Android Open Source - mvfa Main Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

/*
  Copyright (C) 2010 Ben Van Daele (vandaeleben@gmail.com)
//w ww. jav a 2  s  . c o  m
  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 be.benvd.mvforandroid;

import my.android.app.TabActivity;
import my.android.widget.TabHost;
import my.android.widget.TabHost.OnTabChangeListener;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.ComponentName;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.DialogInterface.OnClickListener;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.method.LinkMovementMethod;
import android.text.style.URLSpan;
import android.text.util.Linkify;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.EditText;
import android.widget.TextView;
import be.benvd.mvforandroid.data.MVDataService;

import com.commonsware.cwac.wakeful.WakefulIntentService;

public class MainActivity extends TabActivity
  {

  private static final String FIRST_TIME = "be.benvd.mvforandroid.FirstTime";
  private SharedPreferences prefs;

  @Override
  public void onCreate(Bundle savedInstanceState)
    {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    setContentView(R.layout.main);

    prefs = PreferenceManager.getDefaultSharedPreferences(this);
    if(prefs.getBoolean(FIRST_TIME, true))
      firstTimeInit();

    setupTabHost();
    }

  private void firstTimeInit()
    {
    Builder b = new Builder(this);
    b.setTitle(getString(R.string.login_title));
    View view = ((LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE)).inflate(R.layout.login_window, null);

    final EditText username = (EditText) view.findViewById(R.id.username);
    final EditText password = (EditText) view.findViewById(R.id.password);

    b.setView(view);
    b.setPositiveButton(getString(android.R.string.ok), new OnClickListener()
      {
        @Override
        public void onClick(DialogInterface dialog, int which)
          {
          saveCredentials(username.getText().toString(), password.getText().toString());

          Intent i = new Intent(MainActivity.this, MVDataService.class);
          i.setAction(MVDataService.SCHEDULE_SERVICE);
          WakefulIntentService.sendWakefulWork(MainActivity.this, i);

          prefs.edit().putBoolean(FIRST_TIME, false).commit();

          // Should have credentials now, let's force a
          // refresh of the credits overview. We can't just
          // broadcast
          // to the MVDataService, since we want visual
          // confirmation in CreditsActivity that the update
          // is in
          // progress, so we need to go through it.
          sendBroadcast(new Intent(CreditActivity.ACTION_REFRESH));
          }

        private void saveCredentials(String username, String password)
          {
          prefs.edit().putString("username", username).putString("password", password).commit();
          }
      });
    b.setCancelable(false);
    b.create().show();
    }

  @Override
  protected void onDestroy()
    {
    super.onDestroy();
    }

  @Override
  public boolean onCreateOptionsMenu(Menu menu)
    {
    new MenuInflater(this).inflate(R.menu.menu, menu);
    return super.onCreateOptionsMenu(menu);
    }

  @Override
  public boolean onOptionsItemSelected(MenuItem item)
    {
    switch(item.getItemId())
      {
      case R.id.settings:
        Intent intent = new Intent(this, SettingsActivity.class);
        startActivity(intent);
        return true;
      case R.id.about:
        showAboutDialog();
        return true;
      }

    return false;
    }

  private void showAboutDialog()
    {
    Builder builder = new Builder(this);
    builder.setIcon(android.R.drawable.ic_dialog_info);
    builder.setTitle(getString(R.string.about));
    builder.setMessage(getAboutMessage());
    builder.setPositiveButton(getString(android.R.string.ok), null);
    AlertDialog dialog = builder.create();
    dialog.show();
    allowClickableLinks(dialog);
    }

  private CharSequence getAboutMessage()
    {
    StringBuilder stringBuilder = new StringBuilder();
    stringBuilder.append(getString(R.string.app_name));
    stringBuilder.append(" ");
    stringBuilder.append(getVersionName());
    stringBuilder.append("\n\n");
    stringBuilder.append("http://github.com/benvd/mvfa\n");
    stringBuilder.append("@benvandaele\nvandaeleben@gmail.com\n\n");
    stringBuilder.append("http://github.com/fastlorenzo/mvfa\n");
    stringBuilder.append("zio@djzio.be\n");


    SpannableStringBuilder message = new SpannableStringBuilder(stringBuilder.toString());
    Linkify.addLinks(message, Linkify.EMAIL_ADDRESSES | Linkify.WEB_URLS);

    int twitterStart = stringBuilder.toString().indexOf("@benvandaele");
    int twitterEnd = twitterStart + "@benvandaele".length();
    message.setSpan(new URLSpan("http://twitter.com/benvandaele"), twitterStart, twitterEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

    return message;
    }

  private String getVersionName()
    {
    try
      {
      ComponentName componentName = new ComponentName(this, MainActivity.class);
      PackageInfo info = getPackageManager().getPackageInfo(componentName.getPackageName(), 0);
      return info.versionName;
      }
    catch(NameNotFoundException e)
      {
      // Won't happen, versionName is present in the manifest!
      return "";
      }
    }

  private void allowClickableLinks(AlertDialog dialog)
    {
    TextView message = (TextView) dialog.findViewById(android.R.id.message);
    message.setMovementMethod(LinkMovementMethod.getInstance());
    }

  private void setupTabHost()
    {
    TabHost tabHost = getTabHost();
    TabHost.TabSpec spec;
    Intent intent;
    View tabView;

    intent = new Intent().setClass(this, CreditActivity.class);
    tabView = getTabView(R.string.credit);
    spec = tabHost.newTabSpec("credit").setIndicator(tabView).setContent(intent);
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, UsageActivity.class);
    tabView = getTabView(R.string.usage);
    spec = tabHost.newTabSpec("usage").setIndicator(tabView).setContent(intent);
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, TopupsActivity.class);
    tabView = getTabView(R.string.topups);
    spec = tabHost.newTabSpec("topups").setIndicator(tabView).setContent(intent);
    tabHost.addTab(spec);

    tabHost.setOnTabChangedListener(new OnTabChangeListener()
      {
        @Override
        public void onTabChanged(String tabId)
          {
          MainActivity.this.setProgressBarIndeterminateVisibility(false);
          }
      });
    }

  private View getTabView(int stringId)
    {
    View view = getLayoutInflater().inflate(R.layout.tab_view, null, false);
    TextView text = (TextView) view.findViewById(R.id.tab_text);
    text.setText(stringId);
    return view;
    }

  }
Java Source Code List
