Using assets in Android

Android offers one more directory where you can keep files which also will be included in package. This directory called /assets. The difference between /res and /assets is that Android doesn’t generate IDs for assets content. You need to specify relative path and name for files inside /assets. I am going to show simple example which shows how you can access /assets content.
For this operation need to use AssetManager:

import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import android.app.Activity;import android.content.res.AssetManager;import android.os.Bundle;import android.util.Log;import android.widget.EditText;public class Main extends Activity{private EditText firstField;private EditText secondField;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);AssetManager assetManager = getAssets();String[] files = null;try{files = assetManager.list("image")} catch (IOException e){Log.e("tag",e.getMessage())}firstField = (EditText) findViewById(R.id.firstId);firstField.setText(Integer.toString(files.length) + " file. File name is "+ files[0]);InputStream inputStream = null;try{inputStream = assetManager.open("readme.txt")} catch (IOException e){Log.e("tag",e.getMessage())}String s = readTextFile(inputStream);secondField = (EditText) findViewById(R.id.secondId);secondField.setText(s)}private String readTextFile(InputStream inputStream){ByteArrayOutputStream outputStream = new ByteArrayOutputStream();byte buf[] = new byte[1024];int len;try{while ((len = inputStream.read(buf)) != -1){outputStream.write(buf,0,len)}outputStream.close();inputStream.close()} catch (IOException e){}return outputStream.toString()}}

In folder /assets i created folder /image and put icon.png from /drawable. And also I created simple readme.txt with text Hello,World!
I used

AssetManager assetManager = getAssets();

for accessing to /assets folder.

As you can see it is simple.