如何从另一个类调用活动中的方法？

问题描述：

public class BrokerCommunication {

    public String BrokerCommRequest(String url)
    {
        try
        {

        }
        catch (Exception e) {
            // TODO: handle exception
        }

        return "";
    }

    public String BrokerRequest(String _reqUrl,String _reqType)
    {
        try
        {

        }
        catch (Exception e) {
            // TODO: handle exception
        }

        return "";
            
    }
}

所以如何从LoginActivity.java中调用此BrokerRequest

我的尝试：

So how to I Call this BrokerRequest from LoginActivity.java

What I have tried:

BrokerCommunication inst = new BrokerCommunication();
              inst.BrokerRequest();

我试过这样但显示更改签名错误。

I tried like this but its showing error of change signature.

答

您当前调用该方法的方式的问题是您没有传递任何参数： BrokerRequest 接受两个String参数，但是您执行 inst.BrokerRequest（）所以你没有传递任何东西。

做这样的事情：

The problem with the way you currently call the method, is that you don't pass any arguments: BrokerRequest takes two String arguments, but you do inst.BrokerRequest() so you aren't passing anything.

Do something like this:

BrokerCommunication inst = new BrokerCommunication();
inst.BrokerRequest("<your req URL here>", "<your req type here>");

如何从另一个类调用活动中的方法？

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