{"id":3469,"date":"2016-01-21T09:58:22","date_gmt":"2016-01-21T01:58:22","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=3469"},"modified":"2016-03-01T13:55:02","modified_gmt":"2016-03-01T05:55:02","slug":"fmx-android-%e4%b8%8b%e4%b8%ba%e4%bd%a0%e7%9a%84%e7%a8%8b%e5%ba%8f%e5%bc%80%e5%90%af%e6%8a%97%e9%94%af%e9%bd%bf","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=3469","title":{"rendered":"[FMX] Android \u4e0b\u4e3a\u4f60\u7684\u7a0b\u5e8f\u5f00\u542f\u6297\u952f\u9f7f"},"content":{"rendered":"<p>\u5148\u770b\u4e00\u5f20\u56fe\uff1aHQ-0 \u662f\u7b80\u5355\u8bbe\u7f6e Form \u7684 Quality \u4e3a HighQuality \u7684\u7ed3\u679c\uff0cHQ-1 \u662f\u505a\u4e86\u8fdb\u4e00\u6b65\u8bbe\u7f6e\u7684\u7ed3\u679c\uff0cDQ \u662f\u9ed8\u8ba4\u7684\u6548\u679c\uff0c\u5927\u5bb6\u53ef\u4ee5\u770b\u5230\uff0cHQ-0 \u548c\u9ed8\u8ba4\u7684\u6ca1\u6709\u6297\u952f\u9f7f\u7684\u6548\u679c\u6ca1\u5565\u533a\u522b\u3002<\/p>\n<p><a href=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2016\/01\/AndroidAntialias.jpg\" rel=\"attachment wp-att-3470\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3470 aligncenter\" src=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2016\/01\/AndroidAntialias.jpg\" alt=\"AndroidAntialias\" width=\"792\" height=\"502\" srcset=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2016\/01\/AndroidAntialias.jpg 792w, https:\/\/blog.qdac.cc\/wp-content\/uploads\/2016\/01\/AndroidAntialias-300x190.jpg 300w, https:\/\/blog.qdac.cc\/wp-content\/uploads\/2016\/01\/AndroidAntialias-768x487.jpg 768w\" sizes=\"auto, (max-width: 792px) 100vw, 792px\" \/><\/a><\/p>\n<p>\u90a3\u4e48\uff0c\u95ee\u9898\u7684\u5173\u952e\u5728\u90a3\u91cc\u5462\uff1f<\/p>\n<p>\u95ee\u9898\u7684\u5173\u952e\u5c31\u5728\u4f60\u8bbe\u7f6e\u5b8c\u54c1\u8d28\u9009\u9879\u540e\uff0c\u8fd8\u9700\u8981\u8c03\u7528\u4e00\u4e2a\u51fd\u6570\uff0c\u7f3a\u5c11\u5b83\uff0c\u66f4\u6539\u54c1\u8d28\u7684\u4ee3\u7801\u4e0d\u4f1a\u8d77\u4f5c\u7528\u3002<\/p>\n<pre class=\"lang:delphi decode:true \">uses FMX.Context.GLES.Android;\r\n...\r\nTCustomAndroidContext.RecreateSharedContext;\/\/\u5728\u66f4\u6539\u5b8c\u54c1\u8d28\u5c5e\u6027\u540e\u9700\u8981\u8c03\u7528\u8fd9\u53e5\uff0cFMX\u9ed8\u8ba4\u6ca1\u8c03\u7528\uff0c\u6240\u4ee5\u6ca1\u542f\u4f5c\u7528\r\n<\/pre>\n<p>\u597d\u4e86\uff0c\u52a0\u4e0a\u8fd9\u53e5\u4ee3\u7801\u91cd\u5efa\u5171\u4eab\u7684\u4e0a\u4e0b\u6587\u540e\uff0c\u4f60\u7684\u7a97\u4f53\u4e0a\u6240\u6709\u7684\u4e1c\u897f\u5c31\u4f1a\u6297\u952f\u9f7f\u4e86\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u6bb5\u6d4b\u8bd5\u7684\u6e90\u7801\uff0c\u5728\u754c\u9762\u4e0a\u65cb\u8f6c\u4e00\u4e2a\u6309\u94ae\uff0c\u4e00\u4e2a Label \u548c\u4e00\u4e2a CheckBox\uff0c\u7136\u540e\u5728\u6309\u94ae\u7684 OnClick \u548c Form \u7684 OnPaint \u6dfb\u52a0\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n<pre class=\"lang:delphi decode:true\">unit Unit1;\r\n\r\ninterface\r\n\r\nuses\r\n  System.SysUtils, System.Types, System.UITypes, System.Classes,\r\n  System.Variants,\r\n  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.Objects,\r\n  FMX.Controls.Presentation, FMX.StdCtrls;\r\n\r\ntype\r\n  TForm1 = class(TForm)\r\n    btnChangeQuality: TButton;\r\n    Label1: TLabel;\r\n    CheckBox1: TCheckBox;\r\n    procedure Button1Click(Sender: TObject);\r\n    procedure FormPaint(Sender: TObject; Canvas: TCanvas; const ARect: TRectF);\r\n  private\r\n    { Private declarations }\r\n  public\r\n    { Public declarations }\r\n  end;\r\n\r\nvar\r\n  Form1: TForm1;\r\n\r\nimplementation\r\n\r\nuses FMX.Context.GLES.Android;\r\n{$R *.fmx}\r\n\r\nprocedure TForm1.Button1Click(Sender: TObject);\r\nbegin\r\n  if Quality = TCanvasQuality.HighPerformance then\r\n    Quality := TCanvasQuality.HighQuality\r\n  else\r\n    Quality := TCanvasQuality.HighPerformance;\r\n  case Quality of\r\n    TCanvasQuality.SystemDefault:\r\n      Label1.Text := 'Default';\r\n    TCanvasQuality.HighPerformance:\r\n      Label1.Text := 'HighPerformance';\r\n    TCanvasQuality.HighQuality:\r\n      Label1.Text := 'HighQuality';\r\n  end;\r\n  if CheckBox1.IsChecked then\r\n    TCustomAndroidContext.RecreateSharedContext;\r\n  Invalidate;\r\nend;\r\n\r\nprocedure TForm1.FormPaint(Sender: TObject; Canvas: TCanvas;\r\n  const ARect: TRectF);\r\nbegin\r\n  Canvas.BeginScene();\r\n  try\r\n    Canvas.StrokeThickness := 20;\r\n    Canvas.Stroke.Color := TAlphaColors.Black;\r\n    Canvas.Stroke.Kind := TBrushKind.Solid;\r\n    Canvas.DrawLine(PointF(0, 0), PointF(Width, Height), 1);\r\n  finally\r\n    Canvas.EndScene;\r\n  end;\r\nend;\r\n\r\nend.<\/pre>\n<p>\u7136\u540e\uff0c\u5728\u624b\u673a\u4e0a\u8fd0\u884c\u7a0b\u5e8f\uff0c\u5206\u522b\u5728 HighPerformance \u6a21\u5f0f\u4e0b\uff0c\u9009\u4e2d CheckBox\uff0c\u7136\u540e\u518d\u70b9\u51fb Button \u5207\u6362\u5230 HighQuality \u6a21\u5f0f\uff0c\u5c31\u80fd\u770b\u51fa\u6548\u679c\u7684\u5bf9\u6bd4\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u770b\u4e00\u5f20\u56fe\uff1aHQ-0 \u662f\u7b80\u5355\u8bbe\u7f6e For [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[145,69,8],"tags":[555,149,556,541,540],"class_list":["post-3469","post","type-post","status-publish","format-standard","hentry","category-android","category-c-builder","category-delphi","tag-content","tag-fmx","tag-quality","tag-541","tag-540"],"views":5534,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/3469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3469"}],"version-history":[{"count":3,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/3469\/revisions"}],"predecessor-version":[{"id":3574,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/3469\/revisions\/3574"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}