這裏是我使用該字符串如何使用2字符串參數從sqlite返回字符串?
String item = item1.getText().toString();
item = item.toLowerCase();
String date = getDate();
Datahelper edited = new Datahelper(this);
edited.open();
String returnedprice = edited.getprice(item,date);
String returneddetail = edited.getdetail(item,date);
edited.close();
price.setText(returnedprice);
details.setText(returneddetail);
代碼,這是我在sqlite的
public String getprice(String item ,String date) {
// TODO Auto-generated method stub
String[] columns = new String[]{KEY_ROWID, KEY_CATEGORY,KEY_DATE,KEY_PRICE,KEY_DETAILS};
String whereClause = KEY_CATEGORY + " = ? and " + KEY_DATE + " = ?";
String[] whereArgs = {item,date};
Cursor c = ourDatabase.query("DATABASE_TABLE", columns, whereClause, whereArgs, null, null, null);
if(c!=null){
String price = c.getString(c.getColumnIndex(KEY_PRICE));
return price;
}
return null;
}
public String getdetail(String item, String date) {
// TODO Auto-generated method stub
String[] columns = new String[]{KEY_ROWID, KEY_CATEGORY,KEY_DATE,KEY_PRICE,KEY_DETAILS};
String whereClause = KEY_CATEGORY + " = ? and " + KEY_DATE + " = ?";
String[] whereArgs = {item, date};
Cursor c = ourDatabase.query("DATABASE_TABLE", columns, whereClause, whereArgs, null, null, null);
if(c!=null){
String detail = c.getString(c.getColumnIndex(KEY_DETAILS));
return detail;
}
return null;
}
方法我的應用程序被使用此代碼時崩潰,,我不知道啥子是錯的代碼,如果任何人都需要我可以張貼整個代碼請幫我
你可以添加logcat嗎? – fedepaol 2013-03-10 19:28:21
@fedepaol我在Android的非常新,我不知道它在哪裏居住,,告訴我怎麼弄.. – scripter 2013-03-10 19:32:49
這是你從亞行獲得視圖在Eclipse – fedepaol 2013-03-10 19:33:17