FMX \u4ece\u7cfb\u7edf\u4e2d\u83b7\u53d6\u56fe\u7247\u9884\u5b9a\u4e49\u4e86\u4e00\u4e2a\u52a8\u4f5c\uff0c\u53eb TTakePhotoFromCameraAction\uff0c\u4e0d\u8fc7\u5b83\u7684\u5b9e\u73b0\u6709\u4e00\u4e2a\u5c0f Bug\uff0c\u5927\u5bb6\u8981\u6ce8\u610f\u4e00\u4e0b\u3002<\/p>\n
\u95ee\u9898\u51fa\u5728\u5b83\u9ed8\u8ba4\u7684 ExecuteTarget \u7684\u5b9e\u73b0\u4e2d\uff0c\u5b83\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
procedure TTakePhotoFromCameraAction.ExecuteTarget(Target: TObject);\r\nbegin\r\n if IsSupportedInterface then\r\n FCameraService.TakePhoto(Target as TControl, GetParamsPhotoQuery);\r\nend;<\/pre>\n\u95ee\u9898\u5c31\u51fa\u5728 Target \u672a\u5fc5\u662f TControl \u7684\u5b50\u7c7b\u3002TApplication.ActionExecuteTarget \u4e2d\u7684\u4ee3\u7801\uff1a<\/p>\n
function TApplication.ActionExecuteTarget(Action: TBasicAction): Boolean;\r\n function ActiveControlByForm(const Form: TCommonCustomForm): TComponent;\r\n begin\r\n if Form.Focused <> nil then\r\n Result := Form.Focused.GetObject\r\n else if (Form is TCustomForm) and (TCustomForm(Form).ActiveControl <> nil) then\r\n Result := TCustomForm(Form).ActiveControl\r\n else\r\n Result := Form;\r\n end;\r\n\r\n function FindActiveControl: TComponent;\r\n var\r\n I: Integer;\r\n begin\r\n Result := Application;\r\n if Screen <> nil then\r\n begin\r\n if Screen.ActiveForm <> nil then\r\n Result := ActiveControlByForm(Screen.ActiveForm)\r\n else if (Application.MainForm <> nil) and Application.MainForm.Visible then\r\n Result := ActiveControlByForm(Application.MainForm)\r\n else for I := Screen.FormCount - 1 downto 0 do\r\n if Screen.Forms[I].Visible then\r\n begin\r\n Result := ActiveControlByForm(Screen.Forms[I]);\r\n Break;\r\n end;\r\n end;\r\n end;\r\nvar\r\n ActiveComponent: TComponent;\r\nbegin\r\n Result := False;\r\n if Action <> nil then\r\n begin\r\n ActiveComponent := FindActiveControl;\r\n if ActiveComponent <> nil then\r\n Result := ActiveComponent.ExecuteAction(Action);\r\n end;\r\nend;<\/pre>\n\u53ea\u662f\u4fdd\u8bc1\u4e86\u52a8\u4f5c\u662f ActiveComponent \uff0c\u800c\u4e14\u00a0ActiveControlByForm \u8fd4\u56de\u7684\u6709\u53ef\u80fd\u662f TForm\uff0c\u800c TForm \u5728 FMX \u4e2d\u5374\u4e0d\u662f TControl \u7684\u5b50\u7c7b\uff0c\u6240\u4ee5\u95ee\u9898\u5c31\u51fa\u6765\u4e86\u3002\u5982\u679c\u5f53\u524d\u7a97\u4f53\u6ca1\u6709\u4e00\u4e2a ActiveControl \uff0c\u90a3\u5c31\u4f1a\u8fd4\u56de\u5f53\u524d\u7684\u7a97\u4f53\uff0c\u7ed3\u679c\u5c31\u662f\u5230\u4e86\u00a0TTakePhotoFromCameraAction \u7684 ExecuteTarget \u65f6\uff0c\u7531\u4e8e Target \u662f TForm\uff0c\u4e0d\u662f\u4ece TControl \u7ee7\u627f\u4e0b\u6765\u7684\uff0c\u7ed3\u679c\u51fa\u9519\u3002<\/p>\n
\u597d\u5427\uff0c\u8fd9\u4e2a Bug \u5f88\u4f4e\u7ea7\uff0c\u89e3\u51b3\u7684\u529e\u6cd5\u4e5f\u5f88\u7b80\u5355\uff0c\u81ea\u5df1\u624b\u52a8\u8c03\u7528 ExecuteTarget\uff0c\u7136\u540e\u5c06\u53c2\u6570\u8bbe\u7f6e\u4e3a\u4f60\u89e6\u53d1\u52a8\u4f5c\u7684\u63a7\u4ef6\u5c31\u597d\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
FMX \u4ece\u7cfb\u7edf\u4e2d\u83b7\u53d6\u56fe\u7247\u9884\u5b9a\u4e49\u4e86\u4e00\u4e2a\u52a8\u4f5c […]<\/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":[69,8,21],"tags":[652,653,47],"class_list":["post-4038","post","type-post","status-publish","format-standard","hentry","category-c-builder","category-delphi","category-misc","tag-ttakephotofromcameraaction","tag-653","tag-47"],"views":4337,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4038","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=4038"}],"version-history":[{"count":1,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4038\/revisions"}],"predecessor-version":[{"id":4039,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4038\/revisions\/4039"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}