added PullFolder

Author: Jonahss

src/main/java/io/appium/java_client/AppiumDriver.java

@@ -176,6 +176,20 @@ public void pushFile(String remotePath, byte[] base64Data) {
     execute(PUSH_FILE, builder.build());
   }
 
+  /**
+   * Pull a folder from the simulator/device. Does not work on iOS Real Devices, but works on simulators
+   *
+   * @param remotePath On Android and iOS, this is either the path to the file (relative to the root of the app's file system).
+   *                   On iOS only, if path starts with /AppName.app, which will be replaced with the application's .app directory
+   * @return A byte array of Base64 encoded data, representing a ZIP ARCHIVE of the contents of the requested folder.
+   */
+  public byte[] pullFolder(String remotePath) {
+    Response response = execute(PULL_FILE, ImmutableMap.of("path", remotePath));
+    String base64String = response.getValue().toString();
+
+    return DatatypeConverter.parseBase64Binary(base64String);
+  }
+
   /**
    * Hides the keyboard if it is showing.
    * This is an iOS only command.

src/main/java/io/appium/java_client/MobileCommand.java

@@ -31,6 +31,7 @@ public interface MobileCommand {
   String SET_VALUE = "setValue";
   String PULL_FILE = "pullFile";
   String PUSH_FILE = "pushFile";
+  String PULL_FOLDER = "pullFolder";
   String HIDE_KEYBOARD = "hideKeyboard";
   String RUN_APP_IN_BACKGROUND = "runAppInBackground";
   String PERFORM_TOUCH_ACTION = "performTouchAction";