Java tutorial
//package com.java2s; /** * Copyright (c) 2013-2014, ?? ??(http://1.playandroid.duapp.com/) * * 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. */ import android.content.Context; import android.widget.Toast; public class Main { static Toast toast; public static void toast(Context context, String msg, int duration) { if (toast == null) { toast = Toast.makeText(context, msg, duration); } else { toast.setText(msg); } toast.show(); } public static void toast(Context context, String msg) { toast(context, msg, Toast.LENGTH_SHORT); } public static void toast(Context context, int strResId, int duration) { toast(context, context.getString(strResId), duration); } public static void toast(Context context, int strResId) { toast(context, context.getString(strResId)); } }