신뢰할 수 있는 웹 활동에서 Play 결제 사용

dependencies {
    ...
    implementation 'com.google.androidbrowserhelper:androidbrowserhelper:2.1.0'
    implementation 'com.google.androidbrowserhelper:billing:1.0.0-alpha05'
}

package com.example.yourapp;

import com.google.androidbrowserhelper.playbilling.digitalgoods.DigitalGoodsRequestHandler;
import com.google.androidbrowserhelper.trusted.DelegationService;

public class DelegationService
        extends com.google.androidbrowserhelper.trusted.DelegationService {
    @Override
    public void onCreate() {
        super.onCreate();
        registerExtraCommandHandler(new DigitalGoodsRequestHandler(getApplicationContext()));
    }
}

<service
    android:name=".DelegationService"
    android:exported="true">

    <intent-filter>
        <action android:name="android.support.customtabs.trusted.TRUSTED_WEB_ACTIVITY_SERVICE"/>
        <category android:name="android.intent.category.DEFAULT"/>
    </intent-filter>
</service>

<activity
    android:name="com.google.androidbrowserhelper.playbilling.provider.PaymentActivity"
    android:theme="@android:style/Theme.Translucent.NoTitleBar"
    android:configChanges="keyboardHidden|keyboard|orientation|screenLayout|screenSize"
    android:exported="true">
    <intent-filter>
        <action android:name="org.chromium.intent.action.PAY" />
    </intent-filter>
    <meta-data
        android:name="org.chromium.default_payment_method_name"
        android:value="https://play.google.com/billing" />
</activity>
<!-- This service checks who calls it at runtime. -->
<service
    android:name="com.google.androidbrowserhelper.playbilling.provider.PaymentService"
    android:exported="true" >
    <intent-filter>
        <action android:name="org.chromium.intent.action.IS_READY_TO_PAY" />
    </intent-filter>
</service>