ToastUtils.java revision d41f0075a7d2ea826204e81fcec57d0aa57171a9 
1/*
2 * Copyright (C) 2016 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
17package com.android.tv.util;
18
19import android.content.Context;
20import android.support.annotation.MainThread;
21import android.widget.Toast;
22
23import java.lang.ref.WeakReference;
24
25/**
26 * A utility class for the toast message.
27 */
28public class ToastUtils {
29    private static WeakReference<Toast> sToast;
30
31    /**
32     * Shows the toast message after canceling the previous one.
33     */
34    @MainThread
35    public static void show(Context context, CharSequence text, int duration) {
36        if (sToast != null && sToast.get() != null) {
37            sToast.get().cancel();
38        }
39        Toast toast = Toast.makeText(context, text, duration);
40        toast.show();
41        sToast = new WeakReference<>(toast);
42    }
43}
44