Question

android中用cursor游标取数据库数据

cursor = db.query("Bok",.......);
if(cursor.moveToFirst()){
do{
String name = cursor.getString(cursor.getColumnIndex("fromuser"));
String toname = cursor.getString(cursor.getColumnIndex("touser"));
String content = cursor.getString(cursor.getColumnIndex("content"));
String date = cursor.getString(cursor.getColumnIndex("date"));
String type = cursor.getString(cursor.getColumnIndex("type"));
}while(cursor.moveToNext());
}
假如游标到了第二个位置，现在取name 怎么判断与第一个位置中的name相同

Answer 1

把读取的数据存起来就可以了~

ArrayList<HashMap<String, Object>> temp = new ArrayList<HashMap<String,Object>>();
if(cursor.moveToFirst()){
    do{
        HashMap<String, Object> map = new HashMap<String, Object>();
        String name = cursor.getString(cursor.getColumnIndex("fromuser"));
        String toname = cursor.getString(cursor.getColumnIndex("touser"));
	String content = cursor.getString(cursor.getColumnIndex("content"));
        String date = cursor.getString(cursor.getColumnIndex("date"));
        String type = cursor.getString(cursor.getColumnIndex("type"));
        map.put("fromuser", name); 
        //其他数据同 
        temp.add(map);
    }while(cursor.moveToNext());
}
//读取数据
String name1 = temp.get(1).get("name").toString();

Answer 2

if(toname.equals(name)){
    //相同
}else{
    //不同
}

追问

判断这两个干什么。两条数据的name是否相同 跟toname什么关系