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e00b5663
编写于
7月 08, 2022
作者:
O
openharmony_ci
提交者:
Gitee
7月 08, 2022
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!6397 注释使用不当
Merge pull request !6397 from 吴永知/master
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zh-cn/application-dev/media/audio-playback.md
zh-cn/application-dev/media/audio-playback.md
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zh-cn/application-dev/media/audio-playback.md
浏览文件 @
e00b5663
...
...
@@ -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
}
}
```
...
...
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