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Diffstat (limited to 'docs/html/design')
| -rw-r--r-- | docs/html/design/tv/images/apps-games-rows.png | bin | 1083537 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/images/atv-home.png | bin | 2492651 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/images/atv.png | bin | 58390 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/images/overscan.png | bin | 113172 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/images/recommendations.png | bin | 1659170 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/images/search.png | bin | 41014 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/images/settings.png | bin | 188071 -> 0 bytes | |||
| -rw-r--r-- | docs/html/design/tv/patterns.jd | 100 | ||||
| -rw-r--r-- | docs/html/design/tv/principles.jd | 45 | ||||
| -rw-r--r-- | docs/html/design/tv/style.jd | 108 | ||||
| -rw-r--r-- | docs/html/design/tv/ui-overview.jd | 63 |
11 files changed, 0 insertions, 316 deletions
diff --git a/docs/html/design/tv/images/apps-games-rows.png b/docs/html/design/tv/images/apps-games-rows.png Binary files differdeleted file mode 100644 index 1724147..0000000 --- a/docs/html/design/tv/images/apps-games-rows.png +++ /dev/null diff --git a/docs/html/design/tv/images/atv-home.png b/docs/html/design/tv/images/atv-home.png Binary files differdeleted file mode 100644 index 2c18827..0000000 --- a/docs/html/design/tv/images/atv-home.png +++ /dev/null diff --git a/docs/html/design/tv/images/atv.png b/docs/html/design/tv/images/atv.png Binary files differdeleted file mode 100644 index cd96164..0000000 --- a/docs/html/design/tv/images/atv.png +++ /dev/null diff --git a/docs/html/design/tv/images/overscan.png b/docs/html/design/tv/images/overscan.png Binary files differdeleted file mode 100644 index bf08dd8..0000000 --- a/docs/html/design/tv/images/overscan.png +++ /dev/null diff --git a/docs/html/design/tv/images/recommendations.png b/docs/html/design/tv/images/recommendations.png Binary files differdeleted file mode 100644 index 579b390..0000000 --- a/docs/html/design/tv/images/recommendations.png +++ /dev/null diff --git a/docs/html/design/tv/images/search.png b/docs/html/design/tv/images/search.png Binary files differdeleted file mode 100644 index be0d778..0000000 --- a/docs/html/design/tv/images/search.png +++ /dev/null diff --git a/docs/html/design/tv/images/settings.png b/docs/html/design/tv/images/settings.png Binary files differdeleted file mode 100644 index f9f45fa..0000000 --- a/docs/html/design/tv/images/settings.png +++ /dev/null diff --git a/docs/html/design/tv/patterns.jd b/docs/html/design/tv/patterns.jd deleted file mode 100644 index c8cc0b0..0000000 --- a/docs/html/design/tv/patterns.jd +++ /dev/null @@ -1,100 +0,0 @@ -page.title=Patterns for TV -page.tags="design" -@jd:body - -<p>As a developer of apps for TV, you should follow certain patterns to enable users to - quickly understand and efficiently your app. This section describes recommended design patterns - for TV apps.</p> - -<h2>Navigation</h2> - -<p>Users typically navigate TV devices using a directional pad (D-Pad). This type of controller - limits movement to up, down, left, and right. In a typical D-Pad remote, hardware keys that - correspond to those directions are present and an additional action key is available to make a - selection. As you design your Android application for TVs, pay special attention to how users - navigate your application when using a remote control instead of a touchscreen.</p> - -<p>[add visual: D-Pad image or illustration]</p> - -<p>A key aspect of making your application work well with a D-Pad controller is to make sure - that there is always a object that is obviously in focus. If a user cannot see what is in focus, - they will not be able to navigate your app intuitively with this type of controller.</p> - -<p>Optimize your app screen layouts for D-Pad navigation. Align objects in your app lists and - grids to make navigation within each screen intuitive. Design your layout so it takes advantage of - two-axis navigation.</p> - - -<h2>Home and Back Buttons</h2> - -<p> - In addition to the D-Pad buttons, Android TV devices always include Home and Back buttons on their - controllers. Make sure the Back button functions within your app in a way that is consistent with - the general <a href="{@docRoot}design/patterns/navigation.html">Android Design guidelines</a>. -</p> - - -<h2>Focus and Selection</h2> - -<p>Providing good focus and selection indicators is key to making your app useable on TV. As - mentioned previously, making sure that an object is always selected in your app is critical for - effective navigation using a D-Pad. This requirement also means that you must use focus indicators - that are easy to recognize and should be consistent throughout your app.</p> - -<p> - [add visual of selected item on screen] -</p> - -<p>The default focus indicator used in Android TV use a combination of scale, shadow, - brightness, and opacity. The focus feedback is enhanced by displaying an animation going from a - non-focused to a focused state and back. Instead of immediately applying the focus transformation, - it is animated into place to reduce abrupt changes and help users notice how the object changed.</p> - -<h2>Audio Feedback</h2> - -<p>Sounds on Android TV bring a cinematic quality to the interaction experience. You should - consider adding sounds for user actions or to provide feedback when a user is only partially - visually engaged with the screen (e.g., because they have their hands full or are multitasking). - You should also consider using sounds as alternatives to error messages, for example to indicate - that a user has reached the end of a list or is trying to navigate to an undefined location.</p> - -<h2>Banners</h2> - -<p> - App Banners represent your app on the home screen of TV devices and serves and as a way for - users to launch your app. Here are specific requirements for the banner image: -</p> - -<ul> - <li>Size: 320 x 180 px, xhdpi resource</li> - <li>Text should be included in the image. If your app is available in more than one - language, you must provide version of the banner image for each supported language.</li> -</ul> - - -<h2>App Icons</h2> - -<p>The app icon is shown in recommendation cards on the Home screen, search results and the main - Browse screen of your app if you use {@code BrowseFragment}. Here are the specific - requirements for the app icon:</p> - -<ul> - <li><p>Full color: size: 52x52dp, PNG</p></li> - <li><p>Monocolor: size 52x52dp, white(#fff) icon with transparent background, PNG</p></li> -</ul> - - -<h2>Background Images</h2> - -<p>Background images are displayed in the background of your app to provide additional visual - interest, information or branding. The BrowseFragment and DetailsFragment classes in the Leanback - support library provide specific support for background images and updating them as items are - brought into and out of focus. Here are the specific requirements for background images:</p> - -<ul> - <li>2016x1134 (1920x1080 + 5% extra margin for motion)</li> -</ul> - -<p> - <strong>Note:</strong> If the image does not meet this requirement, it is scaled to fit. -</p>
\ No newline at end of file diff --git a/docs/html/design/tv/principles.jd b/docs/html/design/tv/principles.jd deleted file mode 100644 index 5c0ce10..0000000 --- a/docs/html/design/tv/principles.jd +++ /dev/null @@ -1,45 +0,0 @@ -page.title=Design Principles for TV -@jd:body - -<p>Users bring a specific set of expectations to the experience of watching TV, versus - interacting with a phone or tablet. These principles have been developed by the Android User - Experience Team to guide creation of the Android TV platform and the apps that run on it.</p> - -<h2>Casual Consumption</h2> - -<p>The TV is an entertainment interface, not a computer or mobile device. Optimize for - activities that put content at the center: from the casual posture of movie-watching, to - edge-of-seat, immersive gameplay, to hanging out with friends in a living room.</p> - -<p>Users expect immediate access to to content when they turn on a TV. Get users into the action - fast, be it the big game, their favorite show, or a game with friends. The next piece of content - to watch or play should only be a click or two away.</p> - -<p> - [add a visual] -</p> - - -<h2>Cinematic Experience</h2> - -<p>Create immersive experiences for the user. Design for as little user interface and as much - content as possible on each screen. Use visual imagery, movement and sound to inform and delight - users. Avoid using on-screen text to convey information and purpose. Tell your story with pictures - and sound.</p> - -<p> - [add a visual] -</p> - - -<h2>Simplicity</h2> - -<p>An Android TV should be simple and magical. It’s all about finding and enjoying content and - apps with the least amount of friction. Minimize the number of navigation steps required to - perform actions. Build apps with the fewest screens possible between app entry and content - immersion. Avoid making users enter text whenever possible, and use voice interfaces when you - require text input.</p> - -<p> - [add a visual] -</p> diff --git a/docs/html/design/tv/style.jd b/docs/html/design/tv/style.jd deleted file mode 100644 index 479ed91..0000000 --- a/docs/html/design/tv/style.jd +++ /dev/null @@ -1,108 +0,0 @@ -page.title=Style for TV -page.tags="design" -@jd:body - - -<p>Follow these style guidelines to create beautiful, functional apps for TV.</p> - - -<h2>Layouts</h2> - -<p>The difference between a TV experience that feels right and one that does not greatly depends - on the number, spacing and size of on-screen elements. Although TV sizes and resolutions have - steadily increased over time, users expect TV experiences to be relatively simple and - uncluttered.</p> - -<p>The additional resolution and screen area afforded by modern displays is best used to display - things at better quality, rather than greater quantity. For example, use your layouts to show - large, beautiful pieces of content, or resize type for both easy reading and generous spacing.</p> - -<p>If you are creating an app for browsing and playing content, use the prebuilt fragments in the - Leanback support library. These layouts have been built specifically for use on TV devices with - the guidance of the Android User Experience team. For more information on using these classes, - see the <a href="{@docRoot}preview/tv/build-ui/index.html">User Interfaces</a> guide. -</p> - -<p>Here are some additional recommendations for creating functional and attractive layout for TV - apps:</p> - -<ul> - <li><p>Build layouts designed for landscape orientation. TV screens always use in this - orientation.</p></li> - <li><p>Put on-screen navigational controls on the left or right side of the screen and - save the vertical space for content.</p></li> - <li><p>Create UIs that are divided into sections, by using Fragments and use view groups - like GridView instead of ListView to make better use of the horizontal screen space.</p></li> - <li><p>Add sufficient margins between layout controls to avoid a cluttered interface.</p></li> -</ul> - - -<h3>Screen Size</h3> - -<p>TV devices running Android are intended to operate at HD resolution (1920 x 1080 pixels) or - higher. Design your artwork assets for best viewing at this resolution.</p> - - -<h3>Overscan</h3> - -<p>During the evolution of TV technology, overscan originally described an area of TV content - outside of a safe zone that most TVs could reliably display. Even on some of today’s HDTV flat - screens, areas outside that zone may not be visible.</p> - -<img src="{@docRoot}design/tv/images/overscan.png" alt="image alt text" /> - -<p>Build a 10% margin into your TV screen designs to account for overscan area the TV may not - display correctly. On a 1920 x 1080 pixel screen, this margin should be a minimum of 27px from the - top and bottom edges and a minimum of 48px from the right and left edges of the picture.</p> - - -<h2>Color</h2> - -<p>Color rendering on televisions can be imprecise compared to computer monitors or mobile - devices. LCD and Plasma TVs often apply smoothing and sharpening filters, and color rendering may - not match what you see on a computer screen.</p> - -<p>Subtle hue or brightness differences between elements may disappear or be over-emphasized on - TV screens. Some color gradient combinations will show bands. You should avoid pure whites and - highly saturated colors in large areas of the screen (especially reds, greens and blues). You - should also avoid using very dark or muddy colors, as TV settings may display these colors with - exaggerated contrast, causing them to be indistinguishable.</p> - - -<h2>Typography</h2> - -<p>The text and controls in a TV application's UI should be easily visible and navigable from a - distance. The minimum recommended font size for TV is 12sp. The default text size setting should - be 18sp. We recommend the following guidelines for TV apps:</p> - -<ul> - <li>Browse Titles: Regular 44sp</li> - <li>Browse Menu Category Text: 20sp at 50% transparency</li> - <li>Browse Focused Menu Category Text: 24sp with no transparency</li> - <li>Row Category Titles focused: 20sp with no transparency</li> - <li>Row Category Titles focused: 20sp at 50% transparency</li> - <li>Details Content Titles: 34sp</li> - <li>Details Subtext: 14sp</li> -</ul> - -<p>[visual showing text on a TV screen (sidebar position)]</p> - -<p>Some TVs have strong sharpness and contrast settings as their defaults. These picture - settings make thin and light typefaces look jagged and make the text difficult for people to read. - Therefore you should avoid thin or light typefaces on TV.</p> - -<h2>Text</h2> - -<p>Use text in TV apps sparingly. The position of users relative to a TV screen - (typically about 10 away) makes it harder for users to read text and the expectation of users in a - TV environment not conducive to reading. Follow these tips for the best handling of text in your - app:</p> - -<ul> - <li>Break text into small chunks that users can quickly scan.</li> - <li>Use light text on a dark background. This style is easier to read on a TV.</li> - <li>Avoid lightweight fonts or fonts that have both very narrow and very broad - strokes. Use simple sans-serif fonts and use anti-aliasing to increase readability.</li> - <li>Use layout-relative sizing rather than absolute sizing and density-independent - pixel units instead of absolute pixel units.</li> -</ul>
\ No newline at end of file diff --git a/docs/html/design/tv/ui-overview.jd b/docs/html/design/tv/ui-overview.jd deleted file mode 100644 index c58c9cd..0000000 --- a/docs/html/design/tv/ui-overview.jd +++ /dev/null @@ -1,63 +0,0 @@ -page.title=UI Overview for TV -page.tags="design" -@jd:body - -<p>The Android TV system user interface provides the launch pad for your app's big screen - experience. It's important to understand how your app is presented in the main user interface and - how your app can help users get to the content they want quickly, including contributing content - suggestions to the recommendations row.</p> - -<p>This section provides quick overview of the Android TV user interface.</p> - - -<h2>Home Screen</h2> - -<p>The Home Screen is the start of a TV user's experience, providing search, content - recommendations, access to apps and settings. The Home Screen provides a rich and cinematic - overview of apps and content.</p> - -<img src="{@docRoot}design/tv/images/atv-home.png" alt="TV Home screen" /> - - -<h2>Search</h2> - -<p>By bringing the power of Google search to the big screen, Android TV makes new, dynamic - connections between content - a favorite movie may connect to the discovery of a new music artist, - planning trip to Paris might surface new YouTube content and photos.</p> - -<img src="{@docRoot}design/tv/images/search.png" alt="Recommendations Row" /> - - -<h2>Recommendations</h2> - -<p>The recommendation row on Android TV is a central feature of the Home Screen that allows - users quick access to dynamic and relevant content for their media consumption activities. The - stream is optimized for quick browsing of personalized content and activity resumption (on the - device and across devices), while also providing a way for users to act on meaningful new content.</p> - -<img src="{@docRoot}design/tv/images/recommendations.png" alt="Recommendations Row" /> - -<p> - The recommendations are based on the user’s recent and frequent usage behaviors, as well as - expressed content preferences. They are presented as cards that represent a system or app action, - notification, activity, or piece of actionable media. Your app can provide suggestions for the - recommendations row to help get your content noticed. To learn more, see - <a href="{@docRoot}preview/tv/build-ui/recommendations.html">Recommendations</a>. -</p> - - -<h2>Apps and Games</h2> - -<p>Apps and Games rows both have special areas on the Home Screen. Within these respective - areas, Apps and Games titles are reordered to reflect the user’s recent usage.</p> - -<img src="{@docRoot}design/tv/images/apps-games-rows.png" alt="Apps and Games Rows" /> - - -<h2>Settings</h2> - -<p>Access to Settings is found at the bottom of the Home Screen. From here, the user can access - Android and device-specific settings. Please see the "Settings" section for more detailed - information.</p> - -<img src="{@docRoot}design/tv/images/settings.png" alt="Settings Row" /> |
