條件：WiFi 5G自動(dòng)切換，當(dāng)小于-69db和備選WiFi大于-60db是切換

frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiAutoJoinController.java

public static int mchangedelay=0;

/**

* Ask WifiStateMachine permission to switch :

* if user is currently streaming voice traffic,

* then we should not be allowed to switch regardless of the delta

*/

if(YlDefineSystemProperties.MMI_BOOL_WIFI_5G_AUTO_JOIN)

{

if ((candidate != null) && (currentConfiguration != null))

{

mToast = Toast.makeText(mContext,"rssi5 =" + currentConfiguration.visibility.rssi5+ ", "+candidate.visibility.rssi5,Toast.LENGTH_SHORT);

mToast.show();

if(mchangedelay>0)

mchangedelay--;

if((candidate.visibility.rssi5!=-127) && (currentConfiguration.visibility.rssi5!=-127) && (mchangedelay==0))

{

if((currentConfiguration.visibility.rssi5-60))

{

mchangedelay=4;

networkDelta=100;

}

}

}

}

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