Trying to start a new activity and pass a String with a ListActivity

Question

I am making a simple Browser and i am trying to make a favorites page.

So far, I created a HomePage class which has the code:

package com.example.browser3;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.Browser;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

@SuppressLint("SetJavaScriptEnabled")
// Indicates that Lint should ignore the specified warnings for the annotated
// element.
public class HomePage extends Activity implements OnClickListener {

WebView ourBrow; // create a WebView object
EditText url; // create an EditText object
String theWebsite;
String theHomePage;


public String getTheHomePage() {
    return theHomePage;
}


public void setTheHomePage(String theHomePage) {
    this.theHomePage = theHomePage;
}






public String readFile(String fileName,String a){
    try {
        InputStream in=openFileInput(fileName);
        if(in!=null){
            InputStreamReader reader= new InputStreamReader(in);
            BufferedReader buffreader= new BufferedReader(reader);

            StringBuilder builder= new StringBuilder();
            String str;
            while((str=buffreader.readLine())!=null){
                builder.append(str+ "\n");

                a= builder.toString();
            }
            in.close();

        }
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return a;

}



  public void writeFile(String fileName, String x){

    try {
        OutputStreamWriter out=new OutputStreamWriter(openFileOutput(fileName,MODE_APPEND));
        out.write(x+"\n");

        out.close();
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}


@Override
protected void onResume() {
    ourBrow.loadUrl(theHomePage);
super.onResume();
}


@Override
protected void onCreate(Bundle savedInstanceState) { // onCreate is called
                                                        // in order to initialize(Start)
                                                        // our activity.
                                                        // 
                                                        // This is where
                                                        // most
                                                        // initialization
                                                        // goes
    super.onCreate(savedInstanceState); // Derived class onCreate(bundle)
                                        // method must call super class
                                        // implementation of this method. If
                                        // you do not then an exception will
                                        // be thrown SuperNotCalledException
    setContentView(R.layout.fragment_main); // Set the activity content from
                                            // a layout resource using
                                            // findViewById to interact with
                                            // widgets

    ourBrow = (WebView) findViewById(R.id.wvBrowser); // finds the webView
                                                        // identified in
                                                        // fragment_main by
                                                        // the id
                                                        // "wvBrowser"
    ourBrow.getSettings().setJavaScriptEnabled(true); // Enables JavaScript
    ourBrow.getSettings().setLoadWithOverviewMode(true); // Zooms out the
                                                            // page for easy
                                                            // navigation
    ourBrow.getSettings().setUseWideViewPort(true); // Allow us to set the
                                                    // normal view point.
                                                    // Not to be too small
                                                    // or too big for the
                                                    // screen
    ourBrow.setWebViewClient(new ourViewClient()); // Overrides the
                                                    // emulator's browser
                                                    // because it can
                                                    // interfere with this
                                                    // one
    try {
        ourBrow.loadUrl(readFile("home.txt",theHomePage)); // We must throw and catch
                                                    // an exception for
                                                    // example when it
                                                    // cannot load because
                                                    // it doesn't have
                                                    // Internet
    } catch (Exception e) {
        e.printStackTrace();
    }

    Button go = (Button) findViewById(R.id.bGo); // Set buttons from
                                                    // fragment_main with
    Button menu= (Button) findViewById(R.id.bMenu);                                         // different IDs
    Button back = (Button) findViewById(R.id.bBack);
    Button forw = (Button) findViewById(R.id.bForward);
    Button ref = (Button) findViewById(R.id.bRefresh);


    url = (EditText) findViewById(R.id.tUrl); // Finds the text identified
                                                // in fragment_main by the
    menu.setOnClickListener(this);                                          // id "tUrl"
    go.setOnClickListener(this);
    back.setOnClickListener(this);
    ref.setOnClickListener(this); // Registers a callback to be invoked when
                                    // this view is clicked
    forw.setOnClickListener(this);

}
private void clickHome(){
    startActivity(new Intent("com.example.browser3.MENU"));
}
@Override
public void onClick(View v) { // This function is called when a view is
                                // clicked
    switch (v.getId()) { // Used to identify the view by id
    case R.id.bMenu:
        clickHome();

    case R.id.bGo:



         theWebsite = url.getText().toString(); // Returns the text
                                                        // which textView is
                                                        // displaying as an
                                                        // identical String
                                                        // in the variable
                                                        // theWebsite
        writeFile("history.txt", theWebsite);

        ourBrow.loadUrl(theWebsite); // Loads the given Url, in our case
                                        // (thewebsite)
        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); // We
                                                                                                        // set
                                                                                                        // up
                                                                                                        // our
                                                                                                        // inputManager
        imm.hideSoftInputFromWindow(url.getWindowToken(), 0); // We use the
                                                                // method
                                                                // that will
                                                                // hide our
                                                                // keyboard
        break;
    case R.id.bBack:
        if (ourBrow.canGoBack()) // Gets whether the WebView has a back
                                    // history item
            ourBrow.goBack(); // Goes back in the history of the WebView.
        break;
    case R.id.bForward:
        if (ourBrow.canGoForward()) // Gets whether the WebView has a
                                    // forward history item.
            ourBrow.goForward(); // Goes forward in the history of the
                                    // WebView.
        break;
    case R.id.bRefresh:
        ourBrow.reload(); // Reloads the current URL.
        break;
    }

}


}

and a ListActivity class with the code:

package com.example.browser3;

import java.util.ArrayList;

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class Favorite2 extends ListActivity {

String[] elements={"http://www.yahoo.com","http://www.facebook.com"};
ArrayAdapter<String> adapter;
HomePage object=new HomePage();

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setListAdapter(new ArrayAdapter<String>(Favorite2.this , android.R.layout.simple_list_item_1 , elements));
}

protected void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);

    try{
    Class ourClass = Class.forName("com.example.browser3.HomePage");// ce e aici aia porneste la click
    Intent ourIntent = new Intent(Favorite2.this , ourClass);
    String s=elements[position];
    object.ourBrow.loadUrl(s);
    startActivity(ourIntent);


            }
    catch(ClassNotFoundException e){
        e.printStackTrace();
    }
}
}

All I want is when i click one of the ListActivity members in the Favorite2 class, to start the HomePage activity and to take the name, which is a String in the String array elements and to load it in the webview or just to enter it in the EditText named url. Can someone help me please?

Answer 1

Add it as an extra to your intent:

Intent ourIntent = new Intent(Favorite2.this , ourClass);
ourIntent.putExtra("name", your_string);
startActivity(ourIntent);

And in your activity get the extra and set it to your EditText:

url = (EditText) findViewById(R.id.tUrl); // Finds the text identified
String name = getIntent().getStringExtra("name");
if (name != null) {
    url.setText(name);
}