From 5cbb445b8c7df433356ee248fcbe012f896db119 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=90=B4=E6=B0=B8=E7=9F=A5?= Date: Wed, 6 Jul 2022 03:43:33 +0000 Subject: [PATCH] =?UTF-8?q?update=20zh-cn/application-dev/media/audio-play?= =?UTF-8?q?back.md.=20=E6=A0=B9=E6=8D=AEapp=5Fsamples=E4=BB=93=E4=BB=A3?= =?UTF-8?q?=E7=A0=81=E6=8F=90=E4=BA=A4=E8=A7=84=E8=8C=8324=E6=9D=A1,?= =?UTF-8?q?=E6=B3=A8=E9=87=8A=E2=80=9C//=E2=80=9D=E5=90=8E=E8=A6=81?= =?UTF-8?q?=E5=8A=A0=E4=B8=80=E4=B8=AA=E7=A9=BA=E6=A0=BC=EF=BC=9B=E5=A6=82?= =?UTF-8?q?=E6=9E=9C=E6=B3=A8=E9=87=8A=E8=B7=9F=E5=9C=A8=E4=BB=A3=E7=A0=81?= =?UTF-8?q?=E5=90=8E=E9=9D=A2=EF=BC=8C=E5=88=99=E2=80=9C//=E2=80=9D?= =?UTF-8?q?=E5=89=8D=E8=A6=81=E5=8A=A0=E4=B8=80=E4=B8=AA=E7=A9=BA=E6=A0=BC?= =?UTF-8?q?=EF=BC=9B=20Signed-off-by:=20=E5=90=B4=E6=B0=B8=E7=9F=A5=20?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- zh-cn/application-dev/media/audio-playback.md | 90 +++++++++---------- 1 file changed, 45 insertions(+), 45 deletions(-) diff --git a/zh-cn/application-dev/media/audio-playback.md b/zh-cn/application-dev/media/audio-playback.md index b63533b2de..f58d0a7c98 100644 --- a/zh-cn/application-dev/media/audio-playback.md +++ b/zh-cn/application-dev/media/audio-playback.md @@ -28,7 +28,7 @@ AudioPlayer支持的src媒体源输入类型可参考：[src属性说明](../ref import media from '@ohos.multimedia.media' import fileIO from '@ohos.fileio' -//打印码流轨道信息 +// 打印码流轨道信息 function printfDescription(obj) { for (let item in obj) { let property = obj[item]; @@ -37,40 +37,40 @@ function printfDescription(obj) { } } -//设置播放器回调函数 +// 设置播放器回调函数 function setCallBack(audioPlayer) { - audioPlayer.on('dataLoad', () => { //设置'dataLoad'事件回调，src属性设置成功后，触发此回调 + audioPlayer.on('dataLoad', () => { // 设置'dataLoad'事件回调，src属性设置成功后，触发此回调 console.info('audio set source success'); - audioPlayer.play(); //需等待'dataLoad'事件回调完成后，才可调用play进行播放，触发'play'事件回调 + audioPlayer.play(); // 需等待'dataLoad'事件回调完成后，才可调用play进行播放，触发'play'事件回调 }); - audioPlayer.on('play', () => { //设置'play'事件回调 + audioPlayer.on('play', () => { // 设置'play'事件回调 console.info('audio play success'); - audioPlayer.pause(); //触发'pause'事件回调，暂停播放 + audioPlayer.pause(); // 触发'pause'事件回调，暂停播放 }); - audioPlayer.on('pause', () => { //设置'pause'事件回调 + audioPlayer.on('pause', () => { // 设置'pause'事件回调 console.info('audio pause success'); - audioPlayer.seek(5000); //触发'timeUpdate'事件回调，seek到5000ms处播放 + audioPlayer.seek(5000); // 触发'timeUpdate'事件回调，seek到5000ms处播放 }); - audioPlayer.on('stop', () => { //设置'stop'事件回调 + audioPlayer.on('stop', () => { // 设置'stop'事件回调 console.info('audio stop success'); - audioPlayer.reset(); //触发'reset'事件回调后，重新设置src属性，可完成切歌 + audioPlayer.reset(); // 触发'reset'事件回调后，重新设置src属性，可完成切歌 }); - audioPlayer.on('reset', () => { //设置'reset'事件回调 + audioPlayer.on('reset', () => { // 设置'reset'事件回调 console.info('audio reset success'); - audioPlayer.release(); //audioPlayer资源被销毁 + audioPlayer.release(); // audioPlayer资源被销毁 audioPlayer = undefined; }); - audioPlayer.on('timeUpdate', (seekDoneTime) => {//设置'timeUpdate'事件回调 + audioPlayer.on('timeUpdate', (seekDoneTime) => { // 设置'timeUpdate'事件回调 if (typeof(seekDoneTime) == 'undefined') { console.info('audio seek fail'); return; } console.info('audio seek success, and seek time is ' + seekDoneTime); - audioPlayer.setVolume(0.5); //触发'volumeChange'事件回调 + audioPlayer.setVolume(0.5); // 触发'volumeChange'事件回调 }); - audioPlayer.on('volumeChange', () => { //设置'volumeChange'事件回调 + audioPlayer.on('volumeChange', () => { // 设置'volumeChange'事件回调 console.info('audio volumeChange success'); - audioPlayer.getTrackDescription((error, arrlist) => { //通过回调方式获取音频轨道信息 + audioPlayer.getTrackDescription((error, arrlist) => { // 通过回调方式获取音频轨道信息 if (typeof (arrlist) != 'undefined') { for (let i = 0; i < arrlist.length; i++) { printfDescription(arrlist[i]); @@ -78,13 +78,13 @@ function setCallBack(audioPlayer) { } else { console.log(`audio getTrackDescription fail, error:${error.message}`); } - audioPlayer.stop(); //触发'stop'事件回调，停止播放 + audioPlayer.stop(); // 触发'stop'事件回调，停止播放 }); }); - audioPlayer.on('finish', () => { //设置'finish'事件回调，播放完成触发 + audioPlayer.on('finish', () => { // 设置'finish'事件回调，播放完成触发 console.info('audio play finish'); }); - audioPlayer.on('error', (error) => { //设置'error'事件回调 + audioPlayer.on('error', (error) => { // 设置'error'事件回调 console.info(`audio error called, errName is ${error.name}`); console.info(`audio error called, errCode is ${error.code}`); console.info(`audio error called, errMessage is ${error.message}`); @@ -94,8 +94,8 @@ function setCallBack(audioPlayer) { async function audioPlayerDemo() { // 1. 创建实例 let audioPlayer = media.createAudioPlayer(); - setCallBack(audioPlayer); //设置事件回调 - //2. 用户选择音频，设置uri + setCallBack(audioPlayer); // 设置事件回调 + // 2. 用户选择音频，设置uri let fdPath = 'fd://' // path路径的码流可通过"hdc file send D:\xxx\01.mp3 /data/app/el1/bundle/public/ohos.acts.multimedia.audio.audioplayer/ohos.acts.multimedia.audio.audioplayer/assets/entry/resources/rawfile" 命令，将其推送到设备上 let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.audio.audioplayer/ohos.acts.multimedia.audio.audioplayer/assets/entry/resources/rawfile/01.mp3'; @@ -107,7 +107,7 @@ async function audioPlayerDemo() { }).catch((err) => { console.info('open fd failed err is' + err); }); - audioPlayer.src = fdPath; //设置src属性，并触发'dataLoad'事件回调 + audioPlayer.src = fdPath; // 设置src属性，并触发'dataLoad'事件回调 } ``` @@ -119,23 +119,23 @@ import fileIO from '@ohos.fileio' export class AudioDemo { // 设置播放器回调函数 setCallBack(audioPlayer) { - audioPlayer.on('dataLoad', () => { //设置'dataLoad'事件回调，src属性设置成功后，触发此回调 + audioPlayer.on('dataLoad', () => { // 设置'dataLoad'事件回调，src属性设置成功后，触发此回调 console.info('audio set source success'); - audioPlayer.play(); //调用play方法开始播放，触发'play'事件回调 + audioPlayer.play(); // 调用play方法开始播放，触发'play'事件回调 }); - audioPlayer.on('play', () => { //设置'play'事件回调 + audioPlayer.on('play', () => { // 设置'play'事件回调 console.info('audio play success'); }); - audioPlayer.on('finish', () => { //设置'finish'事件回调，播放完成触发 + audioPlayer.on('finish', () => { // 设置'finish'事件回调，播放完成触发 console.info('audio play finish'); - audioPlayer.release(); //audioPlayer资源被销毁 + audioPlayer.release(); // audioPlayer资源被销毁 audioPlayer = undefined; }); } async audioPlayerDemo() { - let audioPlayer = media.createAudioPlayer(); //创建一个音频播放实例 - this.setCallBack(audioPlayer); //设置事件回调 + let audioPlayer = media.createAudioPlayer(); // 创建一个音频播放实例 + this.setCallBack(audioPlayer); // 设置事件回调 let fdPath = 'fd://' // path路径的码流可通过"hdc file send D:\xxx\01.mp3 /data/app/el1/bundle/public/ohos.acts.multimedia.audio.audioplayer/ohos.acts.multimedia.audio.audioplayer/assets/entry/resources/rawfile" 命令，将其推送到设备上 let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.audio.audioplayer/ohos.acts.multimedia.audio.audioplayer/assets/entry/resources/rawfile/01.mp3'; @@ -147,7 +147,7 @@ export class AudioDemo { }).catch((err) => { console.info('open fd failed err is' + err); }); - audioPlayer.src = fdPath; //设置src属性，并触发'dataLoad'事件回调 + audioPlayer.src = fdPath; // 设置src属性，并触发'dataLoad'事件回调 } } ``` @@ -161,20 +161,20 @@ export class AudioDemo { // 设置播放器回调函数 private isNextMusic = false; setCallBack(audioPlayer) { - audioPlayer.on('dataLoad', () => { //设置'dataLoad'事件回调，src属性设置成功后，触发此回调 + audioPlayer.on('dataLoad', () => { // 设置'dataLoad'事件回调，src属性设置成功后，触发此回调 console.info('audio set source success'); - audioPlayer.play(); //调用play方法开始播放，触发'play'事件回调 + audioPlayer.play(); // 调用play方法开始播放，触发'play'事件回调 }); - audioPlayer.on('play', () => { //设置'play'事件回调 + audioPlayer.on('play', () => { // 设置'play'事件回调 console.info('audio play success'); - audioPlayer.reset(); //调用reset方法，触发'reset'事件回调 + audioPlayer.reset(); // 调用reset方法，触发'reset'事件回调 }); - audioPlayer.on('reset', () => { //设置'reset'事件回调 + audioPlayer.on('reset', () => { // 设置'reset'事件回调 console.info('audio play success'); - if (!this.isNextMusic) { //当isNextMusic 为false时，实现切歌功能 - this.nextMusic(audioPlayer); //实现切歌功能 + if (!this.isNextMusic) { // 当isNextMusic 为false时，实现切歌功能 + this.nextMusic(audioPlayer); // 实现切歌功能 } else { - audioPlayer.release(); //audioPlayer资源被销毁 + audioPlayer.release(); // audioPlayer资源被销毁 audioPlayer = undefined; } }); @@ -223,19 +223,19 @@ import fileIO from '@ohos.fileio' export class AudioDemo { // 设置播放器回调函数 setCallBack(audioPlayer) { - audioPlayer.on('dataLoad', () => { //设置'dataLoad'事件回调，src属性设置成功后，触发此回调 + audioPlayer.on('dataLoad', () => { // 设置'dataLoad'事件回调，src属性设置成功后，触发此回调 console.info('audio set source success'); - audioPlayer.loop = true; //设置循环播放属性 - audioPlayer.play(); //调用play方法开始播放，触发'play'事件回调 + audioPlayer.loop = true; // 设置循环播放属性 + audioPlayer.play(); // 调用play方法开始播放，触发'play'事件回调 }); - audioPlayer.on('play', () => { //设置'play'事件回调,开始循环播放 + audioPlayer.on('play', () => { // 设置'play'事件回调,开始循环播放 console.info('audio play success'); }); } async audioPlayerDemo() { - let audioPlayer = media.createAudioPlayer(); //创建一个音频播放实例 - this.setCallBack(audioPlayer); //设置事件回调 + let audioPlayer = media.createAudioPlayer(); // 创建一个音频播放实例 + this.setCallBack(audioPlayer); // 设置事件回调 let fdPath = 'fd://' // path路径的码流可通过"hdc file send D:\xxx\01.mp3 /data/app/el1/bundle/public/ohos.acts.multimedia.audio.audioplayer/ohos.acts.multimedia.audio.audioplayer/assets/entry/resources/rawfile" 命令，将其推送到设备上 let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.audio.audioplayer/ohos.acts.multimedia.audio.audioplayer/assets/entry/resources/rawfile/01.mp3'; @@ -247,7 +247,7 @@ export class AudioDemo { }).catch((err) => { console.info('open fd failed err is' + err); }); - audioPlayer.src = fdPath; //设置src属性，并触发'dataLoad'事件回调 + audioPlayer.src = fdPath; // 设置src属性，并触发'dataLoad'事件回调 } } ``` -- GitLab