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.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
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(Side9Config.PREFS_SHOWCAPTION, false);
                        
                        if (showcaption == true && usedData != null) {
                                views.setTextViewText(R.id.caption, " " + usedData.caption + " ");
                                views.setViewVisibility(R.id.caption, View.VISIBLE);
                        } 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(Side9Config.PREFS_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");
                        }
                }
                
                 DisplayMetrics metrics = new DisplayMetrics();
                 WindowManager wmgr = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
                 wmgr.getDefaultDisplay().getMetrics(metrics);
                 int w = metrics.widthPixels - (2*40);
                 int h = getHeight(w);
                 
                 Log.e(TAG, "w=" + w + "   h=" + h);
                
                 Bitmap full = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
                 Bitmap scaled = Bitmap.createScaledBitmap(full, w, h, true);
                 return scaled;
        }

        private static int getHeight(int w) {
                double h = w * (650.0 / 450.0);
                return (int)h;
        }
        
        //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.DisplayMetrics;
19	import android.util.Log;
20	import android.view.View;
21	import android.view.WindowManager;
22	import android.widget.RemoteViews;
23	import dk.thoerup.androidutils.HttpUtil;
24
25	public class Side9WidgetProvider extends AppWidgetProvider {
26
27	public static final String TAG = "Side9Pigen";
28
29	//The data needs to be static, since BroadcastReceivers (which WidgetProviders extends) are only valid during onReceive()
30	private static Side9Data usedData;
31	private static Bitmap usedBitmap;
32	private static long timestamp;
33
34	final static long UDPATESPAN = 46060*1000;
35
36	static {
37	timestamp = 0L;
38	}
39
40	public Side9WidgetProvider() {
41	Log.i(TAG, "WidgetProvider constructor called");
42	}
43
44	public void resetStatics() {
45	Log.i(TAG, "resetStatics");
46	usedData = null;
47	usedBitmap = null;
48	}
49
50
51
52
53
54	private void setImage(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
55	// Perform this loop procedure for each App Widget that belongs to this provider
56	final int N = appWidgetIds.length;
57	for (int i=0; i<N; i++) {
58	int appWidgetId = appWidgetIds[i];
59
60	RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.side9widget);
61
62	if (usedBitmap != null) {
63	views.setImageViewBitmap(R.id.side9picture, usedBitmap);
64	} else {
65	views.setImageViewResource(R.id.side9picture, R.drawable.side9logo);
66	}
67
68	boolean showcaption = context.
69	getSharedPreferences(Side9WidgetProvider.TAG, Context.MODE_PRIVATE).
70	getBoolean(Side9Config.PREFS_SHOWCAPTION, false);
71
72	if (showcaption == true && usedData != null) {
73	views.setTextViewText(R.id.caption, " " + usedData.caption + " ");
74	views.setViewVisibility(R.id.caption, View.VISIBLE);
75	} else {
76	views.setViewVisibility(R.id.caption, View.GONE);
77	}
78
79
80	//Intent viewIntent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://www.ekstrabladet.dk/side9/"));
81
82	Intent viewIntent = new Intent(context, dk.thoerup.side9.PictureOverview.class );
83
84
85	PendingIntent pending = PendingIntent.getActivity(context, 0, viewIntent, Intent.FLAG_ACTIVITY_NEW_TASK);
86	views.setOnClickPendingIntent(R.id.side9picture, pending);
87
88	// Tell the AppWidgetManager to perform an update on the current App Widget
89	appWidgetManager.updateAppWidget(appWidgetId, views);
90
91	Log.i(TAG, "done " + appWidgetId);
92	}
93	}
94
95	@Override
96	public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
97	super.onUpdate(context, appWidgetManager, appWidgetIds);
98
99	Log.i(TAG, "onUpdate:");
100
101	if (usedBitmap == null) { //load default view
102	usedBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.side9logo);
103	}
104
105
106
107	ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
108	if (connMgr.getBackgroundDataSetting() == false)
109	{
110	Log.i(TAG, "background data disabled");
111	return;
112	}
113
114	if (System.currentTimeMillis() > (timestamp+UDPATESPAN) ) {
115	Log.i(TAG, "time elapsed, force XML reload");
116	usedData = null;
117	}
118
119	try {
120	Side9Data newData = Side9Xml.loadXml();
121
122	if (! newData.equals(usedData)) {
123
124
125	Log.i(TAG, "(Re)loading image:" + newData.url);
126
127	Bitmap image = getImageData(context, newData);
128
129	usedData = newData; // if we made it to here without exceptions, save the new data
130	usedBitmap = image;
131	timestamp = System.currentTimeMillis();
132
133
134	} // endif
135
136	} catch (Exception e) {
137	Log.e("Side9Pigen", "update failed", e);
138	}
139
140	setImage(context,appWidgetManager,appWidgetIds);
141	Log.i("Side9Pigen", "update completed");
142	}
143
144	Bitmap getImageData(Context context, Side9Data data) throws IOException {
145
146	SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
147	boolean saveImage = prefs.getBoolean(Side9Config.PREFS_SAVEIMAGE, false);
148
149	final String savepath = Environment.getExternalStorageDirectory() + "/Side9";
150
151	File file = new File( savepath + "/" + data.getFilename() );
152
153	/* if the picture changes later on the day we do NOT want to use an old and invalid image
154	if (saveImage == true) {
155	if (file.exists()) {
156	return BitmapFactory.decodeFile(file.getAbsolutePath());
157	}
158	}*/
159
160
161	byte imageData[] = HttpUtil.getContent(data.url, 2500);
162
163	if (saveImage == true) {
164	if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
165	File savedir = new File(savepath);
166	savedir.mkdirs();
167
168	if (file.exists()) {
169	file.delete();
170	}
171
172	FileOutputStream fos = new FileOutputStream(file);
173	fos.write(imageData);
174	fos.close();
175
176	Intent rescan = new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory()) );
177	rescan.putExtra("read-only", false);
178	context.sendBroadcast(rescan);
179
180	} else {
181	Log.i(TAG, "sdcard is not mounted");
182	}
183	}
184
185	DisplayMetrics metrics = new DisplayMetrics();
186	WindowManager wmgr = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
187	wmgr.getDefaultDisplay().getMetrics(metrics);
188	int w = metrics.widthPixels - (2*40);
189	int h = getHeight(w);
190
191	Log.e(TAG, "w=" + w + " h=" + h);
192
193	Bitmap full = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
194	Bitmap scaled = Bitmap.createScaledBitmap(full, w, h, true);
195	return scaled;
196	}
197
198	private static int getHeight(int w) {
199	double h = w * (650.0 / 450.0);
200	return (int)h;
201	}
202
203	//Called when the last widget is removed/disabled
204	@Override
205	public void onDisabled(Context context) {
206	super.onDisabled(context);
207	Log.i(TAG, "onDisabled");
208
209	resetStatics();//free memory
210	}
211
212	@Override
213	public void onEnabled(Context context) {
214	super.onEnabled(context);
215	Log.i(TAG, "onEnabled");
216
217	resetStatics();//free memory
218	}
219
220	}