问题描述

android利用SimpleCursorAdapter获取联系人数据只能显示一部分

这是书上的一个例子，但是没能获取全部的联系人列表，只获取了一部分，求解

public class MyActivity extends ListActivity {@Overridepublic void onCreate(Bundle savedInstanceState){    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_my);    Uri allContacts=Uri.parse(""content://contacts/people"");    Cursor c;    if(Build.VERSION.SDK_INT<11){        c=managedQuery(allContacts                null                null                null                null                );    }else {        CursorLoader cursorLoader = new CursorLoader(                this                allContacts                null                null                null                null        );        c=cursorLoader.loadInBackground();    }    String[] colums=new String[]{        ContactsContract.Contacts.DISPLAY_NAME        ContactsContract.Contacts._ID    };    int []views=new int[]{            R.id.contactName            R.id.phone    };    c.moveToFirst();    SimpleCursorAdapter sca;    if(Build.VERSION.SDK_INT<11){        sca=new SimpleCursorAdapter(this R.layout.test c columsviews);    }else{        sca=new SimpleCursorAdapter(this R.layout.test c colums views CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);    }    this.setListAdapter(sca);}

}