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.ComponentName;
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.util.Log;
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 = 3*60*60*1000;
        
        final static String SAVEDIR = "/sdcard/Side9/"; 


        static  {
                timestamp = 0L;
        }

        public Side9WidgetProvider() {
                Log.i(TAG, "WidgetProvider constructor called");
        }

        private void setImage(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, Bitmap image) {
                // 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 (image != null) {
                                views.setImageViewBitmap(R.id.side9picture, image);
                        } else {
                                views.setImageViewResource(R.id.side9picture, R.drawable.side9logo);
                        }
                        //views.setTextViewText(R.id.caption, newData.caption);


                        //View single file
//                      Intent viewIntent = new Intent(android.content.Intent.ACTION_VIEW);
        //              viewIntent.setDataAndType(Uri.parse("file:///sdcard/Side9/20100531_400.jpg"), "image/png");
                        
                        //view single file
                        //Intent viewIntent = new Intent(Intent.ACTION_VIEW);
                        //Uri u = Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "1" );
                        //viewIntent.setData(u);
                        
                        //Intent viewIntent = new Intent();
                        //viewIntent.setClassName("com.android.camera", "com.android.camera.GalleryPicker");
                        

                        Intent viewIntent = new Intent();
                        viewIntent.addCategory(Intent.CATEGORY_LAUNCHER);
                        viewIntent.setAction(Intent.ACTION_MAIN);
                        viewIntent.setComponent(new ComponentName("com.android.camera", ".GalleryPicker"));
                        viewIntent.setFlags(0x10200000); 

                        
                        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, usedBitmap);
                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);
                
                File file = new File( SAVEDIR + 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) {
                        File savedir = new File(SAVEDIR);
                        savedir.mkdirs();
                        
                        if (file.exists()) {
                                file.delete();
                        }
                        
                        FileOutputStream fos = new FileOutputStream(file);
                        fos.write(imageData);
                        fos.close();
                }
                
                return BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
        }


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

                usedData = null; //free memory
                usedBitmap = null;
        }

}
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.ComponentName;
11	import android.content.Context;
12	import android.content.Intent;
13	import android.content.SharedPreferences;
14	import android.graphics.Bitmap;
15	import android.graphics.BitmapFactory;
16	import android.net.ConnectivityManager;
17	import android.util.Log;
18	import android.widget.RemoteViews;
19	import dk.thoerup.androidutils.HttpUtil;
20
21	public class Side9WidgetProvider extends AppWidgetProvider {
22
23	public static final String TAG = "Side9Pigen";
24
25	//The data needs to be static, since BroadcastReceivers (which WidgetProviders extends) are only valid during onReceive()
26	private static Side9Data usedData;
27	private static Bitmap usedBitmap;
28	private static long timestamp;
29
30	final static long UDPATESPAN = 36060*1000;
31
32	final static String SAVEDIR = "/sdcard/Side9/";
33
34
35	static {
36	timestamp = 0L;
37	}
38
39	public Side9WidgetProvider() {
40	Log.i(TAG, "WidgetProvider constructor called");
41	}
42
43	private void setImage(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, Bitmap image) {
44	// Perform this loop procedure for each App Widget that belongs to this provider
45	final int N = appWidgetIds.length;
46	for (int i=0; i<N; i++) {
47	int appWidgetId = appWidgetIds[i];
48
49	RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.side9widget);
50
51	if (image != null) {
52	views.setImageViewBitmap(R.id.side9picture, image);
53	} else {
54	views.setImageViewResource(R.id.side9picture, R.drawable.side9logo);
55	}
56	//views.setTextViewText(R.id.caption, newData.caption);
57
58
59
60
61	//View single file
62	// Intent viewIntent = new Intent(android.content.Intent.ACTION_VIEW);
63	// viewIntent.setDataAndType(Uri.parse("file:///sdcard/Side9/20100531_400.jpg"), "image/png");
64
65	//view single file
66	//Intent viewIntent = new Intent(Intent.ACTION_VIEW);
67	//Uri u = Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "1" );
68	//viewIntent.setData(u);
69
70	//Intent viewIntent = new Intent();
71	//viewIntent.setClassName("com.android.camera", "com.android.camera.GalleryPicker");
72
73
74	Intent viewIntent = new Intent();
75	viewIntent.addCategory(Intent.CATEGORY_LAUNCHER);
76	viewIntent.setAction(Intent.ACTION_MAIN);
77	viewIntent.setComponent(new ComponentName("com.android.camera", ".GalleryPicker"));
78	viewIntent.setFlags(0x10200000);
79
80
81
82
83	PendingIntent pending = PendingIntent.getActivity(context, 0, viewIntent, Intent.FLAG_ACTIVITY_NEW_TASK);
84	views.setOnClickPendingIntent(R.id.side9picture, pending);
85
86	// Tell the AppWidgetManager to perform an update on the current App Widget
87	appWidgetManager.updateAppWidget(appWidgetId, views);
88
89	Log.i(TAG, "done " + appWidgetId);
90	}
91	}
92
93	@Override
94	public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
95	super.onUpdate(context, appWidgetManager, appWidgetIds);
96
97	Log.i(TAG, "onUpdate:");
98
99	if (usedBitmap == null) { //load default view
100	usedBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.side9logo);
101	}
102
103
104
105	ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
106	if (connMgr.getBackgroundDataSetting() == false)
107	{
108	Log.i(TAG, "background data disabled");
109	return;
110	}
111
112	if (System.currentTimeMillis() > (timestamp+UDPATESPAN) ) {
113	Log.i(TAG, "time elapsed, force XML reload");
114	usedData = null;
115	}
116
117	try {
118	Side9Data newData = Side9Xml.loadXml();
119
120	if (! newData.equals(usedData)) {
121
122
123	Log.i(TAG, "(Re)loading image:" + newData.url);
124
125	Bitmap image = getImageData(context, newData);
126
127	usedData = newData; // if we made it to here without exceptions, save the new data
128	usedBitmap = image;
129	timestamp = System.currentTimeMillis();
130
131
132	} // endif
133
134	} catch (Exception e) {
135	Log.e("Side9Pigen", "update failed", e);
136	}
137
138	setImage(context,appWidgetManager,appWidgetIds, usedBitmap);
139	Log.i("Side9Pigen", "update completed");
140	}
141
142	Bitmap getImageData(Context context, Side9Data data) throws IOException {
143
144	SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
145	boolean saveImage = prefs.getBoolean("saveimage", false);
146
147	File file = new File( SAVEDIR + data.getFilename() );
148
149	/* if the picture changes later on the day we do NOT want to use an old and invalid image
150	if (saveImage == true) {
151	if (file.exists()) {
152	return BitmapFactory.decodeFile(file.getAbsolutePath());
153	}
154	}*/
155
156	byte imageData[] = HttpUtil.getContent(data.url, 2500);
157
158	if (saveImage == true) {
159	File savedir = new File(SAVEDIR);
160	savedir.mkdirs();
161
162	if (file.exists()) {
163	file.delete();
164	}
165
166	FileOutputStream fos = new FileOutputStream(file);
167	fos.write(imageData);
168	fos.close();
169	}
170
171	return BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
172	}
173
174
175	//Called when the last widget is removed/disabled
176	@Override
177	public void onDisabled(Context context) {
178	super.onDisabled(context);
179	Log.i(TAG, "onDisabled");
180
181	usedData = null; //free memory
182	usedBitmap = null;
183	}
184
185	}