com.github.tdudziak.gps_lock_lock.ControlActivity.java Source code

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Here is the source code for com.github.tdudziak.gps_lock_lock.ControlActivity.java

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/*
 *  This file is a part of GPS Lock-Lock Android application.
 *  Copyright (C) 2011 Tomasz Dudziak
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.github.tdudziak.gps_lock_lock;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.view.View;
import android.support.v4.content.LocalBroadcastManager;
import android.text.Html;

public class ControlActivity extends Activity implements OnItemClickListener {
    private TextView mTextStatus;
    private ProgressBar mProgressStatus;
    private BroadcastReceiver mUiUpdateBroadcastReceiver;

    private ListView mListMenu;
    private MenuAdapter mMenuAdapter;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mTextStatus = (TextView) findViewById(R.id.textStatus);
        mProgressStatus = (ProgressBar) findViewById(R.id.progressStatus);

        // setup the menu ListView
        mListMenu = (ListView) findViewById(R.id.listMenu);
        mMenuAdapter = new MenuAdapter(this, R.menu.menu);
        mListMenu.setAdapter(mMenuAdapter);
        mListMenu.setOnItemClickListener(this);

        mUiUpdateBroadcastReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                int left = intent.getIntExtra(LockService.EXTRA_TIME_LEFT, -1);
                assert left != -1;

                setStatus(left);

                if (left <= 0) {
                    // This is the last message; no time left. Shutdown.
                    finish();
                }
            }
        };
    }

    @Override
    protected void onPause() {
        LocalBroadcastManager.getInstance(this).unregisterReceiver(mUiUpdateBroadcastReceiver);
        super.onPause();
    }

    @Override
    protected void onResume() {
        LocalBroadcastManager bm = LocalBroadcastManager.getInstance(this);
        IntentFilter filter = new IntentFilter(LockService.ACTION_UI_UPDATE);
        bm.registerReceiver(mUiUpdateBroadcastReceiver, filter);

        // request UI update broadcast from the service
        Intent intent = new Intent(LockService.ACTION_UI_UPDATE);
        intent.setClass(this, LockService.class);
        startService(intent);
        setStatus(0);

        // if service is already running we can update status text immediately
        LockService service = ((LockApplication) getApplication()).getLockService();
        if (service != null) {
            setStatus(service.getRemainingTime());
        }

        // update text on "Restart" list item
        String format = getResources().getString(R.string.menu_restart);
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
        int lock_time = prefs.getInt("lockTime", 5);
        mMenuAdapter.getItemById(R.id.menuItemRestart).title = String.format(format, lock_time);
        mMenuAdapter.notifyDataSetChanged();

        super.onResume();
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Intent intent;

        switch ((int) id) {
        case R.id.menuItemSettings:
            intent = new Intent(this, AppPreferenceActivity.class);
            startActivityForResult(intent, 0);
            break;

        case R.id.menuItemHelp:
            intent = new Intent(this, AboutActivity.class);
            startActivityForResult(intent, 0);
            break;

        case R.id.menuItemRestart:
            intent = new Intent(LockService.ACTION_RESTART);
            intent.setClass(this, LockService.class);
            startService(intent);
            break;

        case R.id.menuItemStop:
            intent = new Intent(LockService.ACTION_SHUTDOWN);
            intent.setClass(this, LockService.class);
            startService(intent);
            break;
        }
    }

    private void setStatus(int minutes) {
        if (minutes == 0) {
            mTextStatus.setText("");
            mProgressStatus.setVisibility(View.VISIBLE);
        } else {
            String s_format = getResources().getString(R.string.text_status);
            String text = String.format(s_format, minutes);
            mTextStatus.setText(Html.fromHtml(text));
            mProgressStatus.setVisibility(View.INVISIBLE);
        }
    }
}