线程新手。SQL 新手。获取联系信息的新手。所以我当然迷路了。如果我正确阅读了这个 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“从错误中吸取教训”的学习路径，我无法弄清楚这一点。很感谢任何形式的帮助。
这里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（它正在提取联系人 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);
}
}