安卓开发AlertDialog中的EditText无法调出输入法的问题解决方法

 public class DatabaseHelper extends SQLiteOpenHelper {    
  DatabaseHelper(Context context, String name, CursorFactory cursorFactory, int version)
  {    
    super(context, name, cursorFactory, version);    
     }    
    
     @Override   
     public void onCreate(SQLiteDatabase db) {    
         // TODO 创建数据库后，对数据库的操作    
     }    
    
     @Override   
 public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {    
         // TODO 更改数据库版本的操作    
     }    
    
 @Override   
 public void onOpen(SQLiteDatabase db) {    
         super.onOpen(db);      
         // TODO 每次成功打开数据库后首先被执行    
     }    
 }    
 

public class DatabaseManager{
                private final int BUFFER_SIZE = 400000;
                public static final String DB_NAME = "myDatabase.db"; //保存的数据库文件名
                public static final String PACKAGE_NAME = "com.android.ImportDBTest";//包名
                public static final String DB_PATH = "/data"
                     + Environment.getDataDirectory().getAbsolutePath() + "/"
                     + PACKAGE_NAME; //在手机里存放数据库的位置

                private SQLiteDatabase database;
                private Context context;

                DBManager(Context context) {
                     this.context = context;
                }

                public void openDatabase() {
                     this.database = this.openDatabase(DB_PATH + "/" + DB_NAME);
                }

                private SQLiteDatabase openDatabase(String dbfile) {
                     try {
                     if (!(new File(dbfile).exists())) {　　//判断数据库文件是否存在，若不存在则执行导入，否则直接打开数据库
                     InputStream is = this.context.getResources().openRawResource(
                     R.raw.myDatabase); //欲导入的数据库
                     FileOutputStream fos = new FileOutputStream(dbfile);
                     byte[] buffer = new byte[BUFFER_SIZE];
                     int count = 0;
                     while ((count = is.read(buffer)) > 0) {
                     fos.write(buffer, 0, count);
                     }
                     fos.close();
                     is.close();
                     }
                     SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(dbfile,
                     null);
                     return db;
                     } catch (FileNotFoundException e) {
                     Log.e("Database", "File not found");
                     e.printStackTrace();
                     } catch (IOException e) {
                     Log.e("Database", "IO exception");
                     e.printStackTrace();
                     }
                     return null;
}

SQLiteDatabase db = new DBManager(this).openDatabase();

<LinearLayout
 android:layout_width="fill_parent"
android:layout_height="300dp"
 android:layout_marginLeft="10dp"
  android:layout_marginRight="10dp"
 android:layout_marginTop="20dp"
  android:background="@drawable/server_setting_bg"
android:orientation="vertical" >
 </LinearLayout>

import java.io.IOException;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class SimpleServer {

    /**
     * @param args
     * @throws IOException
     */
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub

        //创建一个ServerSocket,用于监听客户端socket的连接请求
        ServerSocket ss=new ServerSocket(30000);
        //采用循环不断接受来自客户端的请求,服务器端也对应产生一个Socket
        while(true){
            Socket s=ss.accept();
            OutputStream os=s.getOutputStream();
            os.write("您好，您收到了服务器的新年祝福！n".getBytes("utf-8"));
            os.close();
            s.close();
    }

    }}

package my.learn.tcp;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;
import java.net.UnknownHostException;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.EditText;

public class SimpleClient extends Activity {
    private EditText show;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        show = (EditText) findViewById(R.id.show);

        try {

            Socket socket = new Socket("自己计算机的IP地址", 30000);
            //设置10秒之后即认为是超时
            socket.setSoTimeout(10000);
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    socket.getInputStream()));
            String line = br.readLine();

            show.setText("来自服务器的数据："+line);

            br.close();
            socket.close();

        } catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            Log.e("UnknownHost", "来自服务器的数据");
            e.printStackTrace();
        } catch (IOException e) {
            Log.e("IOException", "来自服务器的数据");
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

<uses-permission  android:name="android.permission.INTERNET"/>