InputLanguageSelection.java 文件源码

@Override
protected void onPause() {
    super.onPause();
    // Save the selected languages
    String checkedLanguages = "";
    PreferenceGroup parent = getPreferenceScreen();
    int count = parent.getPreferenceCount();
    for (int i = 0; i < count; i++) {
        CheckBoxPreference pref = (CheckBoxPreference) parent.getPreference(i);
        if (pref.isChecked()) {
            Locale locale = mAvailableLanguages.get(i).locale;
            checkedLanguages += get5Code(locale) + ",";
        }
    }
    if (checkedLanguages.length() < 1) checkedLanguages = null; // Save null
    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
    Editor editor = sp.edit();
    editor.putString(LatinIME.PREF_SELECTED_LANGUAGES, checkedLanguages);
    SharedPreferencesCompat.apply(editor);
}