85315533a1
Bind to existing volumizer instance when possible. Bug:15091992 Change-Id: I26248967ff85fdb7a850451336d6850e508d4f18
100 lines
3.2 KiB
Java
100 lines
3.2 KiB
Java
/*
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* Copyright (C) 2014 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.content.ContentResolver;
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import android.content.Context;
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import android.media.AudioManager;
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import android.net.Uri;
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import android.preference.PreferenceManager;
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import android.preference.SeekBarPreference;
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import android.preference.SeekBarVolumizer;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.View;
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import android.widget.SeekBar;
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import com.android.settings.R;
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/** A slider preference that directly controls an audio stream volume (no dialog) **/
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public class VolumeSeekBarPreference extends SeekBarPreference
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implements PreferenceManager.OnActivityStopListener {
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private static final String TAG = "VolumeSeekBarPreference";
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private final Context mContext;
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private int mStream;
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private SeekBar mSeekBar;
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private SeekBarVolumizer mVolumizer;
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private Callback mCallback;
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public VolumeSeekBarPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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mContext = context;
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}
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public void setStream(int stream) {
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mStream = stream;
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}
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public void setCallback(Callback callback) {
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mCallback = callback;
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}
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@Override
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public void onActivityStop() {
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if (mVolumizer != null) {
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mVolumizer.stop();
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}
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}
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@Override
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protected void onBindView(View view) {
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super.onBindView(view);
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if (mStream == 0) {
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Log.w(TAG, "No stream found, not binding volumizer");
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return;
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}
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getPreferenceManager().registerOnActivityStopListener(this);
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final SeekBar seekBar = (SeekBar) view.findViewById(com.android.internal.R.id.seekbar);
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if (seekBar == mSeekBar) return;
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mSeekBar = seekBar;
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final SeekBarVolumizer.Callback sbvc = new SeekBarVolumizer.Callback() {
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@Override
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public void onSampleStarting(SeekBarVolumizer sbv) {
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if (mCallback != null) {
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mCallback.onSampleStarting(sbv);
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}
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}
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};
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final Uri sampleUri = mStream == AudioManager.STREAM_MUSIC ? getMediaVolumeUri() : null;
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if (mVolumizer == null) {
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mVolumizer = new SeekBarVolumizer(mContext, mStream, sampleUri, sbvc);
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}
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mVolumizer.setSeekBar(mSeekBar);
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}
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private Uri getMediaVolumeUri() {
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return Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://"
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+ mContext.getPackageName()
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+ "/" + R.raw.media_volume);
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}
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public interface Callback {
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void onSampleStarting(SeekBarVolumizer sbv);
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}
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}
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