blocks|key|1971872|text|您可以强迫它使用SizedBox来调整自身的大小。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1971873|new+SizedBox(
+++height:+18.0,
+++width:+18.0,
+++child:+new+IconButton(
++++++padding:+new+EdgeInsets.all(0.0),
++++++color:+themeData.primaryColor,
++++++icon:+new+Icon(Icons.clear,+size:+18.0),
++++++onPressed:+onDelete,
+++)
)|code-block|syntax|javascript|1971874|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can force it to size itself with the SizedBox.

<pre><code>new SizedBox(
 height: 18.0,
 width: 18.0,
 child: new IconButton(
 padding: new EdgeInsets.all(0.0),
 color: themeData.primaryColor,
 icon: new Icon(Icons.clear, size: 18.0),
 onPressed: onDelete,
 )
)
</code></pre>

blocks|key|704437|text|有一种比公认的答案更新的方法。看起来是这样的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|704438|IconButton(
++iconSize:+18.0,
++icon:+new+Icon(Icons.clear)|code-block|syntax|javascript|704439|因此，使用iconSize属性并去掉SizedBox。|704440|我注意到，旧的接受的解决方案有一个坏的绘图效果时，按下按钮。|704441|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

There is a newer way than the accepted answer. It looks like this:

<pre><code>IconButton(
 iconSize: 18.0,
 icon: new Icon(Icons.clear)
</code></pre>

So use iconSize attribute and get rid of the SizedBox.

I noticed the old accepted solution had a bad drawing effect when pressing the button.

blocks|key|1971904|text|您可以将IconButton替换为InkWell：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1971905|InkWell(
++++child:+Icon(Icons.clear,+size:+18.0,+color:+themeData.primaryColor),
++++onTap:+onDelete,
),|code-block|syntax|javascript|1971906|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can replace IconButton with InkWell:

<pre><code>InkWell(
 child: Icon(Icons.clear, size: 18.0, color: themeData.primaryColor),
 onTap: onDelete,
),
</code></pre>

blocks|key|988380|text|在constraints上使用IconButton属性|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|988381|IconButton(
++++constraints:+BoxConstraints(maxHeight:+36),
++++icon:+new+Icon(Icons.clear,+size:+18.0),
)|code-block|syntax|javascript|988382|来源|988383|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/flutter/flutter/pull/47457^0|1|B|F|A|0|0|0|2|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|D|@$9|11|A|12|1|13]]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Use the <code>constraints</code> property on <code>IconButton</code>:
<pre class="lang-dart prettyprint-override"><code>IconButton(
 constraints: BoxConstraints(maxHeight: 36),
 icon: new Icon(Icons.clear, size: 18.0),
)
</code></pre>
<a href="https://github.com/flutter/flutter/pull/47457" rel="noreferrer">Source</a>

blocks|key|1971970|text|如果有人想更改图标按钮的Splash/Hover阴影大小。您需要将splashRadius属性设置为IconButton中所需的值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1971971|IconButton(
+++++splashRadius:+12,
+++++padding:+EdgeInsets.zero,
+++++icon:+Icon(
+++++++++++++Icons.visibility,
++++++++++++++color:+Theme.of(context).primaryColorDark,
++++),
)|code-block|syntax|javascript|1971972|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If anyone's looking to change the Splash/Hover shadow size for the icon buttons. You need to set splashRadius property to the desired value in the IconButton.
<pre><code>IconButton(
 splashRadius: 12,
 padding: EdgeInsets.zero,
 icon: Icon(
 Icons.visibility,
 color: Theme.of(context).primaryColorDark,
 ),
)
</code></pre>

blocks|key|704562|text|使用IconButton+>+splashColor，|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|704563|IconButton(
++//+use+this+to+decrease/increase+the+splash+spacing
++splashRadius:+24.0,++//+(Material.defaultSplashRadius+=+35.0)
++color:+buttonColor,
++icon:+Icon(Icons.heart),
++onPressed:+()+{},
);|code-block|syntax|javascript|704564|​|704565|📷|atomic|704566|704567|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/7f4f36f26af60aeae45eb27b51b06e76.png|imageAlt^0|2|O|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|13|8|@]|D|@]|E|$]]|$1|M|3|N|5|O|7|14|8|@]|D|@$9|15|A|16|1|17]]|E|$]]|$1|P|3|L|5|6|7|18|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X|Y|-4]]]]

Use <code>IconButton &gt; splashColor</code>,
<pre class="lang-dart prettyprint-override"><code>IconButton(
 // use this to decrease/increase the splash spacing
 splashRadius: 24.0, // (Material.defaultSplashRadius = 35.0)
 color: buttonColor,
 icon: Icon(Icons.heart),
 onPressed: () {},
);
</code></pre>
<a href="https://i.stack.imgur.com/64NUy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/64NUy.png" alt="demo iconbutton" /></a>

blocks|key|704502|text|IconButton的命中区域是能够感知用户交互的区域，它的最小大小是kMinInteractiveDimension+(48.0)，而不管图标的实际大小。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|704503|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

IconButton's hit region is the area that can perceive user interaction, it has the smallest size is kMinInteractiveDimension (48.0) regardless of the actual size of the Icon.

blocks|key|704478|text|如果您使用的是“资产”文件夹中的图像，下面应该可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|704479|IconButton(
++++++icon:+Image.asset(
++++++++"assets/images/play_3x.png",
++++++++height:+100,
++++++++width:+100,
++++++++color:+Colors.white,
)|code-block|syntax|javascript|704480|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you use images from assets folder, below should work:
<pre><code>IconButton(
 icon: Image.asset(
 &quot;assets/images/play_3x.png&quot;,
 height: 100,
 width: 100,
 color: Colors.white,
)
</code></pre>

How to resize (height and width) of an IconButton in Flutter? Seems like it takes a default width and height. There is not height or width property.

<pre><code>new IconButton(
 padding: new EdgeInsets.all(0.0),
 color: themeData.primaryColor,
 icon: new Icon(Icons.clear, size: 18.0),
 onPressed: onDelete,
)
</code></pre>

How to resize (height and width) of an IconButton in Flutter

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如何在颤振中调整IconButton的大小(高度和宽度)？它似乎需要一个默认的宽度和高度。没有高度或宽度属性。new IconButton(    padding: new EdgeInsets.all(0.0),    color: themeData.primaryColor,    icon: new Icon(Icons.clear, size: 18.0),    onPressed: 

问如何在颤振中调整IconButton的大小(高度和宽度)
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