public void makeJSON() {
DatabaseHelper dbHelper = new DatabaseHelper(a.getApplicationContext());
SQLiteDatabase db = dbHelper.getWritableDatabase();
MedalsDao medalsDao = new MedalsDao(db);
List<Medal> medals = medalsDao.findAll();
JSONArray array = new JSONArray();
JSONObject json;
for (Medal medal : medals) {
try {
json = new JSONObject();
json.put(Constants.KEY_NAME, medal.getDescription());
json.put(Constants.KEY_CHECKED, medal.isChecked());
array.put(json);
} catch (JSONException e) {
break;
}
}
String filePath =
Environment.getExternalStorageDirectory()
+ File.separator
+ Constants.DIR_NAME
+ File.separator
+ Constants.FILE_NAME;
db.close();
File jsonFile = new File(filePath);
try {
PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(jsonFile)));
pw.print(array.toString());
pw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void restore() {
DatabaseHelper dbHelper = new DatabaseHelper(a.getApplicationContext());
SQLiteDatabase db = dbHelper.getWritableDatabase();
MedalsDao medalsDao = new MedalsDao(db);
String filePath =
Environment.getExternalStorageDirectory()
+ File.separator
+ Constants.DIR_NAME
+ File.separator
+ Constants.FILE_NAME;
try {
File file = new File(filePath);
byte[] fileByte = new byte[(int) file.length()];
FileInputStream fi = new FileInputStream(file);
String backupData;
fi.read(fileByte);
backupData = new String(fileByte);
fi.close();
JSONArray array = new JSONArray(backupData);
JSONObject json;
for (int i = 0; i < array.length(); i++) {
json = array.getJSONObject(i);
medalsDao.updateFromDesc(
json.getString(Constants.KEY_NAME), json.getInt(Constants.KEY_CHECKED));
}
} catch (Exception e) {
} finally {
db.close();
}
}