Responsive Responsive Design at Peachpit Presents

Transcript

1. Responsive Responsive Design Building sites that are flexible and fast

   Peachpit Presents | January 16, 2014
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3. 20% in 5 days

4. 15% in 24 hours

5. 18% in 24 hours

6. Most popular in 3 days

7. 6 months. 681,900 Android devices. . . . . .

   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . source: http://opensignal.com/reports/fragmentation.php

8. Source: http://stephanierieger.com/the-trouble-with-android/

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10. “I want the entire smartphone, the entire internet, on my

    wrist.”
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16. @media [not|only] type [and] (expression) { ... }

17. @media only screen and (min-width: 400px) { ... }

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21. — Ethan Marcotte Now more than ever, we’re designing work

    meant to be viewed along a gradient of different experiences. Responsive web design offers us a way forward, finally allowing us to “design for the ebb and flow of things. http://alistapart.com/article/responsive-web-design
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26. — John Allsopp The control which designers know in the

    print medium, and often desire in the web medium, is simply a function of the limitation of the printed page. We should embrace the fact that the web doesn’t have the same constraints, and design for this flexibility. http://alistapart.com/article/dao

27. More than layout

28. Too good a job?

29. — Ethan Marcotte Now more than ever, we’re designing work

    meant to be viewed along a gradient of different experiences. Responsive web design offers us a way forward, finally allowing us to “design for the ebb and flow of things. gradient of different experiences http://alistapart.com/article/responsive-web-design

30. — Ethan Marcotte Now more than ever, we’re designing work

    meant to be viewed along a gradient of different experiences. Responsive web design offers us a way forward, finally allowing us to “design for the ebb and flow of things. gradient of different experiences http://alistapart.com/article/responsive-web-design

31. — Stephanie Rieger Shoot me now…responsive design has seemingly become

    confused with an opportunity to reduce performance rather than improve it. https://twitter.com/stephanierieger/status/245240465572642816
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33. 74 requests, 1511kb 114 requests, 1200kb 99 requests, 1298kb 105

    requests, 5942kb

34. http://www.guypo.com/uncategorized/real-world-rwd-performance-take-2/ 72% 22% 6% Much Smaller Slightly Smaller Same Size

35. http://www.guypo.com/uncategorized/real-world-rwd-performance-take-2/ 320x480 640x960 1024x768 1600x1200 0 200000 400000 600000 800000

    1000000 1200000 1400000

36. http://www.guypo.com/uncategorized/real-world-rwd-performance-take-2/ 320x480 640x960 1024x768 1600x1200 0 200000 400000 600000 800000

    1000000 1200000 1400000

37. Revenue

38. Revenue Traffic Conversions Satisfaction Page views

39. 71% as quickly or faster http://www.gomez.com/resources/whitepapers/survey-report-what-users-want-from-mobile

40. Performance is a fundamental component of User Experience

41. RWD is bad for performance!

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43. Blame the implementation, not the technique.

44. January 2012: 814.68kb January 2013: 1062.63kb http://www.stevesouders.com/blog/2013/04/05/page-weight-grows-24-year-over-year-not-44/

45. 30%

46. Performance needs to matter because it matters to users A

    culture of performance

47. — A friend I doubt anyone really wants to release

    a site that doesn't perform well, it's just a product of not being afforded the luxury of time and top-down pressure.

48. Set a performance budget

49. Must be usable in <= 10s 65kB - 100kB

50. 1. Optimize

51. 1. Optimize 2. Remove

52. 1. Optimize 2. Remove 3. Don’t Add

53. Channel your inner performance masochist Embrace the pain

54. Get real, early

55. — Brad Frost You can’t mock-up performance in Photoshop.

56. — Brad Frost You can’t mock-up performance in Photoshop.

57. Or: Why I cry myself to sleep at night Responsive

    Images

58. Compress any and all images Trim the fat

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60. Savings after compression 244.4 KB

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62. Don’t download things you don’t need Show not, waste note

63. display:none is useless

64. <div id="test1"> <img src="images/test1.png" alt="" /> </div> @media all and

    (max-width: 600px) { #test1 { display:none; } }

65. Everybody loads it anyway

66. <img class="lazyImg 4x3" data-include-size="medium" data-replace-src="/img/cat-in-hat.jpg" src="/img/4x3.png" />

67. for (var i = lazy.length - 1; i >= 0;

    i--) { ! var includeSize = lazy[i].getAttribute('data-include-size'); ! ! ! ! ! if (!includeSize) { ! ! return; ! } ! if (includeSize[j].trim() == MQ) { ! ! lazy.length[i].src = lazy.length[i].getAttribute('data- replace-src'); ! ! return; ! } }
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69. <div class="delayed-image-load" data-src="http://ichef.bbci.co.uk/news/200/ media/images/64664000/jpg/ 64664041_016703869.jpg" data-width="521" data-height="293"></div>

70. <div class="delayed-image-load" data-src="http://ichef.bbci.co.uk/news/200/ media/images/64664000/jpg/ 64664041_016703869.jpg" data-width="521" data-height="293"></div>

71. <div class="delayed-image-load" data-src="http://ichef.bbci.co.uk/news/200/ media/images/64664000/jpg/ 64664041_016703869.jpg" data-width="521" data-height="293"></div>

72. <div class="delayed-image-load" data-src="http://ichef.bbci.co.uk/news/200/ media/images/64664000/jpg/ 64664041_016703869.jpg" data-width="521" data-height="293"></div>

73. Make sure things are the right size and resolution Appropriate

    images

74. 72%

75. 255 values for red 255 values for green 255 values

    for blue 255 values for alpha

76. 600px

77. 550px

78. (600 x 600) - (550 x 550) 57,500 pixels

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80. <span data-picture data-alt="A giant stone face at The Bayon temple

    in Angkor Thom, Cambodia"> <span data-src="small.jpg"></span> <span data-src="medium.jpg" data-media="(min-width: 400px)"></span> <span data-src="large.jpg" data-media="(min-width: 800px)"></span> <span data-src="extralarge.jpg" data-media="(min-width: 1000px)"></span> <!-- Fallback content for non-JS browsers. Same img src as the initial, unqualified source element. --> <noscript> <img src="external/imgs/small.jpg" alt="A giant stone face at The Bayon temple in Angkor Thom, Cambodia"> </noscript> </span>

81. L.Q.I.P Low Quality Image Placeholders

82. <img src="dummy.400x300.jpg" alt="Responsive Image" data-fullsrc="dummy.800x600.jpg" />

83. Compressive Images AKA Black Magic

84. http://blog.netvlies.nl/design-interactie/retina-revolution/

85. SVG

86. <img src="image.svg" onerror="this.onerror=null; this.src='image.png'">

87. .main-header { background: url(logo.svg) no-repeat top left; background-size: contain; }

    .no-svg .main-header { background-image: url(logo.png); }

88. 1. Analyze

89. 1. Analyze 2. Big images first

90. (600 x 600) - (550 x 550) 57,500 pixels

91. (200 x 200) - (150 x 150) 17,500 pixels

92. 57,500 / 17,500 = 3.2x

93. 1. Analyze 2. Big images first 3. Know the trade-offs

94. Actually, not so sucky Background images

95. <div id="test3"> <div></div> </div> #test3 div { background-image:url('images/test3.png'); width:200px; height:75px;

    } @media all and (max-width: 600px) { #test3 { display:none; } }

96. <div id="test5"></div> @media all and (min-width: 601px) { #test5 {

    background-image:url('images/test5-desktop.png'); width:200px; height:75px; } } @media all and (max-width: 600px) { #test5 { background-image:url('images/test5-mobile.png'); width:200px; height:75px; } }

97. Load only what you need, when you need it Conditional

    loading

98. 1. Content https://speakerdeck.com/andyhume/anatomy-of-a-responsive-page-load-whiskyweb-ii

99. 1. Content https://speakerdeck.com/andyhume/anatomy-of-a-responsive-page-load-whiskyweb-ii 2. Enhancements

100. 1. Content https://speakerdeck.com/andyhume/anatomy-of-a-responsive-page-load-whiskyweb-ii 2. Enhancements 3. Leftovers

101. Cutting the mustard

102. if ('querySelector' in document ! && 'localStorage' in window !

     && 'addEventListener' in window) { ... }

103. http://bit.ly/RSrWVI

104. http://bit.ly/RSrWVI

105. http://bit.ly/RSrWVI

106. globe.enhanced = ( ! respond.mediaQueriesSupported ! || globe.browser.ie6 ! ||

     globe.browser.ie7 ! || globe.browser.ie8 )
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110. <h2> <a data-target="reviews" href="reviews.html">Reviews</a> </h2>

111. anchorInclude : function ( elem ) { var url =

     elem.getAttribute('href'); var target = document.getElementById( elem.getAttribute('data-target') ); reqwest(url, function (resp) { target.innerHTML = resp; }); }

112. <a href="..." data-replace="articles/latest/fragment">Latest Articles</a> <a href="..." data-before="articles/latest/fragment">Latest Articles</a> <a href="..."

     data-after="articles/latest/fragment">Latest Articles</a> <a href="..." data-append="articles/latest/fragment">Latest Articles</a>

113. $("[data-append],[data-replace],[data-after], [data-before]").ajaxInclude();

114. No AJAX, no problem

115. <div data-lazy-content="more_puppies" aria- live="polite"> <!-- <p>You clicked for more puppies!

     Here you go:</p> <img src="puppy.jpg" alt="Lazy loaded puppy image" /> --> </div>

116. var toShow = document.querySelectorAll('[data-lazy-content=' + item.getAttribute('[data-lazy-reveal]') + ']'; for (var

     j = toShow.length - 1; j >= 0; j--) { ! var children = toShow[j].childNodes; ! for (var k = children.length - 1; k >= 0; k--) { ! ! var child = children[k]; ! ! if (child.nodeType === 8) { ! ! ! //it's a comment ! ! ! toShow[j].innerHTML = child.nodeValue; ! ! ! break; ! ! } ! } }

117. What about CSS?

118. Embedded a { ! text-decoration: none; } @media screen and

     (min-width: 1300px) { ! a { ! ! text-decoration: underline; ! } }

119. External <link href="style.css" media="only screen and (min-width: 1300px)" />

120. All styles downloaded

121. http://scottjehl.github.com/CSS-Download-Tests/

122. <link rel="stylesheet" href="style.css" media="seriously please do not download this what

     is the matter with you why won’t you listen" />
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124. Chrome 26 Safari 6.0.2 iOS Safari 6.1 Android 4.2.1 Android

     4.2.1 Chrome 18 Android 4.2.1 Chrome 18 Android 4.2.1 Opera Mini Yay!

125. Internet Explorer 10 Internet Explorer 9 Internet Explorer 8 Firefox

     20 Opera 12.15 Android 4.2.1 Opera Mobile Nooooo!

126. https://twitter.com/ppk/status/249100988693241856

127. jQuery = 200-300ms based on 1.8.0 http://jsperf.com/zepto-jq-eval

128. Up to 8s!

129. Custom jQuery builds

130. Everything has a trade-off

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132. What value does this provide?

133. Don’t worry about JS size. Just include one less image.

134. Don’t worry about JS size and Just include one less

     image.

135. Time to move beyond visual aesthetics

136. This may not be easy...

137. ...but man is it fun!

138. thank you! @tkadlec timkadlec.com TIM KADLEC

139. implementingresponsivedesign.com peachpit.com/deals