原因:

出現(xiàn)Only fullscreen opaque activities can request orientation這個(gè)問(wèn)題是因?yàn)?.0之前全屏不透明活動(dòng)不可以請(qǐng)求方向 要不然只能設(shè)置不透明煮盼，你看看這扯淡不，我要是不設(shè)置透明我還會(huì)碰見(jiàn)這種情況带污？ 那么有沒(méi)有辦法解決呢僵控？ 那肯定是有的

解決方案:

優(yōu)雅的方式：Hook反射繞過(guò)檢查

聽(tīng)起來(lái)是不是很cool

思路：

判斷是否透明色或者懸浮
修改activity的屏幕方向，不固定鱼冀，繞過(guò)檢查报破。

public class ActivityHook {


    /**
     * java.lang.IllegalStateException: Only fullscreen opaque activities can request orientation
     * <p>
     * 修復(fù)android 8.0存在的問(wèn)題
     * <p>
     * 在Activity中onCreate()中super之前調(diào)用
     *
     * @param activity
     */
    public static void hookOrientation(Activity activity) {
        //目標(biāo)版本8.0及其以上
        if (activity.getApplicationInfo().targetSdkVersion >= Build.VERSION_CODES.O) {
            if (isTranslucentOrFloating(activity)) {
                fixOrientation(activity);
            }
        }
    }

    /**
     * 設(shè)置屏幕不固定，繞過(guò)檢查
     *
     * @param activity
     */
    private static void fixOrientation(Activity activity) {
        try {
            Class<Activity> activityClass = Activity.class;
            Field mActivityInfoField = activityClass.getDeclaredField("mActivityInfo");
            mActivityInfoField.setAccessible(true);
            ActivityInfo activityInfo = (ActivityInfo) mActivityInfoField.get(activity);
            //設(shè)置屏幕不固定
            activityInfo.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 檢查屏幕 橫豎屏或者鎖定就是固定
     *
     * @param activity
     * @return
     */
    private static boolean isTranslucentOrFloating(Activity activity) {
        boolean isTranslucentOrFloating = false;
        try {
            Class<?> styleableClass = Class.forName("com.android.internal.R$styleable");
            Field WindowField = styleableClass.getDeclaredField("Window");
            WindowField.setAccessible(true);
            int[] styleableRes = (int[]) WindowField.get(null);
            //先獲取到TypedArray
            final TypedArray typedArray = activity.obtainStyledAttributes(styleableRes);
            Class<?> ActivityInfoClass = ActivityInfo.class;
            //調(diào)用檢查是否屏幕旋轉(zhuǎn)
            Method isTranslucentOrFloatingMethod = ActivityInfoClass.getDeclaredMethod("isTranslucentOrFloating", TypedArray.class);
            isTranslucentOrFloatingMethod.setAccessible(true);
            isTranslucentOrFloating = (boolean) isTranslucentOrFloatingMethod.invoke(null, typedArray);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return isTranslucentOrFloating;
    }


}

在需要的Activity中使用

 @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
         
         ActivityHook.hookOrientation(this);//hook千绪，繞過(guò)檢查
         
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_xxxx);

    }

試一下充易，是不是問(wèn)題就解決了呢 尿啊~~
大家快去解決問(wèn)題吧！