Dynamically read files from Sdcard

问题

Guys i have a text file in sdcard i need to read that file.

Below is my code to read files:

 File f = new File(Environment.getExternalStorageDirectory()+"/f1.txt");
       fileIS = new FileInputStream(f);
            BufferedReader buf = new BufferedReader(new InputStreamReader(fileIS));
           String readString = new String(); 
           //just reading each line and pass it on the debugger
           while((readString = buf.readLine())!= null){
              textdata.setText(readString);
              Log.d("line: ", readString);
           }
        } catch (FileNotFoundException e) {
           e.printStackTrace();
        } catch (IOException e){
           e.printStackTrace();
        }

But i need to read files from sdcard dynamically.

here i have given it as f1.txt

回答1:

Try this:

File f = new File(Environment.getExternalStorageDirectory().toString() + "/audio");
if (f.isDirectory())
{
    String files[] = f.list();
    for (int i = 0; i < files.length; i++)
    {
        Log.d("", files[i]);
    }
}

来源：https://stackoverflow.com/questions/9516335/dynamically-read-files-from-sdcard