73 lines
2.5 KiB
Java
73 lines
2.5 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import android.speech.tts.TtsEngines;
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import android.support.v7.preference.Preference;
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import android.support.v7.preference.PreferenceCategory;
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import android.support.v7.preference.PreferenceGroup;
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/**
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* Settings screen for voice input/output.
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*/
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public class VoiceInputOutputSettings {
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private static final String TAG = "VoiceInputOutputSettings";
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private static final String KEY_VOICE_CATEGORY = "voice_category";
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private static final String KEY_TTS_SETTINGS = "tts_settings";
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private PreferenceGroup mParent;
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private PreferenceCategory mVoiceCategory;
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private Preference mVoiceInputSettingsPref;
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private Preference mTtsSettingsPref;
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private final SettingsPreferenceFragment mFragment;
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private final TtsEngines mTtsEngines;
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public VoiceInputOutputSettings(SettingsPreferenceFragment fragment) {
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mFragment = fragment;
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mTtsEngines = new TtsEngines(fragment.getPreferenceScreen().getContext());
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}
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public void onCreate() {
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mParent = mFragment.getPreferenceScreen();
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mVoiceCategory = (PreferenceCategory) mParent.findPreference(KEY_VOICE_CATEGORY);
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mTtsSettingsPref = mVoiceCategory.findPreference(KEY_TTS_SETTINGS);
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populateOrRemovePreferences();
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}
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private void populateOrRemovePreferences() {
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boolean hasTtsPrefs = populateOrRemoveTtsPrefs();
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if (!hasTtsPrefs) {
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// There were no TTS settings and no recognizer settings,
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// so it should be safe to hide the preference category
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// entirely.
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mFragment.getPreferenceScreen().removePreference(mVoiceCategory);
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}
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}
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private boolean populateOrRemoveTtsPrefs() {
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if (mTtsEngines.getEngines().isEmpty()) {
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mVoiceCategory.removePreference(mTtsSettingsPref);
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return false;
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}
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return true;
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}
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}
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