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Optimize InputLanguageSelection

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Change-Id: I49117a1e5f7766fcfa0140ff602ff1e19ba1e3d2
This commit is contained in:
satok 2011-04-21 18:05:27 +09:00
parent bdb3d6909a
commit 9ee51db95b
1 changed files with 24 additions and 33 deletions
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57
java/src/com/android/inputmethod/deprecated/languageswitcher/InputLanguageSelection.java
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@ -37,6 +37,7 @@ import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.PreferenceManager;
import android.text.TextUtils;
import android.util.Pair;
import java.io.IOException;
import java.text.Collator;
@ -88,14 +89,17 @@ public class InputLanguageSelection extends PreferenceActivity {
PreferenceGroup parent = getPreferenceScreen();
for (int i = 0; i < mAvailableLanguages.size(); i++) {
Locale locale = mAvailableLanguages.get(i).mLocale;
if (!hasDictionary(locale) && !hasLayout(locale)) {
final Pair<Boolean, Boolean> hasDictionaryOrLayout = hasDictionaryOrLayout(locale);
final boolean hasDictionary = hasDictionaryOrLayout.first;
final boolean hasLayout = hasDictionaryOrLayout.second;
if (!hasDictionary && !hasLayout) {
continue;
}
CheckBoxPreference pref = new CheckBoxPreference(this);
pref.setTitle(SubtypeSwitcher.getFullDisplayName(locale, true));
boolean checked = isLocaleIn(locale, languageList);
pref.setChecked(checked);
if (hasDictionary(locale)) {
if (hasDictionary) {
pref.setSummary(R.string.has_dictionary);
}
parent.addPreference(pref);
@ -110,52 +114,39 @@ public class InputLanguageSelection extends PreferenceActivity {
return false;
}
private boolean hasDictionary(Locale locale) {
final Resources res = getResources();
final Configuration conf = res.getConfiguration();
final Locale saveLocale = conf.locale;
boolean haveDictionary = false;
conf.locale = locale;
res.updateConfiguration(conf, res.getDisplayMetrics());
BinaryDictionary bd = BinaryDictionary.initDictionaryFromManager(this, Suggest.DIC_MAIN,
locale, Utils.getMainDictionaryResourceId(res));
// Is the dictionary larger than a placeholder? Arbitrarily chose a lower limit of
// 4000-5000 words, whereas the LARGE_DICTIONARY is about 20000+ words.
if (bd.getSize() > Suggest.LARGE_DICTIONARY_THRESHOLD / 4) {
haveDictionary = true;
}
bd.close();
conf.locale = saveLocale;
res.updateConfiguration(conf, res.getDisplayMetrics());
return haveDictionary;
}
private boolean hasLayout(Locale locale) {
if (locale == null) return false;
private Pair<Boolean, Boolean> hasDictionaryOrLayout(Locale locale) {
if (locale == null) return new Pair<Boolean, Boolean>(false, false);
final Resources res = getResources();
final Configuration conf = res.getConfiguration();
final Locale saveLocale = conf.locale;
conf.locale = locale;
res.updateConfiguration(conf, res.getDisplayMetrics());
boolean hasDictionary = false;
boolean hasLayout = false;
try {
BinaryDictionary bd = BinaryDictionary.initDictionaryFromManager(this, Suggest.DIC_MAIN,
locale, Utils.getMainDictionaryResourceId(res));
// Is the dictionary larger than a placeholder? Arbitrarily chose a lower limit of
// 4000-5000 words, whereas the LARGE_DICTIONARY is about 20000+ words.
if (bd.getSize() > Suggest.LARGE_DICTIONARY_THRESHOLD / 4) {
hasDictionary = true;
}
bd.close();
final String countryCode = locale.getLanguage();
final String layoutCountryCode = KeyboardParser.parseKeyboardLocale(
this, R.xml.kbd_qwerty);
if (!TextUtils.isEmpty(countryCode) && !TextUtils.isEmpty(layoutCountryCode)) {
return countryCode.subSequence(0, 2).equals(layoutCountryCode.substring(0, 2));
hasLayout = countryCode.subSequence(0, 2).equals(layoutCountryCode.substring(0, 2));
}
return false;
} catch (XmlPullParserException e) {
return false;
} catch (IOException e) {
return false;
} finally {
conf.locale = saveLocale;
res.updateConfiguration(conf, res.getDisplayMetrics());
}
conf.locale = saveLocale;
res.updateConfiguration(conf, res.getDisplayMetrics());
return new Pair<Boolean, Boolean>(hasDictionary, hasLayout);
}
private String get5Code(Locale locale) {