src/com/android/calendar/MonthActivity.java - platform/packages/apps/Calendar - Git at Google

 /*
  * Copyright (C) 2006 The Android Open Source Project
  *
  * 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.android.calendar;

 import static android.provider.Calendar.EVENT_BEGIN_TIME;
 import dalvik.system.VMRuntime;

 import android.app.Activity;
 import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.database.ContentObserver;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.provider.Calendar.Events;
 import android.text.format.DateUtils;
 import android.text.format.Time;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
 import android.view.animation.Animation.AnimationListener;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.ViewSwitcher;
 import android.widget.Gallery.LayoutParams;

 import java.util.Calendar;

 public class MonthActivity extends Activity implements ViewSwitcher.ViewFactory,
         Navigator, AnimationListener {
     private static final int INITIAL_HEAP_SIZE = 4 * 1024 * 1024;
     private Animation mInAnimationPast;
     private Animation mInAnimationFuture;
     private Animation mOutAnimationPast;
     private Animation mOutAnimationFuture;
     private ViewSwitcher mSwitcher;
     private Time mTime;

     private ContentResolver mContentResolver;
     EventLoader mEventLoader;
     private int mStartDay;

     private ProgressBar mProgressBar;

     protected void startProgressSpinner() {
         // start the progress spinner
         mProgressBar.setVisibility(View.VISIBLE);
     }

     protected void stopProgressSpinner() {
         // stop the progress spinner
         mProgressBar.setVisibility(View.GONE);
     }

     /* ViewSwitcher.ViewFactory interface methods */
     public View makeView() {
         MonthView mv = new MonthView(this, this);
         mv.setLayoutParams(new ViewSwitcher.LayoutParams(
                 LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
         mv.setSelectedTime(mTime);
         return mv;
     }

     /* Navigator interface methods */
     public void goTo(Time time) {
         TextView title = (TextView) findViewById(R.id.title);
         title.setText(Utils.formatMonthYear(time));

         MonthView current = (MonthView) mSwitcher.getCurrentView();
         current.dismissPopup();

         Time currentTime = current.getTime();

         // Compute a month number that is monotonically increasing for any
         // two adjacent months.
         // This is faster than calling getSelectedTime() because we avoid
         // a call to Time#normalize().
         int currentMonth = currentTime.month + currentTime.year * 12;
         int nextMonth = time.month + time.year * 12;
         if (nextMonth < currentMonth) {
             mSwitcher.setInAnimation(mInAnimationPast);
             mSwitcher.setOutAnimation(mOutAnimationPast);
         } else {
             mSwitcher.setInAnimation(mInAnimationFuture);
             mSwitcher.setOutAnimation(mOutAnimationFuture);
         }

         MonthView next = (MonthView) mSwitcher.getNextView();
         next.setSelectionMode(current.getSelectionMode());
         next.setSelectedTime(time);
         next.reloadEvents();
         next.animationStarted();
         mSwitcher.showNext();
         next.requestFocus();
         mTime = time;
     }

     public void goToToday() {
         Time now = new Time();
         now.set(System.currentTimeMillis());

         TextView title = (TextView) findViewById(R.id.title);
         title.setText(Utils.formatMonthYear(now));
         mTime = now;

         MonthView view = (MonthView) mSwitcher.getCurrentView();
         view.setSelectedTime(now);
         view.reloadEvents();
     }

     public long getSelectedTime() {
         MonthView mv = (MonthView) mSwitcher.getCurrentView();
         return mv.getSelectedTimeInMillis();
     }

     public boolean getAllDay() {
         return false;
     }

     int getStartDay() {
         return mStartDay;
     }

     void eventsChanged() {
         MonthView view = (MonthView) mSwitcher.getCurrentView();
         view.reloadEvents();
     }

     /**
      * Listens for intent broadcasts
      */
     private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             String action = intent.getAction();
             if (action.equals(Intent.ACTION_TIME_CHANGED)
                     || action.equals(Intent.ACTION_DATE_CHANGED)
                     || action.equals(Intent.ACTION_TIMEZONE_CHANGED)) {
                 eventsChanged();
             }
         }
     };

     // Create an observer so that we can update the views whenever a
     // Calendar event changes.
     private ContentObserver mObserver = new ContentObserver(new Handler())
     {
         @Override
         public boolean deliverSelfNotifications() {
             return true;
         }

         @Override
         public void onChange(boolean selfChange) {
             eventsChanged();
         }
     };

     public void onAnimationStart(Animation animation) {
     }

     // Notifies the MonthView when an animation has finished.
     public void onAnimationEnd(Animation animation) {
         MonthView monthView = (MonthView) mSwitcher.getCurrentView();
         monthView.animationFinished();
     }

     public void onAnimationRepeat(Animation animation) {
     }

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

         // Eliminate extra GCs during startup by setting the initial heap size to 4MB.
         // TODO: We should restore the old heap size once the activity reaches the idle state
         long oldHeapSize = VMRuntime.getRuntime().setMinimumHeapSize(INITIAL_HEAP_SIZE);

         setContentView(R.layout.month_activity);
         mContentResolver = getContentResolver();

         long time;
         if (icicle != null) {
             time = icicle.getLong(EVENT_BEGIN_TIME);
         } else {
             time = Utils.timeFromIntentInMillis(getIntent());
         }

         mTime = new Time();
         mTime.set(time);
         mTime.normalize(true);

         // Get first day of week based on locale and populate the day headers
         mStartDay = Calendar.getInstance().getFirstDayOfWeek();
         int diff = mStartDay - Calendar.SUNDAY - 1;

         String dayString = DateUtils.getDayOfWeekString((Calendar.SUNDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day0)).setText(dayString);
         dayString = DateUtils.getDayOfWeekString((Calendar.MONDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day1)).setText(dayString);
         dayString = DateUtils.getDayOfWeekString((Calendar.TUESDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day2)).setText(dayString);
         dayString = DateUtils.getDayOfWeekString((Calendar.WEDNESDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day3)).setText(dayString);
         dayString = DateUtils.getDayOfWeekString((Calendar.THURSDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day4)).setText(dayString);
         dayString = DateUtils.getDayOfWeekString((Calendar.FRIDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day5)).setText(dayString);
         dayString = DateUtils.getDayOfWeekString((Calendar.SATURDAY + diff) % 7 + 1,
                 DateUtils.LENGTH_MEDIUM);
         ((TextView) findViewById(R.id.day6)).setText(dayString);

         // Set the initial title
         TextView title = (TextView) findViewById(R.id.title);
         title.setText(Utils.formatMonthYear(mTime));

         mEventLoader = new EventLoader(this);
         mProgressBar = (ProgressBar) findViewById(R.id.progress_circular);

         mSwitcher = (ViewSwitcher) findViewById(R.id.switcher);
         mSwitcher.setFactory(this);
         mSwitcher.getCurrentView().requestFocus();

         mInAnimationPast = AnimationUtils.loadAnimation(this, R.anim.slide_down_in);
         mOutAnimationPast = AnimationUtils.loadAnimation(this, R.anim.slide_down_out);
         mInAnimationFuture = AnimationUtils.loadAnimation(this, R.anim.slide_up_in);
         mOutAnimationFuture = AnimationUtils.loadAnimation(this, R.anim.slide_up_out);

         mInAnimationPast.setAnimationListener(this);
         mInAnimationFuture.setAnimationListener(this);
     }

     @Override
     protected void onPause() {
         super.onPause();
         if (isFinishing()) {
             mEventLoader.stopBackgroundThread();
         }
         mContentResolver.unregisterContentObserver(mObserver);
         unregisterReceiver(mIntentReceiver);

         MonthView view = (MonthView) mSwitcher.getCurrentView();
         view.dismissPopup();
         view = (MonthView) mSwitcher.getNextView();
         view.dismissPopup();
         mEventLoader.stopBackgroundThread();
     }

     @Override
     protected void onResume() {
         super.onResume();
         mEventLoader.startBackgroundThread();
         eventsChanged();

         MonthView view1 = (MonthView) mSwitcher.getCurrentView();
         MonthView view2 = (MonthView) mSwitcher.getNextView();
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
         String str = prefs.getString(CalendarPreferenceActivity.KEY_DETAILED_VIEW,
                 CalendarPreferenceActivity.DEFAULT_DETAILED_VIEW);
         view1.setDetailedView(str);
         view2.setDetailedView(str);

         // Record Month View as the (new) start view
         String activityString = CalendarApplication.ACTIVITY_NAMES[CalendarApplication.MONTH_VIEW_ID];
         SharedPreferences.Editor editor = prefs.edit();
         editor.putString(CalendarPreferenceActivity.KEY_START_VIEW, activityString);
         editor.commit();

         // Register for Intent broadcasts
         IntentFilter filter = new IntentFilter();

         filter.addAction(Intent.ACTION_TIME_CHANGED);
         filter.addAction(Intent.ACTION_DATE_CHANGED);
         filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
         registerReceiver(mIntentReceiver, filter);

         mContentResolver.registerContentObserver(Events.CONTENT_URI,
                 true, mObserver);
     }

     @Override
     protected void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
         outState.putLong(EVENT_BEGIN_TIME, mTime.toMillis(true));
     }

     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         switch (keyCode) {
             case KeyEvent.KEYCODE_BACK:
                 finish();
                 return true;
         }
         return super.onKeyDown(keyCode, event);
     }

     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         MenuHelper.onPrepareOptionsMenu(this, menu);
         return super.onPrepareOptionsMenu(menu);
     }

     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuHelper.onCreateOptionsMenu(menu);
         return super.onCreateOptionsMenu(menu);
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         MenuHelper.onOptionsItemSelected(this, item, this);
         return super.onOptionsItemSelected(item);
     }
 }
	/*
	* Copyright (C) 2006 The Android Open Source Project
	*
	* 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.android.calendar;

	import static android.provider.Calendar.EVENT_BEGIN_TIME;
	import dalvik.system.VMRuntime;

	import android.app.Activity;
	import android.content.BroadcastReceiver;
	import android.content.ContentResolver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.SharedPreferences;
	import android.database.ContentObserver;
	import android.os.Bundle;
	import android.os.Handler;
	import android.preference.PreferenceManager;
	import android.provider.Calendar.Events;
	import android.text.format.DateUtils;
	import android.text.format.Time;
	import android.view.KeyEvent;
	import android.view.Menu;
	import android.view.MenuItem;
	import android.view.View;
	import android.view.animation.Animation;
	import android.view.animation.AnimationUtils;
	import android.view.animation.Animation.AnimationListener;
	import android.widget.ProgressBar;
	import android.widget.TextView;
	import android.widget.ViewSwitcher;
	import android.widget.Gallery.LayoutParams;

	import java.util.Calendar;

	public class MonthActivity extends Activity implements ViewSwitcher.ViewFactory,
	Navigator, AnimationListener {
	private static final int INITIAL_HEAP_SIZE = 4 * 1024 * 1024;
	private Animation mInAnimationPast;
	private Animation mInAnimationFuture;
	private Animation mOutAnimationPast;
	private Animation mOutAnimationFuture;
	private ViewSwitcher mSwitcher;
	private Time mTime;

	private ContentResolver mContentResolver;
	EventLoader mEventLoader;
	private int mStartDay;

	private ProgressBar mProgressBar;

	protected void startProgressSpinner() {
	// start the progress spinner
	mProgressBar.setVisibility(View.VISIBLE);
	}

	protected void stopProgressSpinner() {
	// stop the progress spinner
	mProgressBar.setVisibility(View.GONE);
	}

	/* ViewSwitcher.ViewFactory interface methods */
	public View makeView() {
	MonthView mv = new MonthView(this, this);
	mv.setLayoutParams(new ViewSwitcher.LayoutParams(
	LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
	mv.setSelectedTime(mTime);
	return mv;
	}

	/* Navigator interface methods */
	public void goTo(Time time) {
	TextView title = (TextView) findViewById(R.id.title);
	title.setText(Utils.formatMonthYear(time));

	MonthView current = (MonthView) mSwitcher.getCurrentView();
	current.dismissPopup();

	Time currentTime = current.getTime();

	// Compute a month number that is monotonically increasing for any
	// two adjacent months.
	// This is faster than calling getSelectedTime() because we avoid
	// a call to Time#normalize().
	int currentMonth = currentTime.month + currentTime.year * 12;
	int nextMonth = time.month + time.year * 12;
	if (nextMonth < currentMonth) {
	mSwitcher.setInAnimation(mInAnimationPast);
	mSwitcher.setOutAnimation(mOutAnimationPast);
	} else {
	mSwitcher.setInAnimation(mInAnimationFuture);
	mSwitcher.setOutAnimation(mOutAnimationFuture);
	}

	MonthView next = (MonthView) mSwitcher.getNextView();
	next.setSelectionMode(current.getSelectionMode());
	next.setSelectedTime(time);
	next.reloadEvents();
	next.animationStarted();
	mSwitcher.showNext();
	next.requestFocus();
	mTime = time;
	}

	public void goToToday() {
	Time now = new Time();
	now.set(System.currentTimeMillis());

	TextView title = (TextView) findViewById(R.id.title);
	title.setText(Utils.formatMonthYear(now));
	mTime = now;

	MonthView view = (MonthView) mSwitcher.getCurrentView();
	view.setSelectedTime(now);
	view.reloadEvents();
	}

	public long getSelectedTime() {
	MonthView mv = (MonthView) mSwitcher.getCurrentView();
	return mv.getSelectedTimeInMillis();
	}

	public boolean getAllDay() {
	return false;
	}

	int getStartDay() {
	return mStartDay;
	}

	void eventsChanged() {
	MonthView view = (MonthView) mSwitcher.getCurrentView();
	view.reloadEvents();
	}

	/**
	* Listens for intent broadcasts
	*/
	private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	String action = intent.getAction();
	if (action.equals(Intent.ACTION_TIME_CHANGED)
	\|\| action.equals(Intent.ACTION_DATE_CHANGED)
	\|\| action.equals(Intent.ACTION_TIMEZONE_CHANGED)) {
	eventsChanged();
	}
	}
	};

	// Create an observer so that we can update the views whenever a
	// Calendar event changes.
	private ContentObserver mObserver = new ContentObserver(new Handler())
	{
	@Override
	public boolean deliverSelfNotifications() {
	return true;
	}

	@Override
	public void onChange(boolean selfChange) {
	eventsChanged();
	}
	};

	public void onAnimationStart(Animation animation) {
	}

	// Notifies the MonthView when an animation has finished.
	public void onAnimationEnd(Animation animation) {
	MonthView monthView = (MonthView) mSwitcher.getCurrentView();
	monthView.animationFinished();
	}

	public void onAnimationRepeat(Animation animation) {
	}

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

	// Eliminate extra GCs during startup by setting the initial heap size to 4MB.
	// TODO: We should restore the old heap size once the activity reaches the idle state
	long oldHeapSize = VMRuntime.getRuntime().setMinimumHeapSize(INITIAL_HEAP_SIZE);

	setContentView(R.layout.month_activity);
	mContentResolver = getContentResolver();

	long time;
	if (icicle != null) {
	time = icicle.getLong(EVENT_BEGIN_TIME);
	} else {
	time = Utils.timeFromIntentInMillis(getIntent());
	}

	mTime = new Time();
	mTime.set(time);
	mTime.normalize(true);

	// Get first day of week based on locale and populate the day headers
	mStartDay = Calendar.getInstance().getFirstDayOfWeek();
	int diff = mStartDay - Calendar.SUNDAY - 1;

	String dayString = DateUtils.getDayOfWeekString((Calendar.SUNDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day0)).setText(dayString);
	dayString = DateUtils.getDayOfWeekString((Calendar.MONDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day1)).setText(dayString);
	dayString = DateUtils.getDayOfWeekString((Calendar.TUESDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day2)).setText(dayString);
	dayString = DateUtils.getDayOfWeekString((Calendar.WEDNESDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day3)).setText(dayString);
	dayString = DateUtils.getDayOfWeekString((Calendar.THURSDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day4)).setText(dayString);
	dayString = DateUtils.getDayOfWeekString((Calendar.FRIDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day5)).setText(dayString);
	dayString = DateUtils.getDayOfWeekString((Calendar.SATURDAY + diff) % 7 + 1,
	DateUtils.LENGTH_MEDIUM);
	((TextView) findViewById(R.id.day6)).setText(dayString);

	// Set the initial title
	TextView title = (TextView) findViewById(R.id.title);
	title.setText(Utils.formatMonthYear(mTime));

	mEventLoader = new EventLoader(this);
	mProgressBar = (ProgressBar) findViewById(R.id.progress_circular);

	mSwitcher = (ViewSwitcher) findViewById(R.id.switcher);
	mSwitcher.setFactory(this);
	mSwitcher.getCurrentView().requestFocus();

	mInAnimationPast = AnimationUtils.loadAnimation(this, R.anim.slide_down_in);
	mOutAnimationPast = AnimationUtils.loadAnimation(this, R.anim.slide_down_out);
	mInAnimationFuture = AnimationUtils.loadAnimation(this, R.anim.slide_up_in);
	mOutAnimationFuture = AnimationUtils.loadAnimation(this, R.anim.slide_up_out);

	mInAnimationPast.setAnimationListener(this);
	mInAnimationFuture.setAnimationListener(this);
	}

	@Override
	protected void onPause() {
	super.onPause();
	if (isFinishing()) {
	mEventLoader.stopBackgroundThread();
	}
	mContentResolver.unregisterContentObserver(mObserver);
	unregisterReceiver(mIntentReceiver);

	MonthView view = (MonthView) mSwitcher.getCurrentView();
	view.dismissPopup();
	view = (MonthView) mSwitcher.getNextView();
	view.dismissPopup();
	mEventLoader.stopBackgroundThread();
	}

	@Override
	protected void onResume() {
	super.onResume();
	mEventLoader.startBackgroundThread();
	eventsChanged();

	MonthView view1 = (MonthView) mSwitcher.getCurrentView();
	MonthView view2 = (MonthView) mSwitcher.getNextView();
	SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
	String str = prefs.getString(CalendarPreferenceActivity.KEY_DETAILED_VIEW,
	CalendarPreferenceActivity.DEFAULT_DETAILED_VIEW);
	view1.setDetailedView(str);
	view2.setDetailedView(str);

	// Record Month View as the (new) start view
	String activityString = CalendarApplication.ACTIVITY_NAMES[CalendarApplication.MONTH_VIEW_ID];
	SharedPreferences.Editor editor = prefs.edit();
	editor.putString(CalendarPreferenceActivity.KEY_START_VIEW, activityString);
	editor.commit();

	// Register for Intent broadcasts
	IntentFilter filter = new IntentFilter();

	filter.addAction(Intent.ACTION_TIME_CHANGED);
	filter.addAction(Intent.ACTION_DATE_CHANGED);
	filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
	registerReceiver(mIntentReceiver, filter);

	mContentResolver.registerContentObserver(Events.CONTENT_URI,
	true, mObserver);
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);
	outState.putLong(EVENT_BEGIN_TIME, mTime.toMillis(true));
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
	switch (keyCode) {
	case KeyEvent.KEYCODE_BACK:
	finish();
	return true;
	}
	return super.onKeyDown(keyCode, event);
	}

	@Override
	public boolean onPrepareOptionsMenu(Menu menu) {
	MenuHelper.onPrepareOptionsMenu(this, menu);
	return super.onPrepareOptionsMenu(menu);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
	MenuHelper.onCreateOptionsMenu(menu);
	return super.onCreateOptionsMenu(menu);
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
	MenuHelper.onOptionsItemSelected(this, item, this);
	return super.onOptionsItemSelected(item);
	}
	}