141 lines
6.8 KiB
HTML
141 lines
6.8 KiB
HTML
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<meta name="description" content="API docs for the CameraPosition constructor from the Class CameraPosition class from the amap_map library, for the Dart programming language.">
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<title>CameraPosition constructor - CameraPosition class - amap_map library - Dart API</title>
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<li><a href="../../amap_map/CameraPosition-class.html">CameraPosition</a></li>
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<li class="self-crumb">CameraPosition const constructor</li>
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<div class="self-name">CameraPosition</div>
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<li><a href="../../amap_map/CameraPosition-class.html">CameraPosition</a></li>
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<li class="self-crumb">CameraPosition const constructor</li>
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<h5>CameraPosition class</h5>
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<ol>
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<li class="section-title"><a href="../../amap_map/CameraPosition-class.html#constructors">Constructors</a></li>
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<li><a href="../../amap_map/CameraPosition/CameraPosition.html">CameraPosition</a></li>
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<li class="section-title">
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<a href="../../amap_map/CameraPosition-class.html#instance-properties">Properties</a>
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</li>
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<li><a href="../../amap_map/CameraPosition/bearing.html">bearing</a></li>
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<li><a href="../../amap_map/CameraPosition/hashCode.html">hashCode</a></li>
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<li class="inherited"><a href="https://api.flutter.dev/flutter/dart-core/Object/runtimeType.html">runtimeType</a></li>
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<li><a href="../../amap_map/CameraPosition/target.html">target</a></li>
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<li><a href="../../amap_map/CameraPosition/tilt.html">tilt</a></li>
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<li><a href="../../amap_map/CameraPosition/zoom.html">zoom</a></li>
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<li class="section-title"><a href="../../amap_map/CameraPosition-class.html#instance-methods">Methods</a></li>
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<li class="inherited"><a href="https://api.flutter.dev/flutter/dart-core/Object/noSuchMethod.html">noSuchMethod</a></li>
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<li><a href="../../amap_map/CameraPosition/toMap.html">toMap</a></li>
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<li><a href="../../amap_map/CameraPosition/toString.html">toString</a></li>
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<li class="section-title"><a href="../../amap_map/CameraPosition-class.html#operators">Operators</a></li>
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<li><a href="../../amap_map/CameraPosition/operator_equals.html">operator ==</a></li>
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<li class="section-title"><a href="../../amap_map/CameraPosition-class.html#static-methods">Static methods</a></li>
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<li><a href="../../amap_map/CameraPosition/fromMap.html">fromMap</a></li>
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<div><h1><span class="kind-constructor">CameraPosition</span> constructor </h1></div>
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<section class="multi-line-signature">
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const
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<span class="name ">CameraPosition</span>(<wbr><ol class="parameter-list"><li><span class="parameter" id="-param-bearing">{<span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/double-class.html">double</a></span> <span class="parameter-name">bearing</span>: <span class="default-value">0.0</span>, </span></li>
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<li><span class="parameter" id="-param-target"><span>@<a href="https://api.flutter.dev/flutter/widgets/required-constant.html">required</a></span> <span class="type-annotation">LatLng</span> <span class="parameter-name">target</span>, </span></li>
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<li><span class="parameter" id="-param-tilt"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/double-class.html">double</a></span> <span class="parameter-name">tilt</span>: <span class="default-value">0.0</span>, </span></li>
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<li><span class="parameter" id="-param-zoom"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/double-class.html">double</a></span> <span class="parameter-name">zoom</span>: <span class="default-value">10</span>}</span></li>
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</ol>)
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</section>
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<section class="desc markdown">
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<p>构造一个CameraPosition 对象</p>
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<p>如果<code>bearing</code>, <code>target</code>, <code>tilt</code>, 或者 <code>zoom</code> 为null时会返回<a href="https://api.flutter.dev/flutter/dart-core/AssertionError-class.html">AssertionError</a></p>
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</section>
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<section class="summary source-code" id="source">
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<h2><span>Implementation</span></h2>
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<pre class="language-dart"><code class="language-dart">const CameraPosition({
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this.bearing = 0.0,
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@required this.target,
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this.tilt = 0.0,
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this.zoom = 10,
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}) : assert(bearing != null),
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assert(target != null),
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assert(tilt != null),
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assert(zoom != null);</code></pre>
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