Pegar o path de fotos que estão em gerenciadores de arquivos e não apenas na galeria.

Exemplo

public class BrowsePicture extends Activity {

    private static final int SELECT_PICTURE = 1;
    private String selectedImagePath;
    private String filemanagerstring;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        ((Button) findViewById(R.id.Button01)).setOnClickListener(new OnClickListener() {
            public void onClick(View arg0) {
                Intent intent = new Intent();
                intent.setType("image/*");
                intent.setAction(Intent.ACTION_GET_CONTENT);
                startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE);
            }
        });
    }

    //UPDATED
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            if (requestCode == SELECT_PICTURE) {
                Uri selectedImageUri = data.getData();
                filemanagerstring = selectedImageUri.getPath(); //OI FILE Manager
                selectedImagePath = getPath(selectedImageUri); //MEDIA GALLERY

                //NOW WE HAVE OUR WANTED STRING
                if(selectedImagePath!=null){
                    //"selectedImagePath is the right one for you!"
                }else{
                    //"filemanagerstring is the right one for you!"
                }
            }
        }
    }

    public String getPath(Uri uri) {
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        if(cursor!=null)
        {
            //HERE YOU WILL GET A NULLPOINTER IF CURSOR IS NULL. THIS CAN BE, IF YOU USED OI FILE MANAGER FOR PICKING THE MEDIA
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            return cursor.getString(column_index);
        }else{
        	return null;
        }
    }