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/*
* Copyright (C) 2010 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.settings;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import java.util.List;
/**
* Settings screen for voice input/output.
*/
public class VoiceInputOutputSettings extends PreferenceActivity {
private static final String KEY_PARENT = "parent";
private static final String KEY_VOICE_SEARCH_SETTINGS = "voice_search_settings";
private static final String KEY_KEYBOARD_SETTINGS = "keyboard_settings";
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.voice_input_output_settings);
removePreferenceIfNecessary(KEY_VOICE_SEARCH_SETTINGS);
removePreferenceIfNecessary(KEY_KEYBOARD_SETTINGS);
}
/**
* Removes a preference if there is no activity to handle its intent.
*/
private void removePreferenceIfNecessary(String preferenceKey) {
PreferenceGroup parent = (PreferenceGroup) findPreference(KEY_PARENT);
Preference preference = parent.findPreference(preferenceKey);
if (preference == null) {
return;
}
Intent intent = preference.getIntent();
if (intent != null) {
PackageManager pm = getPackageManager();
if (!pm.queryIntentActivities(intent, 0).isEmpty()) {
return;
}
}
// Did not find a matching activity, so remove the preference.
parent.removePreference(preference);
}
}
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