Lab8 Part 2 About Us

#1 Create an About.txt and save it in the C:\wamp64\www\data folder of the WampServer.

Networking Activity Version: 2.01 Author: Your Name An Android Program to illustrate networking capabilities of Android Copyright of TP

#2 : Create a menu item see Lab4 #2

 Create a Menu folder

Right-clicked on res folder> New> Folder> Res folder

#3 Create a Menu resource file menu_main.xml

menu_main.xml

Type the followings in the xml file

<?xml version="1.0" encoding="utf-8"?><menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item  android:id="@+id/item1"        android:title="About Us"/>
</menu>

#4  Add this method in MainActivity.java

@Overridepublic boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.    
 getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}


public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    switch (id){
        case R.id.item1:
            Toast.makeText(getApplicationContext(),"About Us Selected",Toast.LENGTH_LONG).show();

           // Intent i = new Intent(getApplicationContext(), AboutActivity.class);
           // startActivity(i);

            return true;

        default:
            return super.onOptionsItemSelected(item);
    }
}

#5  Create a new Activity called AboutActivity.java

Given the partial codes, place them in the correct sections of AboutActivity.java

TextView tvAbout;

tvAbout = (TextView)findViewById( R.id.txtAbout );
new NetworkTask().execute("http://172.30.103.238:81/data/About.txt");

//AsyncTask inner class needed because of StrictMode to ensure network
// tasks are on separate threads
    private class NetworkTask extends AsyncTask<String, Void, String> {
        String  testMsg="";
        protected String doInBackground(String... params) {

            try{

                System.out.println("NetworkTask started……"); //print to logcat for debugging
                URL url = new URL(params[0]);

                HttpURLConnection con = (HttpURLConnection)url.openConnection();
                con.setRequestProperty("Accept", "text/plain");
                BufferedReader br =new BufferedReader(new InputStreamReader(con.getInputStream()));

                String line;      int i=0;
                //read values from config.txt in the server over the network
                while((line=br.readLine())!=null) {
                    testMsg+=line+"\n";
                }
                con.disconnect();
            }
            catch(IOException e){ Log.e("error", "error in reading", e); }
            return testMsg;

        }//end of doInBackground method
        protected void onPostExecute(String result) {
            tvAbout.setText(result);

        }//end onPostExecute method
    }//end of inner class NetworkTask

For Part 2 you may also use the about.txt from atspace.com too.

// new AboutTask().execute("http://10.0.2.2:8080/MDAD/html/about.txt");          

new AboutTask().execute("http://mdad.atspace.cc/data/About.txt");

For those students using phone you may test it as this address:
http://mdad.atspace.cc/data/About.txt