com.gmail.emerssso.srbase.ListDailiesActivity.java Source code

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Here is the source code for com.gmail.emerssso.srbase.ListDailiesActivity.java

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//This Software is distributed under The Apache License, Version 2.0
//The License is available at http://www.apache.org/licenses/LICENSE-2.0
package com.gmail.emerssso.srbase;

import android.app.ActionBar;
import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

import com.gmail.emerssso.srbase.database.DailyTable;
import com.gmail.emerssso.srbase.database.SRContentProvider;

/**
 * The ListDailiesActivity class implements an activity which
 * lists all of the Daily Logs' comments associated with a particular
 * SR (passed as an extra to the activity).  These can be clicked to open
 * and edit that Daily in the EditDailyActivity.
 *
 * @author Conner Kasten
 */
public class ListDailiesActivity extends ListSubItemsActivity implements LoaderManager.LoaderCallbacks<Cursor> {

    /**
     * The adapter for the cursor to access the data.
     */
    private SimpleCursorAdapter adapter;

    /**
     * The ID of the target SR.
     */
    private String srId;

    /* (non-Javadoc)
     * @see android.app.Activity#onCreate(android.os.Bundle)
     */
    @Override
    public void onCreate(Bundle bundle) {
        super.onCreate(bundle);
        setContentView(R.layout.list_comments_activity);

        ActionBar actionBar = getActionBar();
        if (actionBar != null)
            actionBar.setDisplayHomeAsUpEnabled(true);

        ListView lv = this.getListView();
        lv.setDividerHeight(2);

        Bundle extras = getIntent().getExtras();

        srId = extras.getString(DailyTable.COLUMN_SR_ID);

        fillData();

        lv.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                Intent i = new Intent(parent.getContext(), EditDailyActivity.class);
                Uri dayUri = Uri.parse(SRContentProvider.DAILY_CONTENT_URI + "/" + id);
                i.putExtra(SRContentProvider.DAILY_CONTENT_ITEM_TYPE, dayUri);
                startActivity(i);
            }
        });
    }

    /* (non-Javadoc)
     * @see android.app.Activity#onCreateOptionsMenu(android.view.Menu)
     */
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.sr_list_menu, menu);
        return super.onCreateOptionsMenu(menu);
    }

    /* (non-Javadoc)
     * @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem)
     */
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.new_sr:
            Intent i = new Intent(this, EditDailyActivity.class);
            i.putExtra(DailyTable.COLUMN_SR_ID, srId);
            startActivity(i);
            return true;
        case android.R.id.home:
            NavUtils.navigateUpFromSameTask(this);
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    /**
     * Fill data from the database into the ListView.
     */
    private void fillData() {
        // Fields from the database (projection)
        // Must include the _id column for the adapter to work
        String[] from = new String[] { DailyTable.COLUMN_DAY, DailyTable.COLUMN_MONTH, DailyTable.COLUMN_YEAR,
                DailyTable.COLUMN_COMMENT, DailyTable.COLUMN_ID };
        // Fields on the UI to which we map
        int[] to = new int[] { R.id.day, R.id.month, R.id.year, R.id.comment_body };

        //create cursor so that we only list relevant comments
        Cursor cursor = getContentResolver().query(SRContentProvider.DAILY_CONTENT_URI, from,
                DailyTable.COLUMN_SR_ID + " = ? ", new String[] { srId }, null);

        adapter = new SimpleCursorAdapter(this, R.layout.list_comment_row, cursor, from, to, 0);

        setListAdapter(adapter);
        getLoaderManager().initLoader(0, null, this);
    }

    /* (non-Javadoc)
     * @see android.app.LoaderManager.LoaderCallbacks#onCreateLoader(int, android.os.Bundle)
     */
    @Override
    public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
        String[] projection = { DailyTable.COLUMN_ID, DailyTable.COLUMN_DAY, DailyTable.COLUMN_MONTH,
                DailyTable.COLUMN_YEAR, DailyTable.COLUMN_COMMENT };
        return new CursorLoader(this, SRContentProvider.DAILY_CONTENT_URI, projection,
                DailyTable.COLUMN_SR_ID + " = ? ", new String[] { srId }, null);
    }

    /* (non-Javadoc)
     * @see android.app.LoaderManager.LoaderCallbacks#onLoadFinished(android.content.Loader, java.lang.Object)
     */
    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        adapter.swapCursor(data);
    }

    /* (non-Javadoc)
     * @see android.app.LoaderManager.LoaderCallbacks#onLoaderReset(android.content.Loader)
     */
    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        adapter.swapCursor(null);
    }

    @Override
    protected Intent createIntentForParent() {
        Intent i = new Intent(this, ViewSRActivity.class);
        Uri todoUri = Uri.parse(SRContentProvider.SR_CONTENT_URI + "/" + srId);
        i.putExtra(SRContentProvider.SR_CONTENT_ITEM_TYPE, todoUri);
        return i;
    }
}