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