重写了助手文件排序功能,支持了文件夹在前面文件在后面,添加智能类型排序功能

This commit is contained in:
muqing153 2023-01-31 16:26:12 +08:00
parent 19404d9d44
commit 9d56eec131

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@ -0,0 +1,131 @@
import java.io.File;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class FileSort {
final int name=0,time=1,size=2,type=3;
public static String[] type_list;
public FileSort(List<File> a,int manner){
switch (manner){
case name:
sort_name(a);
break;
case time:
sort_time(a);
break;
case size:
sort_size(a);
break;
case type:
sort_type(a);
break;
default:
}
}
public static void sort_front(List<File> a){
Collections.sort(a, new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
if (o1.isDirectory() && o2.isFile())
return -1;
if (o1.isFile() && o2.isDirectory())
return 1;
return 0;
}
});
}
public static void sort_name(List<File> a){
Collections.sort(a,new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
if (o1.isDirectory() && o2.isFile())
return -1;
if (o1.isFile() && o2.isDirectory())
return 1;
return o1.getName().compareTo(o2.getName());
}
});
sort_front(a);
}
public static void sort_time(List<File> a){
Collections.sort(a,new Comparator<File>() {
@Override
public int compare(File f1, File f2) {
long diff = f1.lastModified() - f2.lastModified();
if (diff > 0)
return 1;
else if (diff == 0)
return 0;
else
return -1;
//如果 if 中修改为 返回-1 同时此处修改为返回 1 排序就会是递减
}
});
sort_front(a);
}
public void sort_size(List<File> a){
Collections.sort(a, new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
long diff = o1.length() - o2.length();
if (diff > 0)
return 1;
else if (diff == 0)
return 0;
else
return -1;
}
});
sort_front(a);
}
public static void sort_type(List<File> a){
//文件类型排序 按照后缀优先级
// System.out.println(type_list[0]);
Collections.sort(a, new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
if (o1.isFile()) {
String name_a = o1.getName();
String o_z = name_a.substring(name_a.lastIndexOf("."));
// System.out.println(o_z);
//获取 name_a文件名字的后缀
int length=length(type_list,o_z);
System.out.println(length);
//查找后缀是不是存在于 type_list数据中 如果存在返回存在位置 如果不存在则返回<0的值
if (length>=0)
return -1;
} else if (o2.isFile()) {
String name_a = o2.getName();
// System.out.println(name_a);
String o_z = name_a.substring(name_a.lastIndexOf("."));
//获取 name_a文件名字的后缀
int length=length(type_list,o_z);
if (length>=0)
return 1;
}
return 0;
}
});
}
private static int length(String a){
for (int i=0;i<type_list.length;i++){
if (type_list[i].equals(a)){
return i;
}
}
return -1;
}
private static int length(String[] sz,String a){
for (int i=0;i<sz.length;i++){
if (sz[i].equals(a)) {
return i;
}
}
return -1;
}
}