Detect onclick event from imageview using interface

MyClickAction.java

package com.dodyrw.mpos;

/**
 * Created by dodyrw on 1/14/15.
 */
public interface MyClickAction {
    void onImageClick(int position);
}

OrderListActivity.java

package com.dodyrw.mpos;

import android.app.Dialog;
import android.content.Intent;
import android.graphics.drawable.ColorDrawable;
import android.support.v4.app.NavUtils;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;


public class OrderListActivity extends ActionBarActivity implements /*AdapterView.OnItemClickListener,*/ MyClickAction {

    Toolbar toolbar;
    TextView screenTitle;
    ListView list;
    ImageView btnProcess;
    ImageView btnAddItem;

    String[] number = {
            "1",
            "2",
            "3",
            "4",
            "5",
            "6"
    };
    String[] code = {
            "454334",
            "454684",
            "454365",
            "454211",
            "454856",
            "454975"
    };
    String[] itemName = {
            "Beef Enchilada Stack",
            "Loaded Potato Soup",
            "Sparkling Straweberry Lemonade Slush",
            "Spaghetti Pie",
            "Fun Sundaes",
            "Lemon Tea"
    };
    String[] qty = {
            "3",
            "1",
            "3",
            "1",
            "2",
            "1"
    };
    String[] price = {
            "80,000",
            "75,000",
            "60,000",
            "40,000",
            "12,000",
            "4,000"
    };

    //MyClickAction clickAction;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_order_list);

        initWidget();
        initEvent();
    }

    private void initWidget() {
        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        if (toolbar != null) {
            toolbar.setLogo(R.drawable.toolbar_icon);
            toolbar.setTitle("");
            setSupportActionBar(toolbar);
        }

        getSupportActionBar().setHomeButtonEnabled(true);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        screenTitle = (TextView) findViewById(R.id.screen_title);
        screenTitle.setText("Order List");


        OrderListListAdapter adapter = new OrderListListAdapter(OrderListActivity.this, this, number, code, itemName, qty, price);
        list = (ListView) findViewById(R.id.list);
        list.setAdapter(adapter);

        btnProcess = (ImageView) findViewById(R.id.process_imageview);
        btnAddItem = (ImageView) findViewById(R.id.add_imageview);




        // add waiter info on action bar
        ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayShowCustomEnabled(true);

        LayoutInflater inflator = (LayoutInflater) this .getSystemService(this.LAYOUT_INFLATER_SERVICE);
        View v = inflator.inflate(R.layout.waiter_info_actionbar_custom_view_top_right, null);

        actionBar.setCustomView(v);



    }

    private void initEvent() {
        btnProcess.setOnClickListener(new ImageView.OnClickListener() {
            @Override
            public void onClick(View v) {
                processOrder();
            }
        });

        btnAddItem.setOnClickListener(new ImageView.OnClickListener() {
            @Override
            public void onClick(View v) {
                addItem();
            }
        });
    }

    private void addItem() {
        startActivity(new Intent(this, OrderAddActivity.class));
    }

    private void processOrder() {
        startActivity(new Intent(this, ChoosePaymentActivity.class));
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
        if(id==android.R.id.home){
            NavUtils.navigateUpFromSameTask(this);
        }
        return super.onOptionsItemSelected(item);
    }

    public void showDialogDelete(int position) {

        Log.e("MPOS","showDialogDelete: "+position+": "+itemName[position]);

        // custom dialog
        final Dialog dialog = new Dialog(this);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
        dialog.setContentView(R.layout.dialog_order_list_delete);

        // set the custom dialog components - text, image and button
        TextView itemName = (TextView) dialog.findViewById(R.id.item_textview);
        itemName.setText("\"Spaghetti Pie\"");

        ImageView cancelButton = (ImageView) dialog.findViewById(R.id.cancel_imageview);
        ImageView okButton = (ImageView) dialog.findViewById(R.id.ok_imageview);

        cancelButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });

        okButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });

        dialog.show();
    }


    @Override
    public void onImageClick(int position) {
        showDialogDelete(position);
    }
}

OrderListListAdapter.java

package com.dodyrw.mpos;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * Created by dodyrw on 1/11/15.
 */
public class OrderListListAdapter extends BaseAdapter {
    private Context mContext;
    private final String[] no;
    private final String[] code;
    private final String[] itemName;
    private final String[] qty;
    private final String[] price;
    MyClickAction clickAction;

    private ImageView imgDelete;



    //private ViewClickListener mViewClickListener;

    public OrderListListAdapter(Context c, MyClickAction action, String[] no,  String[] code, String[] itemName, String[] qty, String[] price) {
        mContext = c;
        this.no = no;
        this.code = code;
        this.itemName = itemName;
        this.qty = qty;
        this.price = price;
        this.clickAction = action;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return code.length;
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return itemName[position];
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        View view;
        LayoutInflater inflater = (LayoutInflater) mContext
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        if (convertView == null) {
            view = new View(mContext);
            view = inflater.inflate(R.layout.order_list_list_row, null);


            TextView txtNumber = (TextView) view.findViewById(R.id.number_textview);
            TextView txtCode = (TextView) view.findViewById(R.id.code_textview);
            TextView txtItemName = (TextView) view.findViewById(R.id.item_name_textview);
            TextView txtQty = (TextView) view.findViewById(R.id.qty_textview);
            TextView txtPrice = (TextView) view.findViewById(R.id.price_textview);
            imgDelete = (ImageView) view.findViewById(R.id.delete_imageview);

            txtNumber.setText(no[position]);
            txtCode.setText(code[position]);
            txtItemName.setText(itemName[position]);
            txtQty.setText(qty[position]);
            txtPrice.setText(price[position]);


            imgDelete.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {

                    // call implement method
                    clickAction.onImageClick(position);

                }
            });

        } else {
            view = (View) convertView;
        }

        return view;
    }



}