Android学习记录：获取联系人

在AndroidManifest中申请读取联系人的权限

<uses-permission android:name = "android.permission.READ_CONTACTS"/>

package com.example.getcontacts;

import android.os.Bundle;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.CommonDataKinds.Photo;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.util.Log;
import android.view.Menu;
import android.view.View;

public class MainActivity extends Activity {
    private static final String[] PHONES_PROJECTION = new String[] {
            Phone.DISPLAY_NAME, Phone.NUMBER, Photo.PHOTO_ID, Phone.CONTACT_ID };
    private static final int PHONES_DISPLAY_NAME_INDEX = 0;
    private static final int PHONES_NUMBER_INDEX = 1;

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

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    public void run(View v) {
        getPhoneContacts();
    }
    private void getPhoneContacts() {
        ContentResolver resolver = this.getContentResolver();
        Cursor phoneCursor = resolver.query(Phone.CONTENT_URI,
                PHONES_PROJECTION, null, null, null);
        if (phoneCursor != null) {
            while (phoneCursor.moveToNext()) {
                String phoneNumber = phoneCursor.getString(PHONES_NUMBER_INDEX);
                String contactName = phoneCursor.getString(PHONES_DISPLAY_NAME_INDEX);
                Log.i("PHONECONTACT", "PhoneNumber:" + phoneNumber+ " ContactName:" + contactName);
            }
            phoneCursor.close();
        }
    }

}