Add Camera Sample

Camera/README

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+Camera.app
+
+This sample demonstrates the following concepts: UIImagePickerController.

Camera/Rakefile

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+# coding: utf-8
+$:.unshift("/Library/RubyMotion/lib")
+require 'motion/project'
+
+Motion::Project::App.setup do |app|
+  # Use `rake config' to see complete project settings.
+  app.name = 'Camera'
+  app.info_plist['UIStatusBarHidden'] = true
+end

Camera/app/app_delegate.rb

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+class AppDelegate
+  def application(application, didFinishLaunchingWithOptions:launchOptions)
+    @window = UIWindow.alloc.initWithFrame(UIScreen.mainScreen.applicationFrame)
+    @window.rootViewController = CameraViewController.alloc.init
+    @window.rootViewController.wantsFullScreenLayout = true
+    @window.makeKeyAndVisible
+    true
+  end
+end

Camera/app/camera_view_controller.rb

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+class CameraViewController < UIViewController
+  INVALID_LABEL_WIDTH   = 260
+  INVALID_LABEL_HEIGHT  = 40
+  INVALID_LABEL_POS_X   = (UIScreen.mainScreen.bounds.size.width - INVALID_LABEL_WIDTH) / 2
+  INVALID_LABEL_POS_Y   = (UIScreen.mainScreen.bounds.size.height - INVALID_LABEL_HEIGHT) / 2
+
+  FIRE_BUTTON_MARGIN = 5
+  FIRE_BUTTON_WIDTH = 320
+  FIRE_BUTTON_HEIGHT = 44
+  FIRE_BUTTON_POS_X   = 0
+  FIRE_BUTTON_POS_Y   = UIScreen.mainScreen.bounds.size.height - FIRE_BUTTON_HEIGHT - FIRE_BUTTON_MARGIN
+
+  def viewDidLoad
+    self.view.backgroundColor = UIColor.blackColor
+  end
+
+  def viewDidAppear(animated)
+    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceTypeCamera)
+      @ipc = UIImagePickerController.alloc.init
+      @ipc.delegate = self
+      @ipc.sourceType = UIImagePickerControllerSourceTypeCamera
+      @ipc.allowsEditing = false
+      @ipc.showsCameraControls = false
+      @ipc.view.addSubview(fire_button)
+      self.presentModalViewController(@ipc, animated: true)
+    else
+      make_invalid_screen
+    end
+  end
+
+  def make_invalid_screen
+    invalid_label = UILabel.new.tap do |label|
+      label.text = 'The device can not use camera'
+      label.textColor = UIColor.whiteColor
+      label.backgroundColor = UIColor.blackColor
+      label.frame = [[INVALID_LABEL_POS_X, INVALID_LABEL_POS_Y],
+                     [INVALID_LABEL_WIDTH, INVALID_LABEL_HEIGHT]]
+    end
+    self.view.addSubview(invalid_label)
+  end
+
+  def fire_button
+    button = UIButton.buttonWithType(UIButtonTypeRoundedRect)
+    button.setTitle("Take picture", forState: UIControlStateNormal)
+    button.frame = [[FIRE_BUTTON_POS_X, FIRE_BUTTON_POS_Y],
+                    [FIRE_BUTTON_WIDTH, FIRE_BUTTON_HEIGHT]]
+    button.addTarget(self, action:'take_picture', forControlEvents:UIControlEventTouchUpInside)
+  end
+
+  def take_picture
+    @ipc.takePicture
+  end
+
+  def imagePickerController(picker, didFinishPickingMediaWithInfo:info)
+    imageToSave = info.objectForKey UIImagePickerControllerOriginalImage
+    UIImageWriteToSavedPhotosAlbum(imageToSave, nil, nil, nil)
+  end
+end