目前支持判断华为、oppo、vivo的刘海屏手机

public class DisplayCutoutUtils {

    private Context mContext;

    public DisplayCutoutUtils(Context mContext) {
        this.mContext = mContext;
    }

    /**
     * @return 返回是否有刘海屏
     */
    public boolean hasNotchInScreen() {
        if (PhoneDetector.isEmui()) {
            boolean ret = false;
            try {
                ClassLoader cl = mContext.getClassLoader();
                Class HwNotchSizeUtil = cl.loadClass("com.huawei.android.util.HwNotchSizeUtil");
                Method get = HwNotchSizeUtil.getMethod("hasNotchInScreen");
                ret = (boolean) get.invoke(HwNotchSizeUtil);
            } catch (ClassNotFoundException e) {
                Log.e("test", "hasNotchInScreen ClassNotFoundException");
            } catch (NoSuchMethodException e) {
                Log.e("test", "hasNotchInScreen NoSuchMethodException");
            } catch (Exception e) {
                Log.e("test", "hasNotchInScreen Exception");
            } finally {
                return ret;
            }
        } else if (PhoneDetector.isOppo()) {
            return mContext.getPackageManager()
                    .hasSystemFeature("com.oppo.feature.screen.heteromorphism");
        } else if (PhoneDetector.isVivo()) {
            boolean ret = false;
            try {
                ClassLoader cl = mContext.getClassLoader();
                Class FtFeature = cl.loadClass("com.util.FtFeature");
                Method get = FtFeature.getMethod("isFeatureSupport", int.class);
                ret = (boolean) get.invoke(FtFeature, 0x00000020);

            } catch (ClassNotFoundException e) {
                Log.e("test", "hasNotchInScreen ClassNotFoundException");
            } catch (NoSuchMethodException e) {
                Log.e("test", "hasNotchInScreen NoSuchMethodException");
            } catch (Exception e) {
                Log.e("test", "hasNotchInScreen Exception");
            } finally {
                return ret;
            }
        }
        return false;
    }


}