com.adefran.recipelist.RecipeListActivity.java Source code

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Here is the source code for com.adefran.recipelist.RecipeListActivity.java

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/*
 * Copyright 2014 Anthony DeFrancesco
 *
 *    Licensed 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 com.adefran.recipelist;

import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

import com.firebase.client.Firebase;

/**
 * An activity representing a list of Recipes. This activity
 * has different presentations for handset and tablet-size devices. On
 * handsets, the activity presents a list of items, which when touched,
 * lead to a {@link RecipeDetailActivity} representing
 * item details. On tablets, the activity presents the list of items and
 * item details side-by-side using two vertical panes.
 * <p>
 * The activity makes heavy use of fragments. The list of items is a
 * {@link RecipeListFragment} and the item details
 * (if present) is a {@link RecipeDetailFragment}.
 * <p>
 * This activity also implements the required
 * {@link RecipeListFragment.Callbacks} interface
 * to listen for item selections.
 */
public class RecipeListActivity extends FragmentActivity implements RecipeListFragment.Callbacks {

    /**
     * Whether or not the activity is in two-pane mode, i.e. running on a tablet
     * device.
     */
    private boolean mTwoPane;

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

        if (findViewById(R.id.recipe_detail_container) != null) {
            // The detail container view will be present only in the
            // large-screen layouts (res/values-large and
            // res/values-sw600dp). If this view is present, then the
            // activity should be in two-pane mode.
            mTwoPane = true;

            // In two-pane mode, list items should be given the
            // 'activated' state when touched.
            ((RecipeListFragment) getSupportFragmentManager().findFragmentById(R.id.recipe_list))
                    .setActivateOnItemClick(true);
        }

        // TODO: If exposing deep links into your app, handle intents here.
    }

    /**
     * Callback method from {@link RecipeListFragment.Callbacks}
     * indicating that the item with the given ID was selected.
     */
    @Override
    public void onItemSelected(String id) {
        if (mTwoPane) {
            // In two-pane mode, show the detail view in this activity by
            // adding or replacing the detail fragment using a
            // fragment transaction.
            Bundle arguments = new Bundle();
            arguments.putString(RecipeDetailFragment.ARG_ITEM_ID, id);
            RecipeDetailFragment fragment = new RecipeDetailFragment();
            fragment.setArguments(arguments);
            getSupportFragmentManager().beginTransaction().replace(R.id.recipe_detail_container, fragment).commit();

        } else {
            // In single-pane mode, simply start the detail activity
            // for the selected item ID.
            Intent detailIntent = new Intent(this, RecipeDetailActivity.class);
            detailIntent.putExtra(RecipeDetailFragment.ARG_ITEM_ID, id);
            startActivity(detailIntent);
        }
    }
}