我有一個微調器,使用下面的代碼填充,我想從微調器中獲取用戶選擇的項目。 這是最好的方法是什麼?如何使用SimpleAdapter從Spinner中獲取選定的項目位置
List<Map<String, String>> tablelist = new ArrayList<>();
SQLiteDatabase db = openOrCreateDatabase("database", MODE_PRIVATE, null);
String query = "select * from table";
Cursor ps = db.rawQuery(query, null);
while (ps.moveToNext()){
Map<String, String> datanum = new HashMap<>();
datanum.put("Id", ps.getString(ps.getColumnIndex("Id")));
datanum.put("Some", ps.getString(ps.getColumnIndex("Some")));
tablelist.add(datanum);
}
db.close();
ps.close();
SimpleAdapter spinnerAdapter = new SimpleAdapter(this, tablelist, R.layout.row_spinner, new String[] {"Id", "Some"}, new int[] {android.R.id.text1, android.R.id.text1});
spinnerAdapter.notifyDataSetChanged();
spinnerAdapter.setDropDownViewResource(R.layout.row_spinner_list);
spinner.setAdapter(spinnerAdapter);