Question

我必须运行json格式，如下所示并且必须将这些数据解析为listview

为此我尝试了以下代码

MainActivity

swipeRefreshLayout.setOnRefreshListener(this);
        // swipeRefreshLayout.setRefreshing(true);
        swipeRefreshLayout.post(new Runnable() {
                                    @Override
                                    public void run() {
                                        swipeRefreshLayout.setRefreshing(true);

                                            SyncMethod("http://52.26.35.210/api/web/v1/api-beautician/country-state-city");



                                    }
                                }
        );

        notification_listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id)
            {

                String postloadid = actorsList.get(position).gettitle();
                String source_addoc=actorsList.get(position).gettitle();
                Constants.vCountry=actorsList.get(position).gettitle();
                Toast.makeText(getApplicationContext(),"Selecting "+ Constants.vCountry+" State ", Toast.LENGTH_LONG).show();
                finish();
            }
        });
    }
    public void init()
    {


        norecord=(LinearLayout)findViewById(R.id.norecord);

        notification_listview=(ListView)findViewById(R.id.listView_notification);
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);

    }

    @Override
    public void onRefresh()
    {
        swipeRefreshLayout.setRefreshing(false);

            SyncMethod("http://52.26.35.210/api/web/v1/api-beautician/country-state-city");




    }
    private static String pad(int c)
    {
        if (c >= 10)
            return String.valueOf(c);
        else
            return "0" + String.valueOf(c);
    }

    @Override
    public void onResume()
    {
        super.onResume();

        swipeRefreshLayout.setRefreshing(false);

            SyncMethod("http://52.26.35.210/api/web/v1/api-beautician/country-state-city");



    }
    public void SyncMethod(final String GetUrl)
    {

        Log.i("Url.............", GetUrl);
        final Thread background = new Thread(new Runnable() {
            // After call for background.start this run method call
            public void run() {
                try {
                    String url = GetUrl;
                    String SetServerString = "";
                    // document all_stuff = null;

                    SetServerString = fetchResult(url);
                    threadMsg(SetServerString);
                } catch (Throwable t) {
                    Log.e("Animation", "Thread  exception " + t);
                }
            }

            private void threadMsg(String msg) {

                if (!msg.equals(null) && !msg.equals("")) {
                    Message msgObj = handler11.obtainMessage();
                    Bundle b = new Bundle();
                    b.putString("message", msg);
                    msgObj.setData(b);
                    handler11.sendMessage(msgObj);
                }
            }

            // Define the Handler that receives messages from the thread and update the progress
            private final Handler handler11 = new Handler() {
                public void handleMessage(Message msg) {
                    try {
                        String aResponse = msg.getData().getString("message");
                        Log.e("Exam", "screen>>" + aResponse);

                        swipeRefreshLayout.setRefreshing(false);

                        JSONObject jobj = new JSONObject(aResponse);
                        Log.e("Home Get draft--", jobj.toString());
                        String status = jobj.getString("status");

                        Log.e("Myorder Homestatusdraft",status);
                        Log.e("--------------------", "----------------------------------");
                        if (status.equalsIgnoreCase("true"))
                        {
                            actorsList = new ArrayList<Doctortype_method>();
                            JSONArray array = new JSONArray();
                            array = jobj.getJSONArray("response");
                            if(actorsList.size()>0){
                                actorsList.clear();
                            }
                            for(int i=0;i<array.length();i++)
                            {

                                JSONObject jsonChildNode = array.getJSONObject(i);
                                actorsList.add(new Doctortype_method(jsonChildNode.optString("State id"),jsonChildNode.optString("State name")));

                            }
                            if (getApplicationContext() != null)
                            {

                                if (adapter == null)
                                {
                                    adapter = new Doctortype_Adapter(getApplicationContext(),actorsList);
                                    notification_listview.setAdapter(adapter);

                                } else {
                                    adapter.notifyDataSetChanged();
                                }
                            }
                            if(actorsList.size()==0)
                            {
                                norecord.setVisibility(View.VISIBLE);
                            }


                        }
                        else
                        {
                            swipeRefreshLayout.setRefreshing(false);
                            norecord.setVisibility(View.VISIBLE);
                            // UF.msg(message + "");
                        }



                    } catch (Exception e) {

                    }


                }
            };
        });
        // Start Thread
        background.start();
    }

    public String fetchResult(String urlString) throws JSONException {
        StringBuilder builder;
        BufferedReader reader;
        URLConnection connection = null;
        URL url = null;
        String line;
        builder = new StringBuilder();
        reader = null;
        try {
            url = new URL(urlString);
            connection = url.openConnection();

            reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
            //Log.d("DATA", builder.toString());
        } catch (Exception e) {

        }
        //JSONArray arr=new JSONArray(builder.toString());
        return builder.toString();

}
}

为此，我还添加了适配器和arraylist。但是当我运行这个应用程序时，api并没有被完美地称为.. 希望有人能帮助我..

这里我添加了适配器和arraylist

适配器

public Doctortype_Adapter(Context context, ArrayList<Doctortype_method> objects) {
        super(context, R.layout.list_doctortype, objects);
        this.context = context;
        this.vi = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        this.actorList = objects;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // convert view = design
        //View v = convertView;
        View rowView;
        ViewHolder vh;
        if (convertView == null) {

            rowView = vi.inflate(R.layout.list_doctortype, null);
            setViewHolder(rowView);
        } else {
            rowView = convertView;

        }
        vh = (ViewHolder) rowView.getTag();

        vh.title.setText(Html.fromHtml(actorList.get(position).gettitle()));
        vh.subtitle.setText(Html.fromHtml(actorList.get(position).getsubtitle()));


       /* String image=actorList.get(position).getid();
        UrlImageViewHelper.setUrlDrawable(vh.dimage, image.toString(), R.drawable.no_img);*/

        return rowView;

    }

    static class ViewHolder {

        public TextView title, subtitle;

    }

    private void setViewHolder(View rowView) {
        ViewHolder vh = new ViewHolder();

        vh.title = (TextView) rowView.findViewById(R.id.tvProfileName);
        vh.subtitle = (TextView) rowView.findViewById(R.id.tvDesc);

}
}

数组列表

public Doctortype_method( String title, String subtitle) {
        super();
        this.title = title;

        this.subtitle = subtitle;

    }


    public String gettitle() {
        return title;
    }

    public void settitle(String title) {
        this.title = title;
    }

    public String getsubtitle()
    {
        return subtitle;
    }

    public void setsubtitle(String subtitle) {
        this.subtitle = subtitle;
    }

没有错误，但是当我运行此代码api没有被调用，我没有得到我想要的输出。 Thnx提前..

Answer 1

if (status.equalsIgnoreCase("true"))错误，因为您获得status:1因此if (status.equalsIgnoreCase("1"))尝试此操作，然后将此array = jobj.getJSONArray("response");更改为array = jobj.getJSONArray("data");您的JSONArray密钥为{{1} }}

并替换它

"data"

带

actorsList.add(new Doctortype_method(jsonChildNode.optString("State id"),jsonChildNode.optString("State name")));

希望这会有所帮助。如果这没有帮助随意询问

编辑：

我无法理解你想要的东西，但看看这个 - ＆GT;你需要为listview创建baseAdapter并使用你的arraylist

将该适配器设置到listview中

为了获取上面的数据，你需要做以下代码：

actorsList.add(new Doctortype_method(jsonChildNode.optString("countryID"),jsonChildNode.optString("vCountry")));

现在，如果要在listview中显示此vCountry，则必须在ArrayList中添加vCountry，然后在listview.setAdapter中，您必须传递由vCountry填充的此ArrayList。希望你现在明白。如果您需要适配器和列表视图代码，请查看此链接http://www.vogella.com/tutorials/AndroidListView/article.html

Answer 2

最后我得到了正确的答案。今后任何人都可以从中获得帮助。

ActivityClass.java

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_city_list_item);


        lv_city = (ListView)findViewById(R.id.listView_city);

        Bundle b=getIntent().getExtras();
        city_stateid = b.getString("stateid");
        city_statename=b.getString("stateName");
        city_countryid=b.getString("country");


        lv_city.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


                page_cityname  = cityist.get(position).getCityName();

                SharedPreferences sp=getSharedPreferences("abc",MODE_WORLD_WRITEABLE);
                SharedPreferences.Editor edit=sp.edit();
                edit.putString("city_name", page_cityname);
                edit.commit();

                Toast.makeText(getApplicationContext(),"Selected city & State"+page_cityname + "-" +city_statename, Toast.LENGTH_LONG).show();

               Intent i = new Intent(getApplicationContext(), NextActivity.class);
                /*i.putExtra("cityname", page_cityname);*/
                startActivity(i);
            }
        });
    }


    @Override
    public void onResume() {
        super.onResume();


        params12 = new ArrayList<NameValuePair>();
        params12.add(new BasicNameValuePair("type", city_type));
        params12.add(new BasicNameValuePair("stateID", city_stateid));
        params12.add(new BasicNameValuePair("countryID", city_countryid));

        new Sync().execute();


    }


    class Sync extends AsyncTask<Void, Void, String> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();

        }

        protected String doInBackground(Void... params) {
            String obj;//new JSONArray();
            try {
                // obj=getJSONFromUrl("Your posting path", params11);
                obj = getJSONFromUrl("http://52.26.35.210/api/web/v1/api-beautician/country-state-city", params12);
                return obj;
            } catch (Exception e) {
            }
            return null;
        }

        @Override
        protected void onPostExecute(final String result) {
            super.onPostExecute(result);

            Log.e("Result of geting data", "" + result);
            try {

                Log.e("Exam", "screen>>" + result);
                JSONObject get_res = new JSONObject(result);
                String status = get_res.getString("status");
                Log.e("Exam", "screen33333>>" + status);
                if (status.equalsIgnoreCase("1")) {
                    cityist = new ArrayList<city_method>();
                    JSONArray array = new JSONArray();
                    array = get_res.getJSONArray("data");

                    for (int i = 0; i < array.length(); i++) {

                        cityist.add(new city_method(array.getJSONObject(i).getString("cityID"),array.getJSONObject(i).getString("cityName")));



                    }
                    if (getApplicationContext() != null)
                    {

                        if (adapter == null)
                        {
                            adapter = new city_Adapter(getApplicationContext(),cityist);
                            lv_city.setAdapter(adapter);

                        } else {
                            adapter.notifyDataSetChanged();
                        }
                    }
                }

            } catch (Exception e) {

            }

        }
    }

    public String fetchResult(String urlString) throws JSONException {
        StringBuilder builder;
        BufferedReader reader;
        URLConnection connection = null;
        URL url = null;
        String line;
        builder = new StringBuilder();
        reader = null;
        try {
            url = new URL(urlString);
            connection = url.openConnection();

            reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
            //Log.d("DATA", builder.toString());
        } catch (Exception e) {

        }
        //JSONArray arr=new JSONArray(builder.toString());
        return builder.toString();
    }


    public String getJSONFromUrl(String url, List<NameValuePair> params) {
        InputStream is = null;
        String json = "";

        // Making HTTP request
        try {
            // defaultHttpClient
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(new UrlEncodedFormEntity(params));
            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    is, "iso-8859-1"), 8);
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line);
                //sb.append(line + "\n");
            }
            is.close();
            json = sb.toString();
            Log.e("JSON", json);
        } catch (Exception e) {
            Log.e("Buffer Error", "Error converting result " + e.toString());
        }
        return json;

    }
}

Adapterclass.java

public class city_Adapter extends ArrayAdapter<city_method> {
    ArrayList<city_method> citylist;
    LayoutInflater vi;
    Context context;

    public city_Adapter(Context context, ArrayList<city_method> items) {
        super(context, R.layout.list_doctortype, items);
        this.context = context;
        this.vi = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        this.citylist = items;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // convert view = design
        //View v = convertView;
        View rowView;
        city_Adapter.ViewHolder vh;
        if (convertView == null) {

            rowView = vi.inflate(R.layout.program_list, null);
            setViewHolder(rowView);
        } else {
            rowView = convertView;

        }
        vh = (city_Adapter.ViewHolder) rowView.getTag();
        vh.cityid.setText((citylist.get(position).getCityID()));
        vh.cityname.setText((citylist.get(position).getCityName()));




        return rowView;

    }

    static class ViewHolder {


        private TextView cityid,cityname;

    }

    private void setViewHolder(View rowView) {
        ViewHolder vh = new ViewHolder();

        vh.cityid = (TextView) rowView.findViewById(R.id.cityid);
        vh.cityname = (TextView) rowView.findViewById(R.id.cityname);

        rowView.setTag(vh);
    }
}

Methodclass.java

public class city_method {

    private String cityID,cityName;

    public String getCityID() {
        return cityID;
    }

    public void setCityID(String cityID) {
        this.cityID = cityID;
    }

    public String getCityName() {
        return cityName;
    }

    public void setCityName(String cityName) {
        this.cityName = cityName;
    }

    public city_method(String cityID, String cityName) {
        this.cityID = cityID;
        this.cityName = cityName;
    }
}

使用带有restful api的json parsom将数据填充到listview中

2 个答案: