| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.inputmethod.compat; |
| |
| import java.lang.reflect.Method; |
| |
| public final class CharacterCompat { |
| // Note that Character.isAlphabetic(int), has been introduced in API level 19 |
| // (Build.VERSION_CODE.KITKAT). |
| private static final Method METHOD_isAlphabetic = CompatUtils.getMethod( |
| Character.class, "isAlphabetic", int.class); |
| |
| private CharacterCompat() { |
| // This utility class is not publicly instantiable. |
| } |
| |
| public static boolean isAlphabetic(final int code) { |
| if (METHOD_isAlphabetic != null) { |
| return (Boolean)CompatUtils.invoke(null, false, METHOD_isAlphabetic, code); |
| } |
| switch (Character.getType(code)) { |
| case Character.UPPERCASE_LETTER: |
| case Character.LOWERCASE_LETTER: |
| case Character.TITLECASE_LETTER: |
| case Character.MODIFIER_LETTER: |
| case Character.OTHER_LETTER: |
| case Character.LETTER_NUMBER: |
| return true; |
| default: |
| return false; |
| } |
| } |
| } |