点击拍照或从相册获取照片

motion_shoot.rb

  # 需要加入BubbleWrap和Sugarcube 的Gem
  def shoot
    UIActionSheet.alert('', buttons: [nil, nil, '马上拍一张', '从手机相册选择', '返回']) do |pressed|
      case pressed
      when '马上拍一张'
        BW::Device.camera.rear.picture(media_types: [:movie, :image]) do |result|
          set_photo(result[:original_image])
        end
      when '从手机相册选择'
        BW::Device.camera.any.picture(media_types: [:movie, :image]) do |result|
          set_photo(result[:original_image])
        end
      end
    end
  end

  def set_photo(photo)
      return if photo.nil?
      @photo   = photo.scale_to_fill([800,800])
      @small   = photo.scale_to_fill([80,80])
      @shoot_btn.setImage(@small, forState:UIControlStateNormal)
  end