bluetoothSocket.Connect（）上的服务发现失败

本文介绍了bluetoothSocket.Connect（）上的服务发现失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

嗨。

在这个程序中，当我调用bluetoothSocket.Connect（）时，会发生以下错误：

 Java.IO.IOException：/Users/builder/data/lanes/monodroid-mac-monodroid-4.2.3中的Android.Runtime.JNIEnv.CallVoidMethod（intptr，intptr）[0x00022]中的服务发现失败
 -branch / 410a5aba / source / monodroid / src / Mono.Android / src / Runtime / JNIEnv.g.cs：356 
 
在/ Users中的Android.Bluetooth.BluetoothSocket.Connect（）[0x0002d] /builder/data/lanes/monodroid-mac-monodroid-4.2.3-branch/410a5aba/source/monodroid/src/Mono.Android/platforms/android-8/src/generated/Android.Bluetooth.BluetoothSocket.cs:72 
 
在AndroidBluetooth.Activity1.ConnectButton_Click（object，System.EventArgs）[0x0005d]在c：\ Users \ emhammadali1375 \Documents\Projects\AndroidBluetooth\AndroidBluetooth \Activity1.cs ：/ Users / builder / data /中的Android.Views.View / IOnClickListenerImplementor.OnClick（Android.Views.View）[0x0000b]中的37 
 
 lanes / monodroid-mac-monodroid-4.2.3-branch / 410a5aba / source / monodroid / src / Mono.Android / platforms / android-8 / src / generated / Android.Views.View.cs：629 
 
 at Android.Views.View / IOnClickListenerInvoker.n_OnClick_Landroid_view_View_（intptr，intptr，intptr）[0x00010] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.3-branch/410a5aba/source/monodroid /src/Mono.Android/platforms/android-8/src/generated/Android.Views.View.cs:600 
 
 at（wrapper dynamic-method）object.b05cb9ef-ea88-414d-bea0 -d7bd33b4de9c（intptr，intptr，intptr）< IL 0x00012,0x00033> 
 
 
 
 ---托管异常堆栈跟踪结束--- 
 
 java.io.IOException：服务发现失败
 
在android.bluetooth.BluetoothSocket $ SdpHelper.doSdp（BluetoothSocket.java:406）
 
在android.bluetooth.BluetoothSocket.connect（BluetoothSocket.java:217）
 
在mono.android.view.View_OnClickListenerImplementor.n_onClick（原生方法）
 
在mono.android.view.View_OnClickListenerImplementor.onClick（View_OnClickListenerImplementor.java:29）
 
在android .view.View.performClick（View.java:2485）
 
在android.view.View $ PerformClick.run（View.java:9080）
 
在android.os .Handler.handleCallback（Handler.java:587）
 
在android.os.Handler.dispatchMessage（Handler.java:92）
 
在android.os.Looper.loop （Looper.java:130）
 
在android.app.ActivityThread.main（ActivityThread.java:3687）
 
 at java.lang.reflect.Method.invokeNative（Native方法）
 
 at java.lang.reflect.Method.invoke（Method.java:507）
 
 at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:867)
 
 at com.android.internal.os.ZygoteInit.main（ZygoteInit.java:625) 
 
 at dalvik.system.NativeStart.main（Native Method）

这是我的程序：

 使用系统; 
 使用 System.IO; 
 使用 Android.App; 
 使用 Android.Content; 
 使用 Android.Runtime; 
 使用 Android.Views; 
 使用 Android.Widget; 
 使用 Android.OS; 
 使用 Android.Bluetooth; 
 
 命名空间 AndroidBluetooth 
 {
 [活动（标签=   AndroidBluetooth，MainLauncher =  true ）] 
 公开 类活动1：活动
 {
 受保护 覆盖  void  OnCreate（捆绑包）
 {
  base  .OnCreate（bundle）; 
 SetContentView（Resource.Layout.Main）; 
 Button connectButton = FindViewById< Button>（Resource.Id.ConnectButton）; 
 connectButton.Click + = ConnectButton_Click; 
} 
 
  void  ConnectButton_Click（ object  sender，EventArgs e） 
 {
 BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter; 
 TextView topStatusTextView = FindViewById< TextView> （Resource.Id.TopStatusTextView）; 
  if （！bluetoothAdapter.IsEnabled）{
 Intent enableBluetooth =  new 意图（ BluetoothAdapter.ActionRequestEnable）; 
 StartActivityForResult（enableBluetooth， 1 ）; 
} 
 Java.Util.UUID serialUUID = Java.Util.UUID.FromString（  00001101 -0000-1000-8000-00805F9B34FB）; 
 BluetoothDevice bluetoothDevice = bluetoothAdapter.GetRemoteDevice（  00：26：5E：DE：7D：FC）; 
 BluetoothSocket bluetoothSocket =  null ; 
 Stream outStream =  null ; 
 bluetoothSocket = bluetoothDevice.CreateRfcommSocketToServiceRecord（serialUUID）; 
 bluetoothSocket.Connect（）; 
 outStream = bluetoothSocket.OutputStream; 
} 
} 
}

我该怎么办？

请帮帮我。

解决方案

Hi.
In this program when i call bluetoothSocket.Connect() this error happen :

Java.IO.IOException: Service discovery failed
  at Android.Runtime.JNIEnv.CallVoidMethod (intptr,intptr) [0x00022] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.3-branch/410a5aba/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:356

  at Android.Bluetooth.BluetoothSocket.Connect () [0x0002d] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.3-branch/410a5aba/source/monodroid/src/Mono.Android/platforms/android-8/src/generated/Android.Bluetooth.BluetoothSocket.cs:72

  at AndroidBluetooth.Activity1.ConnectButton_Click (object,System.EventArgs) [0x0005d] in c:\Users\mohammadali1375\Documents\Projects\AndroidBluetooth\AndroidBluetooth\Activity1.cs:37

  at Android.Views.View/IOnClickListenerImplementor.OnClick (Android.Views.View) [0x0000b] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.3-branch/410a5aba/source/monodroid/src/Mono.Android/platforms/android-8/src/generated/Android.Views.View.cs:629

  at Android.Views.View/IOnClickListenerInvoker.n_OnClick_Landroid_view_View_ (intptr,intptr,intptr) [0x00010] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.3-branch/410a5aba/source/monodroid/src/Mono.Android/platforms/android-8/src/generated/Android.Views.View.cs:600

  at (wrapper dynamic-method) object.b05cb9ef-ea88-414d-bea0-d7bd33b4de9c (intptr,intptr,intptr) <IL 0x00012, 0x00033>

  

  --- End of managed exception stack trace ---

  java.io.IOException: Service discovery failed

  	at android.bluetooth.BluetoothSocket$SdpHelper.doSdp(BluetoothSocket.java:406)

  	at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:217)

  	at mono.android.view.View_OnClickListenerImplementor.n_onClick(Native Method)

  	at mono.android.view.View_OnClickListenerImplementor.onClick(View_OnClickListenerImplementor.java:29)

  	at android.view.View.performClick(View.java:2485)

  	at android.view.View$PerformClick.run(View.java:9080)

  	at android.os.Handler.handleCallback(Handler.java:587)

  	at android.os.Handler.dispatchMessage(Handler.java:92)

  	at android.os.Looper.loop(Looper.java:130)

  	at android.app.ActivityThread.main(ActivityThread.java:3687)

  	at java.lang.reflect.Method.invokeNative(Native Method)

  	at java.lang.reflect.Method.invoke(Method.java:507)

  	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)

  	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)

  	at dalvik.system.NativeStart.main(Native Method)

and this is my program :

using System;
using System.IO;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Bluetooth;

namespace AndroidBluetooth
{
	[Activity (Label = "AndroidBluetooth", MainLauncher = true)]
	public class Activity1 : Activity
	{
		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);
			SetContentView (Resource.Layout.Main);
			Button connectButton = FindViewById<Button>(Resource.Id.ConnectButton);
			connectButton.Click += ConnectButton_Click;
		}

		void ConnectButton_Click (object sender, EventArgs e)
		{
			BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter;
			TextView topStatusTextView = FindViewById<TextView> (Resource.Id.TopStatusTextView);
			if (!bluetoothAdapter.IsEnabled) {
				Intent enableBluetooth = new Intent (BluetoothAdapter.ActionRequestEnable);
				StartActivityForResult (enableBluetooth, 1);
			}													
			Java.Util.UUID serialUUID = Java.Util.UUID.FromString ("00001101-0000-1000-8000-00805F9B34FB");
			BluetoothDevice bluetoothDevice = bluetoothAdapter.GetRemoteDevice ("00:26:5E:DE:7D:FC");
			BluetoothSocket bluetoothSocket = null;
			Stream outStream = null;
			bluetoothSocket = bluetoothDevice.CreateRfcommSocketToServiceRecord (serialUUID);	
			bluetoothSocket.Connect();
			outStream = bluetoothSocket.OutputStream;
		}
	}
}

What should I do ?
Please help me.

解决方案

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