文件位置：

/OK3568-android11-source/frameworks/libs/net/common/src_servicescommon/android/net/NetworkFactory.java

在229行位置找到如下代码，注释掉下方两行标红语句

    protected void handleRemoveRequest(NetworkRequest request) {

        NetworkRequestInfo n = mNetworkRequests.get(request);

        if (n != null) {

           // mNetworkRequests.remove(request);

           // if (n.requested) releaseNetworkFor(n.request);

        }

    }

在292行位置找到如下两个函数，对标红部分语句，进行修改为下方状态，不再根据网络评分来加载和释放网络资源

    private boolean shouldNeedNetworkFor(NetworkRequestInfo n) {

        // If this request is already tracked, it doesn't qualify for need

        return !n.requested

            // If the score of this request is higher or equal to that of this factory and some

            // other factory is responsible for it, then this factory should not track the request

            // because it has no hope of satisfying it.

//            && (n.score < mScore || n.providerId == mProvider.getProviderId())

            // If this factory can't satisfy the capability needs of this request, then it

            // should not be tracked.

            && n.request.canBeSatisfiedBy(mCapabilityFilter)

            // Finally if the concrete implementation of the factory rejects the request, then

            // don't track it.

            && acceptRequest(n.request, n.score);

    }

    private boolean shouldReleaseNetworkFor(NetworkRequestInfo n) {

        // Don't release a request that's not tracked.

        return n.requested

            // The request should be released if it can't be satisfied by this factory. That

            // means either of the following conditions are met :

            // - Its score is too high to be satisfied by this factory and it's not already

            //   assigned to the factory

            // - This factory can't satisfy the capability needs of the request

            // - The concrete implementation of the factory rejects the request

//            && ((n.score > mScore && n.providerId != mProvider.getProviderId())

                   && ( !n.request.canBeSatisfiedBy(mCapabilityFilter)

                    || !acceptRequest(n.request, n.score));

    }

/OK3568-android11-source/frameworks/base/services/core/java/com/android/server/ConnectivityService.java

2726，注释nai.asyncChannel.disconnect();

6683，注释nai.asyncChannel.disconnect();

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当前状况为两个网络都能ping通外网，但是默认优先使用以太网，需要进行以下修改，降低以太网网络评分，以优先使用wifi

以太网网络评分：

/OK3568-android11-source/frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java

在538行，修改网络评分，改为return 55

        private int getNetworkScore() {

            // never set the network score below 0.

            if (!mLinkUp) {

                return 0;

            }

            int[] transportTypes = mCapabilities.getTransportTypes();

            if (transportTypes.length < 1) {

                Log.w(TAG, "Network inte**ce '" + mLinkProperties.getInte**ceName() + "' has no "

                        + "transport type associated with it. Score set to zero");

                return 0;

            }

            TransportInfo transportInfo = sTransports.get(transportTypes[0], /* if dne */ null);

            if (transportInfo != null) {

                return 55;

            }

            return 0;

        }