Android : The operator == is undefined for the argument type(s)

having an issue checking null element in integer array.

The operator == is undefined for the argument type(s) int, null

onCreateView

private String[] FilePathStrings;
private File[] listFile;

....  
    listFile = file.listFiles();

    FilePathStrings = new String[listFile.length];


if(listFile.length == null){

                //   Do Something

                }else {

                  //   Do Something
                }