各个手机品牌手机的刘海屏检测

public static boolean hasNotchInScreen(Activity activity) {
    // android  P 以上有标准 API 来判断是否有刘海屏
    if (Build.VERSION.SDK_INT >= 28) {
        try {
            DisplayCutout displayCutout = activity.getWindow().getDecorView().getRootWindowInsets().getDisplayCutout();
            if (displayCutout != null) {
                // 说明有刘海屏
                return true;
            }
        } catch (Exception e) {
            return false;
        }
    } else {
        // 通过其他方式判断是否有刘海屏  目前官方提供有开发文档的就 小米，vivo，华为（荣耀），oppo
        String manufacturer = Build.MANUFACTURER;
        if (manufacturer == null || manufacturer.length() == 0) {
            return false;
        } else if (manufacturer.equalsIgnoreCase("HUAWEI")) {
            return hasNotchHw(activity);
        } else if (manufacturer.equalsIgnoreCase("xiaomi")) {
            return hasNotchXiaoMi(activity);
        } else if (manufacturer.equalsIgnoreCase("oppo")) {
            return hasNotchOPPO(activity);
        } else if (manufacturer.equalsIgnoreCase("vivo")) {
            return hasNotchVIVO(activity);
        } else {
            return false;
        }
    }
    return false;
}

public static boolean hasNotchVIVO(Activity activity) {
    try {
        Class<?> c = Class.forName("android.util.FtFeature");
        Method get = c.getMethod("isFeatureSupport", int.class);
        return (boolean) (get.invoke(c, 0x20));
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
}

public static boolean hasNotchOPPO(Activity activity) {
    try {
        return activity.getPackageManager().hasSystemFeature("com.oppo.feature.screen.heteromorphism");
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}

public static boolean hasNotchXiaoMi(Activity activity) {
    try {
        Class<?> c = Class.forName("android.os.SystemProperties");
        Method get = c.getMethod("getInt", String.class, int.class);
        return (int) (get.invoke(c, "ro.miui.notch", 1)) == 1;
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
}

public static boolean hasNotchHw(Activity activity) {
    try {
        ClassLoader cl = activity.getClassLoader();
        Class HwNotchSizeUtil = cl.loadClass("com.huawei.android.util.HwNotchSizeUtil");
        Method get = HwNotchSizeUtil.getMethod("hasNotchInScreen");
        return (boolean) get.invoke(HwNotchSizeUtil);
    } catch (Exception e) {
        return false;
    }
}