Action file problem on SD card in Android Create directory create file to specified directory

Steps

1

Get the path to the SD card

File root =environment.getexternalstoragedirectory ();

2

Determine the path to the file to be written

String path =root.getabsolutepath () + "/test2" + "/TEST3";

3

and turn the path into file.

File file =new file (path);

4 Creating a Directory

File.mkdir ();

5 write the specified file in the specified directory above

File File1 = new file (file, "Test.png");

Be sure to pay attention to the difference between path and file, and must first build the directory, write the file

Action file problem on SD card in Android Create directory create file to specified directory