Android File IO to already existing resource files

suppose you have file res/raw/textfile.txt

• you may have some data that you want to load with application that is static
  and you store in this file

 

Change: to open file use Activity.getResources().openRawResource(R.raw.textfile);

 

 

 

 

EXAMPLE: reading from a static resource file res/raw/textfile.txt

 

App's Activity    

public class FilesActivity extends Activity {
 EditText textBox;
 static final int READ_BLOCK_SIZE = 100;
 /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

      textBox = (EditText) findViewById(R.id.txtText1);
   
      //STEP 1 get file to read from it.  NOTE:  reading from res/raw/textfile.txt
      InputStream is = this.getResources().openRawResource(R.raw.textfile);
      BufferedReader br = new BufferedReader(new InputStreamReader(is));  //STEP 2 Convert to BufferedReader
      String str = null;
      try {
         while ((str = br.readLine()) != null) {   //STEP 3: read one line at a time until end of file
            Toast.makeText(getBaseContext(), str, Toast.LENGTH_SHORT).show();
         }
         is.close();   //STEP 3: close all input streams
         br.close();
      } catch (IOException e) {
         e.printStackTrace();
      }
   }

}