service 及button监听的重复利用

来源：互联网发布：数据库存储过程代码编辑：程序博客网时间：2024/05/10 06:29

public class MyService extends Service {       private static final String TAG = "MyService";         private MyBinder mBinder=new MyBinder();      @Override      public IBinder onBind(Intent arg0) {          // TODO Auto-generated method stub            Log.e(TAG, "start IBinder~~~");            return mBinder;      }      @Override      public void onCreate() {          // TODO Auto-generated method stub           Log.e(TAG, "start onCreate~~~");            super.onCreate();      }      @Override      public void onDestroy() {          // TODO Auto-generated method stub            Log.e(TAG, "start onDestroy~~~");            super.onDestroy();      }      @Override      public int onStartCommand(Intent intent, int flags, int startId) {          // TODO Auto-generated method stub           Log.e(TAG, "start onStartCommand~~~");            return super.onStartCommand(intent, flags, startId);      }      @Override      public boolean onUnbind(Intent intent) {          // TODO Auto-generated method stub           Log.e(TAG, "start onUnbind~~~");            return super.onUnbind(intent);      }      public String getSystemTime(){              /*Time t=new Time();           t.setToNow();*/            SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");            return format.format(new Date());      }       public class MyBinder extends Binder{              public MyService getService(){                  return MyService.this;              }       }          }

分别实现了他的相应的生命周期方法，然后修改主activity为：

[java] view plaincopypublic class ServiceDemoActivity extends Activity implements OnClickListener{      /** Called when the activity is first created. */       private MyService mMyService;       private TextView mTextView;       private Context mContext;       private Button startServiceButton;         private Button stopServiceButton;         private Button bindServiceButton;         private Button unbindServiceButton;               //这里需要用到ServiceConnection在Context.bindService和context.unBindService()里用到        private ServiceConnection mServiceConnection = new ServiceConnection() {            //当我bindService时，让TextView显示MyService里getSystemTime()方法的返回值               @Override          public void onServiceConnected(ComponentName name, IBinder service) {              // TODO Auto-generated method stub               mMyService = ((MyService.MyBinder)service).getService();                mTextView.setText("I am frome Service :" + mMyService.getSystemTime());                   }            @Override          public void onServiceDisconnected(ComponentName name) {              // TODO Auto-generated method stub                        }        };      @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.main);          setupViews();        }      private void setupViews(){          mContext=this;          mTextView=(TextView) this.findViewById(R.id.text);                       startServiceButton = (Button)findViewById(R.id.startservice);              stopServiceButton = (Button)findViewById(R.id.stopservice);              bindServiceButton = (Button)findViewById(R.id.bindservice);              unbindServiceButton = (Button)findViewById(R.id.unbindservice);                  startServiceButton.setOnClickListener(this);              stopServiceButton.setOnClickListener(this);              bindServiceButton.setOnClickListener(this);              unbindServiceButton.setOnClickListener(this);        }      @Override      public void onClick(View v) {          // TODO Auto-generated method stub           if(v == startServiceButton){                    Intent i  = new Intent();                    i.setClass(ServiceDemoActivity.this, MyService.class);                    mContext.startService(i);                }else if(v == stopServiceButton){                    Intent i  = new Intent();                    i.setClass(ServiceDemoActivity.this, MyService.class);                    mContext.stopService(i);                }else if(v == bindServiceButton){                    Intent i  = new Intent();                    i.setClass(ServiceDemoActivity.this, MyService.class);                    mContext.bindService(i, mServiceConnection, BIND_AUTO_CREATE);                }else{                    mContext.unbindService(mServiceConnection);                }        }  }

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