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Updated on 2026-08-14

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Tangem 2025-05-16 19:27:20 +05:00
parent 220598aff7
commit f9f45e1c8a
8 changed files with 124 additions and 30 deletions
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29
app/src/main/java/com/tangem/tap/common/extensions/String.kt
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@ -1,34 +1,5 @@
package com.tangem.tap.common.extensions
import android.graphics.Bitmap
import android.graphics.Color
import com.google.zxing.BarcodeFormat
import com.google.zxing.EncodeHintType
import com.google.zxing.qrcode.QRCodeWriter
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
import java.util.Hashtable
@Suppress("MagicNumber")
fun String.toQrCode(): Bitmap {
val hintMap = Hashtable<EncodeHintType, Any>()
hintMap[EncodeHintType.ERROR_CORRECTION] = ErrorCorrectionLevel.M // H = 30% damage
hintMap[EncodeHintType.MARGIN] = 2
val qrCodeWriter = QRCodeWriter()
val size = 256
val bitMatrix = qrCodeWriter.encode(this, BarcodeFormat.QR_CODE, size, size, hintMap)
val width = bitMatrix.width
val bmp = Bitmap.createBitmap(width, width, Bitmap.Config.RGB_565)
for (x in 0 until width) {
for (y in 0 until width) {
bmp.setPixel(y, x, if (bitMatrix.get(x, y)) Color.BLACK else Color.WHITE)
}
}
return bmp
}
fun String.removePrefixOrNull(prefix: String): String? = when {
startsWith(prefix) -> substring(prefix.length)
else -> null