网络比分核心类

packages\modules\Connectivity\framework\src\android\net\NetworkScore.java
packages\modules\Connectivity\framework\src\android\net\NetworkAgent.java
packages\modules\Connectivity\service\src\com\android\server\ConnectivityService.java

1、WIFI 默认分数 60

packages\modules\Wifi\service\java\com\android\server\wifi\WifiScoreReport.java

// Cache of the last score
private int mLegacyIntScore = ConnectedScore.WIFI_INITIAL_SCORE;//60private NetworkScore.Builder getScoreBuilder() {// We should force keep connected for a MBB CMM which is not lingering.boolean shouldForceKeepConnected =mCurrentRole == ActiveModeManager.ROLE_CLIENT_SECONDARY_TRANSIENT&& !mShouldReduceNetworkScore;int keepConnectedReason =shouldForceKeepConnected? NetworkScore.KEEP_CONNECTED_FOR_HANDOVER: NetworkScore.KEEP_CONNECTED_NONE;boolean exiting = SdkLevel.isAtLeastS() && mWifiConnectedNetworkScorerHolder != null? !mIsUsable : mLegacyIntScore < ConnectedScore.WIFI_TRANSITION_SCORE;return new NetworkScore.Builder().setLegacyInt(mShouldReduceNetworkScore ? LINGERING_SCORE : mLegacyIntScore).setTransportPrimary(mCurrentRole == ActiveModeManager.ROLE_CLIENT_PRIMARY).setExiting(exiting).setKeepConnectedReason(keepConnectedReason);}

packages\modules\Wifi\service\java\com\android\server\wifi\ConnectedScore.java

 /** Maximum NetworkAgent score that should be generated by wifi */public static final int WIFI_MAX_SCORE = 60;/** Initial Wifi score when starting up NetworkAgent. */public static final int WIFI_INITIAL_SCORE = WIFI_MAX_SCORE;

2、4G 默认分数 50

frameworks\opt\telephony\src\java\com\android\internal\telephony\data\TelephonyNetworkFactory.java

private static final int TELEPHONY_NETWORK_SCORE = 50;public TelephonyNetworkFactory(Looper looper, Phone phone, PhoneSwitcher phoneSwitcher) {super(looper, phone.getContext(), "TelephonyNetworkFactory[" + phone.getPhoneId()+ "]", null);mPhone = phone;mInternalHandler = new InternalHandler(looper);mSubscriptionController = SubscriptionController.getInstance();mAccessNetworksManager = mPhone.getAccessNetworksManager();setCapabilityFilter(makeNetworkFilter(mSubscriptionController, mPhone.getPhoneId()));setScoreFilter(TELEPHONY_NETWORK_SCORE);mPhoneSwitcher = phoneSwitcher;.......// apply or revoke requests if our active-ness changesprivate void onActivePhoneSwitch() {logl("onActivePhoneSwitch");if (mSubscriptionId == mSubscriptionController.getActiveDataSubscriptionId()) {logl("onActivePhoneSwitch: set primary flag for phoneId: " + mPhone.getPhoneId());setScoreFilter(new NetworkScore.Builder().setLegacyInt(TELEPHONY_NETWORK_SCORE).setTransportPrimary(true).build());} else {setScoreFilter(new NetworkScore.Builder().setLegacyInt(TELEPHONY_NETWORK_SCORE).setTransportPrimary(false).build());}

3、以太网 默认分数 Integer.MIN_VALUE

packages\modules\Connectivity\service-t\src\com\android\server\ethernet\EthernetNetworkFactory.java

 private static NetworkScore getBestNetworkScore() {return new NetworkScore.Builder().build();}private void setCapabilities(@NonNull final NetworkCapabilities capabilities) {mCapabilities = new NetworkCapabilities(capabilities);mLegacyType = getLegacyType(mCapabilities);if (mLinkUp) {// registering a new network offer will update the existing one, not install a// new one.mNetworkProvider.registerNetworkOffer(getBestNetworkScore(),new NetworkCapabilities(capabilities), cmd -> mHandler.post(cmd),mNetworkOfferCallback);}}