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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package store.android;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import services.Catalog;
import services.CatalogProxy;
import services.Item;
import services.ShoppingCartProxy;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Typeface;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabHost.TabSpec;
import android.view.LayoutInflater;
public class catalog extends TabActivity {
private Catalog catalogProxy = new CatalogProxy();
private ShoppingCartProxy shoppingCartProxy = new ShoppingCartProxy();
TabHost mTabHost;
ListView itemsList, cartList;
TextView txtTotal,txtEmpty;
TabSpec catalogTab, cartTab;
Button btnClean;
Item[] items;
List<Item> cartItems=new ArrayList<Item>();
private void getCatalogItems() {
items=catalogProxy.get();
}
private void getCartItems()
{
Item[] i=shoppingCartProxy.getItems();
if(i!=null)
{
for(Item item:i)
{
cartItems.add(item);
}
}
Log.e(getString(R.string.app_tag), String.valueOf(cartItems.size())+" cart items retrieved");
}
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e(getString(R.string.app_tag), getString(R.string.start_tag));
//Load UI from layout file
setContentView(R.layout.main);
findViews();
//Get data to be loaded to UI
getCatalogItems();
getCartItems();
//Load UI with data
itemsList.setAdapter(new ArrayAdapter<Item>(this,
R.layout.cat_row,R.id.txtItemC,items));
itemsList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
itemsList.setClickable(true);
reloadShoppingCart();
//Set Listeners
listen();
}
/**
* Retrieve UI Content
*/
public void findViews()
{
mTabHost = getTabHost();
mTabHost.addTab(mTabHost.newTabSpec(getString(R.string.tab_catalog)).setIndicator(getString(R.string.title_catalog)).setContent(R.id.ListView01));
mTabHost.addTab(mTabHost.newTabSpec(getString(R.string.tab_shop)).setIndicator(getString(R.string.title_shop)).setContent(R.id.tab02));
mTabHost.setCurrentTab(0);
itemsList=(ListView)findViewById(R.id.ListView01);
cartList=(ListView)findViewById(R.id.ListView02);
btnClean=(Button)findViewById(R.id.btnClean);
btnClean.setText(R.string.btn_clean);
txtTotal=(TextView)findViewById(R.id.txtTotal);
txtTotal.setTextSize((float) 15.0);
txtTotal.setTypeface(Typeface.DEFAULT_BOLD);
txtEmpty=(TextView)findViewById(R.id.txtEmpty);
txtEmpty.setTypeface(null, Typeface.ITALIC);
}
/**
* Implements all needed listeners for the UI
*/
public void listen()
{
//Handles total display between tab switching
mTabHost.setOnTabChangedListener(new OnTabChangeListener(){
public void onTabChanged(String tabId) {
// TODO Auto-generated method stub
if(tabId.compareTo("shopping_cart_tab")==0)
reloadShoppingCart();
}
});
btnClean.setOnClickListener(new OnClickListener(){
public void onClick(View arg0) {
// TODO Auto-generated method stub
new AlertDialog.Builder(catalog.this)
.setTitle("Tuscany Android Store")
.setMessage("You're about to erase all items. Proceed ?")
.setIcon(R.drawable.icon)
.setPositiveButton(R.string.alert_yes,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
if(shoppingCartProxy.clearCartContent())
{
cartItems.clear();
Log.i(getString(R.string.app_tag), getString(R.string.del_all_ok));
reloadShoppingCart();
}
}})
.setNegativeButton(R.string.alert_cancel, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
})
.show();
}
});
itemsList.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
addItemAction(items[(int)arg3]);
}
});
cartList.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
removeItemAction(cartItems.get((int)arg3));
}
});
}
public void addItemAction(Item item)
{
//add item to shopping cart.
Item tmp=new Item(item.getName(), item.getPrice());
if(shoppingCartProxy.addItem(tmp))
{
cartItems.add(tmp);
Log.i(getString(R.string.app_tag), getString(R.string.add_entry_ok)+item);
}
else
Log.e(getString(R.string.app_tag), getString(R.string.add_entry_ko)+item);
}
public void removeItemAction(Item item)
{
if(shoppingCartProxy.removeItem(item) && cartItems.remove(item))
{
Log.i(getString(R.string.app_tag), getString(R.string.del_entry_ok)+item);
}
else
Log.i(getString(R.string.app_tag), getString(R.string.del_entry_ko)+item);
reloadShoppingCart();
}
/**
* Refreshes the Shopping cart list when the adapter behind is updated
*/
public void reloadShoppingCart()
{
Item[] cartArray=new Item[cartItems.size()];
cartList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
cartList.setClickable(true);
cartList.setAdapter(new ArrayAdapter<Item>(this,
R.layout.shop_row, R.id.txtItemS, cartItems.toArray(cartArray)));
if(!cartList.getAdapter().isEmpty())
{
txtTotal.setVisibility(TextView.VISIBLE);
txtEmpty.setText("Click on an item below to remove it");
btnClean.setVisibility(Button.VISIBLE);
}
else
{
txtTotal.setVisibility(TextView.INVISIBLE);
txtEmpty.setVisibility(TextView.VISIBLE);
txtEmpty.setText(R.string.txt_empty);
btnClean.setVisibility(Button.INVISIBLE);
}
String tt=shoppingCartProxy.getTotal();
txtTotal.setText(getString(R.string.title_order)+": "+(tt.length()>5?tt.substring(0,5):tt));
}
}
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