Question

我试图从spinner获取使用getter和setter以及自定义适配器动态生成的值。我能够显示它，但我想为每个微调器添加onclicklistners并添加从中获取所选值并将其存储在数组列表中。

到目前为止，这是我的代码 getter setter

public class Baggage_details {

String status;
String sector_name;
String title_count;
ArrayList<String> baggage_list;


public String getstatus() {
    System.out.println("----- : "+status);
    return status;}
public void setstatus(String status) {this.status = status;}


public String getsector_name() {
    System.out.println("----- : "+sector_name);
    return sector_name;}
public void setsector_name(String sector_name) {this.sector_name = sector_name;}


public String gettitle_count() {
    System.out.println("----- : "+title_count);
    return title_count;
}
public void settitle_count(String title_count) {this.title_count = title_count;}



public ArrayList getbaggage_list() {

    return baggage_list;
}
public void setbaggage_list(ArrayList<String> baggage_list) {this.baggage_list = baggage_list;}



public Baggage_details(String status,String sector_name,String title_count,ArrayList<String> baggage_list)
{

    this.status = status;
    this.sector_name = sector_name;
    this.title_count=title_count;
    this.baggage_list=baggage_list;

}


 }

自定义适配器

public class Baggage_Adapter extends BaseAdapter {
Context context;
public static ArrayList<Baggage_details> rowItems;

public static ArrayList<String> selected_baggage=new ArrayList<String>();
public static ArrayList<String> selected_baggage_final=new ArrayList<String>();

Baggage_Adapter(Context context, ArrayList<Baggage_details> rowItems) {
    selected_baggage.clear();
    selected_baggage_final.clear();
    this.context = context;
    this.rowItems = rowItems;


}



@Override
public int getCount() {
    return rowItems.size();
}

@Override
public Object getItem(int position) {
    return rowItems.get(position);
}

@Override
public long getItemId(int position) {
    return rowItems.indexOf(getItem(position));
}

private class ViewHolder {
    TextView sector,status;
    TextView title_count;
    Spinner spinner;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {


    final ViewHolder holder;
    LayoutInflater mInflater = (LayoutInflater) context
            .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.baggage_adapter, null);
        holder = new ViewHolder();
    }
    else
    {
        holder = (ViewHolder) convertView.getTag();
    }


    holder.status = (TextView) convertView.findViewById(R.id.status);
    holder.sector = (TextView) convertView.findViewById(R.id.sector);
    holder.title_count = (TextView) convertView.findViewById(R.id.title_count);
    holder.spinner = (Spinner) convertView.findViewById(R.id.spinner);

    try
    {

        final Baggage_details row_pos = rowItems.get(position);

        String status = String.valueOf(row_pos.getstatus());
        String title_count = String.valueOf(row_pos.gettitle_count());
        String sector=String.valueOf(row_pos.getsector_name());

        holder.status.setText(status);
        holder.sector.setText(sector);
        holder.title_count.setText(title_count);

        ArrayAdapter<String> adapter1;
        adapter1 = new ArrayAdapter<String>(context,android.R.layout.simple_spinner_item,row_pos.getbaggage_list());
        adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        holder.spinner.setAdapter(adapter1);
    }

    catch (Exception e)
    {
        Log.e("PASS_ADAP ERROR:", e.getMessage());
    }

    convertView.setTag(holder);



    holder.spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            String Text = parent.getSelectedItem().toString();
            String key =  holder.title_count.getText().toString()+"!"+holder.sector.getText().toString();

            if(Text.equals("Select") )
            {
                selected_baggage.add(key);
                selected_baggage_final.add(Text);
            }
            else{

                for (int i = 0; i <selected_baggage.size() ; i++)
                {
                    if(selected_baggage.get(i).equals(key))
                    {
                        selected_baggage.set(i,key);
                        selected_baggage_final.set(i,Text);
                    }
                }

            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });

    return convertView;
 }
 }

以下是我的称呼方式

 ArrayList<String> omword = new ArrayList<String>();

    omword.add("No Baggage");
    omword.add("123");
    omword.add("456");
 for (int i = 0; i < 2; i++)
    {
        bagdetails.add(new Baggage_details("going","BNG","key-"+(i+1),omword));
        baggageAdapter=new Baggage_Adapter(getContext(),bagdetails);
    }

Answer 1

您正在使用微调器选择项目，因此您必须在适配器holder.spinner.getSelectedItem().toString();

中进行操作

现在改变这个： -

 holder.spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            String Text = holder.spinner.getSelectedItem().toString();
            String key =  holder.title_count.getText().toString()+"!"+holder.sector.getText().toString();

            if(Text.equals("Select") )
            {
                selected_baggage.add(key);
                selected_baggage_final.add(Text);
            }
            else{

                for (int i = 0; i <selected_baggage.size() ; i++)
                {
                    if(selected_baggage.get(i).equals(key))
                    {
                        selected_baggage.set(i,key);
                        selected_baggage_final.set(i,Text);
                    }
                }

            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });

动态添加Spinner并处理每个onItemSelected事件

1 个答案: