Add first implementation of LocaleList. (0ba0d6bb) · Commits · e / os / android_frameworks_base

api/current.txt

+9 −0

Original line number	Diff line number	Diff line
		@@ -34141,6 +34141,15 @@ package android.util {
		field public static final int RTL = 1; // 0x1
		}

		public final class LocaleList {
		ctor public LocaleList();
		ctor public LocaleList(java.util.Locale[]);
		method public java.util.Locale get(int);
		method public java.util.Locale getPrimary();
		method public boolean isEmpty();
		method public int size();
		}

		public final class Log {
		method public static int d(java.lang.String, java.lang.String);
		method public static int d(java.lang.String, java.lang.String, java.lang.Throwable);

api/system-current.txt

+9 −0

Original line number	Diff line number	Diff line
		@@ -36474,6 +36474,15 @@ package android.util {
		field public static final int RTL = 1; // 0x1
		}

		public final class LocaleList {
		ctor public LocaleList();
		ctor public LocaleList(java.util.Locale[]);
		method public java.util.Locale get(int);
		method public java.util.Locale getPrimary();
		method public boolean isEmpty();
		method public int size();
		}

		public final class Log {
		method public static int d(java.lang.String, java.lang.String);
		method public static int d(java.lang.String, java.lang.String, java.lang.Throwable);

core/java/android/util/LocaleList.java

0 → 100644

+82 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2015 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 android.util;

		import android.annotation.Nullable;

		import java.util.HashSet;
		import java.util.Locale;

		// TODO: We don't except too many LocaleLists to exist at the same time, and
		// we need access to the data at native level, so we should pass the data
		// down to the native level, create a mapt of every list seen there, take a
		// pointer back, and just keep that pointed in the Java-level object, so
		// things could be copied very quickly.

		/**
		* LocaleList is an immutable list of Locales, typically used to keep an
		* ordered user preferences for locales.
		*/
		public final class LocaleList {
		private final Locale[] mList;
		private static final Locale[] sEmptyList = new Locale[0];

		public Locale get(int location) {
		return location < mList.length ? mList[location] : null;
		}

		public Locale getPrimary() {
		return mList.length == 0 ? null : get(0);
		}

		public boolean isEmpty() {
		return mList.length == 0;
		}

		public int size() {
		return mList.length;
		}

		public LocaleList() {
		mList = sEmptyList;
		}

		/**
		* @throws NullPointerException if any of the input locales is <code>null</code>.
		* @throws IllegalArgumentException if any of the input locales repeat.
		*/
		public LocaleList(@Nullable Locale[] list) {
		if (list == null \|\| list.length == 0) {
		mList = sEmptyList;
		} else {
		final Locale[] localeList = new Locale[list.length];
		final HashSet<Locale> seenLocales = new HashSet<Locale>();
		for (int i = 0; i < list.length; ++i) {
		final Locale l = list[i];
		if (l == null) {
		throw new NullPointerException();
		} else if (seenLocales.contains(l)) {
		throw new IllegalArgumentException();
		} else {
		seenLocales.add(l);
		localeList[i] = (Locale) l.clone();
		}
		}
		mList = localeList;
		}
		}
		}