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Material Design from Concept to Implementation Xamarin Android Fanboys @jeremie_laval | @JamesMontemagno Jérémie Laval | James Montemagno

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Developers that adopt Material Design now will be leaps and bounds ahead of the competition when Android L releases. Andy Chief Android Mascot

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Material Design Material is a metaphor Bold, graphic, intentional Motion provides meaning

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Demo

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GUIDELINES – DO NOT USE SLIDE Material Theme

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Material Theme ■ Theme.Material ■ Theme.Material.Light ■ Theme.Material.Light.DarkActionBar Beautiful new styles

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GUIDELINES – DO NOT USE SLIDE

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Theming Your App ■ Three Colors ■ Primary Dark ■ Primary (Brand Color) ■ Accent Color Easier than ever

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UI Color Palette Primary and Accent Colors

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Theming Your App New attributes 
 <!-- Main theme colors -->
 <!-- your app's branding color (for the app bar) -->
 <item name="android:colorPrimary">@color/xam_blue</item>
 <!-- darker variant of colorPrimary -->
 <item name="android:colorPrimaryDark">@color/xam_dark_blue</item>
 <!-- theme UI controls like checkboxes and text fields -->
 <item name="android:colorAccent">@color/xam_purple</item>
 


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GUIDELINES – DO NOT USE SLIDE

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Bring Your UI to Life Mixing images with color

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Palette ■ Vibrant ■ Vibrant dark ■ Vibrant light ■ Muted ■ Muted dark ■ Muted light Generate Color Palette Automatically https://www.nuget.org/packages/Xamarin.Android.Support.v7.Palette/

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Demo

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Layout & Typography

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Print Design

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Baseline Grid

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Roboto

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Typographic Scale ?android/ TextAppearance.Material.*

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Keylines

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Demo

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GUIDELINES – DO NOT USE SLIDE Paper Craft

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Paper Craft

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Shadow Casting

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Seams

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Steps

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Demo

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End of Part I Xamarin Android Fanboys @jeremie_laval | @JamesMontemagno Jérémie Laval | James Montemagno

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Material Design from Concept to Implementation Xamarin Android Fanboys @jeremie_laval | @JamesMontemagno Jérémie Laval | James Montemagno

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Material Design Material is a metaphor Bold, graphic, intentional Motion provides meaning

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GUIDELINES – DO NOT USE SLIDE Motion

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Touch Feedback Ripple Ink Response Radial Actions

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Demo

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Transitions Activity Transitions Circle Reveal Curved Motion

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Demo

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GUIDELINES – DO NOT USE SLIDE

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Card View

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Theming Your App Frame View https://www.nuget.org/packages/Xamarin.Android.Support.v7.CardView/

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public override View GetView (int position, View convertView, ViewGroup parent)
 {
 MyViewHolder holder;
 var view = convertView;
 if (view != null)
 holder = view.Tag as MyViewHolder;
 if (holder == null) {
 holder = new MyViewHolder ();
 view = activity.LayoutInflater.Inflate (Resource.Layout.OptimizedItem, null);
 holder.Name = view.FindViewById (Resource.Id.textView1);
 holder.Description = view.FindViewById (Resource.Id.textView2);
 holder.Image = view.FindViewById (Resource.Id.imageView);
 view.Tag = holder;
 }
 holder.Name.Text = Names [position];
 holder.Description.Text = Descriptions [position];
 holder.Image.SetImageResource (Names [position].ToLower().Contains ("xamarin") ?
 Resource.Drawable.hexagongreen :
 Resource.Drawable.hexagopurple);
 return view;
 }


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RecyclerView Super ListView ■ Auto ViewHolder Recycling ■ Built-in Animations https://www.nuget.org/packages/Xamarin.Android.Support.v7.RecyclerView/

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Compatibility ■ Material Theme - Only available in Android L • Define theme that inherits from older theme (like Holo) in res/ values/styles.xml • Set them as your app’s theme in manifest file New APIs ■ Layouts - Do not use new XML attributes from Android L in pervious versions. - Provide alternative layouts • Android L Layouts: res/layout-v21 • Alternative: res/layout • Modify the style in res/values-v21 for new APIs

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Compatibility ■ Only available in Android L - Activity Transition - Touch feedback - Reveal - Path-based animations ■ Wrap code in version check Animations

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Compatibility ■ Recycler View ■ Palette - Both are available back to v7 - Exposed via support library UI Widgets ■ CardView - Available back to v7 - Exposed as Support Library - Limitations (pre-L) - Uses programatic shadows - Does not clip children that intersect with rounded corners

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Distributing Material Design ⏰ Not yet

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google.com/design/spec

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The End! Xamarin Android Fanboys @jeremie_laval | @JamesMontemagno Jérémie Laval | James Montemagno