Android 8.0——Only fullscreen opaque activities can request orientation
Only fullscreen opaque activities can request orientation
,也就是说只有全屏不透明的activity才可以设置方向
解决办法->
1.找到你设置透明的Activity,然后在他的theme中将android:windowIsTranslucent
改为false
eg:<item name="android:windowIsTranslucent">false</item>
2.再加入<item name="android:windowDisablePreview">true</item>
就搞定了