尝试调用实现客户端线程的类时强制关闭

发布于 2024-11-01 15:12:28 字数 1650 浏览 0 评论 0原文

我在 Android 上有一个客户端服务器应用程序，两者都在同一台机器上运行。在我的客户端应用程序的第一个活动中，我尝试调用应该连接到服务器应用程序的客户端类，但我强制关闭。

这就是我在应用程序的第一个活动中调用客户端类的方式：

Thread cThread=new Thread(new ClientThread());
cThread.start();

这是我的客户端类：

public class ClientThread implements Runnable{
    private Handler handler=new Handler();
    Socket  socket;
    private TextView clientState;
    public void run()
    {
        try
        {
            InetAddress serverAddr=InetAddress.getByName("10.0.2.2");
            handler.post(new Runnable(){
                public void run(){
                    clientState.setText(" try to connect!");
                }
            });
        socket=new Socket(serverAddr, 8080);

            //connected=true;
        handler.post(new Runnable(){
                public void run(){
                    clientState.setText("Connected!");
                }
            });

        }
        catch(Exception e){
            handler.post(new Runnable(){
                public void run(){
                    clientState.setText("Error");
                    }
            });

            e.printStackTrace();
        }

    }

      protected void onStop() {
            super.onStop();
            try {
                 // make sure you close the socket upon exiting
                //out.close();
                 socket.close();
             } catch (IOException e) {
                 e.printStackTrace();
             }
        }

}

有人能告诉我出了什么问题吗，或者至少给我一个想法。我应该说的一件事是，当客户端类集成到我的第一个活动中时，我的客户端工作正常 - 它连接到服务器（我的意思是，最初我没有客户端类，全部都在第一个活动中......并且它工作得很好）。我来这里是为了了解更多详情！提前谢谢你！

原文

I have a client-sever app on android,both running on the same machine.
In the first activity of my client app I try to call client class which should connect to the server application,but I get force close.

This is how I call the client class in the first activity of my app:

Thread cThread=new Thread(new ClientThread());
cThread.start();

and here is my client class:

public class ClientThread implements Runnable{
    private Handler handler=new Handler();
    Socket  socket;
    private TextView clientState;
    public void run()
    {
        try
        {
            InetAddress serverAddr=InetAddress.getByName("10.0.2.2");
            handler.post(new Runnable(){
                public void run(){
                    clientState.setText(" try to connect!");
                }
            });
        socket=new Socket(serverAddr, 8080);

            //connected=true;
        handler.post(new Runnable(){
                public void run(){
                    clientState.setText("Connected!");
                }
            });

        }
        catch(Exception e){
            handler.post(new Runnable(){
                public void run(){
                    clientState.setText("Error");
                    }
            });

            e.printStackTrace();
        }

    }

      protected void onStop() {
            super.onStop();
            try {
                 // make sure you close the socket upon exiting
                //out.close();
                 socket.close();
             } catch (IOException e) {
                 e.printStackTrace();
             }
        }

}

Can someone tell what is wrong or at least give me an ideea.
One thing that I should say is that my client works fine-it connects to the server,when the client class is integrated in my first activity(I mean,initially I had no client class was all in the first activity...and it worked fine).
I'm here for further details!
Thank u in advance!

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别把无礼当个性 2024-11-08 15:12:28

如果没有堆栈跟踪，它看起来会崩溃，因为您没有初始化文本视图。

package com.example.helloandroid;

import android.app.Activity;
import android.os.Bundle;

public class HelloAndroid extends Activity {
    TextView tv;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv = (TextView)findViewById(R.id.mytextview);
    }

    public class ClientThread extends Thread {
    ...// Do NOT init textview
    }
}

Without the stack trace it looks like it crashes cause you didn't initialize the textview.

package com.example.helloandroid;

import android.app.Activity;
import android.os.Bundle;

public class HelloAndroid extends Activity {
    TextView tv;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv = (TextView)findViewById(R.id.mytextview);
    }

    public class ClientThread extends Thread {
    ...// Do NOT init textview
    }
}

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