Android Studio XML 小部件无法在设计器中正确呈现 [英] Android Studio XML Widgets not rendering properly in designer

问题描述

最近，在处理一些项目时，我在编写应用程序的用户界面时遇到了一个相当烦人的问题.问题是，某些控件(通常是浮动操作按钮或常规按钮)呈现异常.我很难准确地解释它的如何 - 但这里有一个示例，说明它如何在设计器中显示浮动操作按钮的外观:

Recently, while working on some projects, I've had a rather annoying problem when coding the user interface of my application. The problem is, some controls (usually a floating action button or a regular button) render strangely. It's hard for me to explain exactly how it looks - but here's an example of how it shows the floating action button to look like in the designer:

代码:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:baselineAligned="false"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:layout_width="wrap_content"
        android:src="@drawable/ic_baseline_add_24"
        android:layout_height="wrap_content"/>


</LinearLayout>

现在，问题是，我没有添加任何奇怪的或特殊的代码，XML 代码是纯粹的，所以我不知道为什么我会遇到这些奇怪的渲染问题.

Now, the thing is, I don't have any weird or special code added, the XML code is as pure as it gets, so I have no idea why I am having these strange rendering problems.

这是它呈现以下按钮的方式:

Here is how it rendered the following button:

代码:

 <com.google.android.material.button.MaterialButton
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="Submit"
      android:layout_gravity="bottom"
      android:textAllCaps="false"
      android:layout_margin="30dp"
      app:cornerRadius="30dp"
      android:id="@+id/submitButton"
      android:backgroundTint="@color/turquoise"
      />

图片:

非常感谢解决方案！

干杯，汤姆

推荐答案

解决方案很简单，您只需要重新启动 android 渲染引擎.我为您的上下文提供了 Image .在布局显示上方的android studio右上角有切换问题面板点击它，你会在底部看到一个显示渲染问题的框重启渲染引擎，这将重新启动你的安卓工作室.你很高兴去.试试这个解决方案，让我知道您的问题是否已解决.

Solution is simple u just need to restart your android rendering engine. I provided Image for your context . In android studio top right corner above layout display there is Toggle issue panel click on that and u will see one box in the bottom showing rendering issue restart rendering engine and that will restart your android studio. and u good to go. try this solution and let me know your issue is solved or not.

注意:在我的图像中，我已经重新启动，因此没有重新启动渲染引擎的选项.但在您的图像中，您可能会发现希望如此.

note: In my Image I already restarted so there is no option for restart rendering engine .but in yours's U may be find hope so.

图片

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