Update coinjoin.swift

ios/app/coinjoin.swift

@@ -1 +1,27 @@
+import UIKit
+import CoinjoinTS
+
+class ViewController: UIViewController {
+    let coinjoinService = CoinjoinService()
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        DispatchQueue.global().async {
+            let transactions = self.coinjoinService.getCoinjoinTransactions()
+            // Update UI with transactions on the main thread
+            DispatchQueue.main.async {
+                // Update UI
+            }
+        }
+
+        createTransactionButton.addTarget(self, action: #selector(createTransaction), for: .touchUpInside)
+    }
+
+    @objc func createTransaction() {
+        DispatchQueue.global().async {
+            self.coinjoinService.createCoinjoinTransaction(amount: 0.1) // Example amount
+        }
+    }
+}