diff --git a/res/values/strings.xml b/res/values/strings.xml index 7166a3dc..516a0a8a 100644 --- a/res/values/strings.xml +++ b/res/values/strings.xml @@ -26,6 +26,8 @@ Audio Output + Volume + Music volume External Output Only Only play music through an external output (e.g. headphones, Bluetooth) Pause When Unplugged diff --git a/res/xml/preferences.xml b/res/xml/preferences.xml index 1041232c..817a3a7f 100644 --- a/res/xml/preferences.xml +++ b/res/xml/preferences.xml @@ -3,6 +3,10 @@ xmlns:android="http://schemas.android.com/apk/res/android" android:persistent="true"> + + * + * This file is part of Vanilla Music Player. + * + * Vanilla Music Player is free software; you can redistribute it and/or modify + * it under the terms of the GNU Library General Public License as published by + * the Free Software Foundation, either version 3 of the License, or (at your + * option) any later version. + * + * Vanilla Music Player is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package org.kreed.vanilla; + +import android.app.AlertDialog.Builder; +import android.content.Context; +import android.preference.DialogPreference; +import android.util.AttributeSet; +import android.view.ViewGroup; +import android.widget.LinearLayout; +import android.widget.SeekBar; + +public class VolumePreference extends DialogPreference implements SeekBar.OnSeekBarChangeListener { + public VolumePreference(Context context, AttributeSet attrs) + { + super(context, attrs); + } + + @Override + protected void onPrepareDialogBuilder(Builder builder) + { + // setting is applied instantly; no way to cancel + builder.setNegativeButton(null, null); + + ViewGroup.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); + + LinearLayout layout = new LinearLayout(getContext()); + layout.setLayoutParams(params); + + SeekBar seekBar = new SeekBar(getContext()); + seekBar.setPadding(20, 20, 20, 20); + seekBar.setLayoutParams(params); + seekBar.setMax(1000); + seekBar.setProgress((int)(Math.pow(getPersistedFloat(1.0f) / 3, 0.25f) * 1000)); + seekBar.setOnSeekBarChangeListener(this); + layout.addView(seekBar); + + builder.setView(layout); + } + + public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) + { + // Approximate an exponential curve with x^4. Produces a value from 0.0 - 3.0. + if (fromUser && shouldPersist()) { + float value = seekBar.getProgress() / 1000.0f; + value *= value; + value *= value; + persistFloat(value * 3); + } + } + + public void onStartTrackingTouch(SeekBar seekBar) + { + } + + public void onStopTrackingTouch(SeekBar seekBar) + { + } +} \ No newline at end of file