Optimiser le comportement en cas de clic sur une WebView
Restez organisé à l'aide des collections
Enregistrez et classez les contenus selon vos préférences.
Si votre application utilise WebView
pour afficher du contenu Web, vous pouvez envisager d'optimiser le comportement des clics pour les raisons suivantes :
-
WebView
n'est pas compatible avec la navigation par onglets.
Lorsque vous cliquez sur un lien, le contenu s'ouvre dans le navigateur Web par défaut.
WebView
n'est pas compatible avec les schémas d'URL personnalisés qui peuvent être renvoyés dans les annonces si la destination du clic est une application distincte. Par exemple, une URL de suivi des clics Google Play peut utiliser market://
.
Ce guide fournit des étapes recommandées pour optimiser le comportement des clics dans les vues Web mobiles tout en préservant le contenu de la vue Web.
Prérequis
Implémentation
Pour optimiser le comportement des clics dans votre instance WebView
:
Remplacez shouldOverrideUrlLoading()
sur WebViewClient
.
Cette méthode est appelée lorsqu'une URL est sur le point d'être chargée dans le WebView
actuel.
Déterminez si vous souhaitez remplacer le comportement de l'URL de clic.
L'exemple de code vérifie si le domaine actuel est différent du domaine cible. Il ne s'agit que d'une approche parmi d'autres, car les critères que vous utilisez peuvent varier.
Décidez si l'URL doit s'ouvrir dans un navigateur externe, dans Android Custom Tabs ou dans la vue Web existante. Ce guide explique comment ouvrir des URL en quittant le site à l'aide des onglets personnalisés Android.
Exemple de code
Commencez par ajouter la dépendance androidx.browser
à votre fichier build.gradle
au niveau du module, généralement app/build.gradle
. Voici ce qui est requis pour les onglets personnalisés :
dependencies {
implementation 'androidx.browser:browser:1.5.0'
}
L'extrait de code suivant montre comment implémenter shouldOverrideUrlLoading()
:
Java
public class MainActivity extends AppCompatActivity {
private WebView webView;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// ... Register the WebView.
webView = new WebView(this);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webView.setWebViewClient(
new WebViewClient() {
// 1. Implement the web view click handler.
@Override
public boolean shouldOverrideUrlLoading(
WebView view,
WebResourceRequest request) {
// 2. Determine whether to override the behavior of the URL.
// If the target URL has no host and no scheme, return early.
if (request.getUrl().getHost() == null && request.getUrl().getScheme() == null) {
return false;
}
// Handle custom URL schemes such as market:// by attempting to
// launch the corresponding application in a new intent.
if (!request.getUrl().getScheme().equals("http")
&& !request.getUrl().getScheme().equals("https")) {
Intent intent = new Intent(Intent.ACTION_VIEW, request.getUrl());
// If the URL cannot be opened, return early.
try {
MainActivity.this.startActivity(intent);
} catch (ActivityNotFoundException exception) {
Log.d("TAG", "Failed to load URL with scheme:" + request.getUrl().getScheme());
}
return true;
}
String currentDomain;
// If the current URL's host cannot be found, return early.
try {
currentDomain = new URI(view.getUrl()).toURL().getHost();
} catch (URISyntaxException | MalformedURLException exception) {
// Malformed URL.
return false;
}
String targetDomain = request.getUrl().getHost();
// If the current domain equals the target domain, the
// assumption is the user is not navigating away from
// the site. Reload the URL within the existing web view.
if (currentDomain.equals(targetDomain)) {
return false;
}
// 3. User is navigating away from the site, open the URL in
// Custom Tabs to preserve the state of the web view.
CustomTabsIntent intent = new CustomTabsIntent.Builder().build();
intent.launchUrl(MainActivity.this, request.getUrl());
return true;
}
});
}
}
Kotlin
class MainActivity : AppCompatActivity() {
private lateinit var webView: WebView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// ... Register the WebView.
webView.webViewClient = object : WebViewClient() {
// 1. Implement the web view click handler.
override fun shouldOverrideUrlLoading(
view: WebView?,
request: WebResourceRequest?
): Boolean {
// 2. Determine whether to override the behavior of the URL.
// If the target URL has no host and no scheme, return early.
if (request?.url?.host == null && request.url.scheme == null) {
return false
}
val currentDomain = URI(view?.url).toURL().host
// Handle custom URL schemes such as market:// by attempting to
// launch the corresponding application in a new intent.
if (!request.url.scheme.equals("http") &&
!request.url.scheme.equals("https")) {
val intent = Intent(Intent.ACTION_VIEW, request.url)
// If the URL cannot be opened, return early.
try {
this@MainActivity.startActivity(intent)
} catch (exception: ActivityNotFoundException) {
Log.d("TAG", "Failed to load URL with scheme: ${request.url.scheme}")
}
return true
}
val targetDomain = request.url.host
// If the current domain equals the target domain, the
// assumption is the user is not navigating away from
// the site. Reload the URL within the existing web view.
if (currentDomain.equals(targetDomain)) {
return false
}
// 3. User is navigating away from the site, open the URL in
// Custom Tabs to preserve the state of the web view.
val customTabsIntent = CustomTabsIntent.Builder().build()
customTabsIntent.launchUrl(this@MainActivity, request.url)
return true
}
}
}
}
Tester la navigation sur vos pages
Pour tester les modifications apportées à la navigation sur votre page, chargez
https://google.github.io/webview-ads/test/#click-behavior-tests
dans votre vue Web. Cliquez sur chacun des types de liens pour voir comment ils se comportent dans votre application.
Voici quelques points à vérifier :
- Chaque lien ouvre l'URL prévue.
- Lorsque vous revenez à l'application, le compteur de la page de test ne revient pas à zéro pour valider que l'état de la page a été conservé.
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/08/31 (UTC).
[null,null,["Dernière mise à jour le 2025/08/31 (UTC)."],[[["\u003cp\u003eAndroid \u003ccode\u003eWebView\u003c/code\u003e has limitations with click behavior, like opening links in external browsers instead of within the app.\u003c/p\u003e\n"],["\u003cp\u003eThis guide provides steps to optimize click behavior by overriding \u003ccode\u003eshouldOverrideUrlLoading()\u003c/code\u003e in your \u003ccode\u003eWebViewClient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eYou can customize link handling to open links in external browsers, Custom Tabs, or within the \u003ccode\u003eWebView\u003c/code\u003e itself based on criteria like the target domain.\u003c/p\u003e\n"],["\u003cp\u003eThe guide includes code examples in Java and Kotlin to demonstrate how to implement this optimized click handling.\u003c/p\u003e\n"],["\u003cp\u003eBy implementing these steps, you improve user experience and maintain the state of your web view content.\u003c/p\u003e\n"]]],["When using `WebView` to display web content, optimize click behavior by overriding `shouldOverrideUrlLoading()` in `WebViewClient`. Determine if a click URL's behavior should be overridden, considering factors like different domains or custom URL schemes. If needed, open the URL in an external browser or via Android Custom Tabs to preserve the web view state, as opposed to the default browser. The guide includes example Java and Kotlin code snippets, and steps to test page navigation.\n"],null,["# Optimize WebView click behavior\n\nIf your app utilizes\n[`WebView`](//developer.android.com/reference/android/webkit/WebView) to display web content, you might want\nto consider optimizing click behavior for the following reasons:\n\n- [`WebView`](//developer.android.com/reference/android/webkit/WebView) doesn't support [tabbed browsing](//developer.android.com/develop/ui/views/layout/webapps/webview#HandlingNavigation). Clicking a link opens the content in the default web browser.\n\n\u003c!-- --\u003e\n\n- `WebView` doesn't support [custom URL schemes](//developer.android.com/develop/ui/views/layout/webapps/webview#custom-urls) which could be returned in ads if the click destination is to a separate app. For example, a Google Play click-through URL might use `market://`.\n\n\n- [Google Sign-in](//developers.googleblog.com/2021/06/upcoming-security-changes-to-googles-oauth-2.0-authorization-endpoint.html) and [Facebook Sign-in](//developers.facebook.com/docs/facebook-login/android/deprecating-webviews#deprecating-facebook-login-support-on-android-webviews) aren't supported in `WebView`.\n\nThis guide provides recommended steps to optimize the click behavior in mobile\nweb views while preserving the web view content.\n\nPrerequisites\n-------------\n\n- Complete the [Set up the web view](/admob/android/browser/webview) guide.\n\nImplementation\n--------------\n\nFollow these steps to optimize the click behavior in your `WebView`\ninstance:\n\n1. Override [`shouldOverrideUrlLoading()`](//developer.android.com/reference/android/webkit/WebViewClient#shouldOverrideUrlLoading(android.webkit.WebView,%20android.webkit.WebResourceRequest))\n on the [`WebViewClient`](//developer.android.com/reference/kotlin/android/webkit/WebViewClient).\n This method is called when a URL is about to be loaded in the current\n `WebView`.\n\n2. Determine whether to override the behavior of the click URL.\n\n The [code example](#code_example) checks if the current domain is different\n than the target domain. This is just one approach as the criteria you use\n could vary.\n3. Decide whether to open the URL in an external browser, [Android Custom\n Tabs](//developer.chrome.com/docs/android/custom-tabs/), or within the\n existing web view. This guide shows how to open URLs navigating away from\n the site by launching Android Custom Tabs.\n\n\nCode example\n------------\n\nFirst add the `androidx.browser` dependency to your module-level `build.gradle`\nfile, typically `app/build.gradle`. This is required for Custom Tabs: \n\n dependencies {\n implementation 'androidx.browser:browser:1.5.0'\n }\n\nThe following code snippet shows how to implement `shouldOverrideUrlLoading()`: \n\n### Java\n\n public class MainActivity extends AppCompatActivity {\n\n private WebView webView;\n\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n\n // ... Register the WebView.\n\n webView = new WebView(this);\n WebSettings webSettings = webView.getSettings();\n webSettings.setJavaScriptEnabled(true);\n webView.setWebViewClient(\n new WebViewClient() {\n // 1. Implement the web view click handler.\n @Override\n public boolean shouldOverrideUrlLoading(\n WebView view,\n WebResourceRequest request) {\n // 2. Determine whether to override the behavior of the URL.\n // If the target URL has no host and no scheme, return early.\n if (request.getUrl().getHost() == null && request.getUrl().getScheme() == null) {\n return false;\n }\n\n // Handle custom URL schemes such as market:// by attempting to\n // launch the corresponding application in a new intent.\n if (!request.getUrl().getScheme().equals(\"http\")\n && !request.getUrl().getScheme().equals(\"https\")) {\n Intent intent = new Intent(Intent.ACTION_VIEW, request.getUrl());\n // If the URL cannot be opened, return early.\n try {\n MainActivity.this.startActivity(intent);\n } catch (ActivityNotFoundException exception) {\n Log.d(\"TAG\", \"Failed to load URL with scheme:\" + request.getUrl().getScheme());\n }\n return true;\n }\n\n String currentDomain;\n // If the current URL's host cannot be found, return early.\n try {\n currentDomain = new URI(view.getUrl()).toURL().getHost();\n } catch (URISyntaxException | MalformedURLException exception) {\n // Malformed URL.\n return false;\n }\n String targetDomain = request.getUrl().getHost();\n\n // If the current domain equals the target domain, the\n // assumption is the user is not navigating away from\n // the site. Reload the URL within the existing web view.\n if (currentDomain.equals(targetDomain)) {\n return false;\n }\n\n // 3. User is navigating away from the site, open the URL in\n // Custom Tabs to preserve the state of the web view.\n CustomTabsIntent intent = new CustomTabsIntent.Builder().build();\n intent.launchUrl(MainActivity.this, request.getUrl());\n return true;\n }\n });\n }\n }\n\n### Kotlin\n\n class MainActivity : AppCompatActivity() {\n\n private lateinit var webView: WebView\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n\n // ... Register the WebView.\n\n webView.webViewClient = object : WebViewClient() {\n // 1. Implement the web view click handler.\n override fun shouldOverrideUrlLoading(\n view: WebView?,\n request: WebResourceRequest?\n ): Boolean {\n // 2. Determine whether to override the behavior of the URL.\n // If the target URL has no host and no scheme, return early.\n if (request?.url?.host == null && request.url.scheme == null) {\n return false\n }\n val currentDomain = URI(view?.url).toURL().host\n\n // Handle custom URL schemes such as market:// by attempting to\n // launch the corresponding application in a new intent.\n if (!request.url.scheme.equals(\"http\") &&\n !request.url.scheme.equals(\"https\")) {\n val intent = Intent(Intent.ACTION_VIEW, request.url)\n // If the URL cannot be opened, return early.\n try {\n this@MainActivity.startActivity(intent)\n } catch (exception: ActivityNotFoundException) {\n Log.d(\"TAG\", \"Failed to load URL with scheme: ${request.url.scheme}\")\n }\n return true\n }\n\n val targetDomain = request.url.host\n\n // If the current domain equals the target domain, the\n // assumption is the user is not navigating away from\n // the site. Reload the URL within the existing web view.\n if (currentDomain.equals(targetDomain)) {\n return false\n }\n\n // 3. User is navigating away from the site, open the URL in\n // Custom Tabs to preserve the state of the web view.\n val customTabsIntent = CustomTabsIntent.Builder().build()\n customTabsIntent.launchUrl(this@MainActivity, request.url)\n return true\n }\n }\n }\n }\n\n### Test your page navigation\n\nTo test your page navigation changes, load \n\n https://google.github.io/webview-ads/test#click-behavior-tests\n\ninto your web view. Click each of the different link types to see how they\nbehave in your app.\n\nHere are some things to check:\n\n- Each link opens the intended URL.\n- When returning to the app, the test page's counter doesn't reset to zero to validate the page state was preserved."]]