Sort The File In File Explorer By Implementing Comparator in Android Development

In the previous example of our file explorer, the files listed not in order. To list it in order, we have to implement our own custom comparator.

This example shows how you can sort and display list of files on your storage media by implementing comparator.

Algorithm:

1.) Create a new project by File-> New -> Android Project name it FileComparator.

2.) Write following permissions into android manifest.xml:

 

 

 

3.) Run for output.

Steps:

1.) Create a project named FileComparator and set the information as stated in the image.

Build Target: Android 4.4
Application Name: FileComparator
Package Name: com.example. FileComparator
Activity Name: FileComparatorActivity

filecomp1

2.) Open FileComparatorActivity.java file and write following code there:

 

 

3.) Compile and build the project.

Output

filecomp2