java - 在多个类中重用 Asynctask

Question

我有两个不同的异步任务。一个用于发出 GET 请求，另一个用于发出 POST 请求。

在我的应用程序中，我必须发出多个请求，因此我希望能够重用我编写的代码。

public static class performGetRequest extends AsyncTask<String, Void, String> {

    ProgressDialog progress;
    Activity activity;
    Boolean progressBarRequired;

    public FragmentDelivery.GetResponse delegate = null;//Call back interface

    public performGetRequest(Boolean progressBarNeeded, Activity act, FragmentDelivery.GetResponse asyncResponse) {
        delegate = asyncResponse;//Assigning call back interfacethrough constructor
        activity = act;
        progressBarRequired = progressBarNeeded;
    }

使用此代码，我只能从 FragmentDelivery fragment 调用此异步任务。我如何从其他类中调用这个类？

非常感谢。

Answer 1

只需创建您自己的界面即可。

public static interface PerformInterface {
public void mycallback();
}
public static class performGetRequest extends AsyncTask<String, Void, String> {

    ProgressDialog progress;
    Activity activity;
    Boolean progressBarRequired;

    public PerformInterface delegate = null;//Call back interface

    public performGetRequest(Boolean progressBarNeeded, Activity act, PerformInterface asyncResponse) {
        delegate = asyncResponse;//Assigning call back interfacethrough constructor
        activity = act;
        progressBarRequired = progressBarNeeded;
    }
}

并通过您想要的任何其他类来实现它。

例如

extends Activity implements PerformInterface {

///.... 
@Override
public void mycallback() {
//your code
}
}

以同样的方式，您甚至可以覆盖 FragmentDelivery.GetResponse