我有 2 个旋转器。我正在从数据库中加载微调器数据。当我在第一个微调器中选择任何项目时,根据该项目,第二个微调器应该加载相应的数据。例如,如果在第一个微调器中选择蔬菜,那么只有蔬菜名称应该排在第二位,如果在第一个选择水果,然后水果名称应该排在第二个。如何将第一个微调器中的选定项目传递给我的自定义微调器类?我试图通过该项目,但它让我在第二个微调器的每一行都空白。这是我的代码
// Spinner click listener
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> paramAdapterView,
View paramView, int paramInt, long paramLong) {
// TODO Auto-generated method stub
label = paramAdapterView.getItemAtPosition(paramInt)
.toString();
deviceID = paramInt;
loadSpinnerData1(label);
}
private void loadSpinnerData1(String type) {
// database handler
DatabaseHandler db = new DatabaseHandler(getApplicationContext());
//getting the spinner item depending on what item selected in 1st spinner
List<String> manuft = db.getAllManuft(type);
spinner1.setAdapter(new MyAdapter1(OptionsActivity.this, R.layout.row, manuft,type));
}
我的自定义微调器类
public class MyAdapter1 extends ArrayAdapter<String>{
public MyAdapter1(Context context, int textViewResourceId, List<String> manuft, String type) {
super(context, textViewResourceId, manuft);
}
@Override
public View getDropDownView(int position, View convertView,ViewGroup parent) {
return getCustomView(position, convertView, parent, label);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return getCustomView(position, convertView, parent, label);
}
public View getCustomView(int position, View convertView, ViewGroup parent, String type) {
DatabaseHandler db = new DatabaseHandler(getApplicationContext());
List<String> manuft = db.getAllManuft(type);
LayoutInflater inflater=getLayoutInflater();
View row=inflater.inflate(R.layout.row, parent, false);
TextView label=(TextView)row.findViewById(R.id.device);
for(int i=0;i<manuft.size();i++){
label.setText(manuft.get(position));
}
return row;
}
}