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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:43:23 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:43:23 -0500
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+---
+title: DeviceOrientationEvent
+slug: Web/API/DeviceOrientationEvent
+translation_of: Web/API/DeviceOrientationEvent
+---
+<p>{{apiref("Device Orientation Events")}}{{SeeCompatTable}}</p>
+
+<p><code>DeviceOrientationEvent</code> 提供了網頁開發者關於目前瀏覽頁面之裝置的物理旋轉方向資訊。</p>
+
+<div class="warning">
+<p><strong>Warning:</strong> Currently, Firefox and Chrome do not handle the coordinates the same way. Take care about this while using them.</p>
+</div>
+
+<h2 id="屬性">屬性</h2>
+
+<dl>
+ <dt>{{domxref("DeviceOrientationEvent.absolute")}} {{readonlyinline}}</dt>
+ <dd>A boolean that indicates whether or not the device is providing orientation data absolutely.</dd>
+ <dt>{{domxref("DeviceOrientationEvent.alpha")}} {{readonlyinline}}</dt>
+ <dd>A number representing the motion of the device around the z axis, express in degrees with values ranging from 0 to 360</dd>
+ <dt>{{domxref("DeviceOrientationEvent.beta")}} {{readonlyinline}}</dt>
+ <dd>A number representing the motion of the device around the x axis, express in degrees with values ranging from -180 to 180. This represents a front to back motion of the device.</dd>
+ <dt>{{domxref("DeviceOrientationEvent.gamma")}} {{readonlyinline}}</dt>
+ <dd>A number representing the motion of the device around the y axis, express in degrees with values ranging from -90 to 90. This represents a left to right motion of the device.</dd>
+</dl>
+
+<h2 id="範例">範例</h2>
+
+<pre class="brush: js">window.addEventListener('deviceorientation', function(event) {
+  console.log(event.alpha + ' : ' + event.beta + ' : ' + event.gamma);
+});</pre>
+
+<h2 id="規範">規範</h2>
+
+<table class="standard-table">
+ <thead>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>{{SpecName('Device Orientation')}}</td>
+ <td>{{Spec2('Device Orientation')}}</td>
+ <td>Initial specification.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="瀏覽器相容性">瀏覽器相容性</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Chrome</th>
+ <th>Edge</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari (WebKit)</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>7.0 [1]</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>6 [2]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Android</th>
+ <th>Android Webview</th>
+ <th>Edge</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ <th>Chrome for Android</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>3.0</td>
+ <td>{{CompatVersionUnknown}} [1]</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>6 [2]</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>4.2</td>
+ <td>{{CompatVersionUnknown}} [1]</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the {{domxref("ondeviceorientationabsolute")}} event.</p>
+
+<p>[2] Firefox 3.6, 4, and 5 supported <a href="/en-US/DOM/MozOrientation">mozOrientation </a>instead of the standard <code>DeviceOrientationEvent</code> interface</p>
+
+<h2 id="參見">參見</h2>
+
+<ul>
+ <li>{{ event("deviceorientation") }}</li>
+ <li>{{ domxref("DeviceMotionEvent") }}</li>
+ <li>{{ event("devicemotion") }}</li>
+ <li><a href="/en-US/docs/WebAPI/Detecting_device_orientation" title="/en-US/docs/WebAPI/Detecting_device_orientation">Detecting device orientation</a></li>
+ <li><a href="https://developer.mozilla.org/en/DOM/Orientation_and_motion_data_explained" title="Orientation and motion data explained">Orientation and motion data explained</a></li>
+</ul>