56 lines
1.9 KiB
Java
56 lines
1.9 KiB
Java
|
/*
|
||
|
|
* Copyright (C) 2013 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.latin.utils;
|
||
|
|
|
||
|
|
import android.content.res.Configuration;
|
||
|
|
import android.content.res.Resources;
|
||
|
|
|
||
|
|
import java.util.Locale;
|
||
|
|
|
||
|
|
public abstract class RunInLocale<T> {
|
||
|
|
private static final Object sLockForRunInLocale = new Object();
|
||
|
|
|
||
|
|
protected abstract T job(final Resources res);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Execute {@link #job(Resources)} method in specified system locale exclusively.
|
||
|
|
*
|
||
|
|
* @param res the resources to use.
|
||
|
|
* @param newLocale the locale to change to.
|
||
|
|
* @return the value returned from {@link #job(Resources)}.
|
||
|
|
*/
|
||
|
|
public T runInLocale(final Resources res, final Locale newLocale) {
|
||
|
|
synchronized (sLockForRunInLocale) {
|
||
|
|
final Configuration conf = res.getConfiguration();
|
||
|
|
final Locale oldLocale = conf.locale;
|
||
|
|
final boolean needsChange = (newLocale != null && !newLocale.equals(oldLocale));
|
||
|
|
try {
|
||
|
|
if (needsChange) {
|
||
|
|
conf.locale = newLocale;
|
||
|
|
res.updateConfiguration(conf, null);
|
||
|
|
}
|
||
|
|
return job(res);
|
||
|
|
} finally {
|
||
|
|
if (needsChange) {
|
||
|
|
conf.locale = oldLocale;
|
||
|
|
res.updateConfiguration(conf, null);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|