Add keyevent method

Author: DylanLacey

android_tests/lib/android/specs/common/device.rb

@@ -64,6 +64,10 @@
     act.class.must_equal Selenium::WebDriver::Element
   end
 
+  t 'keyevent' do
+    keyevent key: 176
+  end 
+
   t 'action_chain' do
     e = find_element(:name, "Accessibility")
     Appium::TouchAction.new.press(:element => e, x: 0.5, y: 0.5).release(:element => e).perform

lib/appium_lib/device/device.rb

@@ -62,6 +62,11 @@ module Device
     #  hide_keyboard('Finished') # Close a keyboard with the 'Finished' button
     #  ```
 
+    # @!method key_event
+    # Send a key event to the device.
+    # @param key (integer) The key to send.
+    # @param metastate (String) The state the metakeys should be in when sending the key.
+
     # @!method push_file
     #   Place a file in a specific location on the device.
     #   @param path (String) The absolute path on the device to store data at.
@@ -126,6 +131,14 @@ def hide_keyboard(close_key='Done')
           end
         end
 
+        add_endpoint_method(:key_event, 'session/:session_id/appium/device/keyevent') do
+          def key_event(key, metastate=nil)
+            args = {keycode: key}
+            args[:metastate] = metastate if metastate
+            execute :key_event, {}, args
+          end
+        end
+
         add_endpoint_method(:complex_find, 'session/:session_id/appium/app/complex_find') do
           def complex_find(all, selectors=nil)
             if selectors.nil?