Android studio新建項(xiàng)目xml文件不顯示Preview問題解決方法

報(bào)錯(cuò)如下：

1、The following classes could not be instantiated:

2、The following classes could no

3、Failed to load AppCompat ActionBar with unknown error.

找到values文件夾下面的styles.xml打開

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"><!-- Customize your theme here. --><item name="colorPrimary">@color/colorPrimary</item><item name="colorPrimaryDark">@color/colorPrimaryDark</item><item name="colorAccent">@color/colorAccent</item> </style>

把DarkActionBar改為NoActionBar。再Rebuild Project即可

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"><!-- Customize your theme here. --><item name="colorPrimary">@color/colorPrimary</item><item name="colorPrimaryDark">@color/colorPrimaryDark</item><item name="colorAccent">@color/colorAccent</item> </style>

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