Java tutorial
//package com.java2s; //License from project: Apache License import android.os.Environment; import java.io.File; public class Main { public static String SDPATH = Environment.getExternalStorageDirectory() + "/Photo_LJ/"; public static void deleteDir() { File dir = new File(SDPATH); if (dir == null || !dir.exists() || !dir.isDirectory()) return; for (File file : dir.listFiles()) { if (file.isFile()) file.delete(); else if (file.isDirectory()) deleteDir(); } dir.delete(); } }