activity 和service通信，调用service方法

package com.evt.services;

import java.io.FileDescriptor;
import java.io.PrintWriter;

import com.evt.MyApplication;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;

public class ServicesUpload extends Service {

	// 进度条最大值
	public static final int max_progress = 100;

	// 进度条进度值
	private int progress = 0;

	public int getProgress() {
		return progress;
	}

	public void setProgress(int progress) {
		this.progress = progress;
	}

	/**
	 * 模拟下载任务，每秒钟更新一次
	 */
	public void startDownLoad() {
		Log.d(MyApplication.TAG, "开始下载");
		new Thread(new Runnable() {

			@Override
			public void run() {
				while (progress < max_progress) {
					progress += 5;
					try {
						Thread.sleep(1000);
						Log.d(MyApplication.TAG, "线程睡眠一秒钟");
					} catch (InterruptedException e) {
						e.printStackTrace();
					}

				}
			}
		}).start();
	}

	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		return new ServicesUploadBinder();
	}

	public class ServicesUploadBinder extends Binder {

		public ServicesUpload getServicesUpload() {
			return ServicesUpload.this;
		}
	}

	@Override
	protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
		// TODO Auto-generated method stub
		super.dump(fd, writer, args);
	}

	@Override
	public void onCreate() {
		// TODO Auto-generated method stub
		super.onCreate();
		Log.d(MyApplication.TAG, "上传服务启动");
	}

	@Override
	public void onDestroy() {
		// TODO Auto-generated method stub
		super.onDestroy();
		Log.d(MyApplication.TAG, "上传服务销毁");
	}

}

<!-- 上传服务 -->

        <service
            android:name="com.evt.services.ServicesUpload"
            android:enabled="true"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.evt.services.ServicesUpload" />
            </intent-filter>
        </service>

activity中：

private ServicesUpload servicesUpload; // 上传服务

Intent intent = new Intent("com.evt.services.ServicesUpload");
 bindService(intent, conn, Context.BIND_AUTO_CREATE);

ServiceConnection conn = new ServiceConnection() {

 @Override
 public void onServiceConnected(ComponentName arg0, IBinder arg1) {
 // TODO Auto-generated method stub
 servicesUpload = ((ServicesUpload.ServicesUploadBinder) arg1)
 .getServicesUpload();
 }

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

 }

 };

 @Override
 protected void onDestroy() {
 // TODO Auto-generated method stub
 unbindService(conn);
 super.onDestroy();
 }

调用方法：

servicesUpload.startDownLoad();