Create Path and file under External Storage : File « File « Android






  1. Android
  2. File
  3. File

Create Path and file under External Storage

    

//package org.freemp3droid;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;

import android.content.Context;
import android.os.Environment;

class Util {
  public static final String DATE_STRING="yyyy-MM-dd-HH_mm_ss";
  public static String createPath(String fileType,String suffix,Context ctx)
  {
    long dateTaken = System.currentTimeMillis();   
    File filesDir = getStorageDir(ctx);
    String filesDirPath = filesDir.getAbsolutePath();
    filesDir.mkdirs();
    SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_STRING);
    Date date = new Date(dateTaken);
    String filepart = dateFormat.format(date);
    String filename = filesDirPath + "/" + filepart + fileType + suffix;
    return filename;
  }
  
  //takes /mnt/sdcard/1/2/3/whatever.wav and returns /mnt/sdcard/convdir/whatever.mp3
  public static String createMP3File(String orig,Context ctx)
  {
    File filesDir = getStorageDir(ctx);
    String filesDirPath = filesDir.getAbsolutePath();
    String origFile = orig.substring(orig.lastIndexOf("/"));
    origFile = origFile.substring(0, origFile.lastIndexOf("."));
    String filename = filesDirPath + "/" + origFile + ".mp3";
    return filename;
  }
  public static File getStorageDir(Context ctx) {
    String filesDirPath = Environment.getExternalStorageDirectory().toString() +"/" + "convdir";
    
    File ret = new File(filesDirPath);
    if(!ret.exists()) {
      ret.mkdirs();
    }
    return ret;
  }
  
  public static ArrayList<File> listFiles(Context ctx) {
    ArrayList<File> ret = new ArrayList<File>();
    File filesDir = getStorageDir(ctx);
    File[] list = filesDir.listFiles();
    for(File f: list) {
      if(f.getAbsolutePath().endsWith(".mp3")) {
        ret.add(f);
      }
    }
    return ret;
  }
}








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