android.support.customtabs.CustomTabsService Java Examples

private boolean preconnectUrls(List<Bundle> likelyBundles) {
    boolean atLeastOneUrl = false;
    if (likelyBundles == null) return false;
    WarmupManager warmupManager = WarmupManager.getInstance();
    Profile profile = Profile.getLastUsedProfile();
    for (Bundle bundle : likelyBundles) {
        Uri uri;
        try {
            uri = IntentUtils.safeGetParcelable(bundle, CustomTabsService.KEY_URL);
        } catch (ClassCastException e) {
            continue;
        }
        String url = checkAndConvertUri(uri);
        if (url != null) {
            warmupManager.maybePreconnectUrlAndSubResources(profile, url);
            atLeastOneUrl = true;
        }
    }
    return atLeastOneUrl;
}
 

/**
 * Relay a postMessage request through the current channel assigned to this session.
 * @param message The message to be sent.
 * @return The result of the postMessage request. Returning true means the request was accepted,
 *         not necessarily that the postMessage was successful.
 */
public int postMessage(final String message) {
    if (mChannel == null || !mChannel[0].isReady() || mChannel[0].isClosed()) {
        return CustomTabsService.RESULT_FAILURE_MESSAGING_ERROR;
    }
    ThreadUtils.postOnUiThread(new Runnable() {
        @Override
        public void run() {
            // It is still possible that the page has navigated while this task is in the queue.
            // If that happens fail gracefully.
            if (mChannel == null || mChannel[0].isClosed()) return;
            mChannel[0].postMessage(message, null);
        }
    });
    return CustomTabsService.RESULT_SUCCESS;
}
 

private boolean preconnectUrls(List<Bundle> likelyBundles) {
    boolean atLeastOneUrl = false;
    if (likelyBundles == null) return false;
    WarmupManager warmupManager = WarmupManager.getInstance();
    Profile profile = Profile.getLastUsedProfile();
    for (Bundle bundle : likelyBundles) {
        Uri uri;
        try {
            uri = IntentUtils.safeGetParcelable(bundle, CustomTabsService.KEY_URL);
        } catch (ClassCastException e) {
            continue;
        }
        String url = checkAndConvertUri(uri);
        if (url != null) {
            warmupManager.maybePreconnectUrlAndSubResources(profile, url);
            atLeastOneUrl = true;
        }
    }
    return atLeastOneUrl;
}
 

private boolean preconnectUrls(List<Bundle> likelyBundles) {
    boolean atLeastOneUrl = false;
    if (likelyBundles == null) return false;
    WarmupManager warmupManager = WarmupManager.getInstance();
    Profile profile = Profile.getLastUsedProfile();
    for (Bundle bundle : likelyBundles) {
        Uri uri;
        try {
            uri = IntentUtils.safeGetParcelable(bundle, CustomTabsService.KEY_URL);
        } catch (ClassCastException e) {
            continue;
        }
        String url = checkAndConvertUri(uri);
        if (url != null) {
            warmupManager.maybePreconnectUrlAndSubResources(profile, url);
            atLeastOneUrl = true;
        }
    }
    return atLeastOneUrl;
}
 

/**
 * Relay a postMessage request through the current channel assigned to this session.
 * @param message The message to be sent.
 * @return The result of the postMessage request. Returning true means the request was accepted,
 *         not necessarily that the postMessage was successful.
 */
public int postMessageFromClientApp(final String message) {
    if (mChannel == null || !mChannel[0].isReady() || mChannel[0].isClosed()) {
        return CustomTabsService.RESULT_FAILURE_MESSAGING_ERROR;
    }
    if (mWebContents == null || mWebContents.isDestroyed()) {
        return CustomTabsService.RESULT_FAILURE_MESSAGING_ERROR;
    }
    ThreadUtils.postOnUiThread(new Runnable() {
        @Override
        public void run() {
            // It is still possible that the page has navigated while this task is in the queue.
            // If that happens fail gracefully.
            if (mChannel == null || mChannel[0].isClosed()) return;
            mChannel[0].postMessage(message, null);
        }
    });
    return CustomTabsService.RESULT_SUCCESS;
}
 

/**
 * Ensures intents with {@link CustomTabsService#ACTION_CUSTOM_TABS_CONNECTION} resolve to a
 * Service with given categories
 */
public static void installCustomTabsService(String providerPackage, List<String> categories) {
    Intent intent = new Intent()
            .setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION)
            .setPackage(providerPackage);

    IntentFilter filter = new IntentFilter();
    for (String category : categories) {
        filter.addCategory(category);
    }
    ResolveInfo resolveInfo = new ResolveInfo();
    resolveInfo.filter = filter;

    ShadowPackageManager manager = Shadows.shadowOf(RuntimeEnvironment.application
            .getPackageManager());
    manager.addResolveInfoForIntent(intent, resolveInfo);
}
 

/** Returns a map from package name to LaunchMode for all available Custom Tabs Services. */
private static Map<String, Integer> getLaunchModesForCustomTabsServices(PackageManager pm) {
    List<ResolveInfo> services = pm.queryIntentServices(
            new Intent(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION),
            PackageManager.GET_RESOLVED_FILTER);

    Map<String, Integer> customTabsServices = new HashMap<>();
    for (ResolveInfo service : services) {
        String packageName = service.serviceInfo.packageName;

        if (TrustedWebUtils.SUPPORTED_CHROME_PACKAGES.contains(packageName) &&
                !TrustedWebUtils.chromeNeedsUpdate(pm, packageName)) {
            // Chrome 72-74 support Trusted Web Activites but don't yet have the TWA category on
            // their CustomTabsService.
            customTabsServices.put(packageName, LaunchMode.TRUSTED_WEB_ACTIVITY);
            continue;
        }

        boolean supportsTwas = service.filter != null &&
                service.filter.hasCategory(TRUSTED_WEB_ACTIVITY_CATEGORY);

        customTabsServices.put(packageName,
                supportsTwas ? LaunchMode.TRUSTED_WEB_ACTIVITY : LaunchMode.CUSTOM_TAB);
    }
    return customTabsServices;
}
 

public int postMessage(CustomTabsSessionToken session, String message, Bundle extras) {
    int result;
    if (!mWarmupHasBeenCalled.get()) result = CustomTabsService.RESULT_FAILURE_DISALLOWED;
    if (!isCallerForegroundOrSelf() && !CustomTabActivity.isActiveSession(session)) {
        result = CustomTabsService.RESULT_FAILURE_DISALLOWED;
    }
    // If called before a validatePostMessageOrigin, the post message origin will be invalid and
    // will return a failure result here.
    result = mClientManager.postMessage(session, message);
    logCall("postMessage", result);
    return result;
}
 

public int postMessage(CustomTabsSessionToken session, String message, Bundle extras) {
    int result;
    if (!mWarmupHasBeenCalled.get()) result = CustomTabsService.RESULT_FAILURE_DISALLOWED;
    if (!isCallerForegroundOrSelf() && !CustomTabActivity.isActiveSession(session)) {
        result = CustomTabsService.RESULT_FAILURE_DISALLOWED;
    }
    // If called before a validatePostMessageOrigin, the post message origin will be invalid and
    // will return a failure result here.
    result = mClientManager.postMessage(session, message);
    logCall("postMessage", result);
    return result;
}
 

private void installCustomTabsProvider(String packageName) {
    installBrowser(packageName);

    Intent intent = new Intent()
            .setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);

    ResolveInfo resolveInfo = new ResolveInfo();
    resolveInfo.serviceInfo = new ServiceInfo();
    resolveInfo.serviceInfo.packageName = packageName;

    mShadowPackageManager.addResolveInfoForIntent(intent, resolveInfo);
}
 

private void installTrustedWebActivityProvider(String packageName) {
    installBrowser(packageName);

    Intent intent = new Intent()
            .setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);

    ResolveInfo resolveInfo = new ResolveInfo();
    resolveInfo.serviceInfo = new ServiceInfo();
    resolveInfo.serviceInfo.packageName = packageName;
    resolveInfo.filter = Mockito.mock(IntentFilter.class);
    when(resolveInfo.filter.hasCategory(eq(TRUSTED_WEB_ACTIVITY_CATEGORY))).thenReturn(true);

    mShadowPackageManager.addResolveInfoForIntent(intent, resolveInfo);
}
 

public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!android.text.TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    }
    return sPackageNameToUse;
}
 

@Override
protected int postMessage(CustomTabsSessionToken sessionToken, String message,
        Bundle extras) {
    if (!isFirstRunDone()) return CustomTabsService.RESULT_FAILURE_DISALLOWED;
    return mConnection.postMessage(sessionToken, message, extras);
}
 

public synchronized int postMessage(CustomTabsSessionToken session, String message) {
    SessionParams params = mSessionParams.get(session);
    if (params == null) return CustomTabsService.RESULT_FAILURE_MESSAGING_ERROR;
    return params.postMessageHandler.postMessageFromClientApp(message);
}
 

/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 * <p/>
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
        && !hasSpecializedHandlerIntents(context, activityIntent)
        && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 * <p>
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 *
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 *
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

@Override
protected int postMessage(CustomTabsSessionToken sessionToken, String message,
        Bundle extras) {
    if (!isFirstRunDone()) return CustomTabsService.RESULT_FAILURE_DISALLOWED;
    return mConnection.postMessage(sessionToken, message, extras);
}
 

public synchronized int postMessage(CustomTabsSessionToken session, String message) {
    SessionParams params = mSessionParams.get(session);
    if (params == null) return CustomTabsService.RESULT_FAILURE_MESSAGING_ERROR;
    return params.postMessageHandler.postMessage(message);
}
 

/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 * <p>
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();

    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}