tangem-app-android-audited/app/src/main/java/com/tangem/presentation/activity/QrScanActivity.kt
2019-01-26 15:15:44 +03:00

72 lines
No EOL
2.2 KiB
Kotlin

package com.tangem.presentation.activity
import android.Manifest
import android.app.Activity
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.os.Bundle
import androidx.core.app.ActivityCompat
import androidx.appcompat.app.AppCompatActivity
import com.google.zxing.Result
import com.tangem.Constant
import me.dm7.barcodescanner.zxing.ZXingScannerView
class QrScanActivity : AppCompatActivity(), ZXingScannerView.ResultHandler {
companion object {
fun callingIntent(context: Context): Intent {
return Intent(context, QrScanActivity::class.java)
}
}
private var scannerView: ZXingScannerView? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)
ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.CAMERA), 1)
else
runScanner()
}
override fun onPause() {
super.onPause()
scannerView?.stopCamera()
}
override fun onResume() {
super.onResume()
scannerView?.startCamera()
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
when (requestCode) {
1 -> {
if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)
runScanner()
else {
setResult(Activity.RESULT_CANCELED)
finish()
}
}
}
}
override fun handleResult(result: Result) {
val data = Intent()
data.putExtra(Constant.EXTRA_QR_CODE, result.text)
setResult(Activity.RESULT_OK, data)
finish()
}
private fun runScanner() {
// programmatically initialize the scanner view
scannerView = ZXingScannerView(this)
setContentView(scannerView)
// register ourselves as a handler for scan results.
scannerView?.setResultHandler(this)
scannerView?.startCamera()
}
}