预览未在 Android 3.0 Canary 中显示 [英] Preview not Showing in Android 3.0 Canary

问题描述

我已开始使用最新的 Android Studio 3.0，但在预览时遇到问题.它没有在预览选项卡中显示预览.这是我所做的

I have started using Latest Android Studio 3.0 but I am having a problem with Preview. It's not showing Preview in Preview Tab. Here is what I have done

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/white">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/white">

            <include
                android:id="@+id/activePlanCard"
                layout="@layout/layout_item_activated_plan" />

            <TextView
                android:id="@+id/DashView"
                android:layout_width="match_parent"
                android:layout_height="10dp"
                android:layout_below="@id/activePlanCard"
                android:background="@drawable/drw_dash_line" />

            <TextView
                android:id="@+id/provideAddress"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/DashView"
                android:layout_margin="10dp"
                android:text="Provide Address Detail :" />
      </RelativeLayout>
    </ScrollView>
</layout>

非常感谢您在这方面的帮助

Your assistance in this matter will be greatly appreciated

谢谢..

推荐答案

以下更改为我解决了这个问题:

The following change solved this for me:

在styles.xml (app > res > values) 中，在基础应用主题中 - 在父样式之前添加base".

In the styles.xml (app > res > values), in the base application theme - add "base" before the parent style.

来自:

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">

致:

<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">

这篇关于预览未在 Android 3.0 Canary 中显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！