Replace app icon with Joykoo brand logo and improve WebView error handling

Use the Jk logo from smart.joykoo.mx as the launcher icon (legacy PNGs
and adaptive icon foreground at all densities). Add SSL/HTTP error
handling so failures show the error overlay instead of a silent white
screen. Add JS console logging to logcat and WebView debugging for
debug builds. Relax mixed content mode to compatibility.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/src/main/java/mx/joykoo/scanner/MainActivity.kt

@@ -9,16 +9,20 @@ import android.net.NetworkCapabilities
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
+import android.util.Log
 import android.view.MotionEvent
 import android.view.View
 import android.view.WindowInsets
 import android.view.WindowInsetsController
 import android.view.WindowManager
+import android.webkit.ConsoleMessage
 import android.webkit.CookieManager
+import android.webkit.SslErrorHandler
 import android.webkit.ValueCallback
 import android.webkit.WebChromeClient
 import android.webkit.WebResourceError
 import android.webkit.WebResourceRequest
+import android.webkit.WebResourceResponse
 import android.webkit.WebSettings
 import android.webkit.WebView
 import android.webkit.WebViewClient
@@ -98,9 +102,7 @@ class MainActivity : AppCompatActivity() {
             domStorageEnabled = true
             databaseEnabled = true
 
-            // Allow mixed content only if absolutely necessary for the target site.
-            // Default to the safest option.
-            mixedContentMode = WebSettings.MIXED_CONTENT_NEVER_ALLOW
+            mixedContentMode = WebSettings.MIXED_CONTENT_COMPATIBILITY_MODE
 
             // Cache and storage for session persistence
             cacheMode = WebSettings.LOAD_DEFAULT
@@ -129,6 +131,8 @@ class MainActivity : AppCompatActivity() {
             setAcceptThirdPartyCookies(webView, true)
         }
 
+        WebView.setWebContentsDebuggingEnabled(BuildConfig.DEBUG)
+
         webView.webViewClient = ScannerWebViewClient()
         webView.webChromeClient = ScannerWebChromeClient()
     }
@@ -315,21 +319,44 @@ class MainActivity : AppCompatActivity() {
             request: WebResourceRequest,
             error: WebResourceError
         ) {
-            // Only show error overlay for main-frame navigation failures
             if (request.isForMainFrame) {
+                Log.e(TAG, "WebView error: ${error.description} (${error.errorCode})")
                 showError()
             }
         }
 
-        // Do NOT override onReceivedSslError to proceed — let TLS
-        // errors fail as they should for security.
+        override fun onReceivedHttpError(
+            view: WebView,
+            request: WebResourceRequest,
+            errorResponse: WebResourceResponse
+        ) {
+            if (request.isForMainFrame) {
+                Log.e(TAG, "HTTP error ${errorResponse.statusCode} for ${request.url}")
+                showError()
+            }
+        }
+
+        override fun onReceivedSslError(
+            view: WebView,
+            handler: SslErrorHandler,
+            error: android.net.http.SslError
+        ) {
+            Log.e(TAG, "SSL error: ${error.primaryError} for ${error.url}")
+            handler.cancel()
+            showError()
+        }
     }
 
     // ── WebChromeClient ─────────────────────────────────────────────────
 
     private inner class ScannerWebChromeClient : WebChromeClient() {
 
-        // File upload support: <input type="file"> in the webpage
+        override fun onConsoleMessage(consoleMessage: ConsoleMessage): Boolean {
+            Log.d(TAG, "JS [${consoleMessage.messageLevel()}] ${consoleMessage.message()} " +
+                    "(${consoleMessage.sourceId()}:${consoleMessage.lineNumber()})")
+            return true
+        }
+
         override fun onShowFileChooser(
             webView: WebView,
             filePathCallback: ValueCallback<Array<Uri>>,
@@ -366,6 +393,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     companion object {
+        private const val TAG = "JoykooScanner"
         private const val FILE_CHOOSER_REQUEST = 1001
     }
 }

app/src/main/res/drawable/ic_launcher_background.xml

@@ -5,6 +5,6 @@
     android:viewportWidth="108"
     android:viewportHeight="108">
     <path
-        android:fillColor="#1565C0"
+        android:fillColor="#FFFFFF"
         android:pathData="M0,0h108v108h-108z" />
 </vector>

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <!-- QR code icon outline -->
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M30,30h18v18h-18z" />
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M60,30h18v18h-18z" />
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M30,60h18v18h-18z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M33,33h12v12h-12z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M63,33h12v12h-12z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M33,63h12v12h-12z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M36,36h6v6h-6z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M66,36h6v6h-6z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M36,66h6v6h-6z" />
-    <!-- Data dots -->
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M54,54h6v6h-6z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M60,60h6v6h-6z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M66,60h6v6h-6z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M54,66h6v6h-6z" />
-    <path
-        android:fillColor="#1A237E"
-        android:pathData="M72,66h6v6h-6z" />
-</vector>

app/src/main/res/drawable/ic_launcher_legacy.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/ic_launcher_background" />
-    <item android:drawable="@drawable/ic_launcher_foreground" />
-</layer-list>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
 </adaptive-icon>