1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.deskclock.widget.toast 18 19 import com.google.android.material.snackbar.Snackbar 20 21 import java.lang.ref.WeakReference 22 23 /** 24 * Manages visibility of Snackbar and allow preemptive dismiss of current displayed Snackbar. 25 */ 26 object SnackbarManager { 27 private var sSnackbar: WeakReference<Snackbar>? = null 28 29 @JvmStatic shownull30 fun show(snackbar: Snackbar) { 31 sSnackbar = WeakReference<Snackbar>(snackbar) 32 snackbar.show() 33 } 34 35 @JvmStatic dismissnull36 fun dismiss() { 37 val snackbar: Snackbar? = sSnackbar?.get() 38 if (snackbar != null) { 39 snackbar.dismiss() 40 sSnackbar = null 41 } 42 } 43 }