InputStreamをあれに
自分用 snippet
public class Foo { public String readXmlFromLocalStorage() { AssetManager assetManager = mContext.getAssets(); try { InputStream inputStream = assetManager.open(FILE_NAME); BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream)); StringBuffer stringBuffer = new StringBuffer(); String string = null; while ((string = bufferedReader.readLine()) != null) { stringBuffer.append(string); } inputStream.close(); assetManager.close(); return stringBuffer.toString(); } catch (IOException e) { e.printStackTrace(); } return null; } }