From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- files/zh-cn/web/api/screen/orientation/index.html | 69 +++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 files/zh-cn/web/api/screen/orientation/index.html (limited to 'files/zh-cn/web/api/screen/orientation') diff --git a/files/zh-cn/web/api/screen/orientation/index.html b/files/zh-cn/web/api/screen/orientation/index.html new file mode 100644 index 0000000000..0a06678a03 --- /dev/null +++ b/files/zh-cn/web/api/screen/orientation/index.html @@ -0,0 +1,69 @@ +--- +title: Screen.orientation +slug: Web/API/Screen/orientation +tags: + - API + - Experimental + - Screen Orientation + - screen +translation_of: Web/API/Screen/orientation +--- +

{{APIRef("Screen Orientation API")}}{{SeeCompatTable}}

+ +

orientation 是 {{DOMxRef("Screen")}} 接口的一个只读属性,返回屏幕当前的方向。

+ +

语法

+ +
var orientation = window.screen.orientation;
+ +

返回值

+ +

一个 {{DOMxRef("ScreenOrientation")}} 的实例,表示屏幕的方向。

+ +

注意在更早的、有前缀的版本中会返回一个 {{DOMxRef("DOMString")}} 值,相当于 {{DOMxRef("ScreenOrientation.type")}} 的值。

+ +

示例

+ +
var orientation = (screen.orientation || {}).type || screen.mozOrientation || screen.msOrientation;
+
+if (orientation === "landscape-primary") {
+  console.log("That looks good.");
+} else if (orientation === "landscape-secondary") {
+  console.log("Mmmh... the screen is upside down!");
+} else if (orientation === "portrait-secondary" || orientation === "portrait-primary") {
+  console.log("Mmmh... you should rotate your device to landscape");
+} else if (orientation === undefined) {
+  console.log("The orientation API isn't supported in this browser :(");
+}
+
+ +

规范

+ + + + + + + + + + + + + + + + +
规范状态备注
{{SpecName('Screen Orientation', '#dom-screen-orientation', 'orientation')}}{{Spec2('Screen Orientation')}}Initial definition
+ +

浏览器兼容性

+ +

{{Compat("api.Screen.orientation")}}

+ +

参见

+ + -- cgit v1.2.3-54-g00ecf