android - 从android的内部存储中删除文件夹？

Question

如何从内部存储中删除文件夹(包含一些文件夹和文件)？文件夹在树下有一些。

folder
|_________  C2 (folder)
             |________1 (folder)
                      |________1.gif
                      |________2.gif
                      |________3.gif
                      |________4.gif
             |________2 (folder)
                      |________1.gif
                      |________2.gif
                      |________3.gif
                      |________4.gif
             |________3 (folder)
                      |________1.gif
                      |________2.gif
                      |________3.gif
                      |________4.gif
             |________4 (folder)
                      |________1.gif
                      |________2.gif
                      |________3.gif
                      |________4.gif
             |________5 (folder)
                      |________1.gif
                      |________2.gif
                      |________3.gif
                      |________4.gif

|_________  C2.xml (file)

我想删除包含所有文件的文件夹

fil.delete();

System.out.println("boolean =>" + fil.delete());

但上面的代码显示为假。请帮忙。

Answer 1

看看这个。

public void deleteRecursive(File fileOrDirectory) {

   if (fileOrDirectory.isDirectory()) {
       for (File child : fileOrDirectory.listFiles()) {
          deleteRecursive(child);
       }
   }

   fileOrDirectory.delete();
 }

解释How to delete a whole folder and content?