Android how to use Environment.getExternalStorageDirectory()

Question

How can i use Environment.getExternalStorageDirectory() to read a a stored image from the SD card or is there a better way to do it?

Answer 1

Environment.getExternalStorageDirectory().getAbsolutePath() 

Gives you the full path the SDCard. You can then do normal File I/O operations using standard Java.

Here's a simple example for writing a file:

String baseDir = Environment.getExternalStorageDirectory().getAbsolutePath(); String fileName = "myFile.txt";  // Not sure if the / is on the path or not File f = new File(baseDir + File.separator + fileName); f.write(...); f.flush(); f.close(); 

Edit:

Oops - you wanted an example for reading ...

String baseDir = Environment.getExternalStorageDirectory().getAbsolutePath(); String fileName = "myFile.txt";  // Not sure if the / is on the path or not File f = new File(baseDir + File.Separator + fileName); FileInputStream fiStream = new FileInputStream(f);  byte[] bytes;  // You might not get the whole file, lookup File I/O examples for Java fiStream.read(bytes);  fiStream.close();