Android Open Source - Swish Main Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) Shashank Kulkarni - Shashank.physics AT gmail DOT com
 *//from   w w w.  j  a  v  a 2s  .  c o  m
 * 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.codefupanda.app.swish;

import java.util.List;

import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.ActionBarActivity;
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.Button;
import android.widget.ListView;

import com.codefupanda.app.swish.adapter.CustomAdapter;
import com.codefupanda.app.swish.constant.Constants;
import com.codefupanda.app.swish.dao.BirthdayContactDao;
import com.codefupanda.app.swish.dao.Dao;
import com.codefupanda.app.swish.entity.Contact;
import com.codefupanda.app.swish.util.SMSUtil;

/**
 * The main activity. 
 * Launcher activity, the first screen displayed.
 *  
 * @author Shashank
 */
public class MainActivity extends ActionBarActivity implements
    OnItemClickListener {

  /** splash screen displayed on app opening. */
  private static final int WELCOME_SCREEN_LENGTH = 2000;
  
  /** Holds the view for displaying list of contacts. */
  private ListView mylistview;
  
  /** For saving and retrieving message text. */
  private Dao dao;
  
  /** Get people with birthday today. */
  private BirthdayContactDao birthdayContactDao;
  
  /** contacts cache */
  private List<Contact> contacts;

  /** The adapter. */
  private CustomAdapter customAdapter;
  
  /**
   * Called when activity created. Some init values.
   * 
   * Checks if application is run for first time,
   * if so starts {@link WelcomeActivity}  
   */
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    SharedPreferences prefs = getSharedPreferences("com.codefupanda.app.swish", MODE_PRIVATE);
    
    if (prefs.getBoolean("firstrun", true)) {
      Intent intent = new Intent(getApplicationContext(), WelcomeActivity.class);
      startActivity(intent);
      prefs.edit().putBoolean("firstrun", false).commit();
            finish();
        }
    
    setContentView(R.layout.activity_main);
    
    dao = new Dao();
    birthdayContactDao = new BirthdayContactDao(getApplicationContext());
    contacts = birthdayContactDao.getTodaysBirthdayContacts();
    
    mylistview = (ListView) findViewById(R.id.list);
    
    customAdapter = new CustomAdapter(MainActivity.this, contacts);
    mylistview.setAdapter(customAdapter);
    mylistview.setOnItemClickListener(MainActivity.this);
    
    Button swishButton = (Button) findViewById(R.id.swishButton);
    swishButton.setOnClickListener(new View.OnClickListener() {
      
      @Override
      public void onClick(View view) {
        SMSUtil.sendSms(getApplicationContext(), customAdapter.getCheckedContacts(), dao.getSmsText(getApplicationContext()));
        finish();
      }
    });
  }
  
  /**
   * Displays ListView after a delay.
   * 
   * Flash is disabled when main activity is called after the welcome screen.
   */
  @Override
  protected void onResume() {
    Bundle extras = getIntent().getExtras();
    
    if(extras != null && !extras.getBoolean(Constants.SHOW_FLASH)) {
      showHomeScreen();
    } else {
      new Handler().postDelayed(new Runnable() {
        public void run() {
          showHomeScreen();
        }
      }, WELCOME_SCREEN_LENGTH);
    }
    
    super.onResume();
  }

  /**
   * Makes list of contacts visible and logo invisible.
   */
  private void showHomeScreen() {
    findViewById(R.id.logo).setVisibility(View.INVISIBLE);
    if(contacts.size() > 0) {
      findViewById(R.id.swishButton).setVisibility(View.VISIBLE);
      mylistview.setVisibility(View.VISIBLE);
    } else {
      findViewById(R.id.noBdayToday).setVisibility(View.VISIBLE);
    }
  }
  
  /**
   * DO NOTHING!?
   */
  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position,
      long id) {
  }

  /**
   * Inflate menu.
   */
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu items for use in the action bar
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main_activity_actions, menu);
    return super.onCreateOptionsMenu(menu);
  }
  
  /**
   * On menu clicked.
   * 
   * If settings clicked, shows the setting screen.
   */
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle presses on the action bar items
      switch (item.getItemId()) {
      // open settings activity
          case R.id.action_settings:
            startActivity(new Intent(getApplicationContext(), SettingsActivity.class));
              return true;
          case R.id.action_help:
            startActivity(new Intent(getApplicationContext(), HelpActivity.class));
              return true;
          default:
              return super.onOptionsItemSelected(item);
      }
  }
}

Java Source Code List

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