thoerup/side9/Side9WidgetProvider.java

package dk.thoerup.side9;

import java.net.URL;
import java.net.URLConnection;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.util.Log;
import android.widget.RemoteViews;

public class Side9WidgetProvider extends AppWidgetProvider  {
        
        
        //The data needs to be static, since BroadcastReceivers (which WidgetProviders extends) are only valid during onReceive()
        private static Side9Data usedData;
                
        @Override
        public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
                super.onUpdate(context, appWidgetManager, appWidgetIds);
                
                final int N = appWidgetIds.length; //
                
                Log.e("Side9Pigen", "onUpdate:" + N);
                
                
        try {
                Side9Data newData = Side9Xml.loadXml();
                
                if (! newData.equals(usedData)) {
                        
                        
                        Log.e("Side9Pigen", "(Re)loading image:" + newData.url);
                                                
                        URL imgUrl = new URL( newData.url );            
                        
                        URLConnection conn = imgUrl.openConnection();
                        Bitmap image = BitmapFactory.decodeStream( conn.getInputStream() );
                        
                        
                        usedData = newData; // if we made it to here without exceptions, save the new data
                        
                
                        // Perform this loop procedure for each App Widget that belongs to this provider
                        for (int i=0; i<N; i++) {
                            int appWidgetId = appWidgetIds[i];
                                                    
                            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.side9widget);
                                                    
                            views.setImageViewBitmap(R.id.side9picture, image);
                            
                            // Launch a browser when user clicks on the image
                            Intent viewIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(Side9Xml.BASEURL));
                            viewIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                            PendingIntent pending = PendingIntent.getActivity(context, 0, viewIntent, Intent.FLAG_ACTIVITY_NEW_TASK);                       
                            views.setOnClickPendingIntent(R.id.side9picture, pending);                      
                            
                            // Tell the AppWidgetManager to perform an update on the current App Widget
                            appWidgetManager.updateAppWidget(appWidgetId, views);
                        }       
                } //END if (data.equals)
                
        } catch (Exception e) {
                Log.e("Side9Pigen", "update failed", e);
        }
        }

        
        //Called when the last widget is removed/disabled
        @Override
        public void onDisabled(Context context) {
                super.onDisabled(context);
                
                usedData = null; //free memory
        }

}
1	package dk.thoerup.side9;
2
3	import java.net.URL;
4	import java.net.URLConnection;
5
6	import android.app.PendingIntent;
7	import android.appwidget.AppWidgetManager;
8	import android.appwidget.AppWidgetProvider;
9	import android.content.Context;
10	import android.content.Intent;
11	import android.graphics.Bitmap;
12	import android.graphics.BitmapFactory;
13	import android.net.Uri;
14	import android.util.Log;
15	import android.widget.RemoteViews;
16
17	public class Side9WidgetProvider extends AppWidgetProvider {
18
19
20	//The data needs to be static, since BroadcastReceivers (which WidgetProviders extends) are only valid during onReceive()
21	private static Side9Data usedData;
22
23	@Override
24	public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
25	super.onUpdate(context, appWidgetManager, appWidgetIds);
26
27	final int N = appWidgetIds.length; //
28
29	Log.e("Side9Pigen", "onUpdate:" + N);
30
31
32	try {
33	Side9Data newData = Side9Xml.loadXml();
34
35	if (! newData.equals(usedData)) {
36
37
38	Log.e("Side9Pigen", "(Re)loading image:" + newData.url);
39
40	URL imgUrl = new URL( newData.url );
41
42	URLConnection conn = imgUrl.openConnection();
43	Bitmap image = BitmapFactory.decodeStream( conn.getInputStream() );
44
45
46	usedData = newData; // if we made it to here without exceptions, save the new data
47
48
49	// Perform this loop procedure for each App Widget that belongs to this provider
50	for (int i=0; i<N; i++) {
51	int appWidgetId = appWidgetIds[i];
52
53	RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.side9widget);
54
55	views.setImageViewBitmap(R.id.side9picture, image);
56
57	// Launch a browser when user clicks on the image
58	Intent viewIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(Side9Xml.BASEURL));
59	viewIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
60	PendingIntent pending = PendingIntent.getActivity(context, 0, viewIntent, Intent.FLAG_ACTIVITY_NEW_TASK);
61	views.setOnClickPendingIntent(R.id.side9picture, pending);
62
63	// Tell the AppWidgetManager to perform an update on the current App Widget
64	appWidgetManager.updateAppWidget(appWidgetId, views);
65	}
66	} //END if (data.equals)
67
68	} catch (Exception e) {
69	Log.e("Side9Pigen", "update failed", e);
70	}
71	}
72
73
74	//Called when the last widget is removed/disabled
75	@Override
76	public void onDisabled(Context context) {
77	super.onDisabled(context);
78
79	usedData = null; //free memory
80	}
81
82	}