API-Nutzungsanleitung für Medien (Player) in HTML5_HTML5-Tutorial-Fähigkeiten

Ich stelle Ihnen nur den Beispielcode zur Verfügung, damit ich nicht zu viel Unsinn mache.

Code kopieren

Der Code lautet wie folgt:

HTML5 Audio API

HTML5 Audio API-Demo von http://github.com/LearnShare" target="_blank">LearnShare.

Letzte Aktualisierung @2013-04-23 20:40:00
Infotabelle hinzufügen
Update @2013-04-22 14:54:00
DOM-Ereignisse hinzufügen
Update @2013-04-22 12:47:00
getCurrentSrc-Schaltfläche hinzufügen

Code anzeigen auf http ://github.com/LearnShare/LearnShare.github.io/tree/master/labs/audio/" target="_blank">LearnShare.github.io.
API-Referenz: https://developer.mozilla.org/ zh-CN/docs/DOM/HTMLMediaElement" target="_blank">HTMLMediaElement und http://www.w3schools.com/tags/ref_av_dom.asp " target="_blank">Audio/Video DOM References

< ;h2>Audio Element

Öffnen Sie das Entwicklertool um Konsolenprotokolle anzuzeigen.

Controls

Abspielen
pause
getPaused
getEnded


volume-
volume < ;/button>
getVolume


getSrc
< ;button id="play_music1">playMusic1
playMusic2
removeMusic
getCurrentSrc


getInitialTime
getDuration
getSeeking
jumpTo_30s
< ;button id="get_current_time">getCurrentTime
getPlayed



autoplay_off
getAutoplay


controls_show
controls_hide
getControls


loop_on
loop_off
getLoop


preload_metadata
getPreload< ;/button>


getDefaultMuted
mute
stummschaltung aufheben
getMuted


getDefaultPlaybackRate
playbackRate-
playbackRate
< ;button id="get_playback_rate">getPlaybackRate


getNetworkState

getBuffered
getSeekable

Player Attrs

< ;td>controls:

autoplay:
defaultMuted:
defaultPlaybackRate:< ;/td>
loop:
preload:

Spielerinfo

< ;tr>

src:
currentSrc:	< /td>
duration:
currentTime:
endet:
paused:
muted:
volume:
playbackRate:

Play status

< td id="seekable">

networkState:< ;/td>
readyState:
buffered:
seekable:
played:
error:

audio-controls.js

复制代码

代码如下:

window.onload=function(){
// autio element abrufen
var audio=document.getElementById("audio");
// play()
document. getElementById("play").onclick=function(){
audio.play();
console.log("play");
};
// pause()
document.getElementById("pause").onclick=function(){
audio.pause();
console.log("pause");
};
// pausiert werden
document.getElementById("get_paused").onclick=function(){
console.log("audio.paused: " audio.paused);
};
// beendet
Dokument .getElementById("get_ended").onclick=function(){
console.log("audio.ended: " audio.ended);
};
// Lautstärke festlegen-
Dokument. getElementById("volume_down").onclick=function(){
audio.volume-=0.2;
console.log("volume-0.2");
};
// Lautstärke einstellen
document.getElementById("volume_up").onclick=function(){
audio.volume =0.2;
console.log("volume 0.2");
};
// get volume
document.getElementById("get_volume").onclick=function(){
console.log("audio.volume: " audio.volume);
};
// get src
document.getElementById("get_src").onclick=function(){
console.log("audio.src: " audio.src);
};
// set src_music1
document.getElementById("play_music1").onclick=function(){
audio.src="./media/music1.mp3";
updateSrc();
updateCurrentSrc();
Konsole .log("play music1");
};
// set src_music2
document.getElementById("play_music2").onclick=function(){
audio.src="./media /music2.mp3";
updateSrc();
updateCurrentSrc();
console.log("play music2");
};
// set Remove_music
Dokument. getElementById("remove_music").onclick=function(){
audio.src="";
console.log("remove music");
};
// get currentSrc
document.getElementById("get_current_src").onclick=function(){
console.log("audio.currentSrc: " audio.currentSrc);
};
// get initialTime
document .getElementById("get_initial_time").onclick=function(){
console.log("audio.initialTime: " audio.initialTime);
};
// Dauer abrufen
document.getElementById ("get_duration").onclick=function(){
console.log("audio.duration: " audio.duration);
};
// Suche abrufen
document.getElementById(" get_seeking").onclick=function(){
console.log("audio.seeking: " audio.seeking);
};
// set currentTime
document.getElementById("jump_to" ).onclick=function(){
audio.currentTime=30;
console.log("jumpTo 30s");
};
// aktuelle Zeit abrufen
document.getElementById(" get_current_time").onclick=function(){
console.log("audio.currentTime: " audio.currentTime);
};
// abgespielt werden
document.getElementById("get_played" ).onclick=function(){
console.log("audio.played:");
var ranges=audio.played;
var n=ranges.length;
for(var i =0;i console.log("(" ranges.start(i) "," ranges.end(i) ")");
}
};
// Autoplay ein
document.getElementById("autoplay_on").onclick=function(){
audio.autoplay=true;
updateAutoplay();
console.log("autoplay on ");
};
// Autoplay aus
document.getElementById("autoplay_off").onclick=function(){
audio.autoplay=false;
updateAutoplay();
console.log("autoplay off");
};
// Autoplay abrufen
document.getElementById("get_autoplay").onclick=function(){
console.log(" audio.autoplay: " audio.autoplay);
};
// Kontrollen zeigen
document.getElementById("controls_show").onclick=function(){
audio.controls=true;
updateControls();
console.log("controls show");
};
// Steuerelemente ausblenden
document.getElementById("controls_hide").onclick=function(){
audio.controls=false;
updateControls();
console.log("controls hide");
};
// Steuerelemente abrufen
document.getElementById("get_controls" ).onclick=function(){
console.log("audio.controls: " audio.controls);
};
// Schleife weiter
document.getElementById("loop_on"). onclick=function(){
audio.loop=true;
updateLoop();
console.log("loop on");
};
// Schleife aus
document.getElementById("loop_off").onclick=function(){
audio.loop=false;
updateLoop();
console.log("loop off");
};
// Schleife abrufen
document.getElementById("get_loop").onclick=function(){
console.log("audio.loop: " audio.loop);
};
// Metadaten vorladen
document.getElementById("preload_metadata").onclick=function(){
audio.preload="metadata";
updatePreload();
console.log("preload metadata ");
};
// Preload abrufen
document.getElementById("get_preload").onclick=function(){
console.log("audio.preload: " audio.preload) ;
};
// get defaultMuted
document.getElementById("get_default_muted").onclick=function(){
console.log("audio.defaultMuted: " audio.defaultMuted);
};
// stummschalten
document.getElementById("mute").onclick=function(){
audio.muted=true;
updateMuted();
console.log("audio mute ");
};
// Stummschaltung aufheben
document.getElementById("unmute").onclick=function(){
audio.muted=false;
updateMuted();
console.log("audio unmute");
};
// stummgeschaltet werden
document.getElementById("get_muted").onclick=function(){
console.log("audio .muted: " audio.muted);
};
// get defaultPlaybackRate
document.getElementById("get_default_playback_rate").onclick=function(){
console.log("audio.defaultPlaybackRate : " audio.defaultPlaybackRate);
};
// set playbackRate-
document.getElementById("playback_rate_down").onclick=function(){
audio.playbackRate-=0.2;
console.log("playbackRate-0.2");
};
// Wiedergaberate festlegen
document.getElementById("playback_rate_up").onclick=function(){
audio.playbackRate =0.2 ;
console.log("playbackRate 0.2");
};
// Wiedergaberate abrufen
document.getElementById("get_playback_rate").onclick=function(){
console.log ("audio.playbackRate: " audio.playbackRate);
};
// get networkState
document.getElementById("get_network_state").onclick=function(){
console.log(" audio.networkState: " audio.networkState);
};
// get readyState
document.getElementById("get_ready_state").onclick=function(){
console.log("audio. readyState: " audio.readyState);
};
// gepuffert werden
document.getElementById("get_buffered").onclick=function(){
console.log("audio.buffered: ");
var ranges=audio.buffered;
var n=ranges.length;
for(var i=0;i console.log("(" ranges.start(i) "," ranges.end(i) ")");
}
};
// suchbar werden
document.getElementById("get_seekable").onclick= function(){
console.log("audio.seekable:");
var ranges=audio.seekable;
var n=ranges.length;
for(var i=0;i< ;n;i ){
console.log("(" ranges.start(i) "," ranges.end(i) ")");
}
};

// DOM-Ereignisse

// abort
audio.addEventListener("abort",function(){
console.log("event:abort");
});
// canplay
audio.addEventListener("canplay",function(){
console.log("event:canplay");
});
// canplaythrough
Audio .addEventListener("canplaythrough",function(){
console.log("event:canplaythrough");
});
// durationchange
audio.addEventListener("durationchange",function( ){
updateDuration();
console.log("event:durationchange");
});
// geleert
audio.addEventListener("emptied",function(){
updateSrc();
updateCurrentSrc();
updateDuration();
updatePaused();
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
updatePlayed();
console.log("event:emptied");
});
// beendet
audio.addEventListener("ended", function(){
updateEnded();
console.log("event:ended");
});
// geladene Daten
audio.addEventListener("loadeddata",function( ){
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
console.log("event:loadeddata");
});
// geladene Metadaten
audio.addEventListener("loadedmetadata",function(){
console.log("event:loadedmetadata");
});
// Loadstart
audio.addEventListener("loadstart",function(){
console.log("event:loadstart");
});
// pause
audio.addEventListener("pause",function (){
updatePaused();
console.log("event:pause");
});
// abspielen
audio.addEventListener("play",function() {
updatePaused();
console.log("event:play");
});
// abgespielt
audio.addEventListener("playing",function(){
console.log("event:playing");
});
// progress
audio.addEventListener("progress",function(){
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
console.log("event:progress");
});
// ratechange
audio.addEventListener ("ratechange",function(){
updatePlaybackRate();
console.log("event:ratechange");
});
// suched
audio.addEventListener(" suchte",function(){
console.log("event:seeked");
});
// suche
audio.addEventListener("seeking",function(){
console.log("event:seeking");
});
// stalled
audio.addEventListener("stalled",function(){
console.log("event:stalled ");
});
// suspend
audio.addEventListener("suspend",function(){
console.log("event:suspend");
});
// timeupdate
audio.addEventListener("timeupdate",function(){
updateCurrentTime();
updateEnded( );
updatePlayed();
console.log("event:timeupdate");
});
// volumechange
audio.addEventListener("volumechange",function(){
updateVolume();
console.log("event:volumechange");
});
// en attente
audio.addEventListener("waiting",function(){
console.log("event:waiting");
});
updateAutoplay();
updateControls();
updateDefaultMuted();
updateDefaultPlaybackRate();
updateLoop ();
updatePreload();
updateSrc();
updateCurrentSrc();
updateDuration();
updateCurrentTime();
updateVolume();
updatePaused( );
updateMuted();
updateEnded();
updatePlaybackRate();
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable() ;
updatePlayed();
updateError();
};
// fonctions pour mettre à jour la table d'informations
// autoplay
fonction updateAutoplay(){
document.getElementById ("autoplay").innerHTML=audio.autoplay;
}
//controls
function updateControls(){
document.getElementById("controls").innerHTML=audio.controls;
}
// defaultMuted
function updateDefaultMuted(){
document.getElementById("default_muted").innerHTML=audio.defaultMuted;
}
// defaultPlaybackRate
function updateDefaultPlaybackRate( ){
document.getElementById("default_playback_rate").innerHTML=audio.defaultPlaybackRate;
}
// loop
function updateLoop(){
document.getElementById("loop"). innerHTML=audio.loop;
}
// preload
function updatePreload(){
document.getElementById("preload").innerHTML=audio.preload;
}
/ / src
fonction updateSrc(){
document.getElementById("src").innerHTML=audio.src;
}
// currentSrc
fonction updateCurrentSrc(){
document .getElementById("current_src").innerHTML=audio.currentSrc;
}
// durée
function updateDuration(){
document.getElementById("duration").innerHTML=audio.duration;
}
// currentTime
fonction updateCurrentTime(){
document.getElementById("current_time").innerHTML=audio.currentTime;
}
// terminé
fonction updateEnded(){
document.getElementById("ended").innerHTML=audio.ended;
}
// paused
function updatePaused(){
document.getElementById("paused" ).innerHTML=audio.paused;
}
// muted
function updateMuted(){
document.getElementById("muted").innerHTML=audio.muted;
}
// volume
fonction updateVolume(){
document.getElementById("volume").innerHTML=audio.volume;
}
// playbackRate
fonction updatePlaybackRate(){
document.getElementById("playback_rate").innerHTML=audio.playbackRate;
}
// networkState
function updateNetworkState(){
document.getElementById("network_state").innerHTML=audio. networkState;
}
// readyState
function updateReadyState(){
document.getElementById("ready_state").innerHTML=audio.readyState;
}
// buffered
function updateBuffered(){
var ranges=audio.buffered;
var str="";
var n=ranges.length;
for(var i=0;i str ="(" ranges.start(i) "," ranges.end(i) ")";
if(i!=n-1){
str ="
";
}
}
document.getElementById("buffered").innerHTML=str;
}
// seekable
function updateSeekable(){
plages de var =audio.seekable;
var str="";
var n=ranges.length;
for(var i=0;i str ="(" plages .start(i) "," ranges.end(i) ")";
if(i!=n-1){
str ="
";
}
}
document.getElementById("seekable").innerHTML=str;
}
//played
function updatePlayed(){
var ranges=audio.played;
var str= "";
var n=ranges.length;
for(var i=0;i str ="(" ranges.start(i) "," ranges.end (i) ")";
if(i!=n-1){
str ="
";
}
}
document.getElementById("played") .innerHTML=str;
}
// error
function updateError(){
document.getElementById("error").innerHTML=audio.error;
}