Python音乐播放器

时间:2022-06-03 Livingbody 人气:0

一、环境设置

第一步引入必须的各类包

import os
import tkinter
import tkinter.filedialog
import random
import time
import threading
import pygame

特别是pygame需要手动安装

pip install pygame

二、播放功能

首先选择音乐目录，然后创建播放现成，播放音乐。

# 播放按钮
def buttonPlayClick():
    # 选择要播放的音乐文件夹
    global folder
    if not folder:
        folder = tkinter.filedialog.askdirectory()
    if not folder:
        return

    global playing
    playing = True
    # 创建一个线程来播放音乐，当前主线程用来接收用户操作
    t = threading.Thread(target=play)
    t.start()

    # 根据情况禁用和启用相应的按钮
    buttonPlay['state'] = 'disabled'
    buttonStop['state'] = 'normal'
    buttonPause['state'] = 'normal'
    buttonNext['state'] = 'normal'

    pause_resume.set('Pause')


buttonPlay = tkinter.Button(root,
                            text='Play',
                            command=buttonPlayClick)
buttonPlay.place(x=20, y=10, width=50, height=20)

三、停止功能

很直接，直接停止播放，当然更改按钮状态也属常规操作。

def buttonStopClick():
    global playing
    playing = False

    pygame.mixer.music.stop()
    musicName.set('暂时没有播放音乐')

    buttonPlay['state'] = 'normal'
    buttonStop['state'] = 'disabled'
    buttonPause['state'] = 'disabled'
    buttonNext['state'] = 'disabled'
    global folder
    folder = ''


buttonStop = tkinter.Button(root,
                            text='Stop',
                            command=buttonStopClick)
buttonStop.place(x=80, y=10, width=50, height=20)
buttonStop['state'] = 'disabled'

四、暂停与恢复

这个好理解，也是直接现成操作，加个判断，状态更改。

# 暂停与恢复，两个功能共用一个按钮
def buttonPauseClick():
    # global playing
    if pause_resume.get() == 'Pause':
        pygame.mixer.music.pause()
        pause_resume.set('Resume')
    elif pause_resume.get() == 'Resume':
        pygame.mixer.music.unpause()
        pause_resume.set('Pause')

五、关闭

先结束现成，然后关闭窗体。

# 关闭程序时执行的代码
def closeWindow():
    # 修改变量，结束线程中的循环
    global playing
    playing = False
    time.sleep(0.3)

    try:
        # 停止播放，如果已停止，
        # 再次停止时会抛出异常，所以放在异常处理结构中
        pygame.mixer.music.stop()
        pygame.mixer.quit()
    except:
        pass
    root.destroy()

六、完整代码

#!/usr/bin/python
# -*- coding: UTF-8 -*-
"""
@author:livingbody
@file:music_play.py
@time:2022/04/19
"""

import os
import tkinter
import tkinter.filedialog
import random
import time
import threading
import pygame

folder = ''


def play():
    # folder用来表示存放MP3音乐文件的文件夹
    global folder

    musics = [folder + '\' + music
              for music in os.listdir(folder) \
              if music.endswith(('.mp3', '.wav', '.ogg'))]

    # 初始化混音器设备
    pygame.mixer.init()
    while playing:
        if not pygame.mixer.music.get_busy():
            # 随机播放一首歌曲
            nextMusic = random.choice(musics)
            musicName.set('playing....' + nextMusic)
            pygame.mixer.music.load(nextMusic.encode())
            # 播放一次
            pygame.mixer.music.play(1)
        else:
            time.sleep(0.3)


root = tkinter.Tk()
root.title('音乐播放器v1.0')
root.geometry('280x70+400+300')
root.resizable(False, False)


# 关闭程序时执行的代码
def closeWindow():
    # 修改变量，结束线程中的循环
    global playing
    playing = False
    time.sleep(0.3)

    try:
        # 停止播放，如果已停止，
        # 再次停止时会抛出异常，所以放在异常处理结构中
        pygame.mixer.music.stop()
        pygame.mixer.quit()
    except:
        pass
    root.destroy()


root.protocol('WM_DELETE_WINDOW', closeWindow)

pause_resume = tkinter.StringVar(root, value='NotSet')
playing = False


# 播放按钮
def buttonPlayClick():
    # 选择要播放的音乐文件夹
    global folder
    if not folder:
        folder = tkinter.filedialog.askdirectory()
    if not folder:
        return

    global playing
    playing = True
    # 创建一个线程来播放音乐，当前主线程用来接收用户操作
    t = threading.Thread(target=play)
    t.start()

    # 根据情况禁用和启用相应的按钮
    buttonPlay['state'] = 'disabled'
    buttonStop['state'] = 'normal'
    buttonPause['state'] = 'normal'
    buttonNext['state'] = 'normal'

    pause_resume.set('Pause')


buttonPlay = tkinter.Button(root,
                            text='Play',
                            command=buttonPlayClick)
buttonPlay.place(x=20, y=10, width=50, height=20)


# 停止按钮
def buttonStopClick():
    global playing
    playing = False

    pygame.mixer.music.stop()
    musicName.set('暂时没有播放音乐')

    buttonPlay['state'] = 'normal'
    buttonStop['state'] = 'disabled'
    buttonPause['state'] = 'disabled'
    buttonNext['state'] = 'disabled'
    global folder
    folder = ''


buttonStop = tkinter.Button(root,
                            text='Stop',
                            command=buttonStopClick)
buttonStop.place(x=80, y=10, width=50, height=20)
buttonStop['state'] = 'disabled'


# 暂停与恢复，两个功能共用一个按钮
def buttonPauseClick():
    # global playing
    if pause_resume.get() == 'Pause':
        pygame.mixer.music.pause()
        pause_resume.set('Resume')
    elif pause_resume.get() == 'Resume':
        pygame.mixer.music.unpause()
        pause_resume.set('Pause')


buttonPause = tkinter.Button(root,
                             textvariable=pause_resume,
                             command=buttonPauseClick)
buttonPause.place(x=140, y=10, width=50, height=20)
buttonPause['state'] = 'disabled'


# 下一首音乐
def buttonNextClick():
    global playing
    playing = False
    pygame.mixer.music.stop()
    pygame.mixer.quit()
    buttonPlayClick()


buttonNext = tkinter.Button(root,
                            text='Next',
                            command=buttonNextClick)
buttonNext.place(x=200, y=10, width=50, height=20)
buttonNext['state'] = 'disabled'

musicName = tkinter.StringVar(root,
                              value='暂时没有播放音乐...')
labelName = tkinter.Label(root,
                          textvariable=musicName)
labelName.place(x=0, y=40, width=270, height=20)



if __name__ == '__main__':
    # 启动消息循环
    root.mainloop()

七、改进

下一步，可加入播放列表，点选播放音乐，也可以拖动进度播放。

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