Android Utililty Methods File Delete

List of utility methods to do File Delete

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Description

The list of methods to do File Delete are organized into topic(s).

Method

booleandeleteFile(String strSrc)
Delete file 
File flSrc = new File(strSrc);
return flSrc.delete();
voiddeleteFileOnly(String path)
delete File Only 
File file = new File(path);
if (file.exists() && file.isFile()) {
    file.delete();
booleandeleteFiles(File file)
delete Files 
return deleteFiles(file, ".*");
booleandeleteFiles(File file, String regex)
recursively delete all sub files which matches regular expression 
if (!file.exists())
    return true;
if (file.isDirectory()) {
    File[] subFiles = file.listFiles();
    for (File subFile : subFiles) {
        if (!deleteFiles(subFile, regex))
            return false;
} else if (file.getName().matches(regex))
    return file.delete();
return true;
voiddeleteFilesRecursive(File src)
delete all the files in a directory recursively 
if (!src.exists()) {
    if (!src.mkdirs()) {
        throw new IOException(
                "deleteFiles: Could not create direcotry: "
                        + src.getAbsolutePath() + ".");
} else if (!src.canRead()) { 
    throw new IOException("copyFiles: No right to source: "
...
booleandeleteFolder(File targetFolder)
delete Folder 
try {
    File[] childFile = targetFolder.listFiles();
    if (childFile == null) {
        return !targetFolder.exists();
    int size = childFile.length;
    if (size > 0) {
        for (int i = 0; i < size; i++) {
...
voiddeleteFolders(File dir)
delete Folders 
if (dir.isDirectory()) {
    File[] children = dir.listFiles();
    for (File child : children) {
        deleteFolders(child);
    dir.delete();
voiddeleteIfExists(File file)
Calls #delete delete (file) if file != null and file exists. 
if ((file != null) && file.exists())
    delete(file);
voiddeleteOldFile(String strPath, String strWildcard, int iOffset)
Delete unused file 
booleandeleteRecursively(File dir)
Deletes a file recursively. 

if (dir == null) {
    return false;
boolean result = true;
if (dir.isDirectory()) {
    for (File child : dir.listFiles()) {
        result = result && deleteRecursively(child);
return result && dir.delete();