Android -- 回呼函數的使用

標籤：

public class CallBackTools {    //介面    public interface OnListener {        void execute();    }        //聲明介面    OnListener callBack;    //被調用，執行介面實現    public void callListen() {        callBack.execute();    }    //外部進行介面實現    public void setCallBackListener(OnListener listener) {        this.callBack = listener;    }}

@Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        final CallBackTools callBackTools = new CallBackTools();        callBackTools.setCallBackListener(new CallBackTools.OnListener() {            @Override            public void execute() {                // do waht you want when this callback be called                Log.e("callback","success");            }        });        findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                callBackTools.callListen();            }        });    }

Android -- 回呼函數的使用