Icebreaker7

 

Caused by: android.view.InflateException: Binary XML file line #2 in com.example.materialtest:layout/fruit_item: Error inflating class com.google.android.material.card.MaterialCardView

在学习《Android第一行代码》的14.5章节深色主题的内容时,该章节是以MaterialTest项目作为示例的,并且在res目录下创建了一个values-29目录,在values-29目录下又创建了一个styles.xml文件。
书上的源码是编写如下代码:

<resources>
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:forceDarkAllowed">true</item>
    </style>
</resources>

按照该代码编写以后,重新运行项目,发现报错:

2022-11-17 23:12:15.448 24235-24235/com.example.materialtest E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.materialtest, PID: 24235
    android.view.InflateException: Binary XML file line #2 in com.example.materialtest:layout/fruit_item: Binary XML file line #2 in com.example.materialtest:layout/fruit_item: Error inflating class com.google.android.material.card.MaterialCardView
    Caused by: android.view.InflateException: Binary XML file line #2 in com.example.materialtest:layout/fruit_item: Error inflating class com.google.android.material.card.MaterialCardView
    Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance0(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
        at android.view.LayoutInflater.createView(LayoutInflater.java:852)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:657)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
        at com.example.materialtest.FruitAdapter.onCreateViewHolder(FruitAdapter.kt:22)
        at com.example.materialtest.FruitAdapter.onCreateViewHolder(FruitAdapter.kt:13)
        at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:7078)
        ...

即使定位到对应的代码也没发现哪里有错,还以为是之前学习Kotlin的时候写的几个kt文件导致的,删除以后也是一样报错。
当看到书上有一句话:

除了...属性之外,其他的内容都是从之前的styles.xml文件中复制过来的

于是,立马找到res/values/styles.xml文件,打开查看之后发现,AppTheme的parent指定的是Theme.MaterialComponents.Light.NoActionBar

<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
        ...
</style>

回到values-29的styles.xml文件,把parent属性改过来,重新运行程序,发现界面风格换成了深色主题

posted on 2022-11-17 23:43  Icebreaker_7  阅读(227)  评论(0编辑  收藏  举报

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