How to delete internal storage file in android?
If you want to delete all files from a folder then use the following function:
private void deleteTempFolder(String dir) { File myDir = new File(Environment.getExternalStorageDirectory() + "/"+dir); if (myDir.isDirectory()) { String[] children = myDir.list(); for (int i = 0; i < children.length; i++) { new File(myDir, children[i]).delete(); } } }Folder must be present on storage. If not we can check one more codition for it.
if (myDir.exists() && myDir.isDirectory()) {//write same defination for it.}