项目代码中设置手机为竖屏报错了，报了 Only fullscreen activities can request orientation. 报错代码如下
if (getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
网上有多种方法，最后用了一个反射顺利解决，代码如下：
if (Build.VERSION.SDK_INT >= 26) {
convertActivityFromTranslucent(this);
}
public static void convertActivityFromTranslucent(Activity activity) {
try {
Method method = Activity.class.getDeclaredMethod("convertFromTranslucent");
method.setAccessible(true);
method.invoke(activity);
} catch (Throwable t) {
}
}
