Android example source code file (PickContact.java)

This example Android source code file (PickContact.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

activity, android, app, application, cursor, intent, onclicklistener, os, override, pickcontact, provider, resultdisplayer, selected, string, toast, ui, uri

The PickContact.java Android example source code

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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.content;

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.SystemClock;
import android.os.Bundle;
import android.provider.BaseColumns;
import android.provider.ContactsContract;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

import java.util.Calendar;

/**
 * Demonstrates launching the contacts app to pick a contact.  Does not
 * require permission to read contacts, as that permission will be granted
 * when the selected contact is returned.
 */
public class PickContact extends Activity {
    Toast mToast;
    ResultDisplayer mPendingResult;

    class ResultDisplayer implements OnClickListener {
        String mMsg;
        String mMimeType;
        
        ResultDisplayer(String msg, String mimeType) {
            mMsg = msg;
            mMimeType = mimeType;
        }
        
        public void onClick(View v) {
            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.setType(mMimeType);
            mPendingResult = this;
            startActivityForResult(intent, 1);
        }
    }
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.pick_contact);

        // Watch for button clicks.
        ((Button)findViewById(R.id.pick_contact)).setOnClickListener(
                new ResultDisplayer("Selected contact",
                        ContactsContract.Contacts.CONTENT_ITEM_TYPE));
        ((Button)findViewById(R.id.pick_person)).setOnClickListener(
                new ResultDisplayer("Selected person",
                        "vnd.android.cursor.item/person"));
        ((Button)findViewById(R.id.pick_phone)).setOnClickListener(
                new ResultDisplayer("Selected phone",
                        ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE));
        ((Button)findViewById(R.id.pick_address)).setOnClickListener(
                new ResultDisplayer("Selected address",
                        ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE));
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (data != null) {
            Uri uri = data.getData();
            if (uri != null) {
                Cursor c = null;
                try {
                    c = getContentResolver().query(uri, new String[] { BaseColumns._ID },
                            null, null, null);
                    if (c != null && c.moveToFirst()) {
                        int id = c.getInt(0);
                        if (mToast != null) {
                            mToast.cancel();
                        }
                        String txt = mPendingResult.mMsg + ":\n" + uri + "\nid: " + id;
                        mToast = Toast.makeText(this, txt, Toast.LENGTH_LONG);
                        mToast.show();
                    }
                } finally {
                    if (c != null) {
                        c.close();
                    }
                }
            }
        }
    }
}