Android Services设置ProgressBar（进度条的值）

Services实现效果：

开启服务方法：

startService(intent);

关闭服务方法：

stopService(intent);

服务执行完毕后自动调用onDestroy方法

stopSelf();

//继承Service
package com.example.g160628_android_23_services1;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.SystemClock;
import android.support.annotation.IntDef;
import android.support.annotation.Nullable;
import android.util.Log;
import android.widget.ProgressBar;

/**
 * Created by Administrator on 2017/7/14.
 */

public class MyServices extends Service {
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Log.i("test","onCreate");
    }

    @Override
    public int onStartCommand(Intent intent,int flags, int startId) {
          new MyThread(intent,startId).start();
        Log.i("test","onStartCommand");
        return Service.START_STICKY;
    }

    class MyThread extends Thread{
        private int startId;
        private  Intent intent;

        public MyThread(Intent intent,int startId){
            this.startId=startId;
            this.intent=intent;
        }


        Handler handler=new Handler(){
            @Override
            public void handleMessage(Message msg) {
                int i=msg.what;
                MainActivity.progressBar.setProgress(i);
            }
        };

        @Override
        public void run() {
            for (int i =1; i <=100 ; i++) {
                handler.sendEmptyMessage(i);
                SystemClock.sleep(200);
                Log.i("test","   "+i);
            }
            //服务执行完毕后自动调用onDestroy方法
            stopSelf(startId);
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.i("test","onDestroy");
    }
}

//主actity
package com.example.g160628_android_23_services1;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;

public class MainActivity extends AppCompatActivity {

    private Intent intent;
    public static  ProgressBar progressBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);
        intent = new Intent(this,MyServices.class);
    }

    //开始执行
    public void start(View view){
        startService(intent);
    }

    //关闭
    public void stop(View view){
        stopService(intent);
    }
}