打開資源檔案assets

AssetManager localAssetManager = context.getAssets();
String deCode = null;
mInputStream = null;
try {
    mInputStream = localAssetManager.open("101_temp.txt_cipher");
    if (mInputStream != null) {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(mInputStream));
        String len;
        StringBuilder sb = new StringBuilder();
        while ((len = bufferedReader.readLine()) != null && sb.toString().length() <= 2048) {
            sb.append(len);
        }
        String code = sb.toString();
        deCode = EditorUtil.decode("template", code);
    } else {
        throw new RuntimeException("Can't open template id: " + templateId);
    }
} catch (IOException localIOException) {
    localIOException.printStackTrace();
}
if (deCode != null) {
    return new Scanner(deCode);
}
return null;