音频播放
导入模块
import audio from '@ohos.multimedia.media';
权限
无
方法
createAudioPlayer()
创建音频播放的实例来控制音频的播放。
返回值:
示例:
var audioplayer = audio.createAudioPlayer();
附录
AudioPlayer
音频播放器。
属性
play()
开始播放音频资源。
示例:
audioplayer.on('dataload', (err, action) => {
if (err) {
console.info('Error returned in the prepare() callback.');
return;
}
console.info('Start to play the audio.');
audioplayer.play();
};
audioplayer.on('play', (err, action) => {
if (err) {
console.info('Error returned in the play() callback.');
return;
}
console.info('Succeeded in playing the audio.');
};
audioplayer.src = 'common/mydream.mp3';
pause()
暂停播放音频资源。
示例:
audioplayer.on('dataload', (err, action) => {
if (err) {
console.info('Error returned in the prepare() callback.');
return;
}
console.info('Start to play the audio.');
audioplayer.play();
}
audioplayer.on('play', (err, action) => {
if (err) {
console.info('Error returned in the play() callback.');
return;
}
console.info('Start to pause audio playback.');
audioplayer.pause();
};
audioplayer.on('pause', (err, action) => {
if (err) {
console.info('Error returned in the pause() callback.');
return;
}
console.info('Succeeded in pausing audio playback.');
};
audioplayer.src = 'common/mydream.mp3';
stop()
停止播放音频资源。
示例:
audioplayer.on('dataload', (err, action) => {
if (err) {
console.info('Error returned in the prepare() callback.');
return;
}
console.info('Start to play the audio.');
audioplayer.play();
};
audioplayer.on('play', (err, action) => {
if (err) {
console.info('Error returned in the play() callback.');
return;
}
console.info('Start to pause audio playback.');
audioplayer.pause();
};
audioplayer.on('stop', (err, action) => {
if (err) {
console.info('Error returned in the stop() callback.');
return;
}
console.info('Succeeded in stopping audio playback.');
};
audioplayer.src = 'common/mydream.mp3';
seek(number)
跳转到指定播放位置。
参数:
示例:
audioplayer.on('dataload', (err, action) => {
if (err) {
console.info('Error returned in the prepare() callback.');
return;
}
console.info('Start to play the audio.');
audioplayer.play();
};
audioplayer.on('play', (err, action) => {
if (err) {
console.info('Error returned in the play() callback.');
return;
}
console.info('Succeeded in playing the audio.')
};
audioplayer.on('timeUpdate', (seekTime, action) => {
console.info('Seek time returned in the seek() callback: ' + seekTime);
var newTime = audioplayer.currenTime;
if(newTime == 30000) {
console.info('Seek succeeded. New time: ' + newTime);
} else {
console.info('Seek failed.');
}
};
audioplayer.src = 'common/mydream.mp3';
audioplayer.seek(30000);
setVolume(number)
设置音量。
参数:
示例:
audioplayer.on('dataload', (err, action) => {
if (err) {
console.error('Error returned in the prepare() callback.');
return;
}
console.info('Start to play the audio.');
audioplayer.play();
};
audioplayer.on('play', (err, action) => {
if (err) {
console.error('Error returned in the play() callback.');
return;
}
console.info('Succeeded in playing the audio.')
};
audioplayer.on('volumeChange', (err, action) => {
if (err) {
console.error('Error returned in the setVolume() callback.');
return;
}
console.info('Playback volume changed.');
};
audioplayer.src = 'common/mydream.mp3';
audioplayer.setVolume(0.5);
reset()7+
切换播放音频资源。
示例:
audioplayer.on('dataload', (err, action) => {
if (err) {
console.error('Error returned in the prepare() callback.');
return;
}
console.info('Start to reset audio playback.');
audioplayer.reset();
};
audioplayer.on('reset', (err, action) => {
if (err) {
console.error('Error returned in the reset() callback.');
return;
}
console.info('Reset succeeded.');
};
audioplayer.src = 'common/mydream.mp3';
release()
释放音频资源。
示例:
audioplay.release();
事件
play
在调用play方法后的回调事件。
pause
在调用pause方法后的回调事件。
stop
在调用stop方法后的回调事件。
dataLoad
在音频数据加载后的回调事件。
timeUpdate
在播放时间改变后的回调事件。
volumeChange
在播放音量改变后的回调事件。
finish
在播放完成后的回调事件。
error
在播放错误时的回调事件。
AudioState
音频播放的状态机。