android Service组件的基本使用

蓝牙服务编程指南

最新推荐文章于 2021-08-12 17:51:44 发布

原创最新推荐文章于 2021-08-12 17:51:44 发布 · 177 阅读

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#android service 基础

本文详细介绍了一个基于Android平台的蓝牙服务编程实例。通过一个具体的BluetoothService类，展示了如何创建并实现服务端与客户端的连接，包括服务注册、绑定、启动及断开等关键步骤。同时，也介绍了在Activity中如何调用服务，实现与蓝牙设备的数据交互。

1. service程序编写

public class BluetoothService extends Service {

private ICallBack iCallBack;

private IBinder binder = new BluetoothService.LocalBinder();

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

   public class LocalBinder extends Binder {
       public BluetoothService getService() {
           return BluetoothService.this;
       }
   }

   @Override
   public void onCreate() {
       // TODO Auto-generated method stub
       super.onCreate();

}

    @Override
   public int onStartCommand(Intent intent, int flags, int startId) {
       // TODO Auto-generated method stub
       return super.onStartCommand(intent, flags, startId);

}

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

2. activity中调用

public BluetoothService mBluetoothService;

2.1 service的连接与断开

private ServiceConnection connection = new ServiceConnection() {

@Override
public void onServiceDisconnected(ComponentName name) {

mBluetoothService = null;
}

@Override
public void onServiceConnected(ComponentName name, IBinder service) {

           mBluetoothService = ((BluetoothService.LocalBinder) service).getService();
           Log.i("huzh", "onServiceConnected");
       }
   };

2.2 启动service

Intent intent = new Intent(this, BluetoothService.class);
startService(intent);
getApplicationContext().bindService(intent, connection, Context.BIND_AUTO_CREATE);