发现服务会导致系统崩溃.我正在尝试的发现类型是
“_http._tcp.”
这是日志.
D/NsdService(13310): discover services E/AndroidRuntime(13310): *** FATAL EXCEPTION IN SYstem PROCESS: NsdService E/AndroidRuntime(13310): java.lang.NullPointerException E/AndroidRuntime(13310): at com.android.server.NsdService$ClientInfo.access$1200(NsdService.java:801) E/AndroidRuntime(13310): at com.android.server.NsdService$NsdStateMachine$EnabledState.requestLimitReached(NsdService.java:244) E/AndroidRuntime(13310): at com.android.server.NsdService$NsdStateMachine$EnabledState.processMessage(NsdService.java:292) E/AndroidRuntime(13310): at com.android.internal.util.StateMachine$SmHandler.processMsg(StateMachine.java:905) E/AndroidRuntime(13310): at com.android.internal.util.StateMachine$SmHandler.handleMessage(StateMachine.java:760) E/AndroidRuntime(13310): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime(13310): at android.os.Looper.loop(Looper.java:137) E/AndroidRuntime(13310): at android.os.HandlerThread.run(HandlerThread.java:60)
我用来开始发现的代码是
NsdManager nsd = (NsdManager) getSystemService(Context.NSD_SERVICE); nsd.discoverServices("_http._tcp.",NsdManager.PROTOCOL_DNS_SD,discoveryListener);