FlutterPlugins/flutter_barcode_reader
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Code Issues Releases Wiki Activity

avoid use Registrar.activity() before flutter engine is attached to android Activity

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this add support for use this plugin in apps with add-to-app feature
This commit is contained in:
Santi Hoyos 2019-12-18 17:43:01 +01:00
parent 39ecc57bc0
commit 2a2a3e0899
1 changed files with 39 additions and 36 deletions
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75
android/src/main/kotlin/com/apptreesoftware/barcodescan/BarcodeScanPlugin.kt
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@ -2,53 +2,56 @@ package com.apptreesoftware.barcodescan
import android.app.Activity
import android.content.Intent
import android.util.Log
import io.flutter.plugin.common.MethodCall
import io.flutter.plugin.common.MethodChannel
import io.flutter.plugin.common.MethodChannel.MethodCallHandler
import io.flutter.plugin.common.MethodChannel.Result
import io.flutter.plugin.common.MethodCall
import io.flutter.plugin.common.PluginRegistry
import io.flutter.plugin.common.PluginRegistry.Registrar
class BarcodeScanPlugin(val activity: Activity): MethodCallHandler,
PluginRegistry.ActivityResultListener {
var result : Result? = null
companion object {
@JvmStatic
fun registerWith(registrar: Registrar): Unit {
val channel = MethodChannel(registrar.messenger(), "com.apptreesoftware.barcode_scan")
if (registrar.activity() != null) {
val plugin = BarcodeScanPlugin(registrar.activity())
class BarcodeScanPlugin(private val registrar: Registrar) : MethodCallHandler, PluginRegistry.ActivityResultListener {
var result: Result? = null
companion object {
@JvmStatic
fun registerWith(registrar: Registrar) {
val channel = MethodChannel(registrar.messenger(), "com.apptreesoftware.barcode_scan")
val plugin = BarcodeScanPlugin(registrar)
channel.setMethodCallHandler(plugin)
registrar.addActivityResultListener(plugin)
}
}
}
}
override fun onMethodCall(call: MethodCall, result: Result): Unit {
if (call.method.equals("scan")) {
this.result = result
showBarcodeView()
} else {
result.notImplemented()
override fun onMethodCall(call: MethodCall, result: Result) {
if (call.method == "scan") {
this.result = result
showBarcodeView()
} else {
result.notImplemented()
}
}
}
private fun showBarcodeView() {
val intent = Intent(activity, BarcodeScannerActivity::class.java)
activity.startActivityForResult(intent, 100)
}
override fun onActivityResult(code: Int, resultCode: Int, data: Intent?): Boolean {
if (code == 100) {
if (resultCode == Activity.RESULT_OK) {
val barcode = data?.getStringExtra("SCAN_RESULT")
barcode?.let { this.result?.success(barcode) }
} else {
val errorCode = data?.getStringExtra("ERROR_CODE")
this.result?.error(errorCode, null, null)
}
return true
private fun showBarcodeView() {
if (registrar.activity() == null) {
Log.e("BarcodeScanPlugin", "plugin can't launch scan activity, because plugin is not attached to any activity.")
return
}
val intent = Intent(registrar.activity(), BarcodeScannerActivity::class.java)
registrar.activity().startActivityForResult(intent, 100)
}
override fun onActivityResult(code: Int, resultCode: Int, data: Intent?): Boolean {
if (code == 100) {
if (resultCode == Activity.RESULT_OK) {
val barcode = data?.getStringExtra("SCAN_RESULT")
barcode?.let { this.result?.success(barcode) }
} else {
val errorCode = data?.getStringExtra("ERROR_CODE")
this.result?.error(errorCode, null, null)
}
return true
}
return false
}
return false
}
}