Fix returning result for SCAN intents

Set parameter for `com.google.zxing.client.android.SCAN`
intents so the result is returned instead of displayed.

app/src/main/kotlin/de/markusfisch/android/binaryeye/activity/CameraActivity.kt

@@ -39,7 +39,6 @@ class CameraActivity : AppCompatActivity() {
 	private var preprocessor: Preprocessor? = null
 	private var invert = false
 	private var flash = false
-	private var returnResult = false
 	private var frontFacing = false
 	private var fallbackBuffer: IntArray? = null
 
@@ -114,7 +113,6 @@ class CameraActivity : AppCompatActivity() {
 	override fun onResume() {
 		super.onResume()
 		System.gc()
-		returnResult = "com.google.zxing.client.android.SCAN" == intent.action
 		if (hasCameraPermission(this, REQUEST_CAMERA)) {
 			openCamera()
 		}

app/src/main/kotlin/de/markusfisch/android/binaryeye/activity/PickActivity.kt

@@ -25,6 +25,8 @@ class PickActivity : AppCompatActivity() {
 
 	private lateinit var cropImageView: CropImageView
 
+	private var returnResult = false
+
 	override fun onCreate(state: Bundle?) {
 		super.onCreate(state)
 		setContentView(R.layout.activity_pick)
@@ -37,6 +39,8 @@ class PickActivity : AppCompatActivity() {
 			setSystemAndToolBarTransparency(this@PickActivity)
 		}
 
+		returnResult = intent?.action == "com.google.zxing.client.android.SCAN"
+
 		val bitmap = if (
 			intent?.action == Intent.ACTION_SEND &&
 			intent.type?.startsWith("image/") == true
@@ -119,7 +123,7 @@ class PickActivity : AppCompatActivity() {
 	private fun scanImage(bitmap: Bitmap) {
 		val result = zxing.decodePositiveNegative(bitmap)
 		if (result != null) {
-			showResult(this, result)
+			showResult(this, result, returnResult)
 			finish()
 			return
 		}