private void initDB() {SharedPreferences perferences = PreferenceManager.getDefaultSharedPreferences(this);if (!perferences.contains("database")) {Log.v(TAG, "init database.");InputStream is = null;BufferedReader br = null;try {is = this.getResources().openRawResource(R.raw.init);br = new BufferedReader(new InputStreamReader(is, "gb2312"));String line;while ((line = br.readLine()) != null) {dbHelper.exec(line);}} catch (Exception e) {Log.v(TAG, "Failed read init file for ", e);} finally {try {if (br != null && is != null) {br.close();is.close();}} catch (Exception e) {Log.v(TAG, "Failed colse file io for ", e);}}SharedPreferences.Editor editor = perferences.edit();editor.putString("database", "true");editor.commit();}}

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