Android：AsyncTask - 如何获得结果？

Question

我想要： 使用 Jsoup lib 解析 url，从 url 中获取一些数据，然后在另一种方法中使用它们。

@Override
protected void onPostExecute(Object result) {
    // TODO Auto-generated method stub
    super.onPostExecute(result);

    if(pdialog.isShowing())
        pdialog.cancel();
}

@Override
protected void onPreExecute()
{
    super.onPreExecute();

    pdialog = new ProgressDialog(context);
    pdialog.setCancelable(false);
    pdialog.setMessage("Loading");
    pdialog.show();
}

@Override
protected Object doInBackground(Object... params) {

    try {
        doc = Jsoup.connect("http://www.interdag.ru/afisha").get();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return null;
}

我怎样才能得到 Jsoup.connect().get() 结果？

---

此代码返回错误：

12-29 06:34:45.214: E/WindowManager(1462): Activity com.example.afisha.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40fc2db8 that was originally added here
12-29 06:34:45.214: E/WindowManager(1462): android.view.WindowLeaked: Activity com.example.afisha.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40fc2db8 that was originally added here
12-29 06:34:45.214: E/WindowManager(1462):  at android.view.ViewRootImpl.<init>(ViewRootImpl.java:343)
12-29 06:34:45.214: E/WindowManager(1462):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:245)
12-29 06:34:45.214: E/WindowManager(1462):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:193)
12-29 06:34:45.214: E/WindowManager(1462):  at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:118)
12-29 06:34:45.214: E/WindowManager(1462):  at android.view.Window$LocalWindowManager.addView(Window.java:537)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.Dialog.show(Dialog.java:274)
12-29 06:34:45.214: E/WindowManager(1462):  at com.example.afisha.GetData.onPreExecute(GetData.java:46)
12-29 06:34:45.214: E/WindowManager(1462):  at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:561)
12-29 06:34:45.214: E/WindowManager(1462):  at android.os.AsyncTask.execute(AsyncTask.java:511)
12-29 06:34:45.214: E/WindowManager(1462):  at com.example.afisha.GetData.getData(GetData.java:65)
12-29 06:34:45.214: E/WindowManager(1462):  at com.example.afisha.MainActivity.onCreate(MainActivity.java:23)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.Activity.performCreate(Activity.java:4465)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1919)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.ActivityThread.access$600(ActivityThread.java:122)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146)
12-29 06:34:45.214: E/WindowManager(1462):  at android.os.Handler.dispatchMessage(Handler.java:99)
12-29 06:34:45.214: E/WindowManager(1462):  at android.os.Looper.loop(Looper.java:137)
12-29 06:34:45.214: E/WindowManager(1462):  at android.app.ActivityThread.main(ActivityThread.java:4340)
12-29 06:34:45.214: E/WindowManager(1462):  at java.lang.reflect.Method.invokeNative(Native Method)
12-29 06:34:45.214: E/WindowManager(1462):  at java.lang.reflect.Method.invoke(Method.java:511)
12-29 06:34:45.214: E/WindowManager(1462):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-29 06:34:45.214: E/WindowManager(1462):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-29 06:34:45.214: E/WindowManager(1462):  at dalvik.system.NativeStart.main(Native Method)

Answer 1

doc = Jsoup.connect("http://www.interdag.ru/afisha").get();

替换为

return Jsoup.connect("http://www.interdag.ru/afisha").get();

执行后返回的对象是你可以使用的结果。