线程新手。 SQL 新手。刚开始获取联系信息。所以我当然迷路了。如果我正确阅读此 logcat，它会告诉我:列 data1 不存在，或者我正在寻找错误的信息。不幸的是，这是一条“从我的错误中吸取教训”的学习之路，我无法理解这一点。非常感谢任何帮助。

此处的目标是获取联系人的姓名、电话号码和电子邮件(通过联系人 ID 匹配信息)。

日志:

06-22 21:15:44.700: E/AndroidRuntime(1662): FATAL EXCEPTION: Thread-120
06-22 21:15:44.700: E/AndroidRuntime(1662): java.lang.IllegalArgumentException: Invalid column data1
06-22 21:15:44.700: E/AndroidRuntime(1662):     at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:167)
06-22 21:15:44.700: E/AndroidRuntime(1662):     at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:137)
06-22 21:15:44.700: E/AndroidRuntime(1662):     at android.content.ContentProviderProxy.query(ContentProviderNative.java:366)
06-22 21:15:44.700: E/AndroidRuntime(1662):     at android.content.ContentResolver.query(ContentResolver.java:372)
06-22 21:15:44.700: E/AndroidRuntime(1662):     at android.content.ContentResolver.query(ContentResolver.java:315)
06-22 21:15:44.700: E/AndroidRuntime(1662):     at sat.tuts4mobile.customlistview.ContactDetails$1.run(ContactDetails.java:53)
06-22 21:15:44.700: E/AndroidRuntime(1662):     at java.lang.Thread.run(Thread.java:856)

代码(提取联系人 ID 0 的信息):

import android.app.Activity;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.widget.TextView;

/**
 * Created by Pete on 6/19/13.
 */
public class ContactDetails extends Activity {

    TextView tvContactName, tvPhoneNum, tvPhoneType, tvPhoneFull,
            tvEmailAdd, tvEmailType, tvEmailFull,
            tvAddress, tvAddType, tvAddFull;

    String contactId, contactName, phoneType, phoneFull, phoneNum1,
            emailAdd, emailType, emailFull,
            address, addType, addFull;

    //Contact List query arguments
    Uri uri;
    String[] projection, selectionArgs;
    String selection, sortOrder;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.contactinfo);
        initialize();
        contactId = getIntent().getStringExtra("contactId");
        contactName = getIntent().getStringExtra("contactName");
        new Thread(new Runnable() {
            @Override
            public void run() {
                uri = ContactsContract.Contacts.CONTENT_URI;
                projection = new String[] {
                        ContactsContract.Data.DISPLAY_NAME,
                        ContactsContract.CommonDataKinds.Phone.NUMBER
                };
                selection = ContactsContract.Data.CONTACT_ID + 
                        " = " + contactId + " AND " +
                        ContactsContract.Data.MIMETYPE + " = '" +
                        ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE + "'";

                selectionArgs = null;
                sortOrder = null;
                // Create cursor searching for data associated with contactId
                if (contactId != null) {
                    // Return all the PHONE data for the contact
                    Cursor cursor = getContentResolver().query(
                            uri, projection, selection, selectionArgs, sortOrder);

                    //Get the indexes of the required columns
                    while (cursor.moveToNext()) {
                        // Extract the name
                        contactName = cursor.getString(
                                cursor.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
                        tvContactName.setText(contactName);
                        // Extract the phone number
                        phoneFull = cursor.getString(
                                cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    }
                    tvPhoneFull.post(new Runnable() {
                        @Override
                        public void run() {
                            // TODO Auto-generated method stub
                            tvPhoneFull.setText(phoneFull);
                        }
                    });
                    cursor.close();
                }
            }
        }).start();

        new Thread(new Runnable() {
            @Override
            public void run() {
                uri = ContactsContract.CommonDataKinds.Email.CONTENT_URI;
                projection = null;
                selection = ContactsContract.CommonDataKinds.Email.CONTACT_ID + 
                        " = " + contactId + " AND " +
                        ContactsContract.Data.MIMETYPE + " = '" +
                        ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE + "'";

                selectionArgs = null;
                sortOrder = null;
                Cursor emailCursor = getContentResolver().query(
                        uri, projection, selection, selectionArgs, sortOrder);
                while (emailCursor.moveToNext()) {
                    // Extract email address
                    emailFull = emailCursor.getString(
                            emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
                }
                tvPhoneFull.post(new Runnable() {
                    @Override
                    public void run() {
                        tvEmailFull.setText(emailFull);
                    }
                });
                emailCursor.close();
            }
        }).start();
    }
    public void initialize() {
        tvContactName = (TextView)findViewById(R.id.tvContactName);
        tvPhoneNum = (TextView)findViewById(R.id.tvPhoneNum);
        tvPhoneType = (TextView)findViewById(R.id.tvPhoneType);
        tvPhoneFull = (TextView)findViewById(R.id.tvPhoneFull);
        tvEmailAdd = (TextView)findViewById(R.id.tvEmailAdd);
        tvEmailType = (TextView)findViewById(R.id.tvEmailType);
        tvEmailFull = (TextView)findViewById(R.id.tvEmailFull);
        tvAddress = (TextView)findViewById(R.id.tvAddress);
        tvAddType = (TextView)findViewById(R.id.tvAddType);
        tvAddFull = (TextView)findViewById(R.id.tvAddFull);
    }
}

最佳答案

要检索电话号码，请查询 Phone.CONTENT_URI 并在您的投影中包含 Phone.NUMBER。

要检索电子邮件地址，请查询 Email.CONTENT_URI 并在您的投影中请求 Email.DATA。

它们中的任何一个还允许您在投影中包含 Contacts.DISPLAY_NAME，因为一些常见的列会自动加入。

虽然我以前没有通过 ID 检索过此数据，但我相信您的“where 子句”将是 Phone.CONTACT_ID + "= "+ contactId 和 Email.CONTACT_ID + "= "+ contactId 分别。参见 How to get contacts' phone number in Android了解更多。

关于android - Logcat 说 "invalid column data1"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17255434/