com.pedometrak.ui.ActivityMain.java Source code

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Here is the source code for com.pedometrak.ui.ActivityMain.java

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/*
 * Copyright 2013 Thomas Hoffmann
 * 
 * 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.pedometrak.ui;

import android.app.AlertDialog;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.text.method.LinkMovementMethod;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;

import com.pedometrak.LocalDatabaseManager;
import com.pedometrak.PedometerManager;
import com.pedometrak.R;
import com.pedometrak.data.SessionData;
import com.pedometrak.network.JsonRequestCallback;
import com.pedometrak.network.ServerConnector;
import com.pedometrak.util.Logger;
import org.json.JSONObject;

import java.util.List;

public class ActivityMain extends FragmentActivity {

    private SessionData mSession;

    @Override
    protected void onCreate(final Bundle b) {
        super.onCreate(b);

        if (b == null) {
            // Create new fragment and transaction
            Fragment newFragment = new FragmentOverviewController();
            FragmentTransaction transaction = getFragmentManager().beginTransaction();

            // Replace whatever is in the fragment_container view with this
            // fragment,
            // and add the transaction to the back stack
            transaction.replace(android.R.id.content, newFragment);

            // Commit the transaction
            transaction.commit();
        }

        Logger.log("Unsaved sessions: " + LocalDatabaseManager.getInstance(this).getUnsynchedSessions().size());
    }

    @Override
    public void onBackPressed() {
        if (getFragmentManager().getBackStackEntryCount() > 0) {
            getFragmentManager().popBackStackImmediate();
        } else {
            stopService(new Intent(this, PedometerManager.class));
            finish();
        }
    }

    public void openWorkoutFragment(View v) {
        startService(new Intent(this, PedometerManager.class));
        getFragmentManager().beginTransaction()
                .replace(android.R.id.content, new FragmentWorkoutViewController(), "WORKOUT_FRAGMENT")
                .addToBackStack(null).commit();
    }

    public void closeWorkoutFragment(View v) {
        // Save the current session
        saveSession(mSession);
        // Remove the session data
        mSession = null;

        stopService(new Intent(this, PedometerManager.class));
        getFragmentManager().popBackStackImmediate();
    }

    public boolean handleItemSelected(final MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            getFragmentManager().popBackStackImmediate();
            break;
        case R.id.action_settings:
            getFragmentManager().beginTransaction().replace(android.R.id.content, new FragmentSettings())
                    .addToBackStack(null).commit();
            break;
        case R.id.action_about:
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle(R.string.about);
            TextView tv = new TextView(this);
            tv.setPadding(30, 30, 30, 30);
            tv.setText(R.string.about_text_links);

            try {
                tv.append(getString(R.string.about_app_version,
                        getPackageManager().getPackageInfo(getPackageName(), 0).versionName));
            } catch (NameNotFoundException e1) {
                // should not happen as the app is definitely installed when
                // seeing the dialog
                e1.printStackTrace();
            }
            tv.setMovementMethod(LinkMovementMethod.getInstance());
            builder.setView(tv);
            builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(final DialogInterface dialog, int which) {
                    dialog.dismiss();
                }
            });
            builder.create().show();
            break;
        }
        return true;
    }

    public void newSession() {
        // Create a new session
        mSession = new SessionData();
        mSession.start = System.currentTimeMillis();
        mSession.end = System.currentTimeMillis();
    }

    public SessionData getSession() {
        return mSession;
    }

    private void saveSession(SessionData session) {
        LocalDatabaseManager.getInstance(this).insertSession(session.start, session.end, session.steps,
                session.distance, session.calories);
        // Upload unsynced sessions to the server
        saveUnsynchedSessions();
    }

    /**
     * Commits session data to the local database and send it to the server.
     */
    private void saveUnsynchedSessions() {
        final LocalDatabaseManager db = LocalDatabaseManager.getInstance(this);
        List<SessionData> data = db.getUnsynchedSessions();
        for (final SessionData session : data) {
            ServerConnector.getInstance(this).sendSession(session.start, session.end, session.steps,
                    session.distance, session.calories, new JsonRequestCallback() {
                        @Override
                        public void onSuccess(JSONObject response) {
                            db.setSyncFlag(session.start);
                            Logger.log(session.start + " session saved!");
                        }

                        @Override
                        public void onError() {
                        }
                    });
        }
    }
}