{"id":1161,"date":"2014-11-07T09:36:28","date_gmt":"2014-11-07T01:36:28","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=1161"},"modified":"2016-09-06T12:52:49","modified_gmt":"2016-09-06T04:52:49","slug":"android%e8%8e%b7%e5%8f%96%e5%b1%8f%e5%b9%95%e7%9a%84%e7%89%a9%e7%90%86%e5%88%86%e8%be%a8%e7%8e%87","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=1161","title":{"rendered":"[Android]\u83b7\u53d6\u5c4f\u5e55\u7684\u7269\u7406\u5206\u8fa8\u7387"},"content":{"rendered":"<p>\u5728Windows\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u7528Screen\u5bf9\u8c61\u83b7\u53d6\u5f53\u524d\u5206\u8fa8\u7387\uff0c\u4f46\u5728Android\u7b49FMX\u6846\u67b6\u4e0b\uff0cScreen.Size\u7684\u503c\u660e\u663e\u4e0d\u6b63\u786e\u3002\u5728Delphi.org\u4e0a\u770b\u5230\u4e00\u7bc7\u6587\u7ae0\uff0c\u53d1\u73b0\u539f\u6765\u662f\u8fd9\u6837\u5b50:)<\/p>\n<pre class=\"lang:delphi decode:true \">uses FMX.BehaviorManager;\r\n\r\nvar\r\n  DeviceBehavior: IDeviceBehavior;\r\n  DisplayMetrics: TDeviceDisplayMetrics;\r\nbegin\r\nif TBehaviorServices.Current.SupportsBehaviorService(IDeviceBehavior,DeviceBehavior,Self) then\r\n  begin\r\n  DisplayMetrics:=DeviceBehavior.GetDisplayMetrics(Self);\r\n  Label1.Text:='\u7269\u7406\u5206\u8fa8\u7387:'+IntToStr(DisplayMetrics.PhysicalScreenSize.cx)+'x'+IntToStr(DisplayMetrics.PhysicalScreenSize.cy)+#13#10+\r\n    '\u5c4f\u5e55\u5c3a\u5bf8:'+FloatToStr(sqrt(\r\n      DisplayMetrics.PhysicalScreenSize.cx*DisplayMetrics.PhysicalScreenSize.cx\/DisplayMetrics.PixelsPerInch\/DisplayMetrics.PixelsPerInch+\r\n      DisplayMetrics.PhysicalScreenSize.cy*DisplayMetrics.PhysicalScreenSize.cy\/DisplayMetrics.PixelsPerInch\/DisplayMetrics.PixelsPerInch))+#13#10+\r\n    'PPI:'+FloatToStr(DisplayMetrics.PixelsPerInch);\r\n  end;\r\nend;<\/pre>\n<p>TDeviceDisplayMetrics\u7684\u51e0\u4e2a\u6210\u5458\uff1a<\/p>\n<p>PhysicalScreenSize\u8bb0\u5f55\u4e86\u7269\u7406\u5206\u8fa8\u7387\uff0c\u5355\u4f4d\u662f\u50cf\u7d20\uff0ccx\u4e3a\u5bbd\u5ea6\uff0ccy\u4e3a\u9ad8\u5ea6<\/p>\n<p>LogicalScreenSize \u8bb0\u5f55\u4e86\u903b\u8f91\u5206\u8fa8\u7387\uff0c\u5355\u4f4d\u662f\u82f1\u5bf8\uff0c\u5b9e\u9645\u4e0a\u662f\u7269\u7406\u5206\u8fa8\u7387\u9664\u4ee5\u6bcf\u82f1\u5bf8\u7684\u50cf\u7d20\u6570\uff08PPI\uff09\u53d6\u6574\u7684\u7ed3\u679c<\/p>\n<p>AspectRatio \u5c4f\u5e55\u6bd4\u4f8b<br \/>\nPixelsPerInch\u00a0\u6bcf\u82f1\u5bf8\u50cf\u7d20\u6570<br \/>\nScreenScale \u5c4f\u5e55\u7f29\u653e\u6bd4\u4f8b<br \/>\nFontScale \u5b57\u4f53\u7f29\u653e\u6bd4\u4f8b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Windows\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u7528Scree [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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