Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (C) 2011 Whisper Systems
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import android.os.Handler;
import android.os.Looper;

import android.support.annotation.NonNull;

import java.util.concurrent.CountDownLatch;

public class Main {
    public static Handler handler = new Handler(Looper.getMainLooper());

    public static void runOnMainSync(final @NonNull Runnable runnable) {
        if (isMainThread()) {
            runnable.run();
        } else {
            final CountDownLatch sync = new CountDownLatch(1);
            runOnMain(new Runnable() {
                @Override
                public void run() {
                    try {
                        runnable.run();
                    } finally {
                        sync.countDown();
                    }
                }
            });
            try {
                sync.await();
            } catch (InterruptedException ie) {
                throw new AssertionError(ie);
            }
        }
    }

    public static boolean isMainThread() {
        return Looper.myLooper() == Looper.getMainLooper();
    }

    public static void runOnMain(final @NonNull Runnable runnable) {
        if (isMainThread())
            runnable.run();
        else
            handler.post(runnable);
    }
}