Question

我正在填充数据库中的微调器

    // Populating the City Spinner
    Cursor cities = db.cityList();
    startManagingCursor(cities);

    // create an array to specify which fields we want to display
    String[] from = new String[] { DBAdapter.KEY_NAME };
    // create an array of the display item we want to bind our data to
    int[] to = new int[] { android.R.id.text1 };

    Spinner cityList = (Spinner) this.findViewById(R.id.citySpiner);
    SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_spinner_item, cities, from, to);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    cityList.setAdapter(adapter);

当我尝试从这个

的微调器的选定项目中获取内容时

// Get the City
                Spinner getCity = (Spinner) findViewById(R.id.citySpiner);
                String cityName = getCity.getSelectedItem().toString();

我得到以下内容。有没有办法可以从数据库中获取城市名称或城市ID。

enter image description here

Answer 1

我认为，因为您正在使用customadapter并在适配器中提供三个列表...

只需调用getSelectedItem（）..

就无法获取所选文本

使用此：

Spinner mySpinner = (Spinner)findViewbyId(R.id.spinner);
int position = mySpinner.getSelectedItemPosition();
String Text = yourCityList[position].toString(); // dont know which list is holding the city list... 
// i didn't use any db in any of my app so cant tell you how can you get list... 
// leaving it to you... :)

希望它有所帮助......

Answer 2

只需从微调器获取适配器并从光标

获取字符串

Cursor cursor = (Cursor) myAdapter.getItem(position);
String cityName = cursor.getString(cursor.getColumnIndex(DBAdapter.KEY_NAME));

Answer 3

Get spinner selected items text?

Answer 4

    List<String> list = new ArrayList<String>();
    s = (Spinner)findViewById(R.id.spinner1);
    SQLiteDatabase sqldb = db.openDataBase();
    Cursor cr = sqldb.rawQuery("select Name from employee",null);
    if (cr.moveToFirst()) {
        do {
        list.add(cr.getString(0).toString());
        Toast.makeText(this,cr.getString(0).toString(),Toast.LENGTH_LONG).show();
        ArrayAdapter <String> a= new ArrayAdapter(this, android.R.layout.simple_spinner_item,list);
         a.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
          s.setAdapter(a);
        } while (cr.moveToNext());

      }//urvesh patel

Answer 5

我实现它的方式是这样的：

您必须将getItem（）方法强制转换为游标，因为它实际上只是返回游标而不是光标中的单个行，这很烦人。

final Cursor cursor = (Cursor) yourSpinner.getAdapter().getItem( position );

将光标移动到第一行

cursor.moveToFirst();

现在，您可以使用与最初查询的表匹配的列名来获取游标中的字符串，当使用getAdapter（）

设置上面的抓取器时

final String selectedPartUUID = cursor.getString( cursor.getColumnIndex( TABLE_COLUMN_NAME ) );

希望这会有所帮助，并希望得到任何反馈：）

Answer 6

希望这会有所帮助!!

Toast.makeText(getApplicationContext(), "getSelectedItem=" + spinnerString, Toast.LENGTH_SHORT).show();
            Toast.makeText(getApplicationContext(), "getSelectedItemPosition=" + nPos, Toast.LENGTH_SHORT).show();

Android Spinner选择的项目

6 个答案: