安卓4.0.3 SOCKET编程的问题
今天编一个安卓的小程序，就是和SOCKET通信，编出来以后我在2.3的模拟器上运行正常，可以通信，但是放到手机（4.0.3系统）上刚打开就强制跳出，我又试了一下4.0.3的模拟器，同样强制跳出，麻烦帮我看看我这个小程序，还有就是最好能说明一下4.0.3下编程的注意事项。客户端（安卓）程序
package com.example.test;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInte易做图ce;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class SocketDemo extends Activity implements Runnable {
private TextView tv_msg = null;
private EditText ed_msg = null;
private Button btn_send = null;
// private Button btn_login = null;
private static final String HOST = "192.168.49.1";
private static final int PORT = 9999;
private Socket socket = null;
private BufferedReader in = null;
private PrintWriter out = null;
private String content = "";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv_msg = (TextView) findViewById(R.id.TextView);
ed_msg = (EditText) findViewById(R.id.EditText01);
// btn_login = (Button) findViewById(R.id.Button01);
btn_send = (Button) findViewById(R.id.Button02);
try {
socket = new Socket(HOST, PORT);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(
socket.getOutputStream())), true);
} catch (IOException ex) {
ex.printStackTrace();
ShowDialog("login exception" + ex.getMessage());
}
btn_send.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
String msg = ed_msg.getText().toString();
if (socket.isConnected()) {
if (!socket.isOutputShutdown()) {
out.println(msg);
}
}
}
});
new Thread(SocketDemo.this).start();
}
public void ShowDialog(String msg) {
new AlertDialog.Builder(this).setTitle("notification").setMessage(msg)
.setPositiveButton("ok", new DialogInte易做图ce.OnClickListener() {
public void onClick(DialogInte易做图ce dialog, int which) {
// TODO Auto-generated method stub
}
}).show();
}
public void run() {
try {
while (true) {
if (socket.isConnected()) {
if (!socket.isInputShutdown()) {
if ((content = in.readLine()) != null) {
content += "\n";
mHandler.sendMessage(mHandler.obtainMessage());
} else {
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
public Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
super.handleMessage(msg);
tv_msg.setText(tv_msg.getText().toString() + content);
}
};
}
manifest:
android socket --------------------编程问答-------------------- 这没有错误信息怎么搞 --------------------编程问答-------------------- 我也是同样遇到了这个问题，求大神求解 --------------------编程问答-------------------- 到 AndroidManifest.Xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="15"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".SocketDemo"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
改<uses-sdk android:minSdkVersion="7" />
--------------------编程问答-------------------- 3.0以上Socket的使用必须放在线程中完成 --------------------编程问答-------------------- 在安卓4.0以上版本中，socket不能再主进程上创建，必须开线程。不过我也是刚知道，正在解决中~~ --------------------编程问答--------------------
这儿也能问安卓的了补充：Java , Java相关
