com.foreignreader.WordListActivity.java Source code

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Here is the source code for com.foreignreader.WordListActivity.java

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/*******************************************************************************
 * Copyright 2013 Vitaliy Yakovchuk
 * 
 * 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.foreignreader;

import java.io.File;

import com.foreignreader.util.LongTranslationHelper;
import com.foreignreader.R;
import com.reader.common.ObjectsFactory;

import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.FragmentActivity;
import android.widget.TextView;

/**
 * An activity representing a list of Words. 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 WordDetailActivity} 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 WordListFragment} and the item details (if present) is a
 * {@link WordDetailFragment}.
 * <p>
 * This activity also implements the required {@link WordListFragment.Callbacks}
 * interface to listen for item selections.
 */
public class WordListActivity extends FragmentActivity implements WordListFragment.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);

        if (BooksActivity.TESTING_STORGE)
            ObjectsFactory.storageFile = new File(getFilesDir(), "words.db");
        else {
            File file = new File(
                    Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getParentFile(),
                    "Foreign Reader");
            file.mkdirs();
            ObjectsFactory.storageFile = new File(file, "words.db");
        }

        setContentView(R.layout.activity_word_list);

        if (BooksActivity.TESTING_STORGE)
            ObjectsFactory.storageFile = new File(getFilesDir(), "words.db");
        else {
            File file = new File(
                    Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getParentFile(),
                    "Foreign Reader");
            file.mkdirs();
            ObjectsFactory.storageFile = new File(file, "words.db");
        }

        int[] n = ObjectsFactory.getDefaultDatabase().getWordsCount();

        if (findViewById(R.id.word_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;

            TextView stat = (TextView) findViewById(R.id.statisticTextView);
            stat.setText("Known words: " + n[0] + "   Unknown words: " + n[1]);

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

    }

    /**
     * Callback method from {@link WordListFragment.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(WordDetailFragment.ARG_ITEM_ID, id);
            WordDetailFragment fragment = new WordDetailFragment();
            fragment.setArguments(arguments);
            getSupportFragmentManager().beginTransaction().replace(R.id.word_detail_container, fragment).commit();

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

    @Override
    protected void onStop() {
        super.onStop();
        new LongTranslationHelper().close();
    }
}