最近开发一个代取快递的功能模块,需求是当快递取到之后要给用户一个反应,也就是以语音提示的方法给用户提示
因为提示的文字是固定的,所以其实思路就是利用文字辨认,之后转换为语音进行播报这么一个思路
可是问题就在于客户端怎么进行判断快递到达
这边的话是采用,服务人员确认取件---服务器改变状况----给与客户端提示,客户端进行语音播报,
可是!!!!首先要保持客户端的运转,可所以后台,也可所以锁屏状况,可是必定要是运转的,然后在整个客户端加赞的时分设置守时器,守时判断一个开关的状况
当服务器给与客户端反应的时分就可以进行语音播报,并重置整个开关的状况
文字转换为语音的代码如下,这个是一个在uni-app插件商场的小哥制作的,也可以去插件商场进行搜索,这边仅做记载
const audioTeam = [];
let audioStartSwitch = false;
const getAudioUrl = 'https://tsn.baidu.com/text2audio';
/**
* 浏览器调用语音合成接口
* 获取token接口: https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=uFYiXWMCiYvx68V4EVyCGeL8j4GAzXD5&client_secret=897Mm2qCj7bC1eHYVDxaWrO38FscTOHD
*/
function getBDVoicToken() {
return new Promise((rs, rj) => {
console.log('准备访问接口获取语音token')
uni.request({ // 强烈建议此接口由后端访问并且维护token有效期,否则前端每次访问都会刷新token
//此url为专门插件测试预览用的key和secret key, 请替换为自己申请的key
url: 'https://openapi.baidu.com/oauth/2.0/token',
method: 'POST', //建议使用post访问
// data: 'grant_type=client_credentials&client_id=nm6Os9qqOacgxXjKv8PIp45H&client_secret=BXHhGIpNU7Wi3GDYUt0AGY5cWbWklrov',
data: 'grant_type=client_credentials&client_id=jtwoB9xzRnv3qltcfqL0pk1t&client_secret=A16UKHBKVeAh68kuGGSPqnemCVyPDmgb',
header: {
"content-type": "application/x-www-form-urlencoded"
},
success: (res) => {
console.log('访问成功');
rs(res);
},
fail: (err) => {
console.log('访问失败');
rj(err);
}
})
})
}
export default function openVoice(objs) { // 传入需转为语音的文本内容
let lineUp = false;
let returnAudio = false;
if (typeof(objs) !== 'string') {
if (objs && objs.lineUp === true) {
lineUp = true;
}
if (objs && objs.returnAudio === true) {
returnAudio = true;
}
}
if(returnAudio) {
return new Promise((resolve, reject)=>{
openVoiceFc(objs, returnAudio).then(res=>{
resolve(res);
}).catch(err=>{
reject(err)
});
})
}
if (!audioStartSwitch || lineUp) {
audioStartSwitch = true;
openVoiceFc(objs);
} else {
audioTeam.push(objs);
}
}
function openVoiceFc(objs, returnAudio) {
console.log('准备获取语音tok');
if(returnAudio) {
return new Promise((resolve, reject)=>{
getBDVoicToken().then(res => {
console.log('获取语音tok接口成功');
if (res.data && res.data.access_token) {
console.log('token: ' + res.data.access_token);
resolve(tts(objs, res.data.access_token, returnAudio));
} else {
console.log('获取语音tok接口为空');
reject('获取语音tok接口为空');
}
}).catch(err => {
console.log('获取语音tok接口失败');
reject(err||'获取语音tok接口失败');
})
})
}else{
getBDVoicToken().then(res => {
console.log('获取语音tok接口成功');
if (res.data && res.data.access_token) {
console.log('token: ' + res.data.access_token);
tts(objs, res.data.access_token);
} else {
console.log('获取语音tok接口为空');
}
}).catch(err => {
console.log('获取语音tok接口失败');
})
}
}
function tts(objs, tok, returnAudio) {
if(typeof(objs)=='string')
objs = {voiceSet: {tex: objs}};
const data = {
tok,
cuid: tok,
ctp: 1,
lan: 'zh',
...objs.voiceSet
}
if(returnAudio)
return btts( data, objs.audioSet, objs.audioCallback, objs.lineUp, returnAudio);
btts( data, objs.audioSet, objs.audioCallback, objs.lineUp, returnAudio);
}
function setAudioSet(options, audio) {
if (options) {
audio.volume = options.volume || 1;
audio.startTime = options.startTime || 0;
audio.loop = options.loop || false;
audio.obeyMuteSwitch = options.obeyMuteSwitch && typeof(options.obeyMuteSwitch) == 'boolean' ? options.obeyMuteSwitch :
true; //支持微信小程序、百度小程序、头条小程序
}
}
function btts(param, options, audioCallback, lineUp, returnAudio) {
let audio = uni.createInnerAudioContext();
setAudioSet(options, audio);
// 序列化参数列表
let fd = [];
for (let k in param) {
fd.push(k + '=' + encodeURIComponent(encodeURIComponent(param[k])));
}
audio.src = `${getAudioUrl}?${fd.join('&')}`;
if(returnAudio) {
audio.onEnded(() => {
console.log('音频播放结束');
console.log('销毁音频实例');
audio.destroy(); //销毁音频实例
audio = null;
})
audio.onError((e)=>{
if (audioCallback && audioCallback.onError && typeof(audioCallback.onError) == 'function') audioCallback.onError(e);
console.log('音频播放错误: ' + JSON.stringify(e));
console.log('销毁音频实例');
audio.destroy(); //销毁音频实例
audio = null;
})
return audio;
}
audio.onPlay(() => {
console.log('音频播放开始');
if (audioCallback && audioCallback.onPlay && typeof(audioCallback.onPlay) == 'function') audioCallback.onPlay();
})
audio.onPause(()=>{
if (audioCallback && audioCallback.onPause && typeof(audioCallback.onPause) == 'function') audioCallback.onPause();
})
audio.onWaiting(()=>{
if (audioCallback && audioCallback.onWaiting && typeof(audioCallback.onWaiting) == 'function') audioCallback.onWaiting();
})
audio.onStop(()=>{
if (audioCallback && audioCallback.onStop && typeof(audioCallback.onStop) == 'function') audioCallback.onStop();
})
audio.onTimeUpdate(()=>{
if (audioCallback && audioCallback.onTimeUpdate && typeof(audioCallback.onTimeUpdate) == 'function') audioCallback.onTimeUpdate();
})
audio.onSeeking(()=>{
if (audioCallback && audioCallback.onSeeking && typeof(audioCallback.onSeeking) == 'function') audioCallback.onSeeking();
})
audio.onSeeked(()=>{
if (audioCallback && audioCallback.onSeeked && typeof(audioCallback.onSeeked) == 'function') audioCallback.onSeeked();
})
audio.onEnded(() => {
console.log('音频播放结束');
console.log('销毁音频实例');
audio.destroy(); //销毁音频实例
audio = null;
if (audioCallback && audioCallback.onEnded && typeof(audioCallback.onEnded) == 'function') audioCallback.onEnded();
if (lineUp !== false) {
if (audioTeam.length > 0) {
console.log('队列中');
openVoiceFc(audioTeam[0]);
audioTeam.splice(0, 1);
} else {
console.log('队列为零');
audioStartSwitch = false;
}
}
})
audio.onError((e)=>{
if (audioCallback && audioCallback.onError && typeof(audioCallback.onError) == 'function') audioCallback.onError(e);
console.log('音频播放错误: ' + JSON.stringify(e));
console.log('销毁音频实例');
audio.destroy(); //销毁音频实例
audio = null;
})
audio.play();
}