2

別のスレッドを使用して、URLからjsonオブジェクトを取得しています。しかし、問題は、結果を取得しながら進行状況ダイアログを表示したいということです。進行状況ダイアログを作成し、スレッド実行の前後にshowanddismissを呼び出しました。ただし、進行状況ダイアログは表示されません。これが私のスレッドの呼び方です。

    private void getRecordsByCount(final String data) {
        try {
            // btnSelectall.setText(" ");
            int color=Color.BLACK;
            showProgressDialog();
            tableLayoutGrid.removeAllViews();
            final String[] details = data.split("_");
            SimpleDateFormat df = new SimpleDateFormat("MM/dd/yyyy");
            String formattedDate = df.format(new Date());
            String url = ipaddress + "/GrantLeavesList?Companyid=" + user_info.get("CompanyId") + "&divisionid=" + details[3] + "&userid=" + user_info.get("userid") + "&roleid="
                    + user_info.get("RoleId") + "&Employeeid=" + user_info.get("EmployeeId") + "&leavetypeid=" + staticDetails.get(details[0]) + "&strStatus=" + staticDetails.get(details[1])
                    + "&type=" + staticDetails.get(details[2]) + "&Date=" + formattedDate;
            JsonThread thread = new JsonThread(url);
            thread.start();
            // thread.setPriority(Thread.MAX_PRIORITY);
            thread.join();
            JSONObject obj = thread.returnResult();
            btnGrantSubmit.setVisibility(View.GONE);
            if (obj != null) {

                leaveforwardcounts = obj.getJSONArray("Table1");

                ScrollView scrollGrid = new ScrollView(this);
                TableRow datarow = new TableRow(this);
                datarow.setWeightSum(100);
                TableLayout table = new TableLayout(this);
                for (int i = 0; i < leaveforwardcounts.length(); i++) {
                    btnGrantSubmit.setVisibility(View.VISIBLE);
                    JSONObject record = leaveforwardcounts.getJSONObject(i);
                    String applicantname = record.getString("Applicant");
                    String toDate = record.getString("ToDate");
                    String noofdays = record.getString("NumberOfDays");
                    String LOP = record.getString("LOP");
                    if(LOP!=null && LOP.trim().length()!=0)
                    {
                        color=Color.RED;
                    }
                    final int id = i;
                    final Button gridbutton = new Button(this);
                    gridbutton.setText(status);
                    gridbutton.setTextColor(Color.BLACK);
                    gridbutton.setBackgroundResource(R.drawable.grdbutton_30x30);
                    gridbutton.setGravity(Gravity.CENTER);
                    gridbutton.setPadding(2, 0, 2, 0);
                    gridbutton.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            changeRadioButtonState(gridbutton, id, data);
                        }
                    });
                    gridbutton.setOnLongClickListener(new OnLongClickListener() {

                        @Override
                        public boolean onLongClick(View v) {
                            setSelection(gridbutton);
                            return true;
                        }
                    });

                    TextView tvApplicantName = new TextView(this);

                    TextView tvToDate = new TextView(this);
                    TextView tvNoOfDays = new TextView(this);
                    TextView empty = new TextView(this);
                    TextView empty2 = new TextView(this);
                    if (applicantname.trim().length() >= 18) {
                        applicantname = applicantname.substring(0, 18);
                    }

                    tvApplicantName.setText(applicantname);
                    tvApplicantName.setTypeface(font2);
                    tvApplicantName.setWidth(70);
                    tvApplicantName.setTextColor(color);
                    tvApplicantName.setPadding(5, 0, 0, 0);

                    tvToDate.setText(toDate);
                    tvToDate.setTypeface(font2);
                    tvNoOfDays.setText(noofdays);
                    tvNoOfDays.setTypeface(font2);
                    tvNoOfDays.setGravity(Gravity.RIGHT);

                    Button ivDetails = new Button(this);
                    ivDetails.setText(" ");
                    ivDetails.setPadding(2, 0, 2, 0);
                    ivDetails.setBackgroundResource(R.drawable.detailsbutton_30x30);
                    ivDetails.setGravity(Gravity.CENTER);

                    ivDetails.setOnClickListener(new View.OnClickListener() {

                        @Override
                        public void onClick(View v) {
                            leaveDetails = new PopupWindow(showLeaveDetails(id, leaveforwardcounts,data), (int) (width * 0.8), height / 2, true);
                            leaveDetails.showAtLocation(mainlayout, Gravity.CENTER, 0, 0);
                        }
                    });

                    TableRow row = new TableRow(this);

                    row.setPadding(0, 3, 0, 3);
                    row.setWeightSum(100);
                    row.addView(tvApplicantName, new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 55));
                    row.addView(tvNoOfDays, new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 5));
                    row.addView(empty2, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 20));
                    row.addView(ivDetails, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 5));
                    row.addView(empty, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 5));
                    row.addView(gridbutton, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 5));
                    table.addView(row);
                }
                scrollGrid.addView(table);
                datarow.addView(scrollGrid, new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 100));
                tableLayoutGrid.addView(datarow);
                dialog.dismiss();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }



package com.MobJax.dashboard;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.http.util.ByteArrayBuffer;
import org.json.JSONObject;


public class JsonThread extends Thread{
    boolean running=false;
    String url;
    JSONObject jobj=null;

    public JsonThread(String url)
    {
        this.url=url;
    }
    @Override
    public void run() {
        int k=0;

        URL url1;
        try {

            url1 = new URL(url);
            InputStream input=url1.openStream();
            BufferedInputStream bis=new BufferedInputStream(input);
            ByteArrayBuffer baf=new ByteArrayBuffer(1000);
            while((k=bis.read())!=-1)
            {
            baf.append((byte)k);

            }
            String results=new String(baf.toByteArray());
              jobj=new JSONObject(results);
            } 
        catch (MalformedURLException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } 
        catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }

    }
    public JSONObject returnResult()
    {
        return jobj;
    }

}
4

2 に答える 2

5

AsyncTaskを使用して、スレッド部分をdoInBackgroundメソッドに追加することでこれを行うことができます。onPreExecuteで進行状況ダイアログを表示し、onPostExecuteで閉じます。

元：

public class MyTask extends AsyncTask<String, Void, String> {

private Context context;
private ProgressDialog progressDialog;

public MyTask (Context context) {
    this.context = context;
}

@Override
protected void onPreExecute() {
        progressDialog = ProgressDialog.show(context, "", "Loading...", true);
}

/* 
 * @see android.os.AsyncTask#doInBackground(Params[])
 */
@Override
protected String doInBackground(String... arg0) {
    //your json thread part
}

@Override
protected void onPostExecute(final String result) {
        progressDialog.dismiss();
}
}
于 2012-12-19T07:20:16.883 に答える
0

自分で別のスレッドを作成して処理する代わりに、Asynctaskを使用してください。それはあなたの仕事を容易にします。この非同期タスクの実行中は進行状況ダイアログを表示でき、publishProgress（）を使用して非同期タスクから進行状況ダイアログを更新できます。

于 2012-12-19T07:20:04.573 に答える