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    如何使用搜索的EditText使用JSON的URL过滤列表视图视图、如何使用、列表、JSON

    2023-09-05 23:10:22 作者：屌丝改造中i

    我用EditText上进行搜索表单 JSON URL DATAS，我给搜索领域。搜索 EDITTEXT 每个字母型过滤列表视图，在同一时间列表视图重装，如果的EditText 空显示所有当前列表。如何在请帮我... 

      @覆盖
公共无效的onCreate（包savedInstanceState）{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.electronic_main）;

    搜索=（EditText上）findViewById（R.id.text_search）;
    列表视图=（ListView控件）findViewById（R.id.listview）;

    sea​​rch.addTextChangedListener（新TextWatcher（）{
        @覆盖
        公共无效beforeTextChanged（CharSequence中，诠释开始，诠释计数，之后INT）{

        }

        @覆盖
        公共无效onTextChanged（CharSequence中，诠释开始，诠释之前，诠释计数）{

            ArrayList的＆LT; HashMap的＆LT;字符串，字符串＆GT;＆GT; arrayTemplist =新的ArrayList＆LT; HashMap的＆LT;字符串，字符串＆GT;＆GT;（）;
            。串searchString = search.getText（）的toString（）与toLowerCase（Locale.getDefault（））;
            listview.setTextFilterEnabled（真正的）;

            的for（int i = 0; I＆LT; arraylist.size（）;我++）{
                字符串currentString = arraylist.get（I）获得（Electronic.WORKERNAME）;
                字符串currentPlaceString = arraylist.get（I）获得（Electronic.LOCATION）;
                字符串currentShopString = arraylist.get（I）获得（Electronic.SHOPNAME）;



                如果（searchString.equalsIgnoreCase（currentString）||
                        sea​​rchString.equalsIgnoreCase（currentShopString）||
                        sea​​rchString.equalsIgnoreCase（currentPlaceString））{
                    arrayTemplist.add（arraylist.get（ⅰ））;

                }
      }
            适配器=新ElectronicAdapter（Electronic.this，arrayTemplist）;
            listview.setAdapter（适配器）;
            adapter.notifyDataSetChanged（）;

        }


        @覆盖
        公共无效afterTextChanged（编辑S）{
            adapter.notifyDataSetChanged（）;

        }
    }）;

    布尔isInternet present = cd.isConnectingToInternet（）; // 对或错

    如果（isInternet present）{
        新DownloadJSON（）执行（）;

    } 其他 {

        意图失去了=新的意图（Electronic.this，NetConnection.class）;
        startActivity（丢失）;
    }


}


私有类DownloadJSON扩展的AsyncTask＆LT;虚空，虚空，布尔＆GT; {

    @覆盖
    在preExecute保护无效（）{
        super.on preExecute（）;

        mProgressDialog =新ProgressDialog（Electronic.this）;
        mProgressDialog.setMessage（载入中...）;
        mProgressDialog.setIndeterminate（假）;
        mProgressDialog.show（）;

    }

    @覆盖
    保护布尔doInBackground（空... PARAMS）{


        ArrayList的=新的ArrayList＆LT; HashMap的＆LT;字符串，字符串＆GT;＆GT;（）;

        的JSONObject = JSONfunctions
                .getJSONfromURL（http://beta.json-generator.com/api/json/get/D0_dGQT）;

        尝试 {

            jsonarray = jsonobject.getJSONArray（普电子）;

            的for（int i = 0; I＆LT; jsonarray.length（）;我++）{
                HashMap的＆LT;字符串，字符串＆GT;图=新的HashMap＆LT;字符串，字符串＆GT;（）;
                的JSONObject = jsonarray.getJSONObject（ⅰ）;


                map.put（workername，jsonobject.getString（workername））;
                map.put（SHOPNAME，jsonobject.getString（SHOPNAME））;
                map.put（经验，jsonobject.getString（经验））;
                map.put（票价，jsonobject.getString（收费））;
                map.put（位置，jsonobject.getString（位置））;
                map.put（等级，jsonobject.getString（等级））;
                map.put（地址，jsonobject.getString（地址））;
                map.put（workerimage，jsonobject.getString（workerimage））;
                map.put（shopphoto，jsonobject.getString（shopphoto））;
                map.put（细胞，jsonobject.getString（小区））;


                arraylist.add（图）
            }

        }赶上（JSONException E）{
            e.printStackTrace（）;
        }
        返回true;
    }


    @覆盖
    保护无效onPostExecute（布尔ARG）{

        列表视图=（ListView控件）findViewById（R.id.listview）;
        适配器=新ElectronicAdapter（Electronic.this，ArrayList的）;

        listview.setAdapter（适配器）;
        mProgressDialog.dismiss（）;

    }

}
}

    解决方案 

     搜索=（EditText上）findViewById（R.id.serach）;
    列表视图=（ListView控件）findViewById（R.id.listview）;
    listview.setOnItemClickListener（新OnItemClickListener（）{

        @覆盖
        公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，查看ARG1，INT ARG2，
                长ARG3）{
            // TODO自动生成方法存根
            。字符串GH = listview.getTextFilter（）的toString（）;
            text.setText（GH）;
        }
    }）;
    listview.setTextFilterEnabled（真正的）;

    sea​​rch.addTextChangedListener（新TextWatcher（）{

        @覆盖
        公共无效onTextChanged（CharSequence的arg0中，诠释ARG1，诠释ARG2，诠释ARG3）{
            // TODO自动生成方法存根
             。串searchString = search.getText（）的toString（）与toLowerCase（Locale.getDefault（））;
             Log.d（@ w2w2w2w，+ searchString）;
             INT RealText文件= searchString.length（）;
             arrayTemplist.clear（）;
             的for（int i = 0; I＆LT; arraylist.size（）;我++）{
                    。字符串currentString = arraylist.get（I）获得（姓名）的toString（）;
                    。字符串currentPlaceString = arraylist.get（I）获得（城市）的toString（）;
                    。字符串currentShopString = arraylist.get（I）获得（landtype）的toString（）;
             if(realtext<=currentString.length()&&realtext<=currentPlaceString.length()&&realtext<=currentShopString.length())
             {


                    如果（searchString.equalsIgnoreCase（currentString.substring（0，RealText文件））||
                            sea​​rchString.equalsIgnoreCase（currentShopString.substring（0，RealText文件））||
                            sea​​rchString.equalsIgnoreCase（currentPlaceString.substring（0，RealText文件）））{
                        arrayTemplist.add（arraylist.get（ⅰ））;
                        适配器=新ListViewAdapter（Edit.this，arrayTemplist）;
                        listview.setAdapter（适配器）;
                    }
             }
             其他{

                adapter.notifyDataSetChanged（）;
             }


             }}

        @覆盖
        公共无效beforeTextChanged（CharSequence的arg0中，诠释ARG1，INT ARG2，
                INT ARG3）{
            // TODO自动生成方法存根

        }

        @覆盖
        公共无效afterTextChanged（编辑为arg0）{
            // TODO自动生成方法存根

        }
    }）;
    //执行DownloadJSON的AsyncTask

    }

    python接口自动化39 JMESPath解析json数据

    am using edittext for search form JSON url datas, i give search field. search each letter type on editText filter the listview, at same time listview reload, if edittext empty show all current list. how to that please help me...

     @Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.electronic_main);

    search = (EditText) findViewById(R.id.text_search);
    listview = (ListView) findViewById(R.id.listview);

    search.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

            ArrayList<HashMap<String, String>> arrayTemplist = new ArrayList<HashMap<String, String>>();
            String searchString = search.getText().toString().toLowerCase(Locale.getDefault());
            listview.setTextFilterEnabled(true);

            for (int i = 0; i < arraylist.size(); i++) {
                String currentString = arraylist.get(i).get(Electronic.WORKERNAME);
                String currentPlaceString = arraylist.get(i).get(Electronic.LOCATION);
                String currentShopString = arraylist.get(i).get(Electronic.SHOPNAME);



                if (searchString.equalsIgnoreCase(currentString) ||
                        searchString.equalsIgnoreCase(currentShopString) ||
                        searchString.equalsIgnoreCase(currentPlaceString)) {
                    arrayTemplist.add(arraylist.get(i));

                }
      }
            adapter = new ElectronicAdapter(Electronic.this, arrayTemplist);
            listview.setAdapter(adapter);
            adapter.notifyDataSetChanged();

        }


        @Override
        public void afterTextChanged(Editable s) {
            adapter.notifyDataSetChanged();

        }
    });

    Boolean isInternetPresent = cd.isConnectingToInternet(); // true or false

    if (isInternetPresent) {
        new DownloadJSON().execute();

    } else {

        Intent lost = new Intent(Electronic.this, NetConnection.class);
        startActivity(lost);
    }


}


private class DownloadJSON extends AsyncTask<Void, Void, Boolean> {

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

        mProgressDialog = new ProgressDialog(Electronic.this);
        mProgressDialog.setMessage("Loading...");
        mProgressDialog.setIndeterminate(false);
        mProgressDialog.show();

    }

    @Override
    protected Boolean doInBackground(Void... params) {


        arraylist = new ArrayList<HashMap<String, String>>();

        jsonobject = JSONfunctions
                .getJSONfromURL("http://beta.json-generator.com/api/json/get/D0_dGQT");

        try {

            jsonarray = jsonobject.getJSONArray("eletronics");

            for (int i = 0; i < jsonarray.length(); i++) {
                HashMap<String, String> map = new HashMap<String, String>();
                jsonobject = jsonarray.getJSONObject(i);


                map.put("workername", jsonobject.getString("workername"));
                map.put("shopname", jsonobject.getString("shopname"));
                map.put("experience", jsonobject.getString("experience"));
                map.put("fare", jsonobject.getString("fare"));
                map.put("location", jsonobject.getString("location"));
                map.put("Rating", jsonobject.getString("Rating"));
                map.put("address", jsonobject.getString("address"));
                map.put("workerimage", jsonobject.getString("workerimage"));
                map.put("shopphoto", jsonobject.getString("shopphoto"));
                map.put("cell", jsonobject.getString("cell"));


                arraylist.add(map);
            }

        } catch (JSONException e) {
            e.printStackTrace();
        }
        return true;
    }


    @Override
    protected void onPostExecute(Boolean arg) {

        listview = (ListView) findViewById(R.id.listview);
        adapter = new ElectronicAdapter(Electronic.this, arraylist);

        listview.setAdapter(adapter);
        mProgressDialog.dismiss();

    }

}
}

    解决方案 

    search=(EditText)findViewById(R.id.serach);
    listview=(ListView)findViewById(R.id.listview);
    listview.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                long arg3) {
            // TODO Auto-generated method stub
            String gh = listview.getTextFilter().toString();
            text.setText(gh);
        }
    });
    listview.setTextFilterEnabled(true);

    search.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
            // TODO Auto-generated method stub
             String searchString = search.getText().toString().toLowerCase(Locale.getDefault());
             Log.d("@w2w2w2w",""+searchString);
             int realtext=searchString.length();
             arrayTemplist.clear();
             for (int i = 0; i < arraylist.size(); i++) {
                    String currentString = arraylist.get(i).get("Name").toString();
                    String currentPlaceString = arraylist.get(i).get("city").toString();
                    String currentShopString = arraylist.get(i).get("landtype").toString();
             if(realtext<=currentString.length()&&realtext<=currentPlaceString.length()&&realtext<=currentShopString.length())
             {


                    if (searchString.equalsIgnoreCase(currentString.substring(0,realtext)) ||
                            searchString.equalsIgnoreCase(currentShopString.substring(0,realtext)) ||
                            searchString.equalsIgnoreCase(currentPlaceString.substring(0,realtext))) {
                        arrayTemplist.add(arraylist.get(i));
                        adapter = new ListViewAdapter(Edit.this, arrayTemplist);
                        listview.setAdapter(adapter);
                    }
             }
             else{

                adapter.notifyDataSetChanged();
             }


             }}

        @Override
        public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                int arg3) {
            // TODO Auto-generated method stub

        }

        @Override
        public void afterTextChanged(Editable arg0) {
            // TODO Auto-generated method stub

        }
    });
    // Execute DownloadJSON AsyncTask

    }

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