thoerup/androidutils/CheckUpdates.java

package dk.thoerup.androidutils;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.net.URL;
import java.net.URLConnection;

import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.DialogInterface.OnClickListener;
import android.content.SharedPreferences.Editor;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Environment;
import android.util.Log;

public class CheckUpdates {
        final static long TIMESPAN_DAY = 24*60*60*1000; // one day
        
        final static String CHECKUPDATES = "CheckUpdates";
        final static String LASTCHECK = "lastcheck";
        
        int versionCode;
        String versionName;
        String packageName;
        String phone_model;
        String androidVersion;
        
        String title;
        
        
        Context context;

        public void checkForUpdates(Context context, String url, String title,  String apkUrl) {
                checkForUpdates(context, url, title,  apkUrl, false);
        }

        public void checkForUpdates(Context context, String url, String title,  String apkUrl, boolean forced) {
                this.context = context;
                this.title = title;
                
                SharedPreferences prefs = context.getSharedPreferences(CHECKUPDATES, Context.MODE_PRIVATE);
                        
                long lastCheck = prefs.getLong(LASTCHECK, 0);           

                long now = System.currentTimeMillis(); //should i use  android.os.SystemClock.elapsedRealtime() instead ?
                Log.i(CHECKUPDATES, "Now=" + now + ",  lastCheck=" + lastCheck + ", lastCheck+timespan=" + (lastCheck + TIMESPAN_DAY) );
                
                if ( now > (lastCheck+TIMESPAN_DAY) ){

                        PackageManager pm = context.getPackageManager();
                        try {
                                PackageInfo pi;

                                pi = pm.getPackageInfo(context.getPackageName(), 0);

                                versionCode = pi.versionCode;
                                versionName = pi.versionName;
                                packageName = pi.packageName;
                                phone_model = android.os.Build.MODEL;
                                androidVersion = android.os.Build.VERSION.RELEASE;
                                
        
                                UpdateTask task = new UpdateTask(forced);
                                task.execute(url, apkUrl);
                                

                        } catch (NameNotFoundException e) {
                                Log.e(CHECKUPDATES, "NamingException", e);
                        }

                }
        }
        
        
        class UpdateTask extends AsyncTask<String,Void,Void> {
                boolean result = false;
                int newestVersion = 0;
                
                String apkUrl;
                
                boolean forced = false;
                
                public UpdateTask(boolean forced) {
                        this.forced = forced;
                }

                @Override
                protected Void doInBackground(String... arg0) {                 
                        String requestUrl = arg0[0] + "?version=" + encode(versionName) + "&phone=" + encode(phone_model) + "&android=" + encode(androidVersion);
                        apkUrl = arg0[1];
                        
                        try {
                                URL url = new URL(requestUrl);
                                URLConnection conn = url.openConnection();
                                conn.setConnectTimeout(2500);
                                                                
                                String resultStr = readIOStream( conn.getInputStream() );
                                resultStr = resultStr.trim();
                                newestVersion = Integer.parseInt(resultStr);
                                
                                result = true;
                                
                        } catch (Exception e) {
                                Log.e(CHECKUPDATES, "Check for " + packageName + " failed!", e);
                        }
                                                
                        return null;
                }
                
                private String encode(String data) {
                        try {
                                return java.net.URLEncoder.encode(data, "UTF-8");
                        } catch (Exception e) {
                                return data; //if encoding fails, return original and hope all goes well
                        }
                }
                
                private String readIOStream(InputStream in) throws IOException {
                        ByteArrayOutputStream baos = new ByteArrayOutputStream();
                        
                        byte buf[] = new byte[1024];
                        int len;
                        
                        while ( (len=in.read(buf)) != -1) {
                                baos.write(buf, 0, len);
                        }
                        
                        return baos.toString(); 
                }

                @Override
                protected void onPostExecute(Void r) {
                        super.onPostExecute(r);
                        
                        Log.i(CHECKUPDATES, "result=" + result + ", newestVersion" + newestVersion + ", versionCode=" + versionCode);
                        
                        if (result == true) {
                                
                                long now = System.currentTimeMillis();
                                SharedPreferences prefs = context.getSharedPreferences(CHECKUPDATES, Context.MODE_PRIVATE);
                                //when done write 
                                
                                Editor edit = prefs.edit();
                                edit.putLong(LASTCHECK, now );
                                edit.commit();
                                
                                
                                if (newestVersion > versionCode) {                      
                                        String launchUrl = (apkUrl == null) ? "market://search?q=pname:" + packageName : apkUrl;
                                        
                                        if (forced == true) { 
                                                forcedUpdate(launchUrl);
                                        } else {
                                                //showUpdateDialog(launchUrl);
                                                showNotification(launchUrl);
                                        }
                                }
                                
                        }
                        
                }
                
                private void forcedUpdate(String apkUrl) {
                        Log.e(CHECKUPDATES, "Forced update started");
                        try {
                                byte[] apkData = HttpUtil.getContent(apkUrl, 5000);
                                File tempFile = new File( Environment.getExternalStorageDirectory() + "/"  + HttpUtil.getLastPart(apkUrl) );
                                
                                if (tempFile.exists()) {
                                        tempFile.delete();
                                }
                                
                                RandomAccessFile raf = new RandomAccessFile(tempFile,"rw");
                                raf.write(apkData);
                                
                                Log.e(CHECKUPDATES, "File:" + tempFile.getPath());
                                
                                
                                Intent i =new Intent();
                                i.setAction(Intent.ACTION_VIEW);
                                i.setDataAndType( Uri.fromFile(tempFile), "application/vnd.android.package-archive");
                                i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK );


                                try {
                                        context.startActivity(i);
                                } catch (Exception e) {
                                        Log.e(CHECKUPDATES, "Activity launch failed", e); 
                                }
                                context = null;
                                 
                        } catch (Exception e) {
                                Log.e(CHECKUPDATES, "forcedUpdate failed", e);
                        }
                }
                
                private void showNotification(String launchUrl) {
                        NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
                        //int icon = android.R.drawable.sym_action_email; //TODO: find a better icon
                        int icon = R.drawable.searchicon;
                        
                        
                        Notification notification = new Notification(icon, "Update available", System.currentTimeMillis() );
                        notification.flags |= Notification.FLAG_AUTO_CANCEL ;
                        
                        CharSequence contentTitle = title;
                        CharSequence contentText = "New version available.";
                        Intent notificationIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(launchUrl) );
                        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK );
                        PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

                        notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
                        
                        nm.notify(1, notification);
                        
                }

                private void showUpdateDialog(final String launchUrl) {
                        AlertDialog.Builder builder = new AlertDialog.Builder(context);
                        builder.setTitle(title);
                        builder.setMessage("This application has an a newer version available. Update now?");
                        
                        builder.setPositiveButton("Yes", new OnClickListener() {                                                
                                public void onClick(DialogInterface dialog, int which) {

                                        
                                        Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(launchUrl) );
                                        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK );
                                        try {
                                                context.startActivity(i);
                                        } catch (Exception e) {
                                                Log.e(CHECKUPDATES, "Activity launch failed", e);
                                        }
                                        context = null;
                                        
                                }
                        });
                        builder.setNegativeButton("No", new OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        context = null;
                                }
                        });
                        
                        try {
                                builder.show();
                        } catch (Exception e) {
                                Log.e(CHECKUPDATES, "Builder.show failed", e);
                        }
                }
                
        }
        
        
}
1	torben	1129	package dk.thoerup.androidutils;
2	torben	908
3			import java.io.ByteArrayOutputStream;
4	torben	1246	import java.io.File;
5	torben	908	import java.io.IOException;
6			import java.io.InputStream;
7	torben	1246	import java.io.RandomAccessFile;
8	torben	908	import java.net.URL;
9			import java.net.URLConnection;
10
11			import android.app.AlertDialog;
12	torben	943	import android.app.Notification;
13			import android.app.NotificationManager;
14			import android.app.PendingIntent;
15	torben	908	import android.content.Context;
16			import android.content.DialogInterface;
17			import android.content.Intent;
18			import android.content.SharedPreferences;
19			import android.content.DialogInterface.OnClickListener;
20			import android.content.SharedPreferences.Editor;
21			import android.content.pm.PackageInfo;
22			import android.content.pm.PackageManager;
23			import android.content.pm.PackageManager.NameNotFoundException;
24			import android.net.Uri;
25			import android.os.AsyncTask;
26	torben	1246	import android.os.Environment;
27	torben	908	import android.util.Log;
28
29			public class CheckUpdates {
30	torben	946	final static long TIMESPAN_DAY = 246060*1000; // one day
31	torben	943
32	torben	908	final static String CHECKUPDATES = "CheckUpdates";
33			final static String LASTCHECK = "lastcheck";
34
35			int versionCode;
36			String versionName;
37			String packageName;
38			String phone_model;
39			String androidVersion;
40
41			String title;
42
43
44	torben	910	Context context;
45	torben	908
46	torben	1246	public void checkForUpdates(Context context, String url, String title, String apkUrl) {
47			checkForUpdates(context, url, title, apkUrl, false);
48			}
49	torben	910
50	torben	1246	public void checkForUpdates(Context context, String url, String title, String apkUrl, boolean forced) {
51	torben	908	this.context = context;
52			this.title = title;
53
54			SharedPreferences prefs = context.getSharedPreferences(CHECKUPDATES, Context.MODE_PRIVATE);
55	torben	1246
56			long lastCheck = prefs.getLong(LASTCHECK, 0);
57	torben	908
58			long now = System.currentTimeMillis(); //should i use android.os.SystemClock.elapsedRealtime() instead ?
59			Log.i(CHECKUPDATES, "Now=" + now + ", lastCheck=" + lastCheck + ", lastCheck+timespan=" + (lastCheck + TIMESPAN_DAY) );
60
61			if ( now > (lastCheck+TIMESPAN_DAY) ){
62
63			PackageManager pm = context.getPackageManager();
64			try {
65			PackageInfo pi;
66
67			pi = pm.getPackageInfo(context.getPackageName(), 0);
68
69			versionCode = pi.versionCode;
70			versionName = pi.versionName;
71			packageName = pi.packageName;
72			phone_model = android.os.Build.MODEL;
73			androidVersion = android.os.Build.VERSION.RELEASE;
74
75
76	torben	1246	UpdateTask task = new UpdateTask(forced);
77	torben	910	task.execute(url, apkUrl);
78	torben	908
79
80			} catch (NameNotFoundException e) {
81			Log.e(CHECKUPDATES, "NamingException", e);
82			}
83
84			}
85			}
86
87	torben	1246
88	torben	908	class UpdateTask extends AsyncTask<String,Void,Void> {
89			boolean result = false;
90			int newestVersion = 0;
91	torben	910
92			String apkUrl;
93	torben	1246
94			boolean forced = false;
95
96			public UpdateTask(boolean forced) {
97			this.forced = forced;
98			}
99	torben	908
100			@Override
101			protected Void doInBackground(String... arg0) {
102			String requestUrl = arg0[0] + "?version=" + encode(versionName) + "&phone=" + encode(phone_model) + "&android=" + encode(androidVersion);
103	torben	910	apkUrl = arg0[1];
104
105	torben	908	try {
106			URL url = new URL(requestUrl);
107			URLConnection conn = url.openConnection();
108			conn.setConnectTimeout(2500);
109
110			String resultStr = readIOStream( conn.getInputStream() );
111			resultStr = resultStr.trim();
112			newestVersion = Integer.parseInt(resultStr);
113
114			result = true;
115
116			} catch (Exception e) {
117			Log.e(CHECKUPDATES, "Check for " + packageName + " failed!", e);
118			}
119
120			return null;
121			}
122
123			private String encode(String data) {
124			try {
125			return java.net.URLEncoder.encode(data, "UTF-8");
126			} catch (Exception e) {
127			return data; //if encoding fails, return original and hope all goes well
128			}
129			}
130
131			private String readIOStream(InputStream in) throws IOException {
132			ByteArrayOutputStream baos = new ByteArrayOutputStream();
133
134			byte buf[] = new byte[1024];
135			int len;
136
137			while ( (len=in.read(buf)) != -1) {
138			baos.write(buf, 0, len);
139			}
140
141			return baos.toString();
142			}
143
144			@Override
145			protected void onPostExecute(Void r) {
146			super.onPostExecute(r);
147
148			Log.i(CHECKUPDATES, "result=" + result + ", newestVersion" + newestVersion + ", versionCode=" + versionCode);
149
150			if (result == true) {
151
152			long now = System.currentTimeMillis();
153			SharedPreferences prefs = context.getSharedPreferences(CHECKUPDATES, Context.MODE_PRIVATE);
154			//when done write
155	torben	1246
156	torben	908	Editor edit = prefs.edit();
157	torben	1246	edit.putLong(LASTCHECK, now );
158	torben	908	edit.commit();
159
160	torben	1246
161	torben	943	if (newestVersion > versionCode) {
162			String launchUrl = (apkUrl == null) ? "market://search?q=pname:" + packageName : apkUrl;
163	torben	1246
164			if (forced == true) {
165			forcedUpdate(launchUrl);
166			} else {
167			//showUpdateDialog(launchUrl);
168			showNotification(launchUrl);
169			}
170	torben	943	}
171
172			}
173
174			}
175
176	torben	1246	private void forcedUpdate(String apkUrl) {
177			Log.e(CHECKUPDATES, "Forced update started");
178			try {
179			byte[] apkData = HttpUtil.getContent(apkUrl, 5000);
180	torben	1247	File tempFile = new File( Environment.getExternalStorageDirectory() + "/" + HttpUtil.getLastPart(apkUrl) );
181	torben	1246
182			if (tempFile.exists()) {
183			tempFile.delete();
184			}
185
186			RandomAccessFile raf = new RandomAccessFile(tempFile,"rw");
187			raf.write(apkData);
188
189			Log.e(CHECKUPDATES, "File:" + tempFile.getPath());
190
191
192
193			Intent i =new Intent();
194			i.setAction(Intent.ACTION_VIEW);
195			i.setDataAndType( Uri.fromFile(tempFile), "application/vnd.android.package-archive");
196			i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK );
197
198
199			try {
200			context.startActivity(i);
201			} catch (Exception e) {
202			Log.e(CHECKUPDATES, "Activity launch failed", e);
203			}
204			context = null;
205
206			} catch (Exception e) {
207			Log.e(CHECKUPDATES, "forcedUpdate failed", e);
208			}
209			}
210
211	torben	943	private void showNotification(String launchUrl) {
212			NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
213	torben	944	//int icon = android.R.drawable.sym_action_email; //TODO: find a better icon
214			int icon = R.drawable.searchicon;
215	torben	943
216	torben	1129
217	torben	943	Notification notification = new Notification(icon, "Update available", System.currentTimeMillis() );
218			notification.flags \|= Notification.FLAG_AUTO_CANCEL ;
219
220			CharSequence contentTitle = title;
221			CharSequence contentText = "New version available.";
222			Intent notificationIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(launchUrl) );
223	torben	944	notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK );
224	torben	943	PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
225
226			notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
227
228			nm.notify(1, notification);
229
230			}
231
232			private void showUpdateDialog(final String launchUrl) {
233			AlertDialog.Builder builder = new AlertDialog.Builder(context);
234			builder.setTitle(title);
235			builder.setMessage("This application has an a newer version available. Update now?");
236
237			builder.setPositiveButton("Yes", new OnClickListener() {
238			public void onClick(DialogInterface dialog, int which) {
239
240	torben	908
241	torben	943	Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(launchUrl) );
242			i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK );
243	torben	908	try {
244	torben	943	context.startActivity(i);
245	torben	908	} catch (Exception e) {
246	torben	943	Log.e(CHECKUPDATES, "Activity launch failed", e);
247	torben	908	}
248	torben	943	context = null;
249	torben	908
250			}
251	torben	943	});
252			builder.setNegativeButton("No", new OnClickListener() {
253			public void onClick(DialogInterface dialog, int which) {
254			context = null;
255			}
256			});
257
258			try {
259			builder.show();
260			} catch (Exception e) {
261			Log.e(CHECKUPDATES, "Builder.show failed", e);
262	torben	908	}
263			}
264
265			}
266
267
268			}