开发基于位置的 Android 应用

[代码] MovieSearchWidget.java

package com.javacodegeeks.android.apps.moviesearchapp.widget;    import android.app.PendingIntent;  import android.app.Service;  import android.appwidget.AppWidgetManager;  import android.appwidget.AppWidgetProvider;  import android.content.ComponentName;  import android.content.Context;  import android.content.Intent;  import android.net.Uri;  import android.os.IBinder;  import android.widget.RemoteViews;    import com.javacodegeeks.android.apps.moviesearchapp.R;  import com.javacodegeeks.android.apps.moviesearchapp.model.Movie;  import com.javacodegeeks.android.apps.moviesearchapp.services.MovieSeeker;    public class MovieSearchWidget extends AppWidgetProvider {          private static final String IMDB_BASE_URL = "http://m.imdb.com/title/";          @Override      public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {          // To prevent any ANR timeouts, we perform the update in a service          context.startService(new Intent(context, UpdateService.class));      }        public static class UpdateService extends Service {                  private MovieSeeker movieSeeker = new MovieSeeker();                   @Override          public void onStart(Intent intent, int startId) {              // Build the widget update for today              RemoteViews updateViews = buildUpdate(this);                // Push update for this widget to the home screen              ComponentName thisWidget = new ComponentName(this, MovieSearchWidget.class);              AppWidgetManager manager = AppWidgetManager.getInstance(this);              manager.updateAppWidget(thisWidget, updateViews);          }                  public RemoteViews buildUpdate(Context context) {                        Movie movie = movieSeeker.findLatest();                                     String imdbUrl = IMDB_BASE_URL + movie.imdbId;             // Build an update that holds the updated widget contents           RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.widget_layout);             updateViews.setTextViewText(R.id.app_name, getString(R.string.app_name));           updateViews.setTextViewText(R.id.movie_name, movie.name);                      Intent intent = new Intent();           intent.setAction("android.intent.action.VIEW");           intent.addCategory("android.intent.category.BROWSABLE");           intent.setData(Uri.parse(imdbUrl));                      PendingIntent pendingIntent =               PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);                        updateViews.setOnClickPendingIntent(R.id.movie_name, pendingIntent);                      return updateViews;          }            @Override          public IBinder onBind(Intent intent) {              // We don't need to bind to this service              return null;          }                }    }

<?xml version="1.0" encoding="utf-8"?>    <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"      android:minWidth="146dip"      android:minHeight="72dip"      android:updatePeriodMillis="10000"      android:initialLayout="@layout/widget_layout"  />

<?xml version="1.0" encoding="utf-8"?>    <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"      android:minWidth="146dip"      android:minHeight="72dip"      android:updatePeriodMillis="10000"      android:initialLayout="@layout/widget_layout"  />

<?xml version="1.0" encoding="utf-8"?>    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:id="@+id/widget"      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:focusable="true"      style="@style/WidgetBackground">              <TextView          android:id="@+id/app_name"          android:layout_width="wrap_content"           android:layout_height="wrap_content"          android:layout_marginTop="14dip"          android:layout_marginBottom="1dip"          android:includeFontPadding="false"          android:singleLine="true"          android:ellipsize="end"          style="@style/Text.WordTitle" />            <TextView            android:id="@+id/movie_name"          android:layout_width="fill_parent"           android:layout_height="wrap_content"          android:layout_below="@id/app_name"          android:paddingRight="5dip"          android:paddingBottom="4dip"          android:includeFontPadding="false"          android:lineSpacingMultiplier="0.9"          android:maxLines="4"          android:fadingEdge="vertical"          style="@style/Text.Movie" />        </RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>    <resources>        <style name="WidgetBackground">          <item name="android:background">@drawable/widget_bg</item>      </style>              <style name="Text">      </style>            <style name="Text.Title">          <item name="android:textSize">16sp</item>          <item name="android:textStyle">bold</item>            <item name="android:textColor">@android:color/black</item>      </style>            <style name="Text.Movie">          <item name="android:textSize">13sp</item>          <item name="android:textColor">@android:color/black</item>        </style>         </resources>

<application android:icon="@drawable/icon" android:label="@string/app_name">    ...               <!-- Broadcast Receiver that will process AppWidget updates -->          <receiver android:name=".widget.MovieSearchWidget" android:label="@string/widget_name">              <intent-filter>                  <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />              </intent-filter>              <meta-data android:name="android.appwidget.provider" android:resource="@xml/movie_search_widget" />            </receiver>                    <!-- Service to perform web API queries -->                  <service android:name=".widget.MovieSearchWidget$UpdateService" />            ...  </application>