wearable/wear/XYZTouristAttractions/Wearable/src/main/java/com/example/android/xyztouristattractions/ui/AttractionsActivity.java - platform/developers/samples/android - 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.graphics.Rect;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.v4.view.GestureDetectorCompat;
 import android.support.wearable.view.DismissOverlayView;
 import android.support.wearable.view.DotsPageIndicator;
 import android.support.wearable.view.GridViewPager;
 import android.util.Log;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.WindowInsets;
 import android.widget.FrameLayout;
 import android.widget.ProgressBar;

 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.common.Utils;
 import com.example.android.xyztouristattractions.service.UtilityService;
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.maps.model.LatLng;
 import com.google.android.gms.wearable.DataApi;
 import com.google.android.gms.wearable.DataMap;
 import com.google.android.gms.wearable.DataMapItem;
 import com.google.android.gms.wearable.Wearable;

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 import java.util.concurrent.TimeUnit;

 /**
  * The main Wear activity that displays nearby attractions in a
  * {@link android.support.wearable.view.GridViewPager}. Each row shows
  * one attraction and each column shows information or actions for that
  * particular attraction.
  */
 public class AttractionsActivity extends Activity
         implements AttractionsGridPagerAdapter.OnChromeFadeListener {
     private static final String TAG = AttractionsActivity.class.getSimpleName();

     private GestureDetectorCompat mGestureDetector;
     private DismissOverlayView mDismissOverlayView;
     private GridViewPager mGridViewPager;
     private AttractionsGridPagerAdapter mAdapter;
     private DotsPageIndicator mDotsPageIndicator;
     private ProgressBar mProgressBar;
     private Rect mInsets = new Rect(0, 0, 0, 0);

     private ArrayList<Attraction> mAttractions = new ArrayList<Attraction>();

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

         setContentView(R.layout.activity_main);
         final FrameLayout topFrameLayout = (FrameLayout) findViewById(R.id.topFrameLayout);
         mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
         mGridViewPager = (GridViewPager) findViewById(R.id.gridViewPager);
         mDotsPageIndicator = (DotsPageIndicator) findViewById(R.id.dotsPageIndicator);
         mAdapter = new AttractionsGridPagerAdapter(this, mAttractions);
         mAdapter.setOnChromeFadeListener(this);
         mGridViewPager.setAdapter(mAdapter);

         topFrameLayout.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
             @Override
             public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
                 // Call through to super implementation
                 insets = topFrameLayout.onApplyWindowInsets(insets);

                 boolean round = insets.isRound();

                 // Store system window insets regardless of screen shape
                 mInsets.set(insets.getSystemWindowInsetLeft(),
                         insets.getSystemWindowInsetTop(),
                         insets.getSystemWindowInsetRight(),
                         insets.getSystemWindowInsetBottom());

                 if (round) {
                     // On a round screen calculate the square inset to use.
                     // Alternatively could use BoxInsetLayout, although calculating
                     // the inset ourselves lets us position views outside the center
                     // box. For example, slightly lower on the round screen (by giving
                     // up some horizontal space).
                     mInsets = Utils.calculateBottomInsetsOnRoundDevice(
                             getWindowManager().getDefaultDisplay(), mInsets);

                     // Boost the dots indicator up by the bottom inset
                     FrameLayout.LayoutParams params =
                             (FrameLayout.LayoutParams) mDotsPageIndicator.getLayoutParams();
                     params.bottomMargin = mInsets.bottom;
                     mDotsPageIndicator.setLayoutParams(params);
                 }

                 mAdapter.setInsets(mInsets);
                 return insets;
             }
         });

         // Set up the DismissOverlayView
         mDismissOverlayView = (DismissOverlayView) findViewById(R.id.dismiss_overlay);
         mDismissOverlayView.setIntroText(getString(R.string.exit_intro_text));
         mDismissOverlayView.showIntroIfNecessary();
         mGestureDetector = new GestureDetectorCompat(this, new LongPressListener());

         Uri attractionsUri = getIntent().getParcelableExtra(Constants.EXTRA_ATTRACTIONS_URI);
         if (attractionsUri != null) {
             new FetchDataAsyncTask(this).execute(attractionsUri);
             UtilityService.clearNotification(this);
             UtilityService.clearRemoteNotifications(this);
         } else {
             finish();
         }
     }

     @Override
     public boolean dispatchTouchEvent(MotionEvent event) {
         return mGestureDetector.onTouchEvent(event) || super.dispatchTouchEvent(event);
     }

     @Override
     public boolean onTouchEvent(MotionEvent event) {
         return mGestureDetector.onTouchEvent(event) || super.onTouchEvent(event);
     }

     @Override
     public void onChromeFadeIn() {
         // As the custom UI chrome fades in, also fade the DotsPageIndicator in
         mDotsPageIndicator.animate().alpha(1).setDuration(
                 AttractionsGridPagerAdapter.FADE_IN_TIME_MS).start();
     }

     @Override
     public void onChromeFadeOut() {
         // As the custom UI chrome fades out, also fade the DotsPageIndicator out
         mDotsPageIndicator.animate().alpha(0).setDuration(
                 AttractionsGridPagerAdapter.FADE_OUT_TIME_MS).start();
     }

     private class LongPressListener extends GestureDetector.SimpleOnGestureListener {
         @Override
         public void onLongPress(MotionEvent event) {
             mDismissOverlayView.show();
         }
     }

     /**
      * A background task to load the attraction data via the Wear DataApi.
      * This can take a second or two sometimes as several images need to
      * be loaded.
      */
     private class FetchDataAsyncTask extends
             AsyncTask<Uri, Void, ArrayList<Attraction>> {

         private Context mContext;

         public FetchDataAsyncTask(Context context) {
             mContext = context;
         }

         @Override
         protected ArrayList<Attraction> doInBackground(Uri... params) {
             mAttractions.clear();

             // Connect to Play Services and the Wearable API
             GoogleApiClient googleApiClient = new GoogleApiClient.Builder(mContext)
                     .addApi(Wearable.API)
                     .build();

             ConnectionResult connectionResult = googleApiClient.blockingConnect(
                     Constants.GOOGLE_API_CLIENT_TIMEOUT_S, TimeUnit.SECONDS);

             if (!connectionResult.isSuccess() || !googleApiClient.isConnected()) {
                 Log.e(TAG, String.format(Constants.GOOGLE_API_CLIENT_ERROR_MSG,
                         connectionResult.getErrorCode()));
                 return null;
             }

             Uri attractionsUri = params[0];
             DataApi.DataItemResult dataItemResult =
                     Wearable.DataApi.getDataItem(googleApiClient, attractionsUri).await();

             if (dataItemResult.getStatus().isSuccess() && dataItemResult.getDataItem() != null) {
                 DataMapItem dataMapItem = DataMapItem.fromDataItem(dataItemResult.getDataItem());
                 List<DataMap> attractionsData =
                         dataMapItem.getDataMap().getDataMapArrayList(Constants.EXTRA_ATTRACTIONS);

                 // Loop through each attraction, adding them to the list
                 Iterator<DataMap> itr = attractionsData.iterator();
                 while (itr.hasNext()) {
                     DataMap attractionData = itr.next();

                     Attraction attraction = new Attraction();
                     attraction.name = attractionData.getString(Constants.EXTRA_TITLE);
                     attraction.description =
                             attractionData.getString(Constants.EXTRA_DESCRIPTION);
                     attraction.city = attractionData.get(Constants.EXTRA_CITY);
                     attraction.distance =
                             attractionData.getString(Constants.EXTRA_DISTANCE);
                     attraction.location = new LatLng(
                             attractionData.getDouble(Constants.EXTRA_LOCATION_LAT),
                             attractionData.getDouble(Constants.EXTRA_LOCATION_LNG));
                     attraction.image = Utils.loadBitmapFromAsset(googleApiClient,
                             attractionData.getAsset(Constants.EXTRA_IMAGE));
                     attraction.secondaryImage = Utils.loadBitmapFromAsset(googleApiClient,
                             attractionData.getAsset(Constants.EXTRA_IMAGE_SECONDARY));

                     mAttractions.add(attraction);
                 }
             }

             googleApiClient.disconnect();

             return mAttractions;
         }

         @Override
         protected void onPostExecute(ArrayList<Attraction> result) {
             if (result != null && result.size() > 0) {
                 // Update UI based on the result of the background processing
                 mAdapter.setData(result);
                 mAdapter.notifyDataSetChanged();
                 mDotsPageIndicator.setPager(mGridViewPager);
                 mDotsPageIndicator.setOnPageChangeListener(mAdapter);
                 mProgressBar.setVisibility(View.GONE);
                 mDotsPageIndicator.setVisibility(View.VISIBLE);
                 mGridViewPager.setVisibility(View.VISIBLE);
             } else {
                 finish();
             }
         }
     }
 }
	/*
	* 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.graphics.Rect;
	import android.net.Uri;
	import android.os.AsyncTask;
	import android.os.Bundle;
	import android.support.v4.view.GestureDetectorCompat;
	import android.support.wearable.view.DismissOverlayView;
	import android.support.wearable.view.DotsPageIndicator;
	import android.support.wearable.view.GridViewPager;
	import android.util.Log;
	import android.view.GestureDetector;
	import android.view.MotionEvent;
	import android.view.View;
	import android.view.WindowInsets;
	import android.widget.FrameLayout;
	import android.widget.ProgressBar;

	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.common.Utils;
	import com.example.android.xyztouristattractions.service.UtilityService;
	import com.google.android.gms.common.ConnectionResult;
	import com.google.android.gms.common.api.GoogleApiClient;
	import com.google.android.gms.maps.model.LatLng;
	import com.google.android.gms.wearable.DataApi;
	import com.google.android.gms.wearable.DataMap;
	import com.google.android.gms.wearable.DataMapItem;
	import com.google.android.gms.wearable.Wearable;

	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;
	import java.util.concurrent.TimeUnit;

	/**
	* The main Wear activity that displays nearby attractions in a
	* {@link android.support.wearable.view.GridViewPager}. Each row shows
	* one attraction and each column shows information or actions for that
	* particular attraction.
	*/
	public class AttractionsActivity extends Activity
	implements AttractionsGridPagerAdapter.OnChromeFadeListener {
	private static final String TAG = AttractionsActivity.class.getSimpleName();

	private GestureDetectorCompat mGestureDetector;
	private DismissOverlayView mDismissOverlayView;
	private GridViewPager mGridViewPager;
	private AttractionsGridPagerAdapter mAdapter;
	private DotsPageIndicator mDotsPageIndicator;
	private ProgressBar mProgressBar;
	private Rect mInsets = new Rect(0, 0, 0, 0);

	private ArrayList<Attraction> mAttractions = new ArrayList<Attraction>();

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

	setContentView(R.layout.activity_main);
	final FrameLayout topFrameLayout = (FrameLayout) findViewById(R.id.topFrameLayout);
	mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
	mGridViewPager = (GridViewPager) findViewById(R.id.gridViewPager);
	mDotsPageIndicator = (DotsPageIndicator) findViewById(R.id.dotsPageIndicator);
	mAdapter = new AttractionsGridPagerAdapter(this, mAttractions);
	mAdapter.setOnChromeFadeListener(this);
	mGridViewPager.setAdapter(mAdapter);

	topFrameLayout.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
	@Override
	public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
	// Call through to super implementation
	insets = topFrameLayout.onApplyWindowInsets(insets);

	boolean round = insets.isRound();

	// Store system window insets regardless of screen shape
	mInsets.set(insets.getSystemWindowInsetLeft(),
	insets.getSystemWindowInsetTop(),
	insets.getSystemWindowInsetRight(),
	insets.getSystemWindowInsetBottom());

	if (round) {
	// On a round screen calculate the square inset to use.
	// Alternatively could use BoxInsetLayout, although calculating
	// the inset ourselves lets us position views outside the center
	// box. For example, slightly lower on the round screen (by giving
	// up some horizontal space).
	mInsets = Utils.calculateBottomInsetsOnRoundDevice(
	getWindowManager().getDefaultDisplay(), mInsets);

	// Boost the dots indicator up by the bottom inset
	FrameLayout.LayoutParams params =
	(FrameLayout.LayoutParams) mDotsPageIndicator.getLayoutParams();
	params.bottomMargin = mInsets.bottom;
	mDotsPageIndicator.setLayoutParams(params);
	}

	mAdapter.setInsets(mInsets);
	return insets;
	}
	});

	// Set up the DismissOverlayView
	mDismissOverlayView = (DismissOverlayView) findViewById(R.id.dismiss_overlay);
	mDismissOverlayView.setIntroText(getString(R.string.exit_intro_text));
	mDismissOverlayView.showIntroIfNecessary();
	mGestureDetector = new GestureDetectorCompat(this, new LongPressListener());

	Uri attractionsUri = getIntent().getParcelableExtra(Constants.EXTRA_ATTRACTIONS_URI);
	if (attractionsUri != null) {
	new FetchDataAsyncTask(this).execute(attractionsUri);
	UtilityService.clearNotification(this);
	UtilityService.clearRemoteNotifications(this);
	} else {
	finish();
	}
	}

	@Override
	public boolean dispatchTouchEvent(MotionEvent event) {
	return mGestureDetector.onTouchEvent(event) \|\| super.dispatchTouchEvent(event);
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
	return mGestureDetector.onTouchEvent(event) \|\| super.onTouchEvent(event);
	}

	@Override
	public void onChromeFadeIn() {
	// As the custom UI chrome fades in, also fade the DotsPageIndicator in
	mDotsPageIndicator.animate().alpha(1).setDuration(
	AttractionsGridPagerAdapter.FADE_IN_TIME_MS).start();
	}

	@Override
	public void onChromeFadeOut() {
	// As the custom UI chrome fades out, also fade the DotsPageIndicator out
	mDotsPageIndicator.animate().alpha(0).setDuration(
	AttractionsGridPagerAdapter.FADE_OUT_TIME_MS).start();
	}

	private class LongPressListener extends GestureDetector.SimpleOnGestureListener {
	@Override
	public void onLongPress(MotionEvent event) {
	mDismissOverlayView.show();
	}
	}

	/**
	* A background task to load the attraction data via the Wear DataApi.
	* This can take a second or two sometimes as several images need to
	* be loaded.
	*/
	private class FetchDataAsyncTask extends
	AsyncTask<Uri, Void, ArrayList<Attraction>> {

	private Context mContext;

	public FetchDataAsyncTask(Context context) {
	mContext = context;
	}

	@Override
	protected ArrayList<Attraction> doInBackground(Uri... params) {
	mAttractions.clear();

	// Connect to Play Services and the Wearable API
	GoogleApiClient googleApiClient = new GoogleApiClient.Builder(mContext)
	.addApi(Wearable.API)
	.build();

	ConnectionResult connectionResult = googleApiClient.blockingConnect(
	Constants.GOOGLE_API_CLIENT_TIMEOUT_S, TimeUnit.SECONDS);

	if (!connectionResult.isSuccess() \|\| !googleApiClient.isConnected()) {
	Log.e(TAG, String.format(Constants.GOOGLE_API_CLIENT_ERROR_MSG,
	connectionResult.getErrorCode()));
	return null;
	}

	Uri attractionsUri = params[0];
	DataApi.DataItemResult dataItemResult =
	Wearable.DataApi.getDataItem(googleApiClient, attractionsUri).await();

	if (dataItemResult.getStatus().isSuccess() && dataItemResult.getDataItem() != null) {
	DataMapItem dataMapItem = DataMapItem.fromDataItem(dataItemResult.getDataItem());
	List<DataMap> attractionsData =
	dataMapItem.getDataMap().getDataMapArrayList(Constants.EXTRA_ATTRACTIONS);

	// Loop through each attraction, adding them to the list
	Iterator<DataMap> itr = attractionsData.iterator();
	while (itr.hasNext()) {
	DataMap attractionData = itr.next();

	Attraction attraction = new Attraction();
	attraction.name = attractionData.getString(Constants.EXTRA_TITLE);
	attraction.description =
	attractionData.getString(Constants.EXTRA_DESCRIPTION);
	attraction.city = attractionData.get(Constants.EXTRA_CITY);
	attraction.distance =
	attractionData.getString(Constants.EXTRA_DISTANCE);
	attraction.location = new LatLng(
	attractionData.getDouble(Constants.EXTRA_LOCATION_LAT),
	attractionData.getDouble(Constants.EXTRA_LOCATION_LNG));
	attraction.image = Utils.loadBitmapFromAsset(googleApiClient,
	attractionData.getAsset(Constants.EXTRA_IMAGE));
	attraction.secondaryImage = Utils.loadBitmapFromAsset(googleApiClient,
	attractionData.getAsset(Constants.EXTRA_IMAGE_SECONDARY));

	mAttractions.add(attraction);
	}
	}

	googleApiClient.disconnect();

	return mAttractions;
	}

	@Override
	protected void onPostExecute(ArrayList<Attraction> result) {
	if (result != null && result.size() > 0) {
	// Update UI based on the result of the background processing
	mAdapter.setData(result);
	mAdapter.notifyDataSetChanged();
	mDotsPageIndicator.setPager(mGridViewPager);
	mDotsPageIndicator.setOnPageChangeListener(mAdapter);
	mProgressBar.setVisibility(View.GONE);
	mDotsPageIndicator.setVisibility(View.VISIBLE);
	mGridViewPager.setVisibility(View.VISIBLE);
	} else {
	finish();
	}
	}
	}
	}