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