560637970f
Test: make -j RunSettingsRoboTests Change-Id: I8495770792dfdada54174ca61937f336e4fc219c Fixes: 67997207
106 lines
3.2 KiB
Java
106 lines
3.2 KiB
Java
/*
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* Copyright (C) 2016 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.notification;
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import android.arch.lifecycle.LifecycleObserver;
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import android.arch.lifecycle.OnLifecycleEvent;
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import android.content.Context;
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import android.support.v7.preference.PreferenceScreen;
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import com.android.internal.annotations.VisibleForTesting;
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import com.android.settings.notification.VolumeSeekBarPreference.Callback;
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import com.android.settingslib.core.lifecycle.Lifecycle;
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/**
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* Base class for preference controller that handles VolumeSeekBarPreference
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*/
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public abstract class VolumeSeekBarPreferenceController extends
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AdjustVolumeRestrictedPreferenceController implements LifecycleObserver {
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protected VolumeSeekBarPreference mPreference;
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protected VolumeSeekBarPreference.Callback mVolumePreferenceCallback;
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protected AudioHelper mHelper;
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public VolumeSeekBarPreferenceController(Context context, String key) {
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super(context, key);
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setAudioHelper(new AudioHelper(context));
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}
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@VisibleForTesting
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void setAudioHelper(AudioHelper helper) {
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mHelper = helper;
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}
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public void setCallback(Callback callback) {
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mVolumePreferenceCallback = callback;
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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if (isAvailable()) {
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mPreference = (VolumeSeekBarPreference) screen.findPreference(getPreferenceKey());
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mPreference.setCallback(mVolumePreferenceCallback);
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mPreference.setStream(getAudioStream());
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mPreference.setMuteIcon(getMuteIcon());
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}
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}
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@OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
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public void onResume() {
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if (mPreference != null) {
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mPreference.onActivityResume();
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}
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}
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@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
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public void onPause() {
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if (mPreference != null) {
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mPreference.onActivityPause();
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}
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}
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@Override
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public int getSliderPosition() {
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if (mPreference != null) {
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return mPreference.getProgress();
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}
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return mHelper.getStreamVolume(getAudioStream());
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}
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@Override
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public boolean setSliderPosition(int position) {
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if (mPreference != null) {
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mPreference.setProgress(position);
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}
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return mHelper.setStreamVolume(getAudioStream(), position);
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}
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@Override
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public int getMaxSteps() {
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if (mPreference != null) {
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return mPreference.getMax();
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}
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return mHelper.getMaxVolume(getAudioStream());
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}
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protected abstract int getAudioStream();
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protected abstract int getMuteIcon();
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}
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