244 lines
8.3 KiB
Java
244 lines
8.3 KiB
Java
/*
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* Copyright (C) 2007 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 android.preference;
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import android.content.Context;
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import android.content.Intent;
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import android.content.res.TypedArray;
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import android.media.RingtoneManager;
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import android.net.Uri;
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import android.provider.Settings.System;
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import android.text.TextUtils;
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import android.util.AttributeSet;
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import android.util.Log;
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/**
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* A {@link Preference} that allows the user to choose a ringtone from those on the device.
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* The chosen ringtone's URI will be persisted as a string.
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* <p>
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* If the user chooses the "Default" item, the saved string will be one of
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* {@link System#DEFAULT_RINGTONE_URI},
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* {@link System#DEFAULT_NOTIFICATION_URI}, or
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* {@link System#DEFAULT_ALARM_ALERT_URI}. If the user chooses the "Silent"
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* item, the saved string will be an empty string.
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*
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* @attr ref android.R.styleable#RingtonePreference_ringtoneType
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* @attr ref android.R.styleable#RingtonePreference_showDefault
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* @attr ref android.R.styleable#RingtonePreference_showSilent
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*/
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public class RingtonePreference extends Preference implements
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PreferenceManager.OnActivityResultListener {
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private static final String TAG = "RingtonePreference";
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private int mRingtoneType;
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private boolean mShowDefault;
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private boolean mShowSilent;
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private int mRequestCode;
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public RingtonePreference(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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TypedArray a = context.obtainStyledAttributes(attrs,
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com.android.internal.R.styleable.RingtonePreference, defStyle, 0);
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mRingtoneType = a.getInt(com.android.internal.R.styleable.RingtonePreference_ringtoneType,
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RingtoneManager.TYPE_RINGTONE);
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mShowDefault = a.getBoolean(com.android.internal.R.styleable.RingtonePreference_showDefault,
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true);
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mShowSilent = a.getBoolean(com.android.internal.R.styleable.RingtonePreference_showSilent,
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true);
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a.recycle();
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}
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public RingtonePreference(Context context, AttributeSet attrs) {
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this(context, attrs, com.android.internal.R.attr.ringtonePreferenceStyle);
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}
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public RingtonePreference(Context context) {
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this(context, null);
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}
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/**
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* Returns the sound type(s) that are shown in the picker.
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*
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* @return The sound type(s) that are shown in the picker.
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* @see #setRingtoneType(int)
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*/
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public int getRingtoneType() {
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return mRingtoneType;
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}
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/**
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* Sets the sound type(s) that are shown in the picker.
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*
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* @param type The sound type(s) that are shown in the picker.
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* @see RingtoneManager#EXTRA_RINGTONE_TYPE
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*/
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public void setRingtoneType(int type) {
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mRingtoneType = type;
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}
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/**
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* Returns whether to a show an item for the default sound/ringtone.
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*
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* @return Whether to show an item for the default sound/ringtone.
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*/
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public boolean getShowDefault() {
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return mShowDefault;
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}
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/**
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* Sets whether to show an item for the default sound/ringtone. The default
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* to use will be deduced from the sound type(s) being shown.
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*
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* @param showDefault Whether to show the default or not.
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* @see RingtoneManager#EXTRA_RINGTONE_SHOW_DEFAULT
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*/
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public void setShowDefault(boolean showDefault) {
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mShowDefault = showDefault;
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}
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/**
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* Returns whether to a show an item for 'Silent'.
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*
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* @return Whether to show an item for 'Silent'.
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*/
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public boolean getShowSilent() {
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return mShowSilent;
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}
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/**
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* Sets whether to show an item for 'Silent'.
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*
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* @param showSilent Whether to show 'Silent'.
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* @see RingtoneManager#EXTRA_RINGTONE_SHOW_SILENT
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*/
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public void setShowSilent(boolean showSilent) {
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mShowSilent = showSilent;
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}
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@Override
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protected void onClick() {
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// Launch the ringtone picker
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Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
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onPrepareRingtonePickerIntent(intent);
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getPreferenceManager().getActivity().startActivityForResult(intent, mRequestCode);
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}
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/**
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* Prepares the intent to launch the ringtone picker. This can be modified
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* to adjust the parameters of the ringtone picker.
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*
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* @param ringtonePickerIntent The ringtone picker intent that can be
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* modified by putting extras.
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*/
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protected void onPrepareRingtonePickerIntent(Intent ringtonePickerIntent) {
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ringtonePickerIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI,
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onRestoreRingtone());
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ringtonePickerIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, mShowDefault);
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if (mShowDefault) {
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ringtonePickerIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_DEFAULT_URI,
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RingtoneManager.getDefaultUri(getRingtoneType()));
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}
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ringtonePickerIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, mShowSilent);
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ringtonePickerIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, mRingtoneType);
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}
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/**
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* Called when a ringtone is chosen.
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* <p>
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* By default, this saves the ringtone URI to the persistent storage as a
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* string.
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*
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* @param ringtoneUri The chosen ringtone's {@link Uri}. Can be null.
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*/
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protected void onSaveRingtone(Uri ringtoneUri) {
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persistString(ringtoneUri != null ? ringtoneUri.toString() : "");
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}
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/**
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* Called when the chooser is about to be shown and the current ringtone
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* should be marked. Can return null to not mark any ringtone.
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* <p>
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* By default, this restores the previous ringtone URI from the persistent
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* storage.
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*
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* @return The ringtone to be marked as the current ringtone.
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*/
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protected Uri onRestoreRingtone() {
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final String uriString = getPersistedString(null);
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return !TextUtils.isEmpty(uriString) ? Uri.parse(uriString) : null;
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}
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@Override
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protected Object onGetDefaultValue(TypedArray a, int index) {
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return a.getString(index);
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}
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@Override
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protected void onSetInitialValue(boolean restorePersistedValue, Object defaultValueObj) {
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String defaultValue = (String) defaultValueObj;
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/*
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* This method is normally to make sure the internal state and UI
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* matches either the persisted value or the default value. Since we
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* don't show the current value in the UI (until the dialog is opened)
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* and we don't keep local state, if we are restoring the persisted
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* value we don't need to do anything.
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*/
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if (restorePersistedValue) {
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return;
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}
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// If we are setting to the default value, we should persist it.
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if (!TextUtils.isEmpty(defaultValue)) {
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onSaveRingtone(Uri.parse(defaultValue));
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}
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}
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@Override
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protected void onAttachedToHierarchy(PreferenceManager preferenceManager) {
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super.onAttachedToHierarchy(preferenceManager);
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preferenceManager.registerOnActivityResultListener(this);
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mRequestCode = preferenceManager.getNextRequestCode();
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}
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public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
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if (requestCode == mRequestCode) {
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if (data != null) {
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Uri uri = data.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);
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if (callChangeListener(uri != null ? uri.toString() : "")) {
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onSaveRingtone(uri);
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}
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}
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return true;
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}
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return false;
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}
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}
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