93 lines
2.8 KiB
Kotlin
93 lines
2.8 KiB
Kotlin
package de.mintware.barcode_scan
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import android.app.Activity
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import android.content.Intent
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import io.flutter.embedding.engine.plugins.FlutterPlugin
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import io.flutter.embedding.engine.plugins.activity.ActivityAware
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import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
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import io.flutter.plugin.common.MethodCall
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import io.flutter.plugin.common.MethodChannel
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import io.flutter.plugin.common.MethodChannel.MethodCallHandler
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import io.flutter.plugin.common.MethodChannel.Result
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import io.flutter.plugin.common.PluginRegistry
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import io.flutter.plugin.common.PluginRegistry.Registrar
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class BarcodeScanPlugin(): MethodCallHandler, PluginRegistry.ActivityResultListener, FlutterPlugin, ActivityAware {
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private var result : Result? = null
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private var channel: MethodChannel? = null
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private var activity: Activity? = null
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constructor(activity: Activity?) : this() {
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this.activity = activity
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}
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companion object {
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@JvmStatic
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fun registerWith(registrar: Registrar) {
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val channel = MethodChannel(registrar.messenger(), "de.mintware.barcode_scan")
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if (registrar.activity() != null) {
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val plugin = BarcodeScanPlugin(registrar.activity())
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channel.setMethodCallHandler(plugin)
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registrar.addActivityResultListener(plugin)
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}
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}
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}
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override fun onMethodCall(call: MethodCall, result: Result) {
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if (call.method == "scan") {
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this.result = result
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showBarcodeView()
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} else {
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result.notImplemented()
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}
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}
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private fun showBarcodeView() {
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activity?.let {
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val intent = Intent(it, BarcodeScannerActivity::class.java)
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it.startActivityForResult(intent, 100)
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}
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}
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override fun onActivityResult(code: Int, resultCode: Int, data: Intent?): Boolean {
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if (code == 100) {
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if (resultCode == Activity.RESULT_OK) {
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val barcode = data?.getStringExtra("SCAN_RESULT")
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barcode?.let { this.result?.success(barcode) }
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} else {
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val errorCode = data?.getStringExtra("ERROR_CODE")
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this.result?.error(errorCode, null, null)
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}
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return true
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}
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return false
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}
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override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
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channel = MethodChannel(binding.binaryMessenger, "de.mintware.barcode_scan")
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}
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override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
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channel?.setMethodCallHandler(null)
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}
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override fun onAttachedToActivity(binding: ActivityPluginBinding) {
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val plugin = BarcodeScanPlugin(binding.activity)
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channel?.setMethodCallHandler(plugin)
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binding.addActivityResultListener(plugin)
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}
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override fun onDetachedFromActivity() {
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}
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override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
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onAttachedToActivity(binding)
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}
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override fun onDetachedFromActivityForConfigChanges() {
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onDetachedFromActivity()
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}
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}
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