Android Open Source - ActiveAndroidDemo Main

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.gannon.activeandroiddemo.activities;
/*from   w  w  w  .  j ava  2 s .c  o m*/
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.Toast;

import com.gannon.activeandroiddemo.R;
import com.gannon.activeandroiddemo.adapters.ProductArrayAdapter;
import com.gannon.activeandroiddemo.fragments.AddProductDialogFragment;
import com.gannon.activeandroiddemo.helpers.ModelHelper;
import com.gannon.activeandroiddemo.models.Category;
import com.gannon.activeandroiddemo.models.Product;

import java.util.List;

import butterknife.ButterKnife;
import butterknife.InjectView;
import butterknife.OnClick;
import butterknife.OnItemClick;
import butterknife.OnItemSelected;

/**
 * Main Activity
 */
public class Main extends Activity
{
    @InjectView(R.id.filter_spinner)
    protected Spinner filterSpinner;
    @InjectView(R.id.product_list)
    protected ListView productList;

    private ArrayAdapter<Category> categoryAdapter;
    private ProductArrayAdapter    productsAdapter;

    public void reloadCurrent()
    {
        filterSpinnerItemSelect();
    }

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

    @Override
    protected void onPostCreate(Bundle savedInstanceState)
    {
        super.onPostCreate(savedInstanceState);

        ButterKnife.inject(this);

        categoryAdapter = new ArrayAdapter<Category>(this, android.R.layout.simple_spinner_item);
        productsAdapter = new ProductArrayAdapter(this);

        filterSpinner.setAdapter(categoryAdapter);
        productList.setAdapter(productsAdapter);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    protected void onResume() // reload adapter contents on resume
    {
        super.onResume();

        setCategoryAdapterSource(Category.getAll());
        setProductAdapterSource(Product.getAll());
    }

    @OnClick(R.id.add_button)
    protected void addButtonClick()
    {
        String tag = getResources().getString(R.string.add_product_dialog_tag);

        AddProductDialogFragment dialog = new AddProductDialogFragment();

        dialog.show(getFragmentManager(), tag);
    }

    @OnClick(R.id.reset_button)
    protected void resetButtonClick()
    {
        ModelHelper.seedProducts();

        filterSpinner.setSelection(0);

        setProductAdapterSource(Product.getAll());
    }

    @OnClick(R.id.clear_button)
    protected void clearButtonClick()
    {
        Product.deleteAll();

        filterSpinner.setSelection(0);

        setProductAdapterSource(Product.getAll());
        setCategoryAdapterSource(Category.getAll());
    }

    @OnItemSelected(R.id.filter_spinner)
    protected void filterSpinnerItemSelect()
    {
        Category category = (Category) filterSpinner.getSelectedItem();

        if (category.name.equals("(None)"))
        {
            setProductAdapterSource(Product.getAll());
        }
        else
        {
            setProductAdapterSource(category.getProducts());
        }
    }

    @OnItemClick(R.id.product_list)
    protected void productListItemSelect(int position)
    {
        Product product = (Product)productList.getItemAtPosition(position);

        Toast.makeText(this, "Product ID " + product.getId(), Toast.LENGTH_SHORT).show();
    }

    /**
     * Set category adapter data source and update
     * @param categories List of Category categories to set
     */
    private void setCategoryAdapterSource(List<Category> categories)
    {
        categoryAdapter.clear();
        categoryAdapter.add(ModelHelper.getPlaceholderCategory());
        categoryAdapter.addAll(categories);
        categoryAdapter.notifyDataSetChanged();
    }

    /**
     * Set product adapter data source and update
     * @param products List of Product categories to set
     */
    private void setProductAdapterSource(List<Product> products)
    {
        productsAdapter.clear();
        productsAdapter.addAll(products);
        productsAdapter.notifyDataSetChanged();
    }
}

Java Source Code List

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