1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
package org.navitproject.navit;
import android.app.Activity;
import android.app.NotificationManager;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.SharedPreferences.Editor;
import android.os.AsyncTask;
import android.os.Environment;
import android.widget.Toast;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.Map;
import java.util.Map.Entry;
public class NavitRestoreTask extends AsyncTask<Void, Void, String> {
private Navit mActivity;
private ProgressDialog mDialog;
private String mTimestamp;
public NavitRestoreTask(Navit context, String timestamp) {
mActivity = context;
mTimestamp = timestamp;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
/* Create a Wait Progress Dialog to inform the User that we are working */
mDialog = new ProgressDialog(mActivity);
mDialog.setIndeterminate(true);
mDialog.setMessage(mActivity.getString(R.string.restoring));
mDialog.show();
}
@SuppressWarnings("unchecked")
@Override
protected String doInBackground(Void... v) {
/* This is the Directory where all Subdirectories are stored by date */
File backupDir = new File(Environment.getExternalStorageDirectory().getPath() + "/navit/backup/" + mTimestamp);
/* Check if there is a Backup Directory */
if (!backupDir.isDirectory())
return mActivity.getString(R.string.backup_not_found);
ObjectInputStream preferenceOIS = null;
try {
/* Delete all old Files in Home */
mActivity.removeFileIfExists(Navit.NAVIT_DATA_DIR + "/home/bookmark.txt");
mActivity.removeFileIfExists(Navit.NAVIT_DATA_DIR + "/home/destination.txt");
mActivity.removeFileIfExists(Navit.NAVIT_DATA_DIR + "/home/gui_internal.txt");
/* Restore Files in home */
mActivity.copyFileIfExists(backupDir.getPath() + "/bookmark.txt", Navit.NAVIT_DATA_DIR + "/home/bookmark.txt");
mActivity.copyFileIfExists(backupDir.getPath() + "/destination.txt", Navit.NAVIT_DATA_DIR + "/home/destination.txt");
mActivity.copyFileIfExists(backupDir.getPath() + "/gui_internal.txt", Navit.NAVIT_DATA_DIR + "/home/gui_internal.txt");
/* Restore Shared Preferences */
preferenceOIS = new ObjectInputStream(new FileInputStream(backupDir.getPath() + "/preferences.bak"));
Map<String, ?> entries = (Map<String, ?>) preferenceOIS.readObject();
Editor prefEditor = mActivity.getSharedPreferences(Navit.NAVIT_PREFS, Context.MODE_PRIVATE).edit();
/* Remove all old Preferences */
prefEditor.clear();
/* Iterate through all Entries and add them to our Preferences */
for (Entry<String, ?> entry : entries.entrySet()) {
Object value = entry.getValue();
String key = entry.getKey();
if (value instanceof Boolean)
prefEditor.putBoolean(key, ((Boolean) value).booleanValue());
else if (value instanceof Float)
prefEditor.putFloat(key, ((Float) value).floatValue());
else if (value instanceof Integer)
prefEditor.putInt(key, ((Integer) value).intValue());
else if (value instanceof Long)
prefEditor.putLong(key, ((Long) value).longValue());
else if (value instanceof String)
prefEditor.putString(key, (String) value);
}
if (!prefEditor.commit())
return mActivity.getString(R.string.failed_to_restore);
}
catch (Exception e) {
e.printStackTrace();
return mActivity.getString(R.string.failed_to_restore);
}
finally {
try {
/* Close Stream to prevent Resource leak */
if (preferenceOIS != null)
preferenceOIS.close();
}
catch (IOException e) {
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
/* Dismiss the Wait Progress Dialog */
mDialog.dismiss();
/* If result is non null an Error occured */
if (result != null) {
Toast.makeText(mActivity, result, Toast.LENGTH_LONG).show();
return;
}
/* Navit needs to be restarted. Currently the User has to restart it by himself */
Toast.makeText(mActivity, mActivity.getString(R.string.restore_successful_please_restart_navit), Toast.LENGTH_LONG).show();
NotificationManager nm = (NotificationManager) mActivity.getSystemService(Context.NOTIFICATION_SERVICE);
nm.cancel(R.string.app_name);
NavitVehicle.removeListener();
mActivity.finish();
}
@Override
protected void onCancelled() {
super.onCancelled();
Toast.makeText(mActivity, mActivity.getString(R.string.restore_failed), Toast.LENGTH_LONG).show();
mDialog.dismiss();
}
}
|
