prebuilts/gradle/XYZTouristAttractions/Wearable/src/main/java/com/example/android/xyztouristattractions/ui/AttractionsGridPagerAdapter.java - platform/developers/build - Git at Google

 /*
  * Copyright 2015 Google Inc. All rights reserved.
  *
  * 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.example.android.xyztouristattractions.ui;

 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.support.wearable.activity.ConfirmationActivity;
 import android.support.wearable.view.CardFrame;
 import android.support.wearable.view.CardScrollView;
 import android.support.wearable.view.GridPagerAdapter;
 import android.support.wearable.view.GridViewPager;
 import android.support.wearable.view.WatchViewStub;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.TextView;

 import com.example.android.xyztouristattractions.R;
 import com.example.android.xyztouristattractions.common.Attraction;
 import com.example.android.xyztouristattractions.common.Constants;
 import com.example.android.xyztouristattractions.service.UtilityService;

 import java.util.ArrayList;

 /**
  * This adapter backs the main GridViewPager component found in
  * {@link com.example.android.xyztouristattractions.ui.AttractionsActivity}.
  */
 public class AttractionsGridPagerAdapter extends GridPagerAdapter
         implements GridViewPager.OnPageChangeListener {

     public static final int FADE_IN_TIME_MS = 250;
     public static final int FADE_OUT_TIME_MS = 500;
     private static final int GRID_COLUMN_COUNT = 5;
     private static final int FADE_OUT_DELAY_MS = 1500;
     private static final int PAGER_PRIMARY_IMAGE_COLUMN = 0;
     private static final int PAGER_SECONDARY_IMAGE_COLUMN = 1;
     private static final int PAGER_DESCRIPTION_COLUMN = 2;
     private static final int PAGER_NAVIGATE_ACTION_COLUMN = 3;
     private static final int PAGER_OPEN_ACTION_COLUMN = 4;

     private Context mContext;
     private LayoutInflater mLayoutInflater;
     private ArrayList<Attraction> mAttractions;
     private Rect mInsets = new Rect();
     private DelayedHide mDelayedHide = new DelayedHide();
     private OnChromeFadeListener mOnChromeFadeListener;

     public AttractionsGridPagerAdapter(
             Context context, ArrayList<Attraction> attractions) {
         super();
         mContext = context;
         mLayoutInflater = LayoutInflater.from(context);
         mAttractions = attractions;
     }

     public void setData(ArrayList<Attraction> attractions) {
         mAttractions = attractions;
     }

     public void setInsets(Rect insets) {
         mInsets = insets;
     }

     @Override
     public int getRowCount() {
         return (mAttractions != null && mAttractions.size() > 0) ? mAttractions.size() : 1;
     }

     @Override
     public int getColumnCount(int i) {
         return GRID_COLUMN_COUNT;
     }

     @Override
     protected Object instantiateItem(ViewGroup container, int row, final int column) {
         if (mAttractions != null && mAttractions.size() > 0) {
             final Attraction attraction = mAttractions.get(row);
             switch (column) {
                 case PAGER_PRIMARY_IMAGE_COLUMN:
                 case PAGER_SECONDARY_IMAGE_COLUMN:
                     // Two pages of full screen images, one with the attraction name
                     // and one with the distance to the attraction
                     final View view = mLayoutInflater.inflate(
                             R.layout.gridpager_fullscreen_image, container, false);
                     ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
                     TextView textView = (TextView) view.findViewById(R.id.textView);
                     FrameLayout overlayTextLayout =
                             (FrameLayout) view.findViewById(R.id.overlaytext);

                     mDelayedHide.add(overlayTextLayout);
                     view.setOnClickListener(mDelayedHide);

                     FrameLayout.LayoutParams params =
                             (FrameLayout.LayoutParams) textView.getLayoutParams();
                     params.bottomMargin = params.bottomMargin + mInsets.bottom;
                     params.leftMargin = mInsets.left;
                     params.rightMargin = mInsets.right;
                     textView.setLayoutParams(params);

                     if (column == PAGER_PRIMARY_IMAGE_COLUMN) {
                         imageView.setImageBitmap(attraction.image);
                         textView.setText(attraction.name);
                     } else {
                         imageView.setImageBitmap(attraction.secondaryImage);
                         if (TextUtils.isEmpty(attraction.distance)) {
                             overlayTextLayout.setVisibility(View.GONE);
                         } else {
                             textView.setText(mContext.getString(
                                     R.string.map_caption, attraction.distance));
                         }
                     }
                     container.addView(view);
                     return view;
                 case PAGER_DESCRIPTION_COLUMN:
                     // The description card page
                     CardScrollView cardScrollView = (CardScrollView) mLayoutInflater.inflate(
                             R.layout.gridpager_card, container, false);
                     TextView descTextView = (TextView) cardScrollView.findViewById(R.id.textView);
                     descTextView.setText(attraction.description);
                     cardScrollView.setCardGravity(Gravity.BOTTOM);
                     cardScrollView.setExpansionEnabled(true);
                     cardScrollView.setExpansionDirection(CardFrame.EXPAND_DOWN);
                     cardScrollView.setExpansionFactor(10);
                     container.addView(cardScrollView);
                     return cardScrollView;
                 case PAGER_NAVIGATE_ACTION_COLUMN:
                     // The navigate action
                     final WatchViewStub navStub = (WatchViewStub) mLayoutInflater.inflate(
                             R.layout.gridpager_action, container, false);

                     navStub.setOnClickListener(getStartActionClickListener(
                             attraction, Constants.START_NAVIGATION_PATH,
                             ConfirmationActivity.SUCCESS_ANIMATION));

                     navStub.setOnLayoutInflatedListener(
                             new WatchViewStub.OnLayoutInflatedListener() {
                         @Override
                         public void onLayoutInflated(WatchViewStub watchViewStub) {
                             ImageView imageView = (ImageView) navStub.findViewById(R.id.imageView);
                             imageView.setImageResource(R.drawable.ic_full_directions_walking);
                             TextView textView = (TextView) navStub.findViewById(R.id.textView);
                             textView.setText(R.string.action_navigate);
                         }
                     });

                     container.addView(navStub);
                     return navStub;
                 case PAGER_OPEN_ACTION_COLUMN:
                     // The "open on device" action
                     final WatchViewStub openStub = (WatchViewStub) mLayoutInflater.inflate(
                             R.layout.gridpager_action, container, false);

                     openStub.setOnClickListener(getStartActionClickListener(
                             attraction, Constants.START_ATTRACTION_PATH,
                             ConfirmationActivity.OPEN_ON_PHONE_ANIMATION));

                     openStub.setOnLayoutInflatedListener(
                             new WatchViewStub.OnLayoutInflatedListener() {
                         @Override
                         public void onLayoutInflated(WatchViewStub watchViewStub) {
                             ImageView imageView = (ImageView) openStub.findViewById(R.id.imageView);
                             imageView.setImageResource(R.drawable.ic_full_open_on_device);
                             TextView textView = (TextView) openStub.findViewById(R.id.textView);
                             textView.setText(R.string.action_open);
                         }
                     });

                     container.addView(openStub);
                     return openStub;
             }
         }
         return new View(mContext);
     }

     @Override
     public Drawable getBackgroundForPage(int row, int column) {
         if (column == 0) {
             return new ColorDrawable(0); // Empty black drawable
         }
         if (mAttractions.size() > 0 && mAttractions.get(row).image != null) {
             return new BitmapDrawable(mContext.getResources(), mAttractions.get(row).image);
         }
         return super.getBackgroundForPage(row, column);
     }

     @Override
     protected void destroyItem(ViewGroup viewGroup, int row, int column, Object object) {
         mDelayedHide.remove((View) object);
         viewGroup.removeView((View)object);
     }

     @Override
     public boolean isViewFromObject(View view, Object object) {
         return view == object;
     }

     @Override
     public void onPageScrolled(int posX, int posY, float posOffsetX, float posOffsetY,
                                int posOffsetPixelsX, int posOffsetPixelsY) {}

     @Override
     public void onPageSelected(int row, int col) {}

     @Override
     public void onPageScrollStateChanged(int state) {
         mDelayedHide.show();
     }

     /**
      * Use the Wear Message API to execute an action. Clears local and remote notifications and
      * also runs a confirmation animation before finishing the Wear activity.
      *
      * @param attraction The attraction to start the action on
      * @param pathName The Wear Message API pathname
      * @param confirmAnimationType The confirmation animation type from ConfirmationActivity
      */
     private void startAction(Attraction attraction, String pathName, int confirmAnimationType) {
         Intent intent = new Intent(mContext, ConfirmationActivity.class);
         intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, confirmAnimationType);
         mContext.startActivity(intent);

         UtilityService.clearNotification(mContext);
         UtilityService.clearRemoteNotifications(mContext);
         UtilityService.startDeviceActivity(mContext, pathName, attraction.name, attraction.city);

         ((Activity)mContext).finish();
     }

     /**
      * Helper method to generate the OnClickListener for the attraction actions.
      */
     private View.OnClickListener getStartActionClickListener(final Attraction attraction,
             final String pathName, final int confirmAnimationType) {
         View.OnClickListener clickListener = new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 startAction(attraction, pathName, confirmAnimationType);
             }
         };
         return clickListener;
     }

     public void setOnChromeFadeListener(OnChromeFadeListener listener) {
         mOnChromeFadeListener = listener;
     }

     public interface OnChromeFadeListener {
         abstract void onChromeFadeIn();
         abstract void onChromeFadeOut();
     }

     /**
      * Helper class to fade out views based on a delay and fade them back in if needed as well.
      */
     private class DelayedHide implements View.OnClickListener {

         ArrayList<View> hideViews = new ArrayList<View>(GRID_COLUMN_COUNT);
         Handler mHideHandler = new Handler();
         boolean mIsHidden = false;

         Runnable mHideRunnable = new Runnable() {
             @Override
             public void run() {
                 hide();
             }
         };

         void add(View newView) {
             hideViews.add(newView);
             delayedHide();
         }

         void remove(View removeView) {
             hideViews.remove(removeView);
         }

         void show() {
             mIsHidden = false;
             if (mOnChromeFadeListener != null) {
                 mOnChromeFadeListener.onChromeFadeIn();
             }
             for (View view : hideViews) {
                 if (view != null) {
                     view.animate().alpha(1).setDuration(FADE_IN_TIME_MS).start();
                 }
             }
             delayedHide();
         }

         void hide() {
             mIsHidden = true;
             mHideHandler.removeCallbacks(mHideRunnable);
             if (mOnChromeFadeListener != null) {
                 mOnChromeFadeListener.onChromeFadeOut();
             }
             for (int i=0; i<hideViews.size(); i++) {
                 if (hideViews.get(i) != null) {
                     hideViews.get(i).animate().alpha(0).setDuration(FADE_OUT_TIME_MS).start();
                 }
             }
         }

         void delayedHide() {
             mHideHandler.removeCallbacks(mHideRunnable);
             mHideHandler.postDelayed(mHideRunnable, FADE_OUT_DELAY_MS);
         }

         @Override
         public void onClick(View v) {
             if (mIsHidden) {
                 show();
             } else {
                 hide();
             }
         }
     }
 }
	/*
	* Copyright 2015 Google Inc. All rights reserved.
	*
	* 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.example.android.xyztouristattractions.ui;

	import android.app.Activity;
	import android.content.Context;
	import android.content.Intent;
	import android.graphics.Rect;
	import android.graphics.drawable.BitmapDrawable;
	import android.graphics.drawable.ColorDrawable;
	import android.graphics.drawable.Drawable;
	import android.os.Handler;
	import android.support.wearable.activity.ConfirmationActivity;
	import android.support.wearable.view.CardFrame;
	import android.support.wearable.view.CardScrollView;
	import android.support.wearable.view.GridPagerAdapter;
	import android.support.wearable.view.GridViewPager;
	import android.support.wearable.view.WatchViewStub;
	import android.text.TextUtils;
	import android.view.Gravity;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.FrameLayout;
	import android.widget.ImageView;
	import android.widget.TextView;

	import com.example.android.xyztouristattractions.R;
	import com.example.android.xyztouristattractions.common.Attraction;
	import com.example.android.xyztouristattractions.common.Constants;
	import com.example.android.xyztouristattractions.service.UtilityService;

	import java.util.ArrayList;

	/**
	* This adapter backs the main GridViewPager component found in
	* {@link com.example.android.xyztouristattractions.ui.AttractionsActivity}.
	*/
	public class AttractionsGridPagerAdapter extends GridPagerAdapter
	implements GridViewPager.OnPageChangeListener {

	public static final int FADE_IN_TIME_MS = 250;
	public static final int FADE_OUT_TIME_MS = 500;
	private static final int GRID_COLUMN_COUNT = 5;
	private static final int FADE_OUT_DELAY_MS = 1500;
	private static final int PAGER_PRIMARY_IMAGE_COLUMN = 0;
	private static final int PAGER_SECONDARY_IMAGE_COLUMN = 1;
	private static final int PAGER_DESCRIPTION_COLUMN = 2;
	private static final int PAGER_NAVIGATE_ACTION_COLUMN = 3;
	private static final int PAGER_OPEN_ACTION_COLUMN = 4;

	private Context mContext;
	private LayoutInflater mLayoutInflater;
	private ArrayList<Attraction> mAttractions;
	private Rect mInsets = new Rect();
	private DelayedHide mDelayedHide = new DelayedHide();
	private OnChromeFadeListener mOnChromeFadeListener;

	public AttractionsGridPagerAdapter(
	Context context, ArrayList<Attraction> attractions) {
	super();
	mContext = context;
	mLayoutInflater = LayoutInflater.from(context);
	mAttractions = attractions;
	}

	public void setData(ArrayList<Attraction> attractions) {
	mAttractions = attractions;
	}

	public void setInsets(Rect insets) {
	mInsets = insets;
	}

	@Override
	public int getRowCount() {
	return (mAttractions != null && mAttractions.size() > 0) ? mAttractions.size() : 1;
	}

	@Override
	public int getColumnCount(int i) {
	return GRID_COLUMN_COUNT;
	}

	@Override
	protected Object instantiateItem(ViewGroup container, int row, final int column) {
	if (mAttractions != null && mAttractions.size() > 0) {
	final Attraction attraction = mAttractions.get(row);
	switch (column) {
	case PAGER_PRIMARY_IMAGE_COLUMN:
	case PAGER_SECONDARY_IMAGE_COLUMN:
	// Two pages of full screen images, one with the attraction name
	// and one with the distance to the attraction
	final View view = mLayoutInflater.inflate(
	R.layout.gridpager_fullscreen_image, container, false);
	ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
	TextView textView = (TextView) view.findViewById(R.id.textView);
	FrameLayout overlayTextLayout =
	(FrameLayout) view.findViewById(R.id.overlaytext);

	mDelayedHide.add(overlayTextLayout);
	view.setOnClickListener(mDelayedHide);

	FrameLayout.LayoutParams params =
	(FrameLayout.LayoutParams) textView.getLayoutParams();
	params.bottomMargin = params.bottomMargin + mInsets.bottom;
	params.leftMargin = mInsets.left;
	params.rightMargin = mInsets.right;
	textView.setLayoutParams(params);

	if (column == PAGER_PRIMARY_IMAGE_COLUMN) {
	imageView.setImageBitmap(attraction.image);
	textView.setText(attraction.name);
	} else {
	imageView.setImageBitmap(attraction.secondaryImage);
	if (TextUtils.isEmpty(attraction.distance)) {
	overlayTextLayout.setVisibility(View.GONE);
	} else {
	textView.setText(mContext.getString(
	R.string.map_caption, attraction.distance));
	}
	}
	container.addView(view);
	return view;
	case PAGER_DESCRIPTION_COLUMN:
	// The description card page
	CardScrollView cardScrollView = (CardScrollView) mLayoutInflater.inflate(
	R.layout.gridpager_card, container, false);
	TextView descTextView = (TextView) cardScrollView.findViewById(R.id.textView);
	descTextView.setText(attraction.description);
	cardScrollView.setCardGravity(Gravity.BOTTOM);
	cardScrollView.setExpansionEnabled(true);
	cardScrollView.setExpansionDirection(CardFrame.EXPAND_DOWN);
	cardScrollView.setExpansionFactor(10);
	container.addView(cardScrollView);
	return cardScrollView;
	case PAGER_NAVIGATE_ACTION_COLUMN:
	// The navigate action
	final WatchViewStub navStub = (WatchViewStub) mLayoutInflater.inflate(
	R.layout.gridpager_action, container, false);

	navStub.setOnClickListener(getStartActionClickListener(
	attraction, Constants.START_NAVIGATION_PATH,
	ConfirmationActivity.SUCCESS_ANIMATION));

	navStub.setOnLayoutInflatedListener(
	new WatchViewStub.OnLayoutInflatedListener() {
	@Override
	public void onLayoutInflated(WatchViewStub watchViewStub) {
	ImageView imageView = (ImageView) navStub.findViewById(R.id.imageView);
	imageView.setImageResource(R.drawable.ic_full_directions_walking);
	TextView textView = (TextView) navStub.findViewById(R.id.textView);
	textView.setText(R.string.action_navigate);
	}
	});

	container.addView(navStub);
	return navStub;
	case PAGER_OPEN_ACTION_COLUMN:
	// The "open on device" action
	final WatchViewStub openStub = (WatchViewStub) mLayoutInflater.inflate(
	R.layout.gridpager_action, container, false);

	openStub.setOnClickListener(getStartActionClickListener(
	attraction, Constants.START_ATTRACTION_PATH,
	ConfirmationActivity.OPEN_ON_PHONE_ANIMATION));

	openStub.setOnLayoutInflatedListener(
	new WatchViewStub.OnLayoutInflatedListener() {
	@Override
	public void onLayoutInflated(WatchViewStub watchViewStub) {
	ImageView imageView = (ImageView) openStub.findViewById(R.id.imageView);
	imageView.setImageResource(R.drawable.ic_full_open_on_device);
	TextView textView = (TextView) openStub.findViewById(R.id.textView);
	textView.setText(R.string.action_open);
	}
	});

	container.addView(openStub);
	return openStub;
	}
	}
	return new View(mContext);
	}

	@Override
	public Drawable getBackgroundForPage(int row, int column) {
	if (column == 0) {
	return new ColorDrawable(0); // Empty black drawable
	}
	if (mAttractions.size() > 0 && mAttractions.get(row).image != null) {
	return new BitmapDrawable(mContext.getResources(), mAttractions.get(row).image);
	}
	return super.getBackgroundForPage(row, column);
	}

	@Override
	protected void destroyItem(ViewGroup viewGroup, int row, int column, Object object) {
	mDelayedHide.remove((View) object);
	viewGroup.removeView((View)object);
	}

	@Override
	public boolean isViewFromObject(View view, Object object) {
	return view == object;
	}

	@Override
	public void onPageScrolled(int posX, int posY, float posOffsetX, float posOffsetY,
	int posOffsetPixelsX, int posOffsetPixelsY) {}

	@Override
	public void onPageSelected(int row, int col) {}

	@Override
	public void onPageScrollStateChanged(int state) {
	mDelayedHide.show();
	}

	/**
	* Use the Wear Message API to execute an action. Clears local and remote notifications and
	* also runs a confirmation animation before finishing the Wear activity.
	*
	* @param attraction The attraction to start the action on
	* @param pathName The Wear Message API pathname
	* @param confirmAnimationType The confirmation animation type from ConfirmationActivity
	*/
	private void startAction(Attraction attraction, String pathName, int confirmAnimationType) {
	Intent intent = new Intent(mContext, ConfirmationActivity.class);
	intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, confirmAnimationType);
	mContext.startActivity(intent);

	UtilityService.clearNotification(mContext);
	UtilityService.clearRemoteNotifications(mContext);
	UtilityService.startDeviceActivity(mContext, pathName, attraction.name, attraction.city);

	((Activity)mContext).finish();
	}

	/**
	* Helper method to generate the OnClickListener for the attraction actions.
	*/
	private View.OnClickListener getStartActionClickListener(final Attraction attraction,
	final String pathName, final int confirmAnimationType) {
	View.OnClickListener clickListener = new View.OnClickListener() {
	@Override
	public void onClick(View v) {
	startAction(attraction, pathName, confirmAnimationType);
	}
	};
	return clickListener;
	}

	public void setOnChromeFadeListener(OnChromeFadeListener listener) {
	mOnChromeFadeListener = listener;
	}

	public interface OnChromeFadeListener {
	abstract void onChromeFadeIn();
	abstract void onChromeFadeOut();
	}

	/**
	* Helper class to fade out views based on a delay and fade them back in if needed as well.
	*/
	private class DelayedHide implements View.OnClickListener {

	ArrayList<View> hideViews = new ArrayList<View>(GRID_COLUMN_COUNT);
	Handler mHideHandler = new Handler();
	boolean mIsHidden = false;

	Runnable mHideRunnable = new Runnable() {
	@Override
	public void run() {
	hide();
	}
	};

	void add(View newView) {
	hideViews.add(newView);
	delayedHide();
	}

	void remove(View removeView) {
	hideViews.remove(removeView);
	}

	void show() {
	mIsHidden = false;
	if (mOnChromeFadeListener != null) {
	mOnChromeFadeListener.onChromeFadeIn();
	}
	for (View view : hideViews) {
	if (view != null) {
	view.animate().alpha(1).setDuration(FADE_IN_TIME_MS).start();
	}
	}
	delayedHide();
	}

	void hide() {
	mIsHidden = true;
	mHideHandler.removeCallbacks(mHideRunnable);
	if (mOnChromeFadeListener != null) {
	mOnChromeFadeListener.onChromeFadeOut();
	}
	for (int i=0; i<hideViews.size(); i++) {
	if (hideViews.get(i) != null) {
	hideViews.get(i).animate().alpha(0).setDuration(FADE_OUT_TIME_MS).start();
	}
	}
	}

	void delayedHide() {
	mHideHandler.removeCallbacks(mHideRunnable);
	mHideHandler.postDelayed(mHideRunnable, FADE_OUT_DELAY_MS);
	}

	@Override
	public void onClick(View v) {
	if (mIsHidden) {
	show();
	} else {
	hide();
	}
	}
	}
	}