thoerup/side9/Side9WidgetProvider.java

package dk.thoerup.side9;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.ConnectivityManager;
import android.net.Uri;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.RemoteViews;
import dk.thoerup.androidutils.HttpUtil;

public class Side9WidgetProvider extends AppWidgetProvider  {

        public static final String TAG = "Side9Pigen";

        //The data needs to be static, since BroadcastReceivers (which WidgetProviders extends) are only valid during onReceive()
        private static Side9Data usedData;
        private static Bitmap usedBitmap; 
        private static long timestamp;

        final static long UDPATESPAN = 4*60*60*1000;

        static  {
                timestamp = 0L;
        }

        public Side9WidgetProvider() {
                Log.i(TAG, "WidgetProvider constructor called");
        }
        
        public void resetStatics() {
                Log.i(TAG, "resetStatics");
                usedData = null; 
                usedBitmap = null;              
        }
        
        
        private void setImage(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
                // Perform this loop procedure for each App Widget that belongs to this provider
                final int N = appWidgetIds.length; 
                for (int i=0; i<N; i++) {
                        int appWidgetId = appWidgetIds[i];

                        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.side9widget);

                        if (usedBitmap != null) {
                                views.setImageViewBitmap(R.id.side9picture, usedBitmap);
                        } else {
                                views.setImageViewResource(R.id.side9picture, R.drawable.side9logo);
                        }
                        
                        boolean showcaption = context.getSharedPreferences(Side9WidgetProvider.TAG, Context.MODE_PRIVATE).getBoolean("showcaption", false);
                        
                        if (showcaption == true) {
                                views.setTextViewText(R.id.caption, " " + usedData.caption + " ");
                        } else {
                                views.setViewVisibility(R.id.caption, View.GONE);
                        }


                        //Intent viewIntent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://www.ekstrabladet.dk/side9/"));                   

                        Intent viewIntent = new Intent(context, dk.thoerup.side9.PictureOverview.class );
                                                
                        
                        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);

                        Log.i(TAG, "done " + appWidgetId);
                }       
        }

        @Override
        public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
                super.onUpdate(context, appWidgetManager, appWidgetIds);

                Log.i(TAG, "onUpdate:");

                if (usedBitmap == null) { //load default view
                        usedBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.side9logo);
                }


                ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
                if (connMgr.getBackgroundDataSetting() == false)
                {
                        Log.i(TAG, "background data disabled");
                        return;
                }

                if (System.currentTimeMillis() > (timestamp+UDPATESPAN) ) {
                        Log.i(TAG, "time elapsed, force XML reload");
                        usedData = null;
                }

                try {
                        Side9Data newData = Side9Xml.loadXml();

                        if (! newData.equals(usedData)) {


                                Log.i(TAG, "(Re)loading image:" + newData.url);

                                Bitmap image = getImageData(context, newData);

                                usedData = newData; // if we made it to here without exceptions, save the new data
                                usedBitmap = image;
                                timestamp = System.currentTimeMillis();
                                

                        } // endif

                } catch (Exception e) {
                        Log.e("Side9Pigen", "update failed", e);
                }

                setImage(context,appWidgetManager,appWidgetIds);
                Log.i("Side9Pigen", "update completed");
        }
        
        Bitmap getImageData(Context context, Side9Data data) throws IOException {       
                
                SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
                boolean saveImage = prefs.getBoolean("saveimage", false);
                
                final String savepath = Environment.getExternalStorageDirectory() + "/Side9";
                
                File file = new File( savepath + "/" + data.getFilename() );
                
                /* if the picture changes later on the day we do NOT want to use an old and invalid image               
                if (saveImage == true) {                        
                        if (file.exists()) {
                                return BitmapFactory.decodeFile(file.getAbsolutePath());
                        }
                }*/
                
                                
                byte imageData[] = HttpUtil.getContent(data.url, 2500);
                
                if (saveImage == true) {
                        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
                                File savedir = new File(savepath);
                                savedir.mkdirs();
                                
                                if (file.exists()) {
                                        file.delete();
                                }
                                
                                FileOutputStream fos = new FileOutputStream(file);
                                fos.write(imageData);
                                fos.close();

                                Intent rescan = new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory()) );
                                rescan.putExtra("read-only", false);                                                            
                                context.sendBroadcast(rescan);
                                
                        } else {
                                Log.i(TAG, "sdcard is not mounted");
                        }
                }
                
                Bitmap full = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
                Bitmap scaled = Bitmap.createScaledBitmap(full, 400, 577, true);
                return scaled;
        }


        //Called when the last widget is removed/disabled
        @Override
        public void onDisabled(Context context) {
                super.onDisabled(context);
                Log.i(TAG, "onDisabled");
                
                resetStatics();//free memory
        }

        @Override
        public void onEnabled(Context context) {
                super.onEnabled(context);
                Log.i(TAG, "onEnabled");
                
                resetStatics();//free memory
        }
        
}
1	package dk.thoerup.side9;
2
3	import java.io.File;
4	import java.io.FileOutputStream;
5	import java.io.IOException;
6
7	import android.app.PendingIntent;
8	import android.appwidget.AppWidgetManager;
9	import android.appwidget.AppWidgetProvider;
10	import android.content.Context;
11	import android.content.Intent;
12	import android.content.SharedPreferences;
13	import android.graphics.Bitmap;
14	import android.graphics.BitmapFactory;
15	import android.net.ConnectivityManager;
16	import android.net.Uri;
17	import android.os.Environment;
18	import android.util.Log;
19	import android.view.View;
20	import android.widget.RemoteViews;
21	import dk.thoerup.androidutils.HttpUtil;
22
23	public class Side9WidgetProvider extends AppWidgetProvider {
24
25	public static final String TAG = "Side9Pigen";
26
27	//The data needs to be static, since BroadcastReceivers (which WidgetProviders extends) are only valid during onReceive()
28	private static Side9Data usedData;
29	private static Bitmap usedBitmap;
30	private static long timestamp;
31
32	final static long UDPATESPAN = 46060*1000;
33
34	static {
35	timestamp = 0L;
36	}
37
38	public Side9WidgetProvider() {
39	Log.i(TAG, "WidgetProvider constructor called");
40	}
41
42	public void resetStatics() {
43	Log.i(TAG, "resetStatics");
44	usedData = null;
45	usedBitmap = null;
46	}
47
48
49
50
51
52	private void setImage(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
53	// Perform this loop procedure for each App Widget that belongs to this provider
54	final int N = appWidgetIds.length;
55	for (int i=0; i<N; i++) {
56	int appWidgetId = appWidgetIds[i];
57
58	RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.side9widget);
59
60	if (usedBitmap != null) {
61	views.setImageViewBitmap(R.id.side9picture, usedBitmap);
62	} else {
63	views.setImageViewResource(R.id.side9picture, R.drawable.side9logo);
64	}
65
66	boolean showcaption = context.getSharedPreferences(Side9WidgetProvider.TAG, Context.MODE_PRIVATE).getBoolean("showcaption", false);
67
68	if (showcaption == true) {
69	views.setTextViewText(R.id.caption, " " + usedData.caption + " ");
70	} else {
71	views.setViewVisibility(R.id.caption, View.GONE);
72	}
73
74
75	//Intent viewIntent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://www.ekstrabladet.dk/side9/"));
76
77	Intent viewIntent = new Intent(context, dk.thoerup.side9.PictureOverview.class );
78
79
80	PendingIntent pending = PendingIntent.getActivity(context, 0, viewIntent, Intent.FLAG_ACTIVITY_NEW_TASK);
81	views.setOnClickPendingIntent(R.id.side9picture, pending);
82
83	// Tell the AppWidgetManager to perform an update on the current App Widget
84	appWidgetManager.updateAppWidget(appWidgetId, views);
85
86	Log.i(TAG, "done " + appWidgetId);
87	}
88	}
89
90	@Override
91	public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
92	super.onUpdate(context, appWidgetManager, appWidgetIds);
93
94	Log.i(TAG, "onUpdate:");
95
96	if (usedBitmap == null) { //load default view
97	usedBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.side9logo);
98	}
99
100
101
102	ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
103	if (connMgr.getBackgroundDataSetting() == false)
104	{
105	Log.i(TAG, "background data disabled");
106	return;
107	}
108
109	if (System.currentTimeMillis() > (timestamp+UDPATESPAN) ) {
110	Log.i(TAG, "time elapsed, force XML reload");
111	usedData = null;
112	}
113
114	try {
115	Side9Data newData = Side9Xml.loadXml();
116
117	if (! newData.equals(usedData)) {
118
119
120	Log.i(TAG, "(Re)loading image:" + newData.url);
121
122	Bitmap image = getImageData(context, newData);
123
124	usedData = newData; // if we made it to here without exceptions, save the new data
125	usedBitmap = image;
126	timestamp = System.currentTimeMillis();
127
128
129	} // endif
130
131	} catch (Exception e) {
132	Log.e("Side9Pigen", "update failed", e);
133	}
134
135	setImage(context,appWidgetManager,appWidgetIds);
136	Log.i("Side9Pigen", "update completed");
137	}
138
139	Bitmap getImageData(Context context, Side9Data data) throws IOException {
140
141	SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
142	boolean saveImage = prefs.getBoolean("saveimage", false);
143
144	final String savepath = Environment.getExternalStorageDirectory() + "/Side9";
145
146	File file = new File( savepath + "/" + data.getFilename() );
147
148	/* if the picture changes later on the day we do NOT want to use an old and invalid image
149	if (saveImage == true) {
150	if (file.exists()) {
151	return BitmapFactory.decodeFile(file.getAbsolutePath());
152	}
153	}*/
154
155
156	byte imageData[] = HttpUtil.getContent(data.url, 2500);
157
158	if (saveImage == true) {
159	if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
160	File savedir = new File(savepath);
161	savedir.mkdirs();
162
163	if (file.exists()) {
164	file.delete();
165	}
166
167	FileOutputStream fos = new FileOutputStream(file);
168	fos.write(imageData);
169	fos.close();
170
171	Intent rescan = new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory()) );
172	rescan.putExtra("read-only", false);
173	context.sendBroadcast(rescan);
174
175	} else {
176	Log.i(TAG, "sdcard is not mounted");
177	}
178	}
179
180	Bitmap full = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
181	Bitmap scaled = Bitmap.createScaledBitmap(full, 400, 577, true);
182	return scaled;
183	}
184
185
186	//Called when the last widget is removed/disabled
187	@Override
188	public void onDisabled(Context context) {
189	super.onDisabled(context);
190	Log.i(TAG, "onDisabled");
191
192	resetStatics();//free memory
193	}
194
195	@Override
196	public void onEnabled(Context context) {
197	super.onEnabled(context);
198	Log.i(TAG, "onEnabled");
199
200	resetStatics();//free memory
201	}
202
203	}