问颤振:当应用程序在ios的背景中时，如何修复来电显示不显示来电显示？

EN

const key = fs.readFileSync(__dirname + "/AuthKey_XXXXXXXXXX.p8", 'utf8');

//"iat" should not be older than 1 hr from current time or will get rejected
const token = jwt.sign(
    {
        iss: "XXXXXXXXX", //"team ID" of your developer account
        iat: Math.floor(new Date().getTime() / 1000)
    },
    key,
    {
        header: {
            alg: "ES256",
            kid: "XXXXXXXXXXX", //issuer key which is "key ID" of your p8 file
        }
    }
);
const options = {
      ':method': 'POST',
      ':scheme': 'https',
      ':path': '/3/device/' + deviceToken,
      'apns-topic': 'XXX.ANEXAMPLE.ID.voip',//VERY IMPORTANT TO ADD THE .voip here
      'apns-push-type': 'voip',
      'apns-priority': '10',
      'apns-expiration': '0',
      'authorization': `bearer ${token}`
};

const uuid = crypto.randomUUID()

fullName = change.data().firstName + ' ' + change.data().lastName;
body = {
    uuid: uuid,
    caller_id: context.params.callerId,
    caller_name: context.params.callerId,
    has_video: true,
    caller_id_type: "number"
};
strBody = JSON.stringify(body);

console.log("BODY: " + strBody);

let data = '';
const client = http2.connect('https://api.push.apple.com');
buff = Buffer.from(strBody);
req = client.request(options);
req.write(buff);
req.on('response', (headers) => {
      for (const name in headers) {
        console.log(`${name}: ${headers[name]}`)
      }
    })
    .on('data', (chunk) => { data += chunk })
    .on('end', () => {
      console.log(`\n${data}`)
      client.close()
    })
    .on('error', (err) => console.error(err));
req.end();