我有一个RecyclerView必然的FirebaseRecyclerAdapter.我需要根据用户使用a设置的值更新显示的数据spinner.
像这样的东西:
FirebaseDatabase db = FirebaseDatabase.getInstance();
DatabaseReference ref = db.getReference("data");
Query query = ref.orderByChild("index").startAt(loadPreferences()).endAt(loadPreferences());
final Adapter fireAdapter = new Adapter(Model.class, R.layout.model_card, Adapter.FireViewHolder.class, query);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
String selectedIndex = String.valueOf(adapterView.getItemAtPosition(i));
savePreferences(selectedIndex);
Query newQuery = ref.orderByChild("index").startAt(selectedIndex).endAt(selectedIndex));
fireAdapter.updateQuery(newQuery); //This is what i'm looking for
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
我的适配器:
class Adapter extends FirebaseRecyclerAdapter<Model, Adapter.FireViewHolder> {
Adapter(Class<Model> modelClass, int modelLayout, …