Reorganize notification Settings classes

The notification package was getting too big.

Test: make -j64 RunSettingsRoboTests
Fixes: 145224451
Change-Id: I25ba82f42f7a137d8adcce72dcf8089d0e018bdc

src/com/android/settings/notification/app/NotificationSoundPreference.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 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.app;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.media.Ringtone;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.util.AttributeSet;
+
+import com.android.settings.R;
+import com.android.settings.RingtonePreference;
+
+public class NotificationSoundPreference extends RingtonePreference {
+    private Uri mRingtone;
+
+    public NotificationSoundPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected Uri onRestoreRingtone() {
+        return mRingtone;
+    }
+
+    public void setRingtone(Uri ringtone) {
+        mRingtone = ringtone;
+        setSummary("\u00A0");
+        updateRingtoneName(mRingtone);
+    }
+
+    @Override
+    public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (data != null) {
+            Uri uri = data.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);
+            setRingtone(uri);
+            callChangeListener(uri);
+        }
+
+        return true;
+    }
+
+    private void updateRingtoneName(final Uri uri) {
+        AsyncTask ringtoneNameTask = new AsyncTask<Object, Void, CharSequence>() {
+            @Override
+            protected CharSequence doInBackground(Object... params) {
+                if (uri == null) {
+                    return getContext().getString(com.android.internal.R.string.ringtone_silent);
+                } else if (RingtoneManager.isDefault(uri)) {
+                    return getContext().getString(R.string.notification_sound_default);
+                } else if(ContentResolver.SCHEME_ANDROID_RESOURCE.equals(uri.getScheme())) {
+                    return getContext().getString(R.string.notification_unknown_sound_title);
+                } else {
+                    return Ringtone.getTitle(getContext(), uri, false /* followSettingsUri */,
+                            true /* allowRemote */);
+                }
+            }
+
+            @Override
+            protected void onPostExecute(CharSequence name) {
+                setSummary(name);
+            }
+        };
+        ringtoneNameTask.execute();
+    }
+}