package com.luck.picture.lib.language;
|
|
import android.app.Activity;
|
import android.content.Context;
|
import android.content.res.Configuration;
|
import android.content.res.Resources;
|
import android.os.Build;
|
import android.util.DisplayMetrics;
|
|
import androidx.annotation.NonNull;
|
|
import com.luck.picture.lib.tools.SPUtils;
|
|
import java.lang.ref.WeakReference;
|
import java.util.Locale;
|
|
/**
|
* @author：luck
|
* @data：2018/3/28 下午1:00
|
* @描述: PictureLanguageUtils
|
*/
|
public class PictureLanguageUtils {
|
|
private static final String KEY_LOCALE = "KEY_LOCALE";
|
private static final String VALUE_FOLLOW_SYSTEM = "VALUE_FOLLOW_SYSTEM";
|
|
private PictureLanguageUtils() {
|
throw new UnsupportedOperationException("u can't instantiate me...");
|
}
|
|
/**
|
* init app the language
|
*
|
* @param context
|
* @param languageId
|
*/
|
public static void setAppLanguage(Context context, int languageId) {
|
WeakReference<Context> contextWeakReference = new WeakReference<>(context);
|
if (languageId >= 0) {
|
applyLanguage(contextWeakReference.get(), LocaleTransform.getLanguage(languageId));
|
} else {
|
setDefaultLanguage(contextWeakReference.get());
|
}
|
}
|
|
/**
|
* Apply the language.
|
*
|
* @param locale The language of locale.
|
*/
|
private static void applyLanguage(@NonNull Context context, @NonNull final Locale locale) {
|
applyLanguage(context, locale, false);
|
}
|
|
|
private static void applyLanguage(@NonNull Context context, @NonNull final Locale locale,
|
final boolean isFollowSystem) {
|
if (isFollowSystem) {
|
SPUtils.getPictureSpUtils().put(KEY_LOCALE, VALUE_FOLLOW_SYSTEM);
|
} else {
|
String localLanguage = locale.getLanguage();
|
String localCountry = locale.getCountry();
|
SPUtils.getPictureSpUtils().put(KEY_LOCALE, localLanguage + "$" + localCountry);
|
}
|
|
updateLanguage(context, locale);
|
}
|
|
|
private static void updateLanguage(Context context, Locale locale) {
|
Resources resources = context.getResources();
|
Configuration config = resources.getConfiguration();
|
Locale contextLocale = config.locale;
|
if (equals(contextLocale.getLanguage(), locale.getLanguage())
|
&& equals(contextLocale.getCountry(), locale.getCountry())) {
|
return;
|
}
|
DisplayMetrics dm = resources.getDisplayMetrics();
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
|
config.setLocale(locale);
|
context.createConfigurationContext(config);
|
} else {
|
config.locale = locale;
|
}
|
resources.updateConfiguration(config, dm);
|
}
|
|
/**
|
* set default language
|
*
|
* @param context
|
*/
|
private static void setDefaultLanguage(Context context) {
|
Resources resources = context.getResources();
|
Configuration config = resources.getConfiguration();
|
DisplayMetrics dm = resources.getDisplayMetrics();
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
|
config.setLocale(config.locale);
|
context.createConfigurationContext(config);
|
}
|
resources.updateConfiguration(config, dm);
|
}
|
|
private static boolean equals(final CharSequence s1, final CharSequence s2) {
|
if (s1 == s2) return true;
|
int length;
|
if (s1 != null && s2 != null && (length = s1.length()) == s2.length()) {
|
if (s1 instanceof String && s2 instanceof String) {
|
return s1.equals(s2);
|
} else {
|
for (int i = 0; i < length; i++) {
|
if (s1.charAt(i) != s2.charAt(i)) return false;
|
}
|
return true;
|
}
|
}
|
return false;
|
}
|
}
|
