        Cursor c = getContentResolver().query(Contacts.CONTENT_URI,
                CONTACT_PROJECTION, null, null, null);
        startManagingCursor(c);

        ListAdapter adapter = new SimpleCursorAdapter(this,
                // Use a template that displays a text view
                android.R.layout.simple_list_item_1,
                // Give the cursor to the list adatper
                c,
                // Map the NAME column in the people database to...
                new String[] {Contacts.DISPLAY_NAME},
                // The "text1" view defined in the XML template
                new int[] {android.R.id.text1});
        setListAdapter(adapter);
    }

    private static final String[] CONTACT_PROJECTION = new String[] {
        Contacts._ID,
        Contacts.DISPLAY_NAME
    };
}