feat: implement cookie manager for persistent session

Author: mrepol742

app/src/main/java/com/mrepol742/webappp/WebViewScreen.kt

@@ -6,6 +6,7 @@ import android.content.Intent
 import android.os.Build
 import android.util.Log
 import android.view.ViewGroup
+import android.webkit.CookieManager
 import android.webkit.WebSettings
 import android.webkit.WebView
 import androidx.activity.compose.BackHandler
@@ -81,6 +82,10 @@ fun WebViewScreen(
                 scrollBarStyle = WebView.SCROLLBARS_INSIDE_OVERLAY
                 overScrollMode = WebView.OVER_SCROLL_NEVER
 
+                val cookieManager = CookieManager.getInstance()
+                cookieManager.setAcceptCookie(true);
+                cookieManager.setAcceptThirdPartyCookies( this, true)
+
                 val currentUA = settings.userAgentString
                 val safeAppName = appName.replace("\\s+".toRegex(), "")
                 settings.userAgentString = "$currentUA $safeAppName/$appVersion"
@@ -97,7 +102,8 @@ fun WebViewScreen(
                     context as Activity,
                     fileChooserLauncher,
                     locationPermissionLauncher,
-                    permissionsLauncher
+                    permissionsLauncher,
+                    cookieManager
                 )
                 webChromeClient = chromeClient
                 secureWebChromeClientState.value = chromeClient

app/src/main/java/com/mrepol742/webappp/client/SecureChromeClient.kt

@@ -8,6 +8,7 @@ import android.content.pm.PackageManager
 import android.net.Uri
 import android.view.View
 import android.view.ViewGroup
+import android.webkit.CookieManager
 import android.webkit.GeolocationPermissions
 import android.webkit.JsPromptResult
 import android.webkit.JsResult
@@ -23,7 +24,8 @@ class SecureChromeClient(
     private val activity: Activity,
     private val fileChooserLauncher: ActivityResultLauncher<Intent>,
     private val locationPermissionLauncher: ActivityResultLauncher<String>,
-    private val permissionsLauncher: ActivityResultLauncher<Array<String>>
+    private val permissionsLauncher: ActivityResultLauncher<Array<String>>,
+    private val cookieManager: CookieManager
 ) : WebChromeClient() {
 
     private var filePathCallback: ValueCallback<Array<Uri>>? = null
@@ -32,6 +34,10 @@ class SecureChromeClient(
     private var fullScreenContainer: FrameLayout? = null
     private var pendingRequest: PermissionRequest? = null
 
+    override fun onProgressChanged(view: WebView?, newProgress: Int) {
+        cookieManager.flush();
+    }
+
     override fun onShowFileChooser(
         webView: WebView?,
         filePathCallback: ValueCallback<Array<Uri>>,