Getting text from a website in Java for Android

[Tazman192]

32 minutes ago, EvilCat70 said:

'parsedLine' cannot be resolved.

'findViewById' method cannot be resolved.

 

 

package com.flareradio.flareradio;
 
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.io.InputStream;
 
public class MainMenu extends AppCompatActivity {
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_menu);

        // Calls the doInBackground and onPostExecute method in the Asynctask
        new ParseWebsiteTask().execute();

    }
 
    public String getSongName() {

        String songHTML = null;
        try {

            // Here we make a URL to the web page
            URL flare = new URL("http://www.api.flare-radio.com/php/song/");

            // Next, we need to get the input stream through the URL connection
            // (you were missing this step)
            URLConnection connection = flare.openConnection();
            InputStream is = connection.getInputStream();


            // Once an input stream is created, the rest is basic Java IO method calling


            BufferedReader in = new BufferedReader(new InputStreamReader(is));

            // Read one line at a time and concatenate to the songHTML string
            while ((parsedLine = in.readLine()) != null) {
                songHTML += parsedLine;
            }   

            in.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return songHTML;
    }



    class ParseWebsiteTask extends AsyncTask<Void, Void, String> {
        
         protected String doInBackground(URL... urls) {
            
            String songHTML = null;
            try {

                // Here we make a URL to the web page
                URL flare = new URL("http://www.api.flare-radio.com/php/song/");

                // Next, we need to get the input stream through the URL connection
                URLConnection connection = flare.openConnection();
                InputStream is = connection.getInputStream();


                // Once an input stream is created, the rest is basic Java IO method calling


                BufferedReader in = new BufferedReader(new InputStreamReader(is));

                // Read one line at a time and concatenate to the songHTML string
                String parsedLine;
                while ((parsedLine = in.readLine()) != null) {
                    songHTML += parsedLine;
                }   

                in.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }

            // The return value is passed as a parameter into onPostExecute
            return songHTML;
        }


        protected void onPostExecute(String result) {
            // Sanity check - Check if the result was passed correclty
            Log.i(TAG, result); 

            // Add the result to the textView. If the Log prints null, this won't work
            TextView textView = (TextView) findViewById(R.id.textView);
            textView.setText(result);
        }
     }
 

 
}

Should fix the parsedLine problem. As for the second problem, unsure why findViewById isn't working. Copy that exact code and report back.

[RileyTheFox]

17 hours ago, Tazman192 said:

 

 

package com.flareradio.flareradio;
 
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.io.InputStream;
 
public class MainMenu extends AppCompatActivity {
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_menu);

        // Calls the doInBackground and onPostExecute method in the Asynctask
        new ParseWebsiteTask().execute();

    }
 
    public String getSongName() {

        String songHTML = null;
        try {

            // Here we make a URL to the web page
            URL flare = new URL("http://www.api.flare-radio.com/php/song/");

            // Next, we need to get the input stream through the URL connection
            // (you were missing this step)
            URLConnection connection = flare.openConnection();
            InputStream is = connection.getInputStream();


            // Once an input stream is created, the rest is basic Java IO method calling


            BufferedReader in = new BufferedReader(new InputStreamReader(is));

            // Read one line at a time and concatenate to the songHTML string
            while ((parsedLine = in.readLine()) != null) {
                songHTML += parsedLine;
            }   

            in.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return songHTML;
    }



    class ParseWebsiteTask extends AsyncTask<Void, Void, String> {
        
         protected String doInBackground(URL... urls) {
            
            String songHTML = null;
            try {

                // Here we make a URL to the web page
                URL flare = new URL("http://www.api.flare-radio.com/php/song/");

                // Next, we need to get the input stream through the URL connection
                URLConnection connection = flare.openConnection();
                InputStream is = connection.getInputStream();


                // Once an input stream is created, the rest is basic Java IO method calling


                BufferedReader in = new BufferedReader(new InputStreamReader(is));

                // Read one line at a time and concatenate to the songHTML string
                String parsedLine;
                while ((parsedLine = in.readLine()) != null) {
                    songHTML += parsedLine;
                }   

                in.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }

            // The return value is passed as a parameter into onPostExecute
            return songHTML;
        }


        protected void onPostExecute(String result) {
            // Sanity check - Check if the result was passed correclty
            Log.i(TAG, result); 

            // Add the result to the textView. If the Log prints null, this won't work
            TextView textView = (TextView) findViewById(R.id.textView);
            textView.setText(result);
        }
     }
 

 
}

Should fix the parsedLine problem. As for the second problem, unsure why findViewById isn't working. Copy that exact code and report back.

ParseWebsiteTask class must be abstract or implement doInBackground method. What do I need to put there? 

[Tazman192]

10 hours ago, EvilCat70 said:

ParseWebsiteTask class must be abstract or implement doInBackground method. What do I need to put there? 

 

Ah, forgot to add an @Override annotation. Above the doInBackground() and onPostExecute() methods, add @Override e.g:

	@Override
	protected String doInBackground(URL... urls) {
            
            String songHTML = null;
            try {

                // Here we make a URL to the web page
                URL flare = new URL("http://www.api.flare-radio.com/php/song/");

                // Next, we need to get the input stream through the URL connection
                URLConnection connection = flare.openConnection();
                InputStream is = connection.getInputStream();


                // Once an input stream is created, the rest is basic Java IO method calling


                BufferedReader in = new BufferedReader(new InputStreamReader(is));

                // Read one line at a time and concatenate to the songHTML string
                String parsedLine;
                while ((parsedLine = in.readLine()) != null) {
                    songHTML += parsedLine;
                }   

                in.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }

            // The return value is passed as a parameter into onPostExecute
            return songHTML;
        }

        @Override
        protected void onPostExecute(String result) {
            // Sanity check - Check if the result was passed correclty
            Log.i(TAG, result); 

            // Add the result to the textView. If the Log prints null, this won't work
            TextView textView = (TextView) findViewById(R.id.textView);
            textView.setText(result);
        }
     

 

[RileyTheFox]

14 hours ago, Tazman192 said:

 

Ah, forgot to add an @Override annotation. Above the doInBackground() and onPostExecute() methods, add @Override e.g:

	@Override
	protected String doInBackground(URL... urls) {
            
            String songHTML = null;
            try {

                // Here we make a URL to the web page
                URL flare = new URL("http://www.api.flare-radio.com/php/song/");

                // Next, we need to get the input stream through the URL connection
                URLConnection connection = flare.openConnection();
                InputStream is = connection.getInputStream();


                // Once an input stream is created, the rest is basic Java IO method calling


                BufferedReader in = new BufferedReader(new InputStreamReader(is));

                // Read one line at a time and concatenate to the songHTML string
                String parsedLine;
                while ((parsedLine = in.readLine()) != null) {
                    songHTML += parsedLine;
                }   

                in.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }

            // The return value is passed as a parameter into onPostExecute
            return songHTML;
        }

        @Override
        protected void onPostExecute(String result) {
            // Sanity check - Check if the result was passed correclty
            Log.i(TAG, result); 

            // Add the result to the textView. If the Log prints null, this won't work
            TextView textView = (TextView) findViewById(R.id.textView);
            textView.setText(result);
        }
     

 

Now what do I do? The protected String is returning songHTML which is a string...

[Tazman192]

10 hours ago, EvilCat70 said:

Now what do I do? The protected String is returning songHTML which is a string...

In the line "private class ParseWebsiteTask..." change Long to String, like it is in my original code.

 

I'd recommend you read up a little on android development.

[RileyTheFox]

4 hours ago, Tazman192 said:

In the line "private class ParseWebsiteTask..." change Long to String, like it is in my original code.

 

I'd recommend you read up a little on android development.

Well while I was waiting for a reply I did change it but it still said it was clashing