{"id":986,"date":"2015-03-18T17:09:41","date_gmt":"2015-03-18T09:09:41","guid":{"rendered":"http:\/\/www.daliane.com\/?p=986"},"modified":"2015-03-18T17:09:41","modified_gmt":"2015-03-18T09:09:41","slug":"html5_kai_fa_zhi_viewport_shi_yong","status":"publish","type":"post","link":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/html5_kai_fa_zhi_viewport_shi_yong\/","title":{"rendered":"html5\u5f00\u53d1\u4e4bviewport\u4f7f\u7528"},"content":{"rendered":"
\u968f\u7740\u9ad8\u7aef\u624b\u673a(Andriod,Iphone,Ipod,WinPhone\u7b49)\u7684\u76db\u884c\uff0c\u79fb\u52a8\u4e92\u8054\u5e94\u7528\u5f00\u53d1\u4e5f\u8d8a\u6765\u8d8a\u53d7\u5230\u4eba\u4eec\u7684\u91cd\u89c6\uff0c\u7528html5\u5f00\u53d1\u79fb\u52a8\u5e94\u7528\u662f\u6700\u597d\u7684\u9009\u62e9\u3002\u7136\u800c\uff0c\u6bcf\u4e00\u6b3e\u624b\u673a\u6709\u4e0d\u540c\u7684\u5206\u8fa8\u7387\uff0c\u4e0d\u540c\u5c4f\u5e55\u5927\u5c0f\uff0c\u5982\u4f55\u4f7f\u6211\u4eec\u5f00\u53d1\u51fa\u6765\u7684\u5e94\u7528\u6216…<\/div>\n
\n
<\/div>\n

 <\/p>\n

\u968f\u7740\u9ad8\u7aef\u624b\u673a(Andriod,Iphone,Ipod,WinPhone\u7b49)\u7684\u76db\u884c\uff0c\u79fb\u52a8\u4e92\u8054\u5e94\u7528\u5f00\u53d1\u4e5f\u8d8a\u6765\u8d8a\u53d7\u5230\u4eba\u4eec\u7684\u91cd\u89c6\uff0c\u7528html5\u5f00\u53d1\u79fb\u52a8\u5e94\u7528\u662f\u6700\u597d\u7684\u9009\u62e9\u3002\u7136\u800c\uff0c\u6bcf\u4e00\u6b3e\u624b\u673a\u6709\u4e0d\u540c\u7684\u5206\u8fa8\u7387\uff0c\u4e0d\u540c\u5c4f\u5e55\u5927\u5c0f\uff0c\u5982\u4f55\u4f7f\u6211\u4eec\u5f00\u53d1\u51fa\u6765\u7684\u5e94\u7528\u6216\u9875\u9762\u5927\u5c0f\u80fd\u9002\u5408\u5404\u79cd\u9ad8\u7aef\u624b\u673a\u4f7f\u7528\u5462\uff1f\u5b66\u4e60html5 viewport\u7684\u4f7f\u7528\u80fd\u5e2e\u4f60\u505a\u5230\u8fd9\u4e00\u70b9\u2026\u2026<\/h4>\n

viewport \u8bed\u6cd5\u4ecb\u7ecd\uff1a<\/h4>\n
\n
\n
\n\n\n\n
01<\/td>\n<!– html document –><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
02<\/td>\n<meta\u00a0name=”viewport”<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
03<\/td>\n\u00a0\u00a0\u00a0\u00a0content=”<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
04<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0height = [pixel_value | device-height] ,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
05<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0width = [pixel_value | device-width ] ,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
06<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0initial-scale\u00a0=\u00a0float_value\u00a0,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
07<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0minimum-scale\u00a0=\u00a0float_value\u00a0,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
08<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0maximum-scale\u00a0=\u00a0float_value\u00a0,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
09<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0user-scalable = [yes | no] ,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
10<\/td>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0target-densitydpi = [dpi_value | device-dpi | high-dpi | medium-dpi | low-dpi]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
11<\/td>\n\u00a0\u00a0\u00a0\u00a0“<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n
12<\/td>\n\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n
width<\/h5>\n

\u63a7\u5236 viewport \u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u6307\u5b9a\u7684\u4e00\u4e2a\u503c\u6216\u8005\u7279\u6b8a\u7684\u503c\uff0c\u5982 device-width \u4e3a\u8bbe\u5907\u7684\u5bbd\u5ea6\uff08\u5355\u4f4d\u4e3a\u7f29\u653e\u4e3a 100% \u65f6\u7684 CSS \u7684\u50cf\u7d20\uff09\u3002<\/p>\n

height<\/h5>\n

\u548c width \u76f8\u5bf9\u5e94\uff0c\u6307\u5b9a\u9ad8\u5ea6\u3002<\/p>\n

target-densitydpi<\/h5>\n

\u4e00\u4e2a\u5c4f\u5e55\u50cf\u7d20\u5bc6\u5ea6\u662f\u7531\u5c4f\u5e55\u5206\u8fa8\u7387\u51b3\u5b9a\u7684\uff0c\u901a\u5e38\u5b9a\u4e49\u4e3a\u6bcf\u82f1\u5bf8\u70b9\u7684\u6570\u91cf\uff08dpi\uff09\u3002Android\u652f\u6301\u4e09\u79cd\u5c4f\u5e55\u50cf\u7d20\u5bc6\u5ea6\uff1a\u4f4e\u50cf\u7d20\u5bc6\u5ea6\uff0c\u4e2d\u50cf\u7d20\u5bc6\u5ea6\uff0c\u9ad8\u50cf\u7d20\u5bc6\u5ea6\u3002\u4e00\u4e2a\u4f4e\u50cf\u7d20\u5bc6\u5ea6\u7684\u5c4f\u5e55\u6bcf\u82f1\u5bf8\u4e0a\u7684\u50cf\u7d20\u70b9\u66f4\u5c11\uff0c\u800c\u4e00\u4e2a\u9ad8\u50cf\u7d20\u5bc6\u5ea6\u7684\u5c4f\u5e55\u6bcf\u82f1\u5bf8\u4e0a\u7684\u50cf\u7d20\u70b9\u66f4\u591a\u3002Android Browser\u548cWebView\u9ed8\u8ba4\u5c4f\u5e55\u4e3a\u4e2d\u50cf\u7d20\u5bc6\u5ea6\u3002<\/p>\n

\u4e0b\u9762\u662f target-densitydpi \u5c5e\u6027\u7684 \u53d6\u503c\u8303\u56f4<\/p>\n

    \n
  • device-dpi \u2013\u4f7f\u7528\u8bbe\u5907\u539f\u672c\u7684 dpi \u4f5c\u4e3a\u76ee\u6807 dp\u3002 \u4e0d\u4f1a\u53d1\u751f\u9ed8\u8ba4\u7f29\u653e\u3002<\/li>\n
  • high-dpi \u2013 \u4f7f\u7528hdpi \u4f5c\u4e3a\u76ee\u6807 dpi\u3002 \u4e2d\u7b49\u50cf\u7d20\u5bc6\u5ea6\u548c\u4f4e\u50cf\u7d20\u5bc6\u5ea6\u8bbe\u5907\u76f8\u5e94\u7f29\u5c0f\u3002<\/li>\n
  • medium-dpi \u2013 \u4f7f\u7528mdpi\u4f5c\u4e3a\u76ee\u6807 dpi\u3002 \u9ad8\u50cf\u7d20\u5bc6\u5ea6\u8bbe\u5907\u76f8\u5e94\u653e\u5927\uff0c \u50cf\u7d20\u5bc6\u5ea6\u8bbe\u5907\u76f8\u5e94\u7f29\u5c0f\u3002 \u8fd9\u662f\u9ed8\u8ba4\u7684target density.<\/li>\n
  • low-dpi -\u4f7f\u7528mdpi\u4f5c\u4e3a\u76ee\u6807 dpi\u3002\u4e2d\u7b49\u50cf\u7d20\u5bc6\u5ea6\u548c\u9ad8\u50cf\u7d20\u5bc6\u5ea6\u8bbe\u5907\u76f8\u5e94\u653e\u5927\u3002<\/li>\n
  • <value> \u2013 \u6307\u5b9a\u4e00\u4e2a\u5177\u4f53\u7684dpi \u503c\u4f5c\u4e3atarget dpi. \u8fd9\u4e2a\u503c\u7684\u8303\u56f4\u5fc5\u987b\u572870\u2013400\u4e4b\u95f4\u3002<\/li>\n<\/ul>\n
    \n
    \n
    \n\n\n\n
    1<\/td>\n<!– html document –><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n\n\n\n
    2<\/td>\n<meta\u00a0name=”viewport”\u00a0content=”target-densitydpi=device-dpi”\u00a0\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n\n\n\n
    3<\/td>\n<meta\u00a0name=”viewport”\u00a0content=”target-densitydpi=high-dpi”\u00a0\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n\n\n\n
    4<\/td>\n<meta\u00a0name=”viewport”\u00a0content=”target-densitydpi=medium-dpi”\u00a0\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n\n\n\n
    5<\/td>\n<meta\u00a0name=”viewport”\u00a0content=”target-densitydpi=low-dpi”\u00a0\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n\n\n\n
    6<\/td>\n<meta\u00a0name=”viewport”\u00a0content=”target-densitydpi=200″\u00a0\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

    \u4e3a\u4e86\u9632\u6b62Android Browser\u548cWebView \u6839\u636e\u4e0d\u540c\u5c4f\u5e55\u7684\u50cf\u7d20\u5bc6\u5ea6\u5bf9\u4f60\u7684\u9875\u9762\u8fdb\u884c\u7f29\u653e\uff0c\u4f60\u53ef\u4ee5\u5c06viewport\u7684target-densitydpi \u8bbe\u7f6e\u4e3a device-dpi\u3002\u5f53\u4f60\u8fd9\u4e48\u505a\u4e86\uff0c\u9875\u9762\u5c06\u4e0d\u4f1a\u7f29\u653e\u3002\u76f8\u53cd\uff0c\u9875\u9762\u4f1a\u6839\u636e\u5f53\u524d\u5c4f\u5e55\u7684\u50cf\u7d20\u5bc6\u5ea6\u8fdb\u884c\u5c55\u793a\u3002\u5728\u8fd9\u79cd\u60c5\u5f62\u4e0b\uff0c\u4f60\u8fd8\u9700\u8981\u5c06viewport\u7684width\u5b9a\u4e49\u4e3a\u4e0e\u8bbe\u5907\u7684width\u5339\u914d\uff0c\u8fd9\u6837\u4f60\u7684\u9875\u9762\u5c31\u53ef\u4ee5\u548c\u5c4f\u5e55\u76f8\u9002\u5e94\u3002<\/p>\n

    initial-scale<\/h5>\n

    \u521d\u59cb\u7f29\u653e\u3002\u5373\u9875\u9762\u521d\u59cb\u7f29\u653e\u7a0b\u5ea6\u3002\u8fd9\u662f\u4e00\u4e2a\u6d6e\u70b9\u503c\uff0c\u662f\u9875\u9762\u5927\u5c0f\u7684\u4e00\u4e2a\u4e58\u6570\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u8bbe\u7f6e\u521d\u59cb\u7f29\u653e\u4e3a\u201c1.0\u201d\uff0c\u90a3\u4e48\uff0cweb\u9875\u9762\u5728\u5c55\u73b0\u7684\u65f6\u5019\u5c31\u4f1a\u4ee5target density\u5206\u8fa8\u7387\u76841:1\u6765\u5c55\u73b0\u3002\u5982\u679c\u4f60\u8bbe\u7f6e\u4e3a\u201c2.0\u201d\uff0c\u90a3\u4e48\u8fd9\u4e2a\u9875\u9762\u5c31\u4f1a\u653e\u5927\u4e3a2\u500d\u3002<\/p>\n

    maximum-scale<\/h5>\n

    \u6700\u5927\u7f29\u653e\u3002\u5373\u5141\u8bb8\u7684\u6700\u5927\u7f29\u653e\u7a0b\u5ea6\u3002\u8fd9\u4e5f\u662f\u4e00\u4e2a\u6d6e\u70b9\u503c\uff0c\u7528\u4ee5\u6307\u51fa\u9875\u9762\u5927\u5c0f\u4e0e\u5c4f\u5e55\u5927\u5c0f\u76f8\u6bd4\u7684\u6700\u5927\u4e58\u6570\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u5c06\u8fd9\u4e2a\u503c\u8bbe\u7f6e\u4e3a\u201c2.0\u201d\uff0c\u90a3\u4e48\u8fd9\u4e2a\u9875\u9762\u4e0etarget size\u76f8\u6bd4\uff0c\u6700\u591a\u80fd\u653e\u59272\u500d\u3002<\/p>\n

    user-scalable<\/h5>\n

    \u7528\u6237\u8c03\u6574\u7f29\u653e\u3002\u5373\u7528\u6237\u662f\u5426\u80fd\u6539\u53d8\u9875\u9762\u7f29\u653e\u7a0b\u5ea6\u3002\u5982\u679c\u8bbe\u7f6e\u4e3ayes\u5219\u662f\u5141\u8bb8\u7528\u6237\u5bf9\u5176\u8fdb\u884c\u6539\u53d8\uff0c\u53cd\u4e4b\u4e3ano\u3002\u9ed8\u8ba4\u503c\u662fyes\u3002\u5982\u679c\u4f60\u5c06\u5176\u8bbe\u7f6e\u4e3ano\uff0c\u90a3\u4e48minimum-scale \u548c maximum-scale\u90fd\u5c06\u88ab\u5ffd\u7565\uff0c\u56e0\u4e3a\u6839\u672c\u4e0d\u53ef\u80fd\u7f29\u653e\u3002<\/p>\n

    \u6240\u6709\u7684\u7f29\u653e\u503c\u90fd\u5fc5\u987b\u57280.01\u201310\u7684\u8303\u56f4\u4e4b\u5185\u3002<\/p>\n

    \u4f8b\uff1a<\/p>\n

    (\u8bbe\u7f6e\u5c4f\u5e55\u5bbd\u5ea6\u4e3a\u8bbe\u5907\u5bbd\u5ea6\uff0c\u7981\u6b62\u7528\u6237\u624b\u52a8\u8c03\u6574\u7f29\u653e)<\/p>\n

    <meta name=”viewport” content=”width=device-width,user-scalable=no” \/><\/p>\n

    (\u8bbe\u7f6e\u5c4f\u5e55\u5bc6\u5ea6\u4e3a\u9ad8\u9891\uff0c\u4e2d\u9891\uff0c\u4f4e\u9891\u81ea\u52a8\u7f29\u653e\uff0c\u7981\u6b62\u7528\u6237\u624b\u52a8\u8c03\u6574\u7f29\u653e)<\/p>\n

    <meta name=”viewport” content=”width=device-width,target-densitydpi=high-dpi,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no”\/><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    \u968f\u7740\u9ad8\u7aef\u624b\u673a(Andriod,Iphone,Ipod,WinPhone\u7b49)\u7684\u76db\u884c\uff0c\u79fb\u52a8\u4e92\u8054\u5e94\u7528\u5f00\u53d1\u4e5f\u8d8a\u6765\u8d8a\u53d7\u5230…<\/p>\n","protected":false},"author":2,"featured_media":228,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[83,60,56],"tags":[14,37,233,23,82],"_links":{"self":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts\/986"}],"collection":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/comments?post=986"}],"version-history":[{"count":1,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts\/986\/revisions"}],"predecessor-version":[{"id":987,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts\/986\/revisions\/987"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/media\/228"}],"wp:attachment":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/media?parent=986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/categories?post=986"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/tags?post=986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}