android客户端用bindservice来动态更新UI数据的实例

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我是靠谱客的博主无私黄豆，最近开发中收集的这篇文章主要介绍android客户端用bindservice来动态更新UI数据的实例，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

上一篇文章是用线程来弄，但这样会很容易丢失数据，所以又研究了service，其实都是网上的例子，但那些例子都用button.onclicklistener方法获取数据，为了可以动态更新数据，我调试了很久。鉴于自己研究浪费太多时间，拿出来分享下。代码只有客户端。

1、login.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:orientation="vertical">
   
        <TableLayout 
         android:layout_width="fill_parent"
    	 android:layout_height="wrap_content"
            >
        <TableRow>
            <TextView 
                android:layout_width="wrap_content"
				android:layout_height="wrap_content"
				android:text="账号："
                />
       <EditText
			android:id="@+id/username"
			android:layout_width="200dp"
			android:layout_height="wrap_content"
			android:layout_marginLeft="10dp"
		    android:layout_marginTop="10dp"
		    android:layout_marginRight="10dp"
		    android:hint="账号"
		/>
         </TableRow> 
         <TableRow>
            <TextView 
                android:layout_width="wrap_content"
				android:layout_height="wrap_content"
				android:text="密码："
                />
        <EditText
			android:id="@+id/password"
			android:password="true"
			android:layout_width="200dp"
			android:layout_height="wrap_content"
			android:layout_marginLeft="10dp"
		    android:layout_marginTop="10dp"
		    android:layout_marginRight="10dp"
			android:hint="密码"
		/>
         </TableRow>  
         
         
        </TableLayout>
         <Button
			android:id="@+id/login"
			android:layout_width="fill_parent"
			android:layout_height="wrap_content"
			android:layout_marginLeft="10dp"
			android:layout_marginTop="10dp"
			android:layout_marginRight="10dp"
			android:text="登录"
	/>

</LinearLayout>

success.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:orientation="vertical">
    
    <TextView 
        android:id="@+id/success"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="不断接受信息，并提示"
        />
    <EditText 
        android:id="@+id/message"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:cursorVisible="false"
        />
   
    </LinearLayout>

2、类

LoginActivity03.java:

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

import com.login.MD5;
import com.login.R;
import com.util.ApplicationUtil;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class LoginActivity03 extends Activity{

	private EditText usernameT;
	private EditText passwordT;
	private Button loginButton;
	private Socket socket;
	private DataOutputStream out;
	private DataInputStream in;

	@Override
	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);
		setContentView(R.layout.login);
		
		usernameT = (EditText) findViewById(R.id.username);
		passwordT = (EditText) findViewById(R.id.password);
		loginButton = (Button) findViewById(R.id.login);
		
		
		
		loginButton.setOnClickListener(new OnClickListener(){
			public void onClick(View v) {
				
				ApplicationUtil appUtil =  (ApplicationUtil) LoginActivity03.this.getApplication();
				try {
					appUtil.init();
					Socket socket = appUtil.getSocket();
					out = appUtil.getOut();
					in = appUtil.getIn();
					
				} catch (IOException e1) {
					e1.printStackTrace();
				} catch (Exception e1) {
					e1.printStackTrace();
				}
				
				
				String username = usernameT.getText().toString();
				String password = passwordT.getText().toString();
				MD5 md5 = new MD5();
				String ss = md5.MD5(username+"|"+password);
	
				try {
					//发送数据
					String str = "[login]|"+ss; 
					//String str = "[login]|"+md5.MD5(username)+"|"+md5.MD5(password);
					out.writeBytes(str);
					out.flush();
					System.out.println("str ===> "+str);
					 //创建一个缓冲字节数
					int r = in.available();  
					while(r==0){  
					 r = in.available();  
					}  
					byte[] b = new byte[r];
					in.read(b);
					String result = new String(b,"utf-8");
					System.out.println("result = "+result);
					if(result.equals("登陆成功")){
						Intent intent = new Intent();
						intent.setClass(LoginActivity03.this, MainActivity03.class);
						startActivity(intent);
					}
					else
					{
						Toast.makeText(LoginActivity03.this, "登录失败！！！", Toast.LENGTH_LONG).show();
						System.out.println("登录失败！！！");
						
						Intent intent = new Intent();
						intent.setClass(LoginActivity03.this, MainActivity03.class);
						startActivity(intent);
					}
			
				} catch (UnknownHostException e) {
					e.printStackTrace();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		});
		
	}
}

MainActivity03.java:

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

import com.broadcast.UpdateService.UpdateData;
import com.image.TestActivity;
import com.login.R;
import com.util.ApplicationUtil;

import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.provider.MediaStore.Audio;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity03 extends Activity {

	 private EditText mess; 
	 private Button kk;

	 private UpdateService.MyBinder serviceBinder; 
	 private ServiceConnection serviceConn = new ServiceConnection(){
		public void onServiceConnected(ComponentName arg0, IBinder service) {
			serviceBinder = (UpdateService.MyBinder)service;	
			 if(serviceBinder!=null)
		        {
		   		 serviceBinder.setDate(mess, new UpdateData() {   
		                public void update(EditText mess, String data) {
		                    mess.append(data+"n");
		                }
		            });
		        } 		
		}
		public void onServiceDisconnected(ComponentName arg0) {
			serviceBinder = null;
		}};
	 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.success);
        mess = (EditText) findViewById(R.id.message);
        
        Intent intent = new Intent(MainActivity03.this,UpdateService.class);
        this.bindService(new Intent("com.broadcast.UpdateService"),this.serviceConn,BIND_AUTO_CREATE);
       
   }
   
    @Override
    protected void onDestroy() {
    	this.unbindService(serviceConn);
    	super.onDestroy(); //注意先后
    }
}

UpdateService.java:
import java.io.DataInputStream;
import java.io.IOException;

import com.login.MainActivity;
import com.util.ApplicationUtil;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.util.Log;
import android.widget.EditText;

public class UpdateService extends Service {
    private String data;
    private Handler handler;
    public boolean isRunning;
    private DataInputStream in;

    @Override
    public IBinder onBind(Intent intent) {
        return new MyBinder();
    }
    
    @Override
	public void onCreate() {
		super.onCreate();
		 ApplicationUtil appUtil = (ApplicationUtil) UpdateService.this.getApplication();
		 in = appUtil.getIn();
	}


	public class MyBinder extends Binder {
        public void setDate(final EditText tv, final UpdateData updata) 
        {
            new Thread(new oneThread()).start();
            handler = new Handler() {
                public void handleMessage(Message msg) {
                    updata.update(tv,data);
                }
            };
        }
    }
	 public interface UpdateData {
	        public void update(EditText tv, String data);

	    }
	 
	public class oneThread implements Runnable{
		 public boolean isRunning = true;
		public void run() {	 
			while(isRunning){
			try {
				Thread.sleep(500);
				 //创建一个缓冲字节数
				int r = in.available();
				while(r==0){  
					 r = in.available();  
					}
				byte[] b = new byte[r];
				in.read(b);
				data = new String(b,"utf-8");
				//每当读到来自服务器的数据后，发送消息通知程序页面显示数据  
				  Message msg = handler.obtainMessage();
				  msg.obj = data;
				  handler.sendMessage(msg);
				  Log.v("thread", data);
			} catch (IOException e) {
				e.printStackTrace();
			} catch (InterruptedException e) {
				e.printStackTrace();
			} 
		}
		}
	}

   
}



ApplicationUtil.java:import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;

import android.app.Application;

public class ApplicationUtil extends Application{

	private Socket socket;
	private DataOutputStream out = null;
	private DataInputStream in = null;
	
	public ApplicationUtil() throws IOException {
		super();
	}

	public void init() throws IOException, Exception{
		this.socket = new Socket("192.168.1.104",10202);
		this.out = new DataOutputStream(socket.getOutputStream());
		this.in = new DataInputStream(socket.getInputStream());
	}
	
	public Socket getSocket() {
		return socket;
	}

	public void setSocket(Socket socket) {
		this.socket = socket;
	}

	public DataOutputStream getOut() {
		return out;
	}

	public void setOut(DataOutputStream out) {
		this.out = out;
	}

	public DataInputStream getIn() {
		return in;
	}

	public void setIn(DataInputStream in) {
		this.in = in;
	}
}


测试效果的图片，我也想黏贴上去，不知道怎弄。流程就是登陆成功后，跳转到MainActivity03的界面，这个界面会不断从输入流读出数据到控件中。






左边是服务端的数据窗口，