💡 Notic: Only works on real Device | the codes dosen't works on simulator for both platform
Add this to MainActivity in android/app/src/main/kotlin/com/PackegeName/ProjectName
package com.example.test // replace your packageName
import android.view.WindowManager.LayoutParams
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.engine.FlutterEngine
class MainActivity: FlutterActivity() {
override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
window.addFlags(LayoutParams.FLAG_SECURE)
super.configureFlutterEngine(flutterEngine)
}
}Add this to AppDelegate in ios/Runner/AppDelegate.swift
import UIKit
import Flutter
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
self.window.makeSecure() // + add this line
GeneratedPluginRegistrant.register(with: self)
return super.application(application, didFinishLaunchingWithOptions: launchOptions)
}
}
// + add this section
extension UIWindow {
func makeSecure() {
let field = UITextField()
field.isSecureTextEntry = true
self.addSubview(field)
field.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
field.centerXAnchor.constraint(equalTo: self.centerXAnchor).isActive = true
self.layer.superlayer?.addSublayer(field.layer)
field.layer.sublayers?.first?.addSublayer(self.layer)
}
}