qt5 mp3音乐播放器源码（含金量高）

#include "mymaindlg.h" #include "ui_mymaindlg.h" #include<QDialog> #include "skinbox.h" #include <QFileDialog> #include <QTimer> #include <QDateTime> #include <QtMultimedia/QMediaPlayer> #include <QtMultimedia/QMediaPlaylist> #include <QSystemTrayIcon> #include <QMenu> #include <QMessageBox> #include <QToolTip> #include <QTime> #include <QScrollBar> #include <QEvent> #include <QMouseEvent> #include <QListWidgetItem> #include <QDebug> #include <QHBoxLayout> #include <QVBoxLayout> #include <QGraphicsOpacityEffect> #include <QTableWidgetItem> #include <QDropEvent> #include <QDesktopWidget> #include <QCursor> MyMainDlg::MyMainDlg(QWidget *parent) :QDialog(parent),ui(new Ui::MyMainDlg) { ui->setupUi(this); QDir dir("D://ExcellentLrc");//创建保存歌词的文件夹 if(!dir.exists()) dir.mkdir("D://ExcellentLrc"); QDir dir2("D://ExcellentMusic"); if(!dir2.exists()) dir2.mkdir("D://ExcellentMusic"); QDir dir3("D://ExcellentAlbum"); if(!dir3.exists()) dir3.mkdir("D://ExcellentAlbum"); nowplaywid=new MusicMarqueeWidget(this); nowplaywid->setGeometry(5,25,175,20); stack=new QStackedWidget(this); mymaintable=new mymaintablewidget(stack);//添加widget mynetmaintable=new mymaintablewidget(stack);//添加网络列表 addtips=new QLabel("点击按钮添加\n或拖动文件到界面", mymaintable); addtips->setGeometry(5,150,180,50); addtips->setStyleSheet("color: white;font-size: 14px;font-family :微软雅黑"); box=new skinbox(this); mynetwork=new MyNetWork;//网络 downdlg=new downloadinfodlg(this); lrcdlg=new searchlrcdlg(this); lrcdlg->setModal(true);//模太对话框 lrc=new MyLrc; lrcshowedit=new QTextEdit(this); lrcshowedit->setStyleSheet("QTextEdit{background:transparent}"); lrcshowedit->setFrameStyle(QFrame::NoFrame); lrcshowedit->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); lrcshowedit->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); lrcshowedit->setReadOnly(true); lrcshowedit->setFont(QFont("微软雅黑", 10, QFont::Thin)); lrcshowedit->setTextColor(Qt::white); lrcshowedit->setContextMenuPolicy(Qt::CustomContextMenu); lrcshowedit->setFocusPolicy(Qt::NoFocus); lrcshowedit->viewport()->installEventFilter(this);//事件 lrcshowedit->viewport()->setCursor(QCursor(QPixmap(":/image/cursor_hand.png")));//原始形状的cursor /////////////////////////////////////////netsearch的形成 searchsongui();//查找歌曲页面的ui searchdownui();//下载歌曲页面的ui ///////////////////////////////////////////////////////////// loadlab=new QLabel(searchtable);//以搜索显示的tablewidget为父窗口 movie=new QMovie("image/loading.gif"); loadlab->setMovie(movie); movie->start(); loadlab->raise(); loadlab->setGeometry(65,150,64,64); loadlab->hide(); stack->addWidget( lrcshowedit);//textedit stack->addWidget( mymaintable);//tablewidet主界面的 stack->addWidget(mynetmaintable);//tablewidet stack->addWidget(netseauiwidget);//widget stack->addWidget(tabwidget);//tabwidget stack->setGeometry(55,132,194,444); ui->widget_search->raise();//位于最上层 ui->widget_search->hide(); ui->lineEdit_search->setTextMargins(13,0,0,0);//为图标留下地方 ///////////////////////////////////////////////////////////////////////////////滚动条样式 this->setAcceptDrops(true);//darg和drop事件 this->setWindowFlags(Qt::FramelessWindowHint);//去掉标题栏 this->setWindowTitle("极视听音乐播放器"); ////////////////////////////两个定时器 timer = new QTimer(); timer->start(1000); timer2 = new QTimer(); timer2->start(200); /////////////////////////////////////////////////控件样式 setDialogStyleSheet();//样式 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ui->listWidget_side->viewport()->installEventFilter(this); ui->horizontalSlider_vol->installEventFilter(this);//用于点击slider即到 ui->horizontalSlider->installEventFilter(this);//用于点击slider即到 ui->listWidget_side->setMouseTracking(true); nowplaywid->installEventFilter(this); ui->label_title->installEventFilter(this); ui->label_pic->installEventFilter(this); mymaintable->setContextMenuPolicy(Qt::CustomContextMenu); mynetmaintable->setContextMenuPolicy(Qt::CustomContextMenu); ui->horizontalSlider_vol->setRange(0,100); ui->pushButton_playpause->setToolTip("播放"); /////////////////////////////////////////开关 changevol=true;//vol的按钮改变 checkbox=0; previousitem=-1; m_MousePressed=false; lrcmove=false; nowplaylist=1;//正在播放列表 ///////////////////////////////////// netplayList=new QMediaPlaylist; player=new QMediaPlayer; /////////////////////////////////////////////////// trayiconmenu();//设置系统图标菜单 setbtnmenu();//播放模式菜单与添加菜单 connect(mymaintable,SIGNAL(itemDoubleClicked(QTableWidgetItem*)),this,SLOT(mytabledoubleclick(QTableWidgetItem *))); connect(mynetmaintable,SIGNAL(itemDoubleClicked(QTableWidgetItem*)),this,SLOT(mynetmaintabledoublclick(QTableWidgetItem*))); connect(lrcdlg,SIGNAL(getlrcshow(QByteArray)),this,SLOT(replyLrc(QByteArray)));//lrc对话框获取 connect(box,SIGNAL(listbktransparent(int)),this,SLOT(setplaylistopa(int)));//设置播放列表的背景透明度 connect(box,SIGNAL(skinChange(QString)),downdlg,SLOT(setbk(QString)));//为下载dlg设置背景图片 connect(box,SIGNAL(skinChange(QString)),this,SLOT(setBk(QString)));//为歌词dlg设置背景图片 connect(box,SIGNAL(skinChange(QString)),lrcdlg,SLOT(setBk(QString)));//为歌词dlg设置背景图片 connect(downdlg,SIGNAL(downbtninfo(int,QString)),this,SLOT(downloadsonginfo(int,QString)));//获取下载对话框的信息 connect(searchtable,SIGNAL(itemClicked(QTableWidgetItem*)),this,SLOT(searchtableitemclick(QTableWidgetItem*))); connect(searchtable,SIGNAL(entered(QModelIndex)),this,SLOT(seatabent(QModelIndex))); connect(mynetwork,SIGNAL(dolrcworkfinished(QByteArray)),this,SLOT(replyLrc(QByteArray)));//mynetwork连接信号与槽返回的lrc显示 connect(mynetwork,SIGNAL(doworkfinished(QByteArray)),this,SLOT(slotmynetwork(QByteArray)));//由mynetwork发的信号槽 connect(ui->pushButton_location,SIGNAL(clicked()),this,SLOT(scrolltoitem()));//定位 connect(lrc,SIGNAL(changeselect(bool)),ui->checkBox,SLOT(setChecked(bool)));//用于显示歌词checkbox的选中 connect(mynetmaintable, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(ShownetContextMenu(const QPoint&)));//网络列表的 connect(mymaintable, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(ShowContextMenu(const QPoint&))); connect(lrcshowedit,SIGNAL(customContextMenuRequested(const QPoint&)),this,SLOT(showlrcshoweditmenu(const QPoint&))); connect(ui->listWidget_side,SIGNAL(currentRowChanged(int)),stack,SLOT(setCurrentIndex(int))); connect(timer2,SIGNAL(timeout()),this,SLOT(timerEvent2())); connect(timer,SIGNAL(timeout()),this,SLOT(timerEvent())); connect(player,SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)),this,SLOT(chagnplaybtnsty2(QMediaPlayer::MediaStatus))); connect(player,SIGNAL(stateChanged(QMediaPlayer::State)),this,SLOT(changplaybtbsty(QMediaPlayer::State)));//改变播放按钮的样式 connect(player,SIGNAL(currentMediaChanged(QMediaContent)),this,SLOT(shownowplaylabel(QMediaContent)));//显示正在播放的歌曲label connect(player,SIGNAL(currentMediaChanged(QMediaContent)),this,SLOT(seteditlrc(QMediaContent)));//