React：AppStore监听器必须是一个函数（Flux Facebook）

Question

我收到错误＆＃34; Uncaught TypeError：listener必须是一个函数＆＃34; 我不知道自己做错了什么。我花了很多时间在这上面，但没有到达任何地方。

  componentDidMount() {
    // Called after react has rendered the HTML in the DOM.
    AppStore.addChangeListener(this.handleChange);
    console.log(AppStore.addChangeListener(this.handleChange));
  }

    handleChange() {
    debugger;
    this.forceUpdate();
  }

我的组件看起来像这样

public class ConnectThread extends Thread{
    private BluetoothSocket bTSocket;

    public boolean connect(BluetoothDevice bTDevice, UUID mUUID) {
        BluetoothSocket temp = null;
        try {
            temp = bTDevice.createRfcommSocketToServiceRecord(mUUID);
        } catch (IOException e) {
            Log.d("CONNECTTHREAD","Could not create RFCOMM socket:" + e.toString());
            return false;
        }
        try {
            bTSocket.connect();
        } catch(IOException e) {
            Log.d("CONNECTTHREAD","Could not connect: " + e.toString());
            try {
                bTSocket.close();
            } catch(IOException close) {
                Log.d("CONNECTTHREAD", "Could not close connection:" + e.toString());
                return false;
            }
        }
        return true;
    }

    public boolean cancel() {
        try {
            bTSocket.close();
        } catch(IOException e) {
            Log.d("CONNECTTHREAD","Could not close connection:" + e.toString());
            return false;
        }
        return true;
    }
}