I'm having an issue when I'm trying to duplicate a spinner (when a button is pressed). Following is my create.java code and my MyListAdapter.java code. Am I missing something obvious out in my code? I have been trying to follow a sample of what Mohammad did here . Thank you for the help.
create.java
public class create extends AppCompatActivity {
Button buttontest;
private LinearLayout mLinearLayout;
private ArrayList<Spinner> mSpinners;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mSpinners = new ArrayList<>();
mLinearLayout = findViewById(R.id.my_linearLayout);
mLinearLayout.addView(makeSpinner()); // First spinner
Button duplicateSpinner = findViewById(R.id.bt_duplicate);
duplicateSpinner.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Spinner spinner = makeSpinner();
mLinearLayout.addView(spinner); // Add another spinner
}
});
Button getSpinner = findViewById(R.id.bt_getSpinner);
getSpinner.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
for (int i = 0; i < mSpinners.size(); i++) { // Read all spinners
Spinner spinner = mSpinners.get(i);
Log.i("TAG", spinner.getSelectedItem().toString());
}
}
});
}
private Spinner makeSpinner() {
//opens csv
InputStream inputStream = getResources().openRawResource(R.raw.shopitems);
CSVFile csvFile = new CSVFile(inputStream);
List<String> itemList = csvFile.read();
MyListAdapter adapter = new MyListAdapter(this, R.layout.listrow, R.id.txtid, itemList);
Spinner spinner = (Spinner) findViewById(R.id.spinner);
spinner.setAdapter(adapter);
return spinner;
}
private class CSVFile {
InputStream inputStream;
public CSVFile(InputStream inputStream){
this.inputStream = inputStream;
}
public List<String> read(){
List<String> resultList = new ArrayList<String>();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
try {
String line;
while ((line = reader.readLine()) != null) {
String[] row = line.split(",");
resultList.add(row[1]);
}
}
catch (IOException e) {
Log.e("Main",e.getMessage());
}
finally {
try {
inputStream.close();
}
catch (IOException e) {
Log.e("Main",e.getMessage());
}
}
return resultList;
}
}}
mylistadapter code
public class MyListAdapter extends ArrayAdapter<String> {
int groupid;
List<String> items;
Context context;
String path;
public MyListAdapter(Context context, int vg, int id, List<String> items) {
super(context, vg, id, (List<String>) items);
this.context = context;
groupid = vg;
this.items = items;
}
static class ViewHolder {
public TextView textid;
public TextView textname;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
{
View rowView = convertView;
if (rowView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowView = inflater.inflate(groupid, parent, false);
ViewHolder viewHolder = new ViewHolder();
viewHolder.textid = (TextView) rowView.findViewById(R.id.txtid);
viewHolder.textname = (TextView) rowView.findViewById(R.id.txtname);
rowView.setTag(viewHolder);
}
// Fill data in the drop down.
ViewHolder holder = (ViewHolder) rowView.getTag();
String row = items.get(position);
//holder.textid.setText(row[0]); prints aisle number, dont need
holder.textname.setText(row);
return rowView;
}
}
}
