Question

Everywhere I’ve seen, they have used Threading with onClick. Now i am kind of forced to use Threading as i can not perform a networking operation on its main thread as documentation says. So how would i put The threading on a button that i have coded something like this?

public void firstbutton(View view) 
{
//some code
}

Thanks for the help!

EDIT:

        public void firstbutton(View view) 
    {
        InputMethodManager inputMgr = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
        EditText editText = (EditText)findViewById(R.id.editText1);
        inputMgr.hideSoftInputFromWindow(editText.getWindowToken(), 0);

        EditText idnumber=(EditText)findViewById(R.id.editText1);
        String idnumber2= idnumber.getText().toString();
        int i = Integer.parseInt(editText.getText().toString());
        idnum=i;
        setContentView(R.layout.viewer);
        Context context = view.getContext();
        Drawable image = ImageOperations(context, WEB ADDRESS HIDDEN FOR PRIVACY"+idnumber2);
        ImageView icon = new ImageView(context);
        icon = (ImageView)findViewById(R.id.imageView1);
        icon.setImageDrawable(image);
};


public Drawable ImageOperations(Context ctx, String url) {
    try {
        InputStream is = (InputStream) this.fetch(url);
        Drawable d = Drawable.createFromStream(is, "src");
        return d;
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return null;
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

public Object fetch(String address) throws MalformedURLException,IOException
{
URL url = new URL(address);
Object content = url.getContent();
return content;
}

Answer 1

It depends on what you want to achieve.

If you just want to start a new thread for your networking stuff, you can use the Thread method like this:

public void firstbutton(View view) 
{
    new Thread() {
        @Override
        public void run() {
            // Do your network stuff
        }
    }.start();
}

If you need to update the UI once the network operation is done, AsyncTask is probably a better choice:

    new AsyncTask<Void,Void,ResultType>() {
        @Override
        protected ResultType doInBackground(Void... params) {
            // Do network stuff
            return someResult;
        }

        protected void onPostExecute(ResultType result) {
            // Update UI with your result
        };
    };