安卓联网优先级

https://blog.csdn.net/ansondroider/article/details/78040544

5.1以前请参考:

http://blog.csdn.net/u013686019/article/details/51447129

平台

RK3288 + android5.1

需求

修改网络连接优先级为

Ethernet > Mobile > Wifi

修改

[java] view plain copy

1. diff --git a/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DataConnection.java b/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DataConnection.java  
2. old mode 100644  
3. new mode 100755  
4. index 09b3c9b..00fba2a  
5. --- a/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DataConnection.java  
6. +++ b/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DataConnection.java  
7. @@ -1734,7 +1734,7 @@ public final class DataConnection extends StateMachine {  
8.              misc.subscriberId = mPhone.getSubscriberId();  
9.              mNetworkAgent = new DcNetworkAgent(getHandler().getLooper(), mPhone.getContext(),  
10.                      "DcNetworkAgent", mNetworkInfo, makeNetworkCapabilities(), mLinkProperties,  
11. -                    50, misc);  
12. +                    100, misc);  
13.          }  
14.    
15.          @Override  
16. diff --git a/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DctController.java b/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DctController.java  
17. old mode 100644  
18. new mode 100755  
19. index 4fce2ec..fdb59b1  
20. --- a/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DctController.java  
21. +++ b/frameworks/opt/telephony/src/java/com/android/internal/telephony/dataconnection/DctController.java  
22. @@ -152,7 +152,7 @@ public class DctController extends Handler {  
23.          mNetworkFactory[index] = new TelephonyNetworkFactory(this.getLooper(),  
24.                  mPhones[index].getContext(), "TelephonyNetworkFactory", phoneBase,  
25.                  mNetworkFilter[index]);  
26. -        mNetworkFactory[index].setScoreFilter(50);  
27. +        mNetworkFactory[index].setScoreFilter(100);  
28.          mNetworkFactoryMessenger[index] = new Messenger(mNetworkFactory[index]);  
29.          cm.registerNetworkFactory(mNetworkFactoryMessenger[index], "Telephony");  
30.      }  

说明

网络优先级采用新的score机制.

以上改法, 将移动网络的score从50 加到 100.

从当前代码中看, Ethernet (150), Wifi(60)

frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiStateMachine.java(Wifi)

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1. mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext,  
2.         "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter,  
3.         mLinkProperties, 60);  

[java] view plain copy

1. mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext,  
2.         NETWORKTYPE, mNetworkCapabilitiesFilter);  
3. mNetworkFactory.setScoreFilter(60);  

frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java(Ethernet)

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1. private static final int NETWORK_SCORE = 150;   
2.                    // Create our NetworkAgent.  
3.                     mNetworkAgent = new NetworkAgent(mFactory.getLooper(), mContext,  
4.                             NETWORK_TYPE, mNetworkInfo, mNetworkCapabilities, mLinkProperties,  
5.                             NETWORK_SCORE) {  

// Create and register our NetworkFactory.

        mFactory = new LocalNetworkFactory(NETWORK_TYPE, context, target.getLooper());

[java] view plain copy

1. /**  

[java] view plain copy

1.  * Updates interface state variables.  
2.  * Called on link state changes or on startup.  
3.  */  
4. private void updateInterfaceState(String iface, boolean up) {  
5.     if (!mIface.equals(iface)) {  
6.         return;  
7.     }  
8.     Log.d(TAG, "updateInterface: " + iface + " link " + (up ? "up" : "down"));  
9.   
10.     synchronized(this) {  
11.         mLinkUp = up;  
12.         mNetworkInfo.setIsAvailable(up);  
13.         if (!up) {  
14.             // Tell the agent we're disconnected. It will call disconnect().  
15.             mNetworkInfo.setDetailedState(DetailedState.DISCONNECTED, null, mHwAddr);  
16.             sendEthernetStateChangedBroadcast(EthernetManager.ETHER_STATE_DISCONNECTED);  
17.         }  
18.         updateAgent();  
19.         // set our score lower than any network could go  
20.         // so we get dropped.  TODO - just unregister the factory  
21.         // when link goes down.  
22.         mFactory.setScoreFilter(up ? NETWORK_SCORE : -1);  
23.     }  
24. }