Android开发The style on this component requires your app theme to be Theme.AppCompat (or a descendant)的解决方法

问题:

Caused by: android.view.InflateException: Binary XML file line #100 in xxx_layout: Binary XML file line #100 in xxx_layout: Error inflating class com.google.android.material.XXX
Caused by: android.view.InflateException: Binary XML file line #100 in xxx_layout: Error inflating class com.google.android.material.XXX
Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance0(Native Method)
        ...
Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.AppCompat (or a descendant).

原因:

xml布局中使用了Material控件,所以要求Application或者该Activity的android:theme样式必须是Theme.AppCompa或者其子样式。
那么问题来了?就必须将android:theme样式改为Theme.AppCompa或者其子样式吗?怎么区分是不是Theme.AppCompa样式呢?
其实使用了Material控件,只需要Theme.AppCompa或者其子样式包含colorPrimary、colorPrimaryDark、colorAccent这三个名称的颜色即可。

解决方法

<style name="MyTheme" parent="@android:style/Theme.Material.Light.NoActionBar">
	...
	<!--添加下面三个名称的颜色(颜色值随便),MyTheme这个样式满足Theme.AppCompa,就可以解决上面问题-->
	<item name="colorPrimary">#ffff00</item>
	<item name="colorPrimaryDark">#ff00ff</item>
	<item name="colorAccent">#ff0000</item>
</style>
posted @ 2021-07-21 17:32  yongfengnice  阅读(3304)  评论(3编辑  收藏  举报