fork download

package com.tranetech.openspace.listviewwithbuttondemo;
 
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
 
import java.io.File;
import java.util.ArrayList;
import java.util.List;
 
import android.app.Activity;
import android.os.Environment;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
 
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
 
/**
 * Created by Arpit Patel on 08-Apr-16.
 */
 
public class MainActivity extends Activity {
    ListView userList;
    UserCustomAdapter userAdapter=null;
    ArrayList<User> userArray = new ArrayList<User>();
    private SwipeRefreshLayout swipeRefreshLayout;
    Button bt_view;
    TextView tv_empty;
    static List<String> all_pdf;
    // URL to get contacts JSON
    private static String url = "http://a...content-available-to-author-only...e.info/songs/albums.php";
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        bt_view = (Button) findViewById(R.id.bt_view);
        userList = (ListView) findViewById(R.id.listView);
        tv_empty= (TextView)findViewById(R.id.tv_empty);
 
        new GetPapers().execute();
 
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                //Refreshing data on server
                new GetPapers().execute();
            }
        });
 
        /**
         * get on item click listener
         */
        userList.setOnItemClickListener(new OnItemClickListener() {
 
            @Override
            public void onItemClick(AdapterView<?> parent, View v,
                                    final int position, long id) {
 
                TextView tv_paper_name = (TextView) v.findViewById(R.id.tv_paper_name);
                String PaperName = tv_paper_name.getText().toString();
                File extStore = Environment.getExternalStorageDirectory();
                File myFile = new File(extStore.getAbsolutePath() + "/Exam Papers/" + PaperName + ".pdf");
 
                if (myFile.exists()) {
 
                    File pdfFile = new File(Environment.getExternalStorageDirectory() + "/Exam Papers/" + PaperName + ".pdf");  // -> filename
                    Uri path = Uri.fromFile(pdfFile);
                    Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
                    pdfIntent.setDataAndType(path, "application/pdf");
                    pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 
                    try {
                        startActivity(pdfIntent);
                    } catch (ActivityNotFoundException e) {
                        Toast.makeText(MainActivity.this, "No Application available to view PDF", Toast.LENGTH_SHORT).show();
                    }
                } else {
                    Toast.makeText(MainActivity.this, "Download file first", Toast.LENGTH_SHORT).show();
                }
 
            }
        });
 
        bt_view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
 
                try {
                    String folder_path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Exam Papers/";
                    all_pdf = new ArrayList<String>();
                    all_pdf = textFiles(folder_path);
                    Log.d("All files ", " " + all_pdf);
                } catch (Exception e) {
                    e.printStackTrace();
                }
 
                Intent intent = new Intent(MainActivity.this, ActivityTwo.class);
                startActivity(intent);
            }
        });
    }
 
    private void updateList() {
        //         set item into adapter
        userAdapter = new UserCustomAdapter(MainActivity.this, R.layout.row_item,
                userArray);
        userList.setAdapter(userAdapter);
 
        if (swipeRefreshLayout.isRefreshing()) {
            swipeRefreshLayout.setRefreshing(false);
        }
    }
 
 
    //For fetch the all pdf file in one Directory
    List<String> textFiles(String directory) {
        List<String> textFiles = new ArrayList<String>();
        File dir = new File(directory);
        for (File file : dir.listFiles()) {
            if (file.getName().endsWith((".pdf"))) {
                textFiles.add(file.getName());
            }
        }
        return textFiles;
    }
 
    /**
     * Async task class to get json by making HTTP call
     * */
    private class GetPapers extends AsyncTask<Void, Void, Void> {
 
        String Response;
 
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
//            userArray.clear();
            // showing refresh animation before making http call
 
        }
 
        @Override
        protected Void doInBackground(Void... arg0) {
            // Creating service handler class instance
            JSONParser sh = new JSONParser();
 
            // Making a request to url and getting response
            Response = sh.makeServiceCall(url);
 
            Log.d("Response: ", "> " + Response);
 
            if (Response != null) {
 
                try {
                    JSONArray jsonArray = new JSONArray(Response);
 
                    for (int i = 0; i < jsonArray.length(); i++){
 
                        JSONObject jsonObject = jsonArray.getJSONObject(i);
 
                        String PaperName = jsonObject.getString("name");
                        String Conts = jsonObject.getString("songs_count");
                        String id = jsonObject.getString("id");
 
                        /**
                         * add item in arraylist
                         */
                        userArray.add(new User(PaperName, Conts, id));
 
                    }
 
                } catch (JSONException e) {
                    e.printStackTrace();
                }
 
            } /*else {
                // stopping swipe refresh
                swipeRefreshLayout.setRefreshing(false);
                Log.e("ServiceHandler", "Couldn't get any data from the url");
            }*/
 
            return null;
        }
 
        @Override
        protected void onPostExecute(Void result) {
            super.onPostExecute(result);
           /* // Dismiss the progress dialog
            if (pDialog.isShowing())
                pDialog.dismiss();*/
 
            // stopping swipe refresh
            if (userArray.isEmpty()){
 
                tv_empty.setVisibility(View.VISIBLE);
 
            }else{
                if (null != userArray) {
                    updateList();
                }
            }
 
        }
 
    }
 
}
 
 
 

Main.java:34: error: class MainActivity is public, should be declared in a file named MainActivity.java
public class MainActivity extends Activity {
       ^
Main.java:3: error: package android.content does not exist
import android.content.ActivityNotFoundException;
                      ^
Main.java:4: error: package android.content does not exist
import android.content.Intent;
                      ^
Main.java:5: error: package android.net does not exist
import android.net.Uri;
                  ^
Main.java:6: error: package android.os does not exist
import android.os.AsyncTask;
                 ^
Main.java:7: error: package android.os does not exist
import android.os.Bundle;
                 ^
Main.java:13: error: package android.app does not exist
import android.app.Activity;
                  ^
Main.java:14: error: package android.os does not exist
import android.os.Environment;
                 ^
Main.java:15: error: package android.support.v4.widget does not exist
import android.support.v4.widget.SwipeRefreshLayout;
                                ^
Main.java:16: error: package android.util does not exist
import android.util.Log;
                   ^
Main.java:17: error: package android.view does not exist
import android.view.View;
                   ^
Main.java:18: error: package android.widget does not exist
import android.widget.AdapterView;
                     ^
Main.java:19: error: package android.widget.AdapterView does not exist
import android.widget.AdapterView.OnItemClickListener;
                                 ^
Main.java:20: error: package android.widget does not exist
import android.widget.ArrayAdapter;
                     ^
Main.java:21: error: package android.widget does not exist
import android.widget.Button;
                     ^
Main.java:22: error: package android.widget does not exist
import android.widget.ListView;
                     ^
Main.java:23: error: package android.widget does not exist
import android.widget.TextView;
                     ^
Main.java:24: error: package android.widget does not exist
import android.widget.Toast;
                     ^
Main.java:26: error: package org.json does not exist
import org.json.JSONArray;
               ^
Main.java:27: error: package org.json does not exist
import org.json.JSONException;
               ^
Main.java:28: error: package org.json does not exist
import org.json.JSONObject;
               ^
Main.java:34: error: cannot find symbol
public class MainActivity extends Activity {
                                  ^
  symbol: class Activity
Main.java:35: error: cannot find symbol
    ListView userList;
    ^
  symbol:   class ListView
  location: class MainActivity
Main.java:36: error: cannot find symbol
    UserCustomAdapter userAdapter=null;
    ^
  symbol:   class UserCustomAdapter
  location: class MainActivity
Main.java:37: error: cannot find symbol
    ArrayList<User> userArray = new ArrayList<User>();
              ^
  symbol:   class User
  location: class MainActivity
Main.java:38: error: cannot find symbol
    private SwipeRefreshLayout swipeRefreshLayout;
            ^
  symbol:   class SwipeRefreshLayout
  location: class MainActivity
Main.java:39: error: cannot find symbol
    Button bt_view;
    ^
  symbol:   class Button
  location: class MainActivity
Main.java:40: error: cannot find symbol
    TextView tv_empty;
    ^
  symbol:   class TextView
  location: class MainActivity
Main.java:46: error: cannot find symbol
    protected void onCreate(Bundle savedInstanceState) {
                            ^
  symbol:   class Bundle
  location: class MainActivity
Main.java:145: error: cannot find symbol
    private class GetPapers extends AsyncTask<Void, Void, Void> {
                                    ^
  symbol:   class AsyncTask
  location: class MainActivity
Main.java:37: error: cannot find symbol
    ArrayList<User> userArray = new ArrayList<User>();
                                              ^
  symbol:   class User
  location: class MainActivity
Main.java:45: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:47: error: cannot find symbol
        super.onCreate(savedInstanceState);
        ^
  symbol:   variable super
  location: class MainActivity
Main.java:48: error: package R does not exist
        setContentView(R.layout.activity_main);
                        ^
Main.java:50: error: cannot find symbol
        bt_view = (Button) findViewById(R.id.bt_view);
                   ^
  symbol:   class Button
  location: class MainActivity
Main.java:50: error: package R does not exist
        bt_view = (Button) findViewById(R.id.bt_view);
                                         ^
Main.java:51: error: cannot find symbol
        userList = (ListView) findViewById(R.id.listView);
                    ^
  symbol:   class ListView
  location: class MainActivity
Main.java:51: error: package R does not exist
        userList = (ListView) findViewById(R.id.listView);
                                            ^
Main.java:52: error: cannot find symbol
        tv_empty= (TextView)findViewById(R.id.tv_empty);
                   ^
  symbol:   class TextView
  location: class MainActivity
Main.java:52: error: package R does not exist
        tv_empty= (TextView)findViewById(R.id.tv_empty);
                                          ^
Main.java:54: error: cannot find symbol
        new GetPapers().execute();
                       ^
  symbol:   method execute()
  location: class MainActivity.GetPapers
Main.java:56: error: cannot find symbol
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
                              ^
  symbol:   class SwipeRefreshLayout
  location: class MainActivity
Main.java:56: error: package R does not exist
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
                                                                ^
Main.java:57: error: package SwipeRefreshLayout does not exist
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
                                                                      ^
Main.java:68: error: cannot find symbol
        userList.setOnItemClickListener(new OnItemClickListener() {
                                            ^
  symbol:   class OnItemClickListener
  location: class MainActivity
Main.java:99: error: package View does not exist
        bt_view.setOnClickListener(new View.OnClickListener() {
                                           ^
Main.java:120: error: cannot find symbol
        userAdapter = new UserCustomAdapter(MainActivity.this, R.layout.row_item,
                          ^
  symbol:   class UserCustomAdapter
  location: class MainActivity
Main.java:120: error: package R does not exist
        userAdapter = new UserCustomAdapter(MainActivity.this, R.layout.row_item,
                                                                ^
Main.java:149: error: method does not override or implement a method from a supertype
        @Override
        ^
Main.java:151: error: cannot find symbol
            super.onPreExecute();
            ^
  symbol:   variable super
  location: class MainActivity.GetPapers
Main.java:157: error: method does not override or implement a method from a supertype
        @Override
        ^
Main.java:160: error: cannot find symbol
            JSONParser sh = new JSONParser();
            ^
  symbol:   class JSONParser
  location: class MainActivity.GetPapers
Main.java:160: error: cannot find symbol
            JSONParser sh = new JSONParser();
                                ^
  symbol:   class JSONParser
  location: class MainActivity.GetPapers
Main.java:165: error: cannot find symbol
            Log.d("Response: ", "> " + Response);
            ^
  symbol:   variable Log
  location: class MainActivity.GetPapers
Main.java:170: error: cannot find symbol
                    JSONArray jsonArray = new JSONArray(Response);
                    ^
  symbol:   class JSONArray
  location: class MainActivity.GetPapers
Main.java:170: error: cannot find symbol
                    JSONArray jsonArray = new JSONArray(Response);
                                              ^
  symbol:   class JSONArray
  location: class MainActivity.GetPapers
Main.java:174: error: cannot find symbol
                        JSONObject jsonObject = jsonArray.getJSONObject(i);
                        ^
  symbol:   class JSONObject
  location: class MainActivity.GetPapers
Main.java:183: error: cannot find symbol
                        userArray.add(new User(PaperName, Conts, id));
                                          ^
  symbol:   class User
  location: class MainActivity.GetPapers
Main.java:187: error: cannot find symbol
                } catch (JSONException e) {
                         ^
  symbol:   class JSONException
  location: class MainActivity.GetPapers
Main.java:200: error: method does not override or implement a method from a supertype
        @Override
        ^
Main.java:202: error: cannot find symbol
            super.onPostExecute(result);
            ^
  symbol:   variable super
  location: class MainActivity.GetPapers
Main.java:210: error: cannot find symbol
                tv_empty.setVisibility(View.VISIBLE);
                                       ^
  symbol:   variable View
  location: class MainActivity.GetPapers
62 errors

Standard output is empty