android.database.cursor指数越界的异常？ [英] android.database.cursor index out of bound of exception?

问题描述

我试图获取名称，并存储在手机中的联系人类型，但得到这个例外。我得到的名字前，但得到的例外

  

android.database.CursorIndexOutOfBoundsException：指数-1尺寸为10要求

当试图检索名称和类型在一起。请帮忙。先谢谢了。

 包application.test;
进口android.app.Activity;
进口android.content.ContentResolver;
进口android.database.Cursor;
进口android.os.Bundle;进口android.provider.ContactsContract;
进口android.provider.ContactsContract.CommonDataKinds.Phone;
进口android.provider.ContactsContract.Contacts;
进口android.util.Log;公共类测试活动扩展了活动{
    / **当第一次创建活动调用。 * /
    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.main）;        的String [] =投影新的String [] {} ContactsContract.Contacts.DISPLAY_NAME;
        的String [] = projection1新的String [] {} Phone.TYPE;
        的String [] = projection2新的String [] {} ContactsContract.Contacts._ID;        ContentResolver的CR = getContentResolver（）;
        ContentResolver的NCR = getContentResolver（）;
        ContentResolver的ICR = getContentResolver（）;        光标CUR = cr.query（ContactsContract.Contacts.CONTENT_URI，投影，NULL，NULL，Contacts.DISPLAY_NAME +ASC）;
        光标ncur = ncr.query（ContactsContract.Data.CONTENT_URI，projection1，NULL，NULL，NULL）;
        光标icur = icr.query（ContactsContract.RawContacts.CONTENT_URI，projection2，NULL，NULL，Contacts._ID +ASC）;        如果（cur.getCount（）大于0＆放大器;＆放大器; ncur.getCount（）大于0＆放大器;＆放大器; icur.getCount（）大于0）
        {
            而（cur.moveToNext（）及＆放大器; ncur.moveToNext（）及＆放大器; icur.getCount（）大于0）
            {                字符串ID = icur.getString（cur.getColumnIndex（ContactsContract.Contacts._ID））;
                字符串名称= cur.getString（cur.getColumnIndex（ContactsContract.Contacts.DISPLAY_NAME））;
                字符串类型= ncur.getString（ncur.getColumnIndex（Phone.TYPE））;                如果（的Integer.parseInt（cur.getString（cur.getColumnIndex（ContactsContract.Contacts.HAS_PHONE_NUMBER）））大于0）
                {
                    光标pCur = cr.query（ContactsContract.CommonDataKinds.Phone.CONTENT_URI，空，
                                                                 ContactsContract.CommonDataKinds.Phone.CONTACT_ID +=，新的String [] {ID}，NULL）;
                    光标typecur = ncr.query（ContactsContract.CommonDataKinds.Phone.CONTENT_URI，空，
                                                                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID +=？，新的String [] {ID}，NULL）                    而（pCur.moveToNext（）及＆放大器; typecur.moveToNext（））
                    {                        Log.d（名，名）;
                        Log.d（类型，类型）;
                        pCur.close（）;
                    }
                }
            }
        }
    }
}
 

解决方案

当ü阅读它之前创建一个游标。将光标位置移动到第一位。

而（cur.moveToNext（）及＆放大器; ncur.moveToNext（）及＆放大器; icur.getCount（）> 0）

/ *移动icur第一的位置，然后读取* /

icur.moveFirst（）

它必须努力

I am trying to retrieve name and type of the contacts stored in phone, but getting this exception. I was getting the names before but getting exception

android.database.CursorIndexOutOfBoundsException: Index -1 requested with a size of 10

when tried to retrieve name and type together. Please help. Thanks in advance.

package application.test;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;

import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Contacts;
import android.util.Log;

public class TestActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        String[] projection = new String[] {ContactsContract.Contacts.DISPLAY_NAME};     
        String[] projection1=new String[]{Phone.TYPE};
        String[] projection2=new String[]{ContactsContract.Contacts._ID};

        ContentResolver cr = getContentResolver();
        ContentResolver ncr=getContentResolver();
        ContentResolver icr=getContentResolver();

        Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, projection,null, null, Contacts.DISPLAY_NAME + " ASC");
        Cursor ncur=ncr.query(ContactsContract.Data.CONTENT_URI, projection1, null, null,null);
        Cursor icur = icr.query(ContactsContract.RawContacts.CONTENT_URI, projection2,null, null, Contacts._ID + " ASC");

        if (cur.getCount() >0 && ncur.getCount()>0 && icur.getCount()>0) 
        {
            while (cur.moveToNext()&& ncur.moveToNext()&& icur.getCount()>0) 
            {

                String id = icur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
                String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                String  type=ncur.getString(ncur.getColumnIndex(Phone.TYPE));

                if (Integer.parseInt(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) 
                {
                    Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, 
                                                                 ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",new String[]{id}, null);     
                    Cursor typecur = ncr.query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,
                                                                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{id}, null)          

                    while (pCur.moveToNext()&& typecur.moveToNext())
                    {

                        Log.d("names",name);
                        Log.d("types",type);
                        pCur.close();
                    } 
                }
            }
        }
    }
}

解决方案

When u create a cursor before reading it. Move the cursor position to first.

while (cur.moveToNext()&& ncur.moveToNext()&& icur.getCount()>0)

/* move icur to first position then read */

icur.moveFirst()

It must work

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