blocks|key|2694733|text|我找到了另一个很酷的解决方案。这与预览中布局的大小无关。您可以模拟滚动，以查看隐藏的内容。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2694734|与工具一起使用，因为它只在预览中有影响。然后增加/减少"scroll“的值。|2694735|<YourRootViewOfAnyType
xmlns:tools="http://schemas.android.com/tools"
...
tools:layout_marginTop="-200dp"
...
>

</YourRootViewOfAnyType>|code-block|syntax|javascript|2694736|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I found another &amp; pretty cool solution. It's not about size of the layout in preview.
You can simulate scrolling instead, to see the hidden content.

Use with tools, as it has influence only in preview. Then increase/decrease value for "scroll".

<pre><code>&lt;YourRootViewOfAnyType
xmlns:tools="http://schemas.android.com/tools"
...
tools:layout_marginTop="-200dp"
...
&gt;

&lt;/YourRootViewOfAnyType&gt;
</code></pre>

blocks|key|57463|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|57464|这里有一个神奇的解决方案：|blockquote|57465|57466|57467|​|57468|📷|atomic|offset|length|57469|57470|单击突出显示的按钮以增大预览窗口的大小。注意:您可以将大小增加到任何所需的大小！|57471|57472|57473|57474|然后使用缩放按钮进行缩放并查看预览。|57475|57476|57477|57478|下面是它将会是什么样子。|57479|57480|57481|57482|要在应用程序中获取滚动条...|57483|57484|57485|在.xml文件中使用滚动视图作为根视图，然后对布局进行嵌套。|57486|如果你不想让滚动的图片在app中逐渐消失，那就在ScrollView下面添加代码：|57487|android:fadeScrollbars="false"|code-block|syntax|javascript|57488|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/783837fdd06a386e8cfb1ad3d213c887.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/222e704f59f6ef632da72e73425dc8c5.png|2|https://ask.qcloudimg.com/http-save/yehe-900000/7de8b9cc2f2e338a9430a6d51d7460ec.png|3|https://ask.qcloudimg.com/http-save/yehe-900000/846c75b83b488be64383eaf49f6908fd.png|4|https://ask.qcloudimg.com/http-save/yehe-900000/39f1682c9947e2b865a4187e7c4d082c.png^0|0|0|0|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0|0|0|1|2|0|0|0|0|0|1|3|0|0|0|0|1|4|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|1W|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|1X|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|1Y|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|1Z|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|20|7|@]|8|@]|9|$]]|$1|H|3|I|4|J|6|21|7|@]|8|@$K|22|L|23|1|24]]|9|$]]|$1|M|3|G|4|5|6|25|7|@]|8|@]|9|$]]|$1|N|3|O|4|5|6|26|7|@]|8|@]|9|$]]|$1|P|3|G|4|5|6|27|7|@]|8|@]|9|$]]|$1|Q|3|I|4|J|6|28|7|@]|8|@$K|29|L|2A|1|2B]]|9|$]]|$1|R|3|G|4|5|6|2C|7|@]|8|@]|9|$]]|$1|S|3|T|4|5|6|2D|7|@]|8|@]|9|$]]|$1|U|3|G|4|5|6|2E|7|@]|8|@]|9|$]]|$1|V|3|I|4|J|6|2F|7|@]|8|@$K|2G|L|2H|1|2I]]|9|$]]|$1|W|3|G|4|5|6|2J|7|@]|8|@]|9|$]]|$1|X|3|Y|4|5|6|2K|7|@]|8|@]|9|$]]|$1|Z|3|G|4|5|6|2L|7|@]|8|@]|9|$]]|$1|10|3|I|4|J|6|2M|7|@]|8|@$K|2N|L|2O|1|2P]]|9|$]]|$1|11|3|G|4|5|6|2Q|7|@]|8|@]|9|$]]|$1|12|3|13|4|5|6|2R|7|@]|8|@]|9|$]]|$1|14|3|I|4|J|6|2S|7|@]|8|@$K|2T|L|2U|1|2V]]|9|$]]|$1|15|3|G|4|5|6|2W|7|@]|8|@]|9|$]]|$1|16|3|17|4|5|6|2X|7|@]|8|@]|9|$]]|$1|18|3|19|4|5|6|2Y|7|@]|8|@]|9|$]]|$1|1A|3|1B|4|1C|6|2Z|7|@]|8|@]|9|$1D|1E]]|$1|1F|3|-4|4|5|6|30|7|@]|8|@]|9|$]]]|1G|$1H|$4|1I|1J|1K|9|$1L|1M|1N|-4]]|1O|$4|1I|1J|1K|9|$1L|1P|1N|-4]]|1Q|$4|1I|1J|1K|9|$1L|1R|1N|-4]]|1S|$4|1I|1J|1K|9|$1L|1T|1N|-4]]|1U|$4|1I|1J|1K|9|$1L|1V|1N|-4]]]]

<blockquote>
 Here's The Magic Solution :
</blockquote>

<a href="https://i.stack.imgur.com/6UVgg.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6UVgg.png" alt="enter image description here"></a>

Click on the highlighted button to increase the size of the preview window.
Note : You can increase the size to any desired size!

<a href="https://i.stack.imgur.com/WacL4.png" rel="noreferrer"><img src="https://i.stack.imgur.com/WacL4.png" alt="enter image description here"></a>

Then use the zoom button to zoom and see the preview.

<a href="https://i.stack.imgur.com/vChBC.png" rel="noreferrer"><img src="https://i.stack.imgur.com/vChBC.png" alt="enter image description here"></a>

Here's how it will look then.

<a href="https://i.stack.imgur.com/IuxOk.png" rel="noreferrer"><img src="https://i.stack.imgur.com/IuxOk.png" alt="enter image description here"></a>

To get the scroll Bar in application ....<a href="https://i.stack.imgur.com/UemO1.png" rel="noreferrer"><img src="https://i.stack.imgur.com/UemO1.png" alt="enter image description here"></a>

Use scroll view as the root view in your .xml file and then make the nesting of layouts.

If you don't want the scrolling image to fade away in app then add the code under ScrollView : 

<pre><code>android:fadeScrollbars="false"
</code></pre>

blocks|key|2694674|text|如果你把你的布局放在一个ScrollView中，它应该会自动(至少在Android+Studio中)显示你所有的东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2694675|另一种解决办法是制作一个高分辨率的新AVD，比如4000px的高度，并将其用于预览，这对我很有效:)|2694676|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

If you put your layouts in a ScrollView it should automatically (at least in Android Studio) show you everything.

Another workaround is to make a new AVD with a big resolution, something like 4000px height, and use that for preview, worked for me :)

blocks|key|57425|text|打开布局的xml。在预览窗格中，按“显示设计%2B蓝图”按钮。这将在蓝图旁边显示设计。将鼠标悬停在蓝图上，您就可以滚动了。它旁边的设计将同时滚动。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|57426|​|57427|📷|atomic|offset|length|57428|57429|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/e298d65193002e67f1482287544ff81e.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

Open the xml of the layout. In the preview pane press the 'Show Design + Blue print' button. This will show the design along side the blue print. Hover the mouse over the blue print, you'll then be able to scroll. The design beside it will scroll simultaneously.

<a href="https://i.stack.imgur.com/tcH47.png" rel="noreferrer"><img src="https://i.stack.imgur.com/tcH47.png" alt="enter image description here"></a>

blocks|key|56722|text|现在更新你的android+studio，你可以在滚动的同时看到预览。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|56723|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|$]]

Update your android studio now you can see the preview while scrolling .

blocks|key|56704|text|正如Verdan回答的那样，您应该使用ScrollView。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|56705|但诀窍是ScrollView必须是您的根布局(至少是临时的)。|56706|因此，只需将所有布局包装到一个ScrollView中(即使您有另一个嵌套的布局或ListView)。|56707|<ScrollView+xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">



</ScrollView>|code-block|syntax|javascript|56708|然后，您将在预览中看到所有布局。|56709|当你做完的时候，你可以直接移除它|56710|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|T|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

As Verdan answered, you should use a ScrollView. 
But the trick is that the ScrollView must be your root layout (at least temporary). 
So just wrap all your layout into a ScrollView (even though you have another nested one or a ListView).

<pre><code>&lt;ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"&gt;

&lt;!-- PUT All YOUR STUFF HERE --&gt;

&lt;/ScrollView&gt;
</code></pre>

Then you will see all your layout in the preview. 
And when your are done you can just remove it

blocks|key|1962897|text|打开Android+Studio设计视图单击蓝色切换设计或蓝图按钮选择设计%2B蓝图|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1962898|现在将鼠标悬停在蓝图视图上，当您滚动时，您的设计布局也将自动滚动，显示完整的视图。|1962899|📷|atomic|offset|length|1962900|​|1962901|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/813e676ac10e85515c9d11b97d3b8433.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|V|8|@]|9|@$G|W|H|X|1|Y]]|A|$]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R|S|-4]]]]

Open Android Studio Design View
Click on the Blue Toggle Design or Blue Print Button
Select Design + Blue Print

Now hover on the blueprint view and when you scroll your design layout will also scroll automatically showing you the complete view.<a href="https://i.stack.imgur.com/NXyJp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NXyJp.png" alt="See Example"></a>

blocks|key|56813|text|在Android+Studio+4.1中，您可以轻松地通过拖动相应的按钮来增加预览高度：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|56814|​|56815|📷|atomic|56816|56817|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/b18965b679836d67ea3290417a38d693.png|imageAlt^0|G|3|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|K|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S|T|-4]]]]

In Android Studio <code>4.1</code> you can easily increase height of preview by dragging the corresponding button:
<a href="https://i.stack.imgur.com/aSUrU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aSUrU.png" alt="Expand preview size button" /></a>

I have a long Screen, and i set ScrollView, but in Preview screen in Android Studio i do not see part of the Screen. How i can see it?<img src="https://i.stack.imgur.com/yUjIX.png" alt="enter image description here">

How i can see long layout in preview in Android Studio

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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我有一个很长的屏幕，我设置了ScrollView，但在Android Studio的预览屏幕中，我看不到屏幕的一部分。我怎么能看到它呢？​

问如何在Android Studio中查看预览中的长布局
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