24 服务信使

服务端

MainActivity.java

package com.exa2mple.messengerserverdemo3;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

Myserver.java

package com.exa2mple.messengerserverdemo3;

import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import android.util.Log;

public class Myserver extends Service{


    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case 1:
                Log.e("fmy", "服务器收到信息:"+1);
                myMessenger = msg.replyTo;
                Message obtain = Message.obtain();
                obtain.what=2;
                try {
                    myMessenger.send(obtain);
                } catch (RemoteException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                break;

            default:
                break;
            }
        }
    };

    Messenger messenger = new Messenger(handler);
    Messenger myMessenger;
    @Override
    public IBinder onBind(Intent intent) {

        return messenger.getBinder();
    }


}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.exa2mple.messengerserverdemo3"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name="com.exa2mple.messengerserverdemo3.Myserver">
            <intent-filter>
                <action android:name="fmy.asd.asd"/>
            </intent-filter>
        </service>
    </application>

</manifest>

客户端

MainActivity.java

package com.exa2mple.messengerclientdemo3;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import android.util.Log;
import android.view.Menu;
import android.view.View;

public class MainActivity extends Activity {

    private Myconn conn;
    private Messenger messenger;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Intent intent = new Intent("fmy.asd.asd");
        intent.setPackage("com.exa2mple.messengerserverdemo3");
        conn = new Myconn();
        bindService(intent, conn, Context.BIND_AUTO_CREATE);
    }

    class Myconn implements ServiceConnection{



        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
        messenger = new Messenger(service);

        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
            // TODO Auto-generated method stub

        }

    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    Messenger myMessenger = new Messenger(new Handler(){

        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case 2:
                Log.e("fmy", "客户端收到消息:"+2);
                break;

            default:
                break;
            }
        }

    });
    public void click(View v){
        Message obtain = Message.obtain();
        obtain.what=1;
        try {
            obtain.replyTo = myMessenger;
            messenger.send(obtain);
        } catch (RemoteException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.exa2mple.messengerclientdemo3"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>