Le API WebView per gli annunci rendono disponibili gli indicatori delle app per i tag in CustomTabSession
, contribuendo a migliorare la monetizzazione per i publisher web che hanno fornito i contenuti e a proteggere gli inserzionisti dallo spam.
Come funziona
La comunicazione con l'SDK Google Mobile Ads avviene solo in risposta a eventi correlati agli annunci attivati da uno dei seguenti elementi:
L'SDK Google Mobile Ads semplifica la comunicazione aprendo un canale postMessage con il CustomTabsSession
fornito dal framework Android.
Prerequisiti
- SDK Google Mobile Ads 23.0.0 o versioni successive.
- Un'implementazione esistente di schede personalizzate di Chrome nella tua app mobile. Consulta Preparazione e pre-recupero: utilizzo del servizio Schede personalizzate.
- Associa la tua app mobile a un sito web con Digital Asset Links.
Aggiungi il seguente tag
<meta-data>
al fileAndroidManifest.xml
peraggirare il controllo delAPPLICATION_ID
. Se salti questo passaggio e non fornisci il tag<meta-data>
, l'SDK Google Mobile Ads genera un messaggio di erroreIllegalStateException
all'avvio dell'app.<!-- Bypass APPLICATION_ID check for web view APIs for ads --> <meta-data android:name="com.google.android.gms.ads.INTEGRATION_MANAGER" android:value="webview"/>
Implementazione
Nell'implementazione delle schede personalizzate di Chrome, modifica il codice nel callback
onCustomTabsServiceConnected()
. Sostituisci newSession()
con MobileAds.registerCustomTabsSession()
. Viene stabilita una connessione con il canale postMessage per arricchire i tag annuncio con gli indicatori SDK. Per collegare il canale postMessage è necessario un link a un asset digitale. Se vuoi, puoi impostare il parametro
CustomTabsCallback
per ascoltare gli eventi di Chrome Custom Tab.
Dovresti comunque essere in grado di inviare messaggi dall'CustomTabsSession
ricevuto
dall'SDK Google Mobile Ads, ma la porta potrebbe cambiare quando l'SDK richiede
un nuovo canale che sostituisce quello esistente.
Il seguente snippet di codice mostra come registrare un CustomTabsSession
utilizzando l'SDK Google Mobile Ads:
Kotlin
import com.google.android.gms.ads.MobileAds
class MainActivity : ComponentActivity() {
private var customTabsClient: CustomTabsClient? = null
private var customTabsSession: CustomTabsSession? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// Get the default browser package name, this will be null if
// the default browser does not provide a CustomTabsService.
val packageName = CustomTabsClient.getPackageName(applicationContext, null);
if (packageName == null) {
// Do nothing as service connection is not supported.
return
}
CustomTabsClient.bindCustomTabsService(
applicationContext,
packageName,
object : CustomTabsServiceConnection() {
override fun onCustomTabsServiceConnected(
name: ComponentName, client: CustomTabsClient,
) {
customTabsClient = client
// Warm up the browser process.
customTabsClient?.warmup(0L)
// Create a new browser session using the Google Mobile Ads SDK.
customTabsSession = MobileAds.registerCustomTabsSession(
this@MainActivity.applicationContext,
client,
// Checks the "Digital Asset Link" to connect the postMessage channel.
ORIGIN,
// Optional parameter to receive the delegated callbacks.
customTabsCallback
)
// Create a new browser session if the Google Mobile Ads SDK is
// unable to create one.
if (customTabsSession == null) {
customTabsSession = client.newSession(customTabsCallback)
}
// Pass the custom tabs session into the intent.
val customTabsIntent = CustomTabsIntent.Builder(customTabsSession).build()
customTabsIntent.launchUrl(this@MainActivity,
Uri.parse("YOUR_URL"))
}
override fun onServiceDisconnected(componentName: ComponentName) {
// Remove the custom tabs client and custom tabs session.
customTabsClient = null
customTabsSession = null
}
})
}
// Listen for events from the CustomTabsSession delegated by the Google Mobile Ads SDK.
private val customTabsCallback: CustomTabsCallback = object : CustomTabsCallback() {
@Synchronized
override fun onNavigationEvent(navigationEvent: Int, extras: Bundle?) {
// Called when a navigation event happens.
}
@Synchronized
override fun onMessageChannelReady(extras: Bundle?) {
// Called when the channel is ready for sending and receiving messages on both
// ends.
// This frequently happens, such as each time the SDK requests a
// new channel.
}
@Synchronized
override fun onPostMessage(message: String, extras: Bundle?) {
// Called when a tab controlled by this CustomTabsSession has sent a postMessage.
}
override fun onRelationshipValidationResult(
relation: Int, requestedOrigin: Uri, result: Boolean, extras: Bundle?
) {
// Called when a relationship validation result is available.
}
override fun onActivityResized(height: Int, width: Int, extras: Bundle) {
// Called when the tab is resized.
}
override fun extraCallback(callbackName: String, args: Bundle?) {
}
override fun extraCallbackWithResult(callbackName: String, args: Bundle?): Bundle? {
return null
}
}
companion object {
// Replace this URL with an associated website.
const val ORIGIN = "https://www.google.com"
}
}
Java
import com.google.android.gms.ads.MobileAds;
class MainActivity extends ComponentActivity {
// Replace this URL with an associated website.
private static final String ORIGIN = "https://www.google.com";
private CustomTabsClient customTabsClient;
private CustomTabsSession customTabsSession;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the default browser package name, this will be null if
// the default browser does not provide a CustomTabsService.
String packageName = CustomTabsClient.getPackageName(getApplicationContext(), null);
if (packageName == null) {
// Do nothing as service connection is not supported.
return;
}
CustomTabsClient.bindCustomTabsService(
getApplicationContext(),
packageName,
new CustomTabsServiceConnection() {
@Override
public void onCustomTabsServiceConnected(@NonNull ComponentName name,
@NonNull CustomTabsClient client) {
customTabsClient = client;
// Warm up the browser process.
customTabsClient.warmup(0);
// Create a new browser session using the Google Mobile Ads SDK.
customTabsSession = MobileAds.registerCustomTabsSession(
MainActivity.this.getApplicationContext(),
client,
// Checks the "Digital Asset Link" to connect the postMessage channel.
ORIGIN,
// Optional parameter to receive the delegated callbacks.
customTabsCallback);
// Create a new browser session if the Google Mobile Ads SDK is
// unable to create one.
if (customTabsSession == null) {
customTabsSession = client.newSession(customTabsCallback);
}
// Pass the custom tabs session into the intent.
CustomTabsIntent intent = new CustomTabsIntent.Builder(customTabsSession).build();
intent.launchUrl(MainActivity.this, Uri.parse("YOUR_URL"));
}
@Override
public void onServiceDisconnected(ComponentName componentName) {
// Remove the custom tabs client and custom tabs session.
customTabsClient = null;
customTabsSession = null;
}
}
);
}
// Listen for events from the CustomTabsSession delegated by the Google Mobile Ads SDK.
private final CustomTabsCallback customTabsCallback = new CustomTabsCallback() {
@Override
public void onNavigationEvent(int navigationEvent, @Nullable Bundle extras) {
// Called when a navigation event happens.
super.onNavigationEvent(navigationEvent, extras);
}
@Override
public void onMessageChannelReady(@Nullable Bundle extras) {
// Called when the channel is ready for sending and receiving messages on both
// ends.
// This frequently happens, such as each time the SDK requests a
// new channel.
super.onMessageChannelReady(extras);
}
@Override
public void onPostMessage(@NonNull String message, @Nullable Bundle extras) {
// Called when a tab controlled by this CustomTabsSession has sent a postMessage.
super.onPostMessage(message, extras);
}
@Override
public void onRelationshipValidationResult(int relation, @NonNull Uri requestedOrigin,
boolean result, @Nullable Bundle extras) {
// Called when a relationship validation result is available.
super.onRelationshipValidationResult(relation, requestedOrigin, result, extras);
}
@Override
public void onActivityResized(int height, int width, @NonNull Bundle extras) {
// Called when the tab is resized.
super.onActivityResized(height, width, extras);
}
@Override
public void extraCallback(@NonNull String callbackName, @Nullable Bundle args) {
super.extraCallback(callbackName, args);
}
@Nullable
@Override
public Bundle extraCallbackWithResult(@NonNull String callbackName, @Nullable Bundle args) {
return super.extraCallbackWithResult(callbackName, args);
}
};
}