How to delete all files and folders in one folder on Android
android, file-io, java
Solution
Simplest way would be to use FileUtils.deleteDirectory from the Apache Commons IO library.
File dir = new File("root path");
FileUtils.deleteDirectory(dir);
Bear in mind this will also delete the containing directory.
Add this line in gradle file to have Apache
compile 'org.apache.commons:commons-io:1.3.2'
Problem
I use this code to delete all files: ``` File root = new File("root path"); File[] Files = root.listFiles(); if(Files != null) { int j; for(j = 0; j < Files.length; j++) { System.out.println(Files[j].getAbsolutePath()); System.out.println(Files[j].delete()); } } ``` It will delete false where `Files[j]` is a folder. I want to delete folder and all its sub files. How can I modify this?