nl.timmevandermeer.carglass.LocationActivity.java Source code

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Here is the source code for nl.timmevandermeer.carglass.LocationActivity.java

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/*
 * Copyright (C) 2014 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 nl.timmevandermeer.carglass;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;

import com.google.android.glass.view.WindowUtils;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

/**
 * Populates views in a {@code CardScrollView} with cards built from custom embedded layouts to
 * represent items in a simple table.
 */
public class LocationActivity extends Activity {
    private static final String TAG = LocationActivity.class.getSimpleName();

    private static final String STATIC_MAP_URL_TEMPLATE = "https://maps.googleapis.com/maps/api/staticmap"
            + "?center=%.5f,%.5f" + "&zoom=%d" + "&sensor=true" + "&size=640x360" + "&scale=1"
            + "&style=element:geometry%%7Cinvert_lightness:true"
            + "&style=feature:landscape.natural.terrain%%7Celement:geometry%%7Cvisibility:on"
            + "&style=feature:landscape%%7Celement:geometry.fill%%7Ccolor:0x303030"
            + "&style=feature:poi%%7Celement:geometry.fill%%7Ccolor:0x404040"
            + "&style=feature:poi.park%%7Celement:geometry.fill%%7Ccolor:0x0a330a"
            + "&style=feature:water%%7Celement:geometry%%7Ccolor:0x00003a"
            + "&style=feature:transit%%7Celement:geometry%%7Cvisibility:on%%7Ccolor:0x101010"
            + "&style=feature:road%%7Celement:geometry.stroke%%7Cvisibility:on"
            + "&style=feature:road.local%%7Celement:geometry.fill%%7Ccolor:0x606060"
            + "&style=feature:road.arterial%%7Celement:geometry.fill%%7Ccolor:0x888888";

    /**
     * Formats a Google static maps URL for the specified location and zoom level.
     */
    private static String makeStaticMapsUrl(double latitude, double longitude, int zoom) {
        return String.format(STATIC_MAP_URL_TEMPLATE, 52.001491, 4.369600, 18);
    }

    private ImageView mMapView;

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

        mMapView = new ImageView(this);
        setContentView(mMapView);

        loadMap(37.8019, -122.4189, 18);

    }

    /**
     * Load the map asynchronously and populate the ImageView when it's loaded.
     */
    private void loadMap(double latitude, double longitude, int zoom) {
        String url = makeStaticMapsUrl(52.001783, 4.368871, 10);
        new AsyncTask<String, Void, Bitmap>() {
            @Override
            protected Bitmap doInBackground(String... urls) {
                try {
                    HttpResponse response = new DefaultHttpClient().execute(new HttpGet(urls[0]));
                    InputStream is = response.getEntity().getContent();
                    return BitmapFactory.decodeStream(is);
                } catch (Exception e) {
                    Log.e(TAG, "Failed to load image", e);
                    return null;
                }
            }

            @Override
            protected void onPostExecute(Bitmap bitmap) {
                if (bitmap != null) {
                    mMapView.setImageBitmap(bitmap);
                }
            }
        }.execute(url);
    }

}