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avoid use Registrar.activity() beforr Flutter engine attached to any activity #1

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merged 1 commit into from
Dec 19, 2019
Merged

avoid use Registrar.activity() beforr Flutter engine attached to any activity #1

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73 changes: 38 additions & 35 deletions android/src/main/kotlin/com/apptreesoftware/barcodescan/BarcodeScanPlugin.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -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)
}
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
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
}
}