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[英]NPM error TS2304: Cannot find name 'VRDisplay' for ThreeJS
[英]error TS2304: Cannot find name 'QRScanner'
我參考https://www.npmjs.com/package/cordova-plugin-qrscanner並嘗試在我的移動應用程序中創建 QR 掃描 function。
因此,對於第一步,我在我的 ts 文件中創建以下代碼:
function onDone(err, status){
if (err) {
// here we can handle errors and clean up any loose ends.
console.error(err);
}
if (status.authorized) {
// W00t, you have camera access and the scanner is initialized.
// QRscanner.show() should feel very fast.
} else if (status.denied) {
// The video preview will remain black, and scanning is disabled. We can
// try to ask the user to change their mind, but we'll have to send them
// to their device settings with `QRScanner.openSettings()`.
} else {
// we didn't get permission, but we didn't get permanently denied. (On
// Android, a denial isn't permanent unless the user checks the "Don't
// ask again" box.) We can ask again at the next relevant opportunity.
}
}
QRScanner.prepare(onDone);
但是,當我嘗試構建時出現錯誤。
TS2304:找不到名稱“QRScanner”
以下是我的版本:
而我在 package.json 中的 cordova-plugin-qrscanner 版本是:
"@types/cordova-plugin-qrscanner": "^1.0.31",
"cordova-plugin-qrscanner": "^3.0.1",
再會,
我找到了解決方案,以下是我的一些理解。 此代碼適用於舊版本的 angular。我使用的是 angular 10,因此,需要先定義QRScanner
object。 這是:
declare var QRScanner: any
;
或者使用( < any > window).QRScanner
來訪問 QRScanner 插件。
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