How to remove all files from a folder?

Question

I am trying to remove all files from a folder using Cordova and Android, the problem is that every code I think, only shows how to remove FILES and not FILES FROM A FOLDER.

The problem is I don’t know the name of the files.

Here is an example of code to remove files (I need to remove FILES from which I don’t know the name of a folder)

var path =  cordova.file.applicationStorageDirectory;
var filename = "arquivoABC.txt";

window.resolveLocalFileSystemURL(path, function(dir) {
    dir.getFile(filename, {create:false}, function(fileEntry) {
              fileEntry.remove(function(){
                  // The file has been removed succesfully
              },function(error){
                  // Error deleting the file
              },function(){
                 // The file doesn't exist
              });
    });
});

Answer 1

You must use the method removeRecursively(). For example:

$cordovaFile.removeRecursively('/storage/sdcard/meudiretorio', "")
  .then(function (success) {
    // apagou com sucesso

}, function (error) {
    // erro ao apagar arquivos
});

Basic methods regarding file in Apache Cordova:

• removeRecursively: Delete a directory and all its contents.
• getMetadata: Find the metadata of a directory.
• setMetadata: Set metadata in a directory.
• moveTo: Move a directory to a different location in the file system
• copyTo: Copy a directory to a different location in the file system
• toURL: Return a URL that can be used to locate a directory.
• remove: Delete a directory. Directory must be empty.
• getParent: Find the parent directory
• createReader: Create a new DirectoryReader that can read entries from a directory.
• getDirectory: Create or search a directory.
• getFile: Create or search a file.

See more details in the documentation.

Answer 2

I solved it in a similar way removeRecursively

I got the idea thanks to my friend Ack Lay, thank you.

window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onRequestFileSystem, fail);

            function onRequestFileSystem(fileSystem) {
                var directoryReader = fileSystem.root.createReader();
                directoryReader.readEntries(onReadEntries, fail);
            }

            function onReadEntries(entries) {
                var i;
                for (i = 0; i < entries.length; i++) {
                    if (entries[i].name.indexOf("pacoteapp_v") !== -1) {
                        window.resolveLocalFileSystemURL(entries[i].nativeURL, function (dir) {
                            dir.getFile(entries[i].name, { create: false }, function (fileEntry) {
                                fileEntry.remove(function () {
                                }, function (error) {
                                }, function () {
                                });
                            });
                        });
                    }
                }
            }