playermusic.java

一个J2ME的游戏,有源程序.是原创!适合S60的176*208的规格.

package src;

import java.io.IOException;
import java.io.InputStream;

import javax.microedition.media.Manager;
import javax.microedition.media.MediaException;
import javax.microedition.media.Player;
import javax.microedition.media.control.VolumeControl;

public class PlayerMusic {

	private Player player;

	public boolean isPlayMusic;// 音乐播放判断

	/**
	 * 加载音乐资源
	 * 
	 * @param fileName
	 *            文件名
	 * @param format
	 *            音乐格式、如 audio/midi
	 * @return
	 */
	public boolean loadMusicFrome(String fileName, String format) {
		try {
			InputStream is = getClass().getResourceAsStream(fileName);
			player = Manager.createPlayer(is, format);// audio/midi
		} catch (IOException ex) {
			return false;
		} catch (MediaException ex) {
			return false;
		}
		return true;
	}

	/**
	 * 播放音乐
	 * 
	 */
	public void PlayMusic() {
		if (isPlayMusic) {
			try {
				player.setLoopCount(-1);
				player.realize();
				player.prefetch();
				player.start();
			} catch (MediaException e) {
				e.printStackTrace();
			}
		}
	}

	/**
	 * 设置音量
	 * 
	 * @param level
	 *            音量范围在0到100
	 */
	public void setMusicVolume(int level) {
		if (isPlayMusic && player != null) {
			VolumeControl control = (VolumeControl) player
					.getControl("VolumeControl");
			control.setLevel(level);
		}
	}

	/**
	 * 暂停音乐
	 * 
	 */
	public void stopMusic() {
		if (isPlayMusic && player != null) {
			try {
				player.stop();
			} catch (MediaException ex) {

			}
		}
	}

	/**
	 * 关闭音乐
	 * 
	 */
	public void closeMusic() {
		if (isPlayMusic && player != null) {
			player.close();// 关闭播放器
			player = null;
			isPlayMusic = false;
		}
	}

	/**
	 * 重新加载音乐，关闭当前音乐并开始播放新音乐。
	 * 
	 * @param fileName
	 *            文件名
	 */
	public void replayMusic(String fileName)// 重新播放一次，先释放资源再加载进入
	{
		closeMusic();
		System.gc();// 释放
		isPlayMusic = loadMusicFrome(fileName, "audio/midi");// 加载
		PlayMusic();
		setMusicVolume(50);
	}
}