| /* |
| * Copyright (C) 2015 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.deskclock.widget.toast; |
| |
| import android.support.design.widget.Snackbar; |
| |
| import java.lang.ref.WeakReference; |
| |
| /** |
| * Manages visibility of Snackbar and allow preemptively dismiss current Snackbar on screen. |
| */ |
| public final class SnackbarManager { |
| |
| private static WeakReference<Snackbar> sSnackbar = null; |
| |
| private SnackbarManager() {} |
| |
| public static void show(Snackbar snackbar) { |
| sSnackbar = new WeakReference<>(snackbar); |
| snackbar.show(); |
| } |
| |
| public static void dismiss() { |
| if (sSnackbar != null && sSnackbar.get() != null) { |
| sSnackbar.get().dismiss(); |
| sSnackbar = null; |
| } |
| } |
| } |