Android Open Source - opscal Schedule Activity

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License

The source code is released under:

Copyright (c) 2013 by Philip Nelson Some rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are me...

Java Source Code

package ca.pnelson.opscal;
/*w ww.  j ava 2  s .  c om*/
import java.util.GregorianCalendar;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.content.SharedPreferences;
import android.gesture.GestureOverlayView;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class ScheduleActivity extends Activity implements OnTouchListener
{
  private int mTeam;
  private int mYear;
  private int mMonth;

  private String[] mMonthArray;
  private String[] mTeamArray;
  private String[] mWeekdayArray;

  private Resources mResources;
  private SharedPreferences mConfig;
  private GestureDetector mGesture;
  private ScheduleAdapter mAdapter;

  private TextView mDate;
  private GridView mGrid;

  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    GregorianCalendar now = new GregorianCalendar();

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    mResources = getResources();
    mConfig = PreferenceManager.getDefaultSharedPreferences(this);

    // convert team preference from a value from A-D to a value from 0-3
    mTeam = Character.getNumericValue(
      mConfig.getString("team", "A").charAt(0)) - 10;
    mYear = now.get(GregorianCalendar.YEAR);
    mMonth = now.get(GregorianCalendar.MONTH);

    mMonthArray = mResources.getStringArray(R.array.months);
    mTeamArray = mResources.getStringArray(R.array.teams);
    mWeekdayArray = mResources.getStringArray(R.array.weekdays);

    mGesture = new GestureDetector(new SwipeGesture(this));
    mAdapter = new ScheduleAdapter(this);

    mDate = (TextView)findViewById(R.id.current);
    mGrid = (GridView)findViewById(R.id.grid);
    mGrid.setOnTouchListener(this);

    updateViews();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu)
  {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item)
  {
    switch (item.getItemId())
    {
    case R.id.settings:
      startActivity(new Intent(this, SettingsActivity.class));
      break;
    
    case R.id.about:
      startActivity(new Intent(this, AboutActivity.class));
      break;
    
    case R.id.exit:
      finish();
      break;
    
    default:
      return false;
    }

    return true;
  }

  @Override
  public boolean onTouch(View view, MotionEvent event)
  {
    if (mGesture.onTouchEvent(event))
      return true;
    
    return false;
  }

  public void prevMonth()
  {
    if (--mMonth < 0)
    {
      mMonth = 11;
      mYear--;
    }

    updateViews();
  }

  public void nextMonth()
  {
    if (++mMonth > 11)
    {
      mMonth = 0;
      mYear++;
    }

    updateViews();
  }

  public int getTeam()
  {
    return mTeam;
  }

  public int getYear()
  {
    return mYear;
  }
  
  public int getMonth()
  {
    return mMonth;
  }

  private void updateViews()
  {
    mAdapter.update();

    mGrid.setAdapter(mAdapter);
    mDate.setText(
      mMonthArray[mMonth]
      + ", "
      + mYear
      + " ("
      + mTeamArray[mTeam]
      + ")"
    );
  }

  private class SwipeGesture extends SimpleOnGestureListener
  {
    private ScheduleActivity mContext;

    public SwipeGesture(ScheduleActivity context)
    {
      super();
      mContext = context;
    }

    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
    {
      float deltaX = e1.getX() - e2.getX();
      float deltaY = Math.abs(e1.getY() - e2.getY());

      // not long or straight enough
      if (Math.abs(deltaX) < 150 || deltaY > 100)
        return false;
      
      // view prev or next month
      if (deltaX < 0)
        mContext.prevMonth();
      else
        mContext.nextMonth();

      return true;
    }
  }
}

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