Android判断是否为刘海屏

主要总结主流品牌小米、华为、oppo、vivo的刘海屏判断。在某些特殊页面需要适配刘海屏时，可以用以下方法判断。
或者判断屏幕比例是否大于2。

/**
 * 小米刘海屏判断.
 */

    public static int getInt(String key,Activity activity) {
        int result = 0;
        if (isXiaomi()){
            try {
                ClassLoader classLoader = activity.getClassLoader();
                @SuppressWarnings("rawtypes")
                Class SystemProperties = classLoader.loadClass("android.os.SystemProperties");
                //参数类型
                @SuppressWarnings("rawtypes")
                Class[] paramTypes = new Class[2];
                paramTypes[0] = String.class;
                paramTypes[1] = int.class;
                Method getInt = SystemProperties.getMethod("getInt", paramTypes);
                //参数
                Object[] params = new Object[2];
                params[0] = new String(key);
                params[1] = new Integer(0);
                result = (Integer) getInt.invoke(SystemProperties, params);

            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            } catch (NoSuchMethodException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (InvocationTargetException e) {
                e.printStackTrace();
            }
        }
        return result;
    }

    // 是否是小米手机
    public static boolean isXiaomi() {
        return "Xiaomi".equals(Build.MANUFACTURER);
    }

/**
 * 华为刘海屏判断
 */

    public static boolean hasNotchAtHuawei(Context context) {
        boolean ret = false;
        try {
            ClassLoader cl = context.getClassLoader();
            Class HwNotchSizeUtil = cl.loadClass("com.huawei.android.util.HwNotchSizeUtil");
            Method get = HwNotchSizeUtil.getMethod("hasNotchInScreen");
            ret = (boolean) get.invoke(HwNotchSizeUtil);
        } catch (ClassNotFoundException e) {
            LogUtil.e("Huawei", "hasNotchInScreen ClassNotFoundException");
        } catch (NoSuchMethodException e) {
            LogUtil.e("Huawei", "hasNotchInScreen NoSuchMethodException");
        } catch (Exception e) {
            LogUtil.e("Huawei", "hasNotchInScreen Exception");
        } finally {
            return ret;
        }
    }

/**
 * VIVO刘海屏判断
 */

    public static final int VIVO_NOTCH = 0x00000020;//是否有刘海
    public static final int VIVO_FILLET = 0x00000008;//是否有圆角

    public static boolean hasNotchAtVivo(Context context) {
        boolean ret = false;
        try {
            ClassLoader classLoader = context.getClassLoader();
            Class FtFeature = classLoader.loadClass("android.util.FtFeature");
            Method method = FtFeature.getMethod("isFeatureSupport", int.class);
            ret = (boolean) method.invoke(FtFeature, VIVO_NOTCH);
        } catch (ClassNotFoundException e) {
            LogUtil.e( "Vivo","hasNotchAtVivo ClassNotFoundException");
        } catch (NoSuchMethodException e) {
            LogUtil.e(  "Vivo","hasNotchAtVivo NoSuchMethodException");
        } catch (Exception e) {
            LogUtil.e(  "Vivo","hasNotchAtVivo Exception");
        } finally {
            return ret;
        }
    }

/**
 * OPPO刘海屏判断
 */

    public static boolean hasNotchAtOPPO(Context context) {
        return  context.getPackageManager().hasSystemFeature("com.oppo.feature.screen.heteromorphism");
    }

By LiYing