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nativescript-barcodescanner
Advanced tools
Scan a barcode (or a QR code, or a lot of other formats really)
Set your Android target to level 23.
NativeScript 1.2.3+ for iOS, 1.3.0+ for Android (tns --version
), so please upgrade if you need to.
If -for some reason- you need to build for {N} 1.2 on Android, please use this branch.
From the command prompt go to your app's root folder and execute:
tns plugin add nativescript-barcodescanner
var barcodescanner = require("nativescript-barcodescanner");
barcodescanner.scan({
cancelLabel: "Stop scanning", // iOS only, default 'Close'
message: "Go scan something", // Android only, default is 'Place a barcode inside the viewfinder rectangle to scan it.'
preferFrontCamera: false, // Android only, default false
showFlipCameraButton: true // Android only, default false (on iOS it's always available)
}).then(
function(result) {
console.log("Scan format: " + result.format);
console.log("Scan text: " + result.text);
},
function(error) {
console.log("No scan: " + error);
}
)
Note that the Android implementation will always return true
at the moment.
var barcodescanner = require("nativescript-barcodescanner");
barcodescanner.available().then(
function(avail) {
console.log("Available? " + avail);
}
);
On Android 6 you need to request permission to use the camera at runtime when targeting API level 23+.
Even if the uses-permission
tag for the Camera is present in AndroidManifest.xml
.
Note that hasCameraPermission
will return true when:
barcodescanner.hasCameraPermission().then(
function(granted) {
// if this is 'false' you probably want to call 'requestCameraPermission' now
console.log("Has Camera Permission? " + result);
}
);
// if no permission was granted previously this wil open a user consent screen
barcodescanner.requestCameraPermission().then(
function() {
console.log("Camera permission requested");
}
);
Note that the scan
function will also check fr permission and ask for it if it wasn't previously granted.
If you're relying on that, then you should know that since we're not catching the consent result
the user will then need to allow camera access and launch the scanner again.
FAQs
Scan QR/barcodes with your NativeScript app.
The npm package nativescript-barcodescanner receives a total of 150 weekly downloads. As such, nativescript-barcodescanner popularity was classified as not popular.
We found that nativescript-barcodescanner demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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