从Bubblewrap生成的TWA中获取CustomTabsSession

Question

我使用Bubblewrap创建了一个TWA，应用程序运行正常。现在我需要发送一个WebMessage，这可以通过CustomTabs完成，根据文档，但我不知道如何从这些类中获得活动CustomTabsSession对象来使用它

AndroidManifest.xml:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myapplication.twa">
<application
android:name="Application"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/appName"
android:manageSpaceActivity="com.google.androidbrowserhelper.trusted.ManageDataLauncherActivity"
android:supportsRtl="true"
android:theme="@android:style/Theme.Translucent.NoTitleBar">
<meta-data
android:name="asset_statements"
android:resource="@string/assetStatements" />

<meta-data
android:name="web_manifest_url"
android:value="@string/webManifestUrl" />

<meta-data
android:name="twa_generator"
android:value="@string/generatorApp" />
<activity android:name="com.google.androidbrowserhelper.trusted.ManageDataLauncherActivity">
<meta-data
android:name="android.support.customtabs.trusted.MANAGE_SPACE_URL"
android:value="@string/launchUrl" />
</activity>

<activity android:name="LauncherActivity"
android:alwaysRetainTaskState="true"
android:label="@string/launcherName"
android:exported="true">
<meta-data android:name="android.support.customtabs.trusted.DEFAULT_URL"
android:value="@string/launchUrl" />
<meta-data
android:name="android.support.customtabs.trusted.STATUS_BAR_COLOR"
android:resource="@color/colorPrimary" />
<meta-data
android:name="android.support.customtabs.trusted.NAVIGATION_BAR_COLOR"
android:resource="@color/navigationColor" />
<meta-data
android:name="android.support.customtabs.trusted.NAVIGATION_BAR_COLOR_DARK"
android:resource="@color/navigationColorDark" />
<meta-data
android:name="androix.browser.trusted.NAVIGATION_BAR_DIVIDER_COLOR"
android:resource="@color/navigationDividerColor" />
<meta-data
android:name="androix.browser.trusted.NAVIGATION_BAR_DIVIDER_COLOR_DARK"
android:resource="@color/navigationDividerColorDark" />
<meta-data android:name="android.support.customtabs.trusted.SPLASH_IMAGE_DRAWABLE"
android:resource="@drawable/splash"/>
<meta-data android:name="android.support.customtabs.trusted.SPLASH_SCREEN_BACKGROUND_COLOR"
android:resource="@color/backgroundColor"/>
<meta-data android:name="android.support.customtabs.trusted.SPLASH_SCREEN_FADE_OUT_DURATION"
android:value="@integer/splashScreenFadeOutDuration"/>
<meta-data android:name="android.support.customtabs.trusted.FILE_PROVIDER_AUTHORITY"
android:value="@string/providerAuthority"/>
<meta-data android:name="android.app.shortcuts" android:resource="@xml/shortcuts" />
<meta-data android:name="android.support.customtabs.trusted.FALLBACK_STRATEGY"
android:value="@string/fallbackType" />


<meta-data android:name="android.support.customtabs.trusted.DISPLAY_MODE"
android:value="immersive" />

<meta-data android:name="android.support.customtabs.trusted.SCREEN_ORIENTATION"
android:value="@string/orientation"/>


<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter android:autoVerify="true">
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE"/>
<data android:scheme="https"
android:host="@string/hostName"/>
</intent-filter>

</activity>
<activity android:name="com.google.androidbrowserhelper.trusted.FocusActivity" />
<activity android:name="com.google.androidbrowserhelper.trusted.WebViewFallbackActivity"
android:configChanges="orientation|screenSize" />
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="@string/providerAuthority"
android:grantUriPermissions="true"
android:exported="false">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/filepaths" />
</provider>
<service
android:name=".DelegationService"
android:enabled="@bool/enableNotification"
android:exported="@bool/enableNotification">

<meta-data
android:name="android.support.customtabs.trusted.SMALL_ICON"
android:resource="@drawable/ic_notification_icon" />

<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.locationdelegation.PermissionRequestActivity"/>
</application>
</manifest>

LauncherActivity.java:

import android.content.pm.ActivityInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
public class LauncherActivity
extends com.google.androidbrowserhelper.trusted.LauncherActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.O) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
} else {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
}
}
@Override
protected Uri getLaunchingUrl() {
// Get the original launch Url.
Uri uri = super.getLaunchingUrl();
return uri;
}
}

Application.java:

public class Application extends android.app.Application {
@Override
public void onCreate() {
super.onCreate();
}
}

Answer 1

CustomTabsSession是在TwaLauncher中创建/管理的，来自android-browser-helper，但没有暴露-应该可以通过更改TwaLauncher来暴露它。不幸的是，这将不起作用，因为CustomTabs PostMessage API不能在可信Web活动中工作.