Change up arrow behaviour

Author: MarkNjunge

justjavastaff/src/main/java/com/marknkamau/justjavastaff/ui/orderdetails/OrderDetailsActivity.kt

@@ -5,6 +5,7 @@ import android.net.Uri
 import android.os.Bundle
 import android.support.v7.app.AlertDialog
 import android.support.v7.widget.LinearLayoutManager
+import android.view.MenuItem
 import android.view.View
 import android.widget.LinearLayout
 import android.widget.Toast
@@ -71,6 +72,15 @@ class OrderDetailsActivity : BaseActivity(), OrderDetailsView {
         }
     }
 
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        return if (item.itemId == android.R.id.home) {
+            finish()
+            true
+        } else {
+            super.onOptionsItemSelected(item)
+        }
+    }
+
     override fun displayMessage(message: String) {
         Toast.makeText(this, message, Toast.LENGTH_SHORT).show()
     }