BindService

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一样是两个button按钮：

<Button         android:id="@+id/bt_kaishi"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="TableOne"        /><Button         android:id="@+id/bt_jieshu"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="TableTwo"        />

写一个Bind类继承Service：

public class Bind extends Service{private String tag="bindservice";@Overridepublic void onCreate() {Log.e(tag, "onCreate");super.onCreate();}  @Overridepublic IBinder onBind(Intent intent) {Log.e(tag, "onBind");return null;}@Overridepublic boolean onUnbind(Intent intent) {Log.e(tag, "onUnbind");return super.onUnbind(intent);}@Overridepublic void onDestroy() {Log.e(tag, "onDestroy");super.onDestroy();}public void getLast(){Log.e("", "下一曲");}public class MyBind extends Binder{public Bind getservice(){return Bind.this;}}}

Mainactivity:

public class MainActivity extends Activity implements OnClickListener {    private Button bt_kaishi,bt_jieshu;    private Conn conn;@Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        conn = new Conn();        initView();    }private void initView() {bt_kaishi = (Button) findViewById(R.id.bt_kaishi);bt_jieshu = (Button) findViewById(R.id.bt_jieshu);bt_kaishi.setOnClickListener(this);bt_jieshu.setOnClickListener(this);}@Overridepublic void onClick(View v) {if (R.id.bt_kaishi==v.getId()) {Intent intent = new Intent(MainActivity.this,Bind.class);bindService(intent, conn, Context.BIND_AUTO_CREATE);}else {unbindService(conn);}}//绑定服务监听private class Conn implements ServiceConnection{//绑定服务成功的监听  service:服务绑定成功后的返回值       onbund:方法的返回值@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {MyBind bind=(MyBind) service;bind.getservice().getLast();}//因为异常，绑定服务失败的监听@Overridepublic void onServiceDisconnected(ComponentName name) {}}}

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