如何通过改造1.9发布listview项目？

时间：2015-12-10 09:33:30

标签： android listview android-fragments post retrofit

这里我的疑问是如何通过改造1.9将listview项目发布到服务器这里是我的代码：

Add.fragment：

package first.service.precision.servicefirst;



import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import com.squareup.otto.Bus;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by 4264 on 16-10-2015.
 */
public  class Add extends Fragment implements View.OnClickListener {
    public static ListView lv;
    public static LeadRequirementsView _LeadRequirements;
    static MyListAdapter myListAdapter;
    //   String TAG="Add";
    static Bus bus;

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        try {
            View rootView = inflater.inflate(R.layout.activity_btn_add, container, false);
//bus.register(getActivity());
            //Lead Source
            Spinner ldsource = (Spinner) rootView.findViewById(R.id.lead_source);
            ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
                    getActivity().getBaseContext(), R.array.dropbox1, R.layout.spinnerlayout);
            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
            ldsource.setAdapter(adapter);

            //Lead Type
            Spinner ldtype = (Spinner) rootView.findViewById(R.id.ldtype);
            ArrayAdapter<CharSequence> adapter1 = ArrayAdapter.createFromResource(
                    getActivity().getBaseContext(), R.array.dropbox2, R.layout.spinnerlayout);
            adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
            ldtype.setAdapter(adapter1);

            //Lead Status
            Spinner ldstatus = (Spinner) rootView.findViewById(R.id.ldstatus);
            TextView txt = (TextView) rootView.findViewById(R.id.spinnerTarget);
            ArrayAdapter<CharSequence> adapter2 = ArrayAdapter.createFromResource(
                    getActivity().getBaseContext(), R.array.dropbox3, R.layout.spinnerlayout);
            adapter2.setDropDownViewResource(android.R.layout.simple_selectable_list_item);
            ldstatus.setAdapter(adapter2);


            lv = (ListView) rootView.findViewById(android.R.id.list);

          List<LeadRequirementsView> leadRequirementsViewList = new ArrayList<>();
            myListAdapter = new MyListAdapter(getActivity(), android.R.id.list, leadRequirementsViewList);
            lv.setAdapter(myListAdapter);



            return rootView;

        } catch (Exception e) {
            throw e;
        }
    }

    public void updateListView(LeadRequirementsView object) {
        myListAdapter.add(object);

        myListAdapter.notifyDataSetChanged();
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        Button btnrequirements = (Button) getActivity().findViewById(R.id.btnrequirements);
        btnrequirements.setOnClickListener(this);
        Button btnactnt = (Button) getActivity().findViewById(R.id.btnacnt);
        btnactnt.setOnClickListener((View.OnClickListener) this);
        Button btnprimary = (Button) getActivity().findViewById(R.id.btnprimary);
        btnprimary.setOnClickListener((View.OnClickListener) this);
        Button btnsecondary = (Button) getActivity().findViewById(R.id.btnsecondary);
        btnsecondary.setOnClickListener((View.OnClickListener) this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btnrequirements:
                Fragment newFragment = new NewRequirements();
                FragmentTransaction transaction = getFragmentManager().beginTransaction();
                transaction.add(R.id.content_frame, newFragment, "NewRequire");
                transaction.addToBackStack(null);
                transaction.commit();
                break;

            case R.id.btnacnt:
                FragmentManager fm = getFragmentManager();
                SelectAccountDialog selectAccountDialog = new SelectAccountDialog();
              //  selectAccountDialog.setRetainInstance(true);
                selectAccountDialog.show(fm, "fragment_name");
                //ft.addToBackStack(null);
                break;
            case R.id.btnprimary:
                FragmentManager fmm = getFragmentManager();
                // FragmentTransaction ftt=fmm.beginTransaction();
                SelectAccountDialog selectAccountDialog1 = new SelectAccountDialog();
                //selectAccountDialog1.setRetainInstance(true);
                selectAccountDialog1.show(fmm, "fragment_name");
                //   ftt.addToBackStack(null);
                break;
            case R.id.btnsecondary:
                FragmentManager fm2 = getFragmentManager();
                //     FragmentTransaction fttt=fm2.beginTransaction();
                SelectAccountDialog selectAccountDialog2 = new SelectAccountDialog();
                //selectAccountDialog2.setRetainInstance(true);
                selectAccountDialog2.show(fm2, "fragment_name");
                //     fttt.addToBackStack(null);
                break;

        }

    }


}

这是我的自定义列表; 

package first.service.precision.servicefirst;

import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

import java.util.List;

/**
 * Created by 4264 on 25-11-2015.
 */
public class MyListAdapter extends ArrayAdapter<LeadRequirementsView> {

    private List<LeadRequirementsView> listData;
    private LayoutInflater layoutInflater;


    public MyListAdapter(Context context, int resource,List<LeadRequirementsView> listdata) {
        super(context, resource, listdata);
  this.listData=listdata;
        layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public void add(LeadRequirementsView object) {
        super.add(object);
    }

    @Override
    public int getCount() {

        return listData.size();
    }

    @Override
    public LeadRequirementsView getItem(int position) {

        return listData.get(position);
    }


    @Override
    public long getItemId(int position) {
        return position;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;

        View mview = convertView;
        if (mview == null) {
            convertView = layoutInflater.inflate(R.layout.list_ld_requirements,null);
            TextView req = (TextView) convertView.findViewById(R.id.txt);
            req.setText("Select Lead Information");
            holder = new ViewHolder();
            holder.headlineView = (TextView) convertView.findViewById(R.id.sbu);
            holder.reporterNameView = (TextView) convertView.findViewById(R.id.bu);
            holder.reportedDateView = (TextView) convertView.findViewById(R.id.sbuu);
            holder.ldstatusView = (TextView) convertView.findViewById(R.id.sc);
            holder.ldtype = (TextView) convertView.findViewById(R.id.ssc);
            holder.ldsource = (TextView) convertView.findViewById(R.id.rq);
            //   add.lv.setVisibility(View.INVISIBLE);
            convertView.setTag(holder);

        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        //    add.lv.setVisibility(View.VISIBLE);
        holder.headlineView.setText("Strategic Business Unit: " + listData.get(position).getSbuName());
        holder.reportedDateView.setText("Business Unit: " + listData.get(position).getBuName());
        holder.ldstatusView.setText("Sub Business Unit: " + listData.get(position).getServiceCategoryName());
        holder.ldtype.setText("Service Category: " + listData.get(position).getServiceSubCategoryName());
        //   holder.ldsource.setText("Service Sub Category: " + listData.get(position).g);


        convertView.setBackgroundColor(Color.parseColor("#E5E5E5"));


        // holder.headlineView.setText("Requirements: " +listData.get(position).getReq());


        return convertView;
    }

    static class ViewHolder {
        public TextView headlineView;
        public TextView reporterNameView;
        public TextView reportedDateView;
        public TextView ldstatusView;
        public TextView ldtype;
        public TextView ldsource;
        public TextView req;
    }
}

我怀疑是我的listview是从另一个动态的片段数据填充但现在我应该做的是需要将这个列表项发布到服务器我怎么这样做你们在这里帮助可以解决这个问题吗？

1 个答案:

答案 0 :(得分：1)

在我看来，发送“列表视图中的数据”或填充该列表视图的列表的最佳方法是使用gson将列表序列化为JSON字符串，然后使用retrofit将其发送到服务器。

public class Model {

public Model(String data1, String data2, String data3) {
    this.data1 = data1;
    this.data2 = data2;
    this.data3 = data3;
}

private String data1;
private String data2;
private String data3;
}

将数组列表导入json 

    List<Model> models = new ArrayList<>();
    models.add(new Model("name", "surname", "age"));
    models.add(new Model("name2", "surname2", "age2"));
    models.add(new Model("name3", "surnam3", "age3"));

    Gson gson = new Gson();

    String json = gson.toJson(models);

从此你得到像这样的JSON 

[{"data1":"name", "data2":"surname", "data3":"age"},{"data1":"name2", "data2":"surname2", "data3":"age2"},{"data1":"name3", "data2":"surname3", "data3":"age3"}]
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