add webviewassetloader & local file

NiklasMerz · NiklasMerz · commit 0a91c50dad66 · 2025-02-04T18:55:22.000+01:00
diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
@@ -48,6 +48,7 @@ dependencies {
     implementation(libs.androidx.lifecycle.viewmodel.ktx)
     implementation(libs.androidx.navigation.fragment.ktx)
     implementation(libs.androidx.navigation.ui.ktx)
+    implementation(libs.androidx.webkit)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
diff --git a/app/src/main/assets/html/index.html b/app/src/main/assets/html/index.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CanIWebView</title>
+</head>
+<body>
+    <h1>CanIWebView Test App</h1>
+    <p>This is a file served in the app by
+        <a href="https://developer.android.com/develop/ui/views/layout/webapps/load-local-content">
+            WebViewAssetLoader
+        </a>
+    </p>
+
+
+    <b>
+        <a href="https://caniwebview.com/app">Check out caniwebview.com</a>
+    </b>
+</body>
diff --git a/app/src/main/java/com/caniwebview/android/ui/webview/WebViewFragment.kt b/app/src/main/java/com/caniwebview/android/ui/webview/WebViewFragment.kt
@@ -7,12 +7,15 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.webkit.WebResourceRequest
+import android.webkit.WebResourceResponse
 import android.webkit.WebSettings
 import android.webkit.WebView
-import android.webkit.WebViewClient
 import android.widget.Button
 import android.widget.EditText
 import androidx.fragment.app.Fragment
+import androidx.webkit.WebViewAssetLoader
+import androidx.webkit.WebViewClientCompat
 import com.caniwebview.android.databinding.FragmentWebviewBinding
 
 class WebViewFragment : Fragment() {
@@ -38,10 +41,27 @@ class WebViewFragment : Fragment() {
         val urlEditText: EditText = binding.urlEditText
         val loadButton: Button = binding.loadButton
 
-        webView.webViewClient = WebViewClient()
+        // Create the asset loader
+        // Create the asset loader with a custom domain
+        val assetLoader = WebViewAssetLoader.Builder()
+            .setDomain("caniwebview.local") // Set your custom domain here
+            .setHttpAllowed(false) // Enforce HTTPS (recommended)
+            .addPathHandler("/assets/", WebViewAssetLoader.AssetsPathHandler(requireContext()))
+            .build()
+
+
+        // Set the WebViewClient
+        webView.webViewClient = object : WebViewClientCompat() {
+            override fun shouldInterceptRequest(
+                view: WebView,
+                request: WebResourceRequest
+            ): WebResourceResponse? {
+                return assetLoader.shouldInterceptRequest(request.url)
+            }
+        }
 
         // Load url in field if saved
-        val savedUrl = sharedPreferences.getString("url", "https://caniwebview.com/app")
+        val savedUrl = sharedPreferences.getString("url", "https://caniwebview.local/assets/html/index.html")
         if (savedUrl != null) {
             urlEditText.setText(savedUrl)
             webView.loadUrl(savedUrl)
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -12,6 +12,7 @@ lifecycleLivedataKtx = "2.6.1"
 lifecycleViewmodelKtx = "2.6.1"
 navigationFragmentKtx = "2.6.0"
 navigationUiKtx = "2.6.0"
+webkit = "1.12.1"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -25,6 +26,7 @@ androidx-lifecycle-livedata-ktx = { group = "androidx.lifecycle", name = "lifecy
 androidx-lifecycle-viewmodel-ktx = { group = "androidx.lifecycle", name = "lifecycle-viewmodel-ktx", version.ref = "lifecycleViewmodelKtx" }
 androidx-navigation-fragment-ktx = { group = "androidx.navigation", name = "navigation-fragment-ktx", version.ref = "navigationFragmentKtx" }
 androidx-navigation-ui-ktx = { group = "androidx.navigation", name = "navigation-ui-ktx", version.ref = "navigationUiKtx" }
+androidx-webkit = { group = "androidx.webkit", name = "webkit", version.ref = "webkit" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
