在Android编程中无法从Fragment切换到Activity / Activity到Fragment [英] Unable to switch from Fragment to Activity / Activity to Fragment in Android Programming

问题描述

目前，我主要使用Fragments连接到Facebook。

Currently, I am mainly using Fragments to connect to Facebook.

然而，对于其他代码，我使用的是普通活动（没有碎片）。

However, for the other codes, I am using normal activites (no Fragments).

我现在的问题是，我希望有一个按钮可以从我的主页链接到片段，从片段链接到我的主页

My issue now is that I wish to have a button to link from my "Home Page" to the Fragment, and from the Fragment back to my "Home Page"

我无法这样做。

我尝试使用相同的代码在此活动之间切换，但它不起作用。

I tried to use the same code to switch between activities for this but it does not work.

有没有办法将正常活动链接到碎片和反之亦然？或者他们只能相互联系？

Is there a way to Link Normal Activities to Fragments and Vice Versa ? Or can they only link to each other ?

这是我的代码：

    public class SplashFragment extends Fragment{

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle     savedInstanceState) {
    View view = inflater.inflate(R.layout.splash, container, false);
//   return view;

    Button btnNextScreen = (Button) view.findViewById(R.id.btnNextScreen);      
//    Button btnNextScreen = (Button) findViewById(R.id.btnNextScreen);

    //Listening to button event
    btnNextScreen.setOnClickListener(new View.OnClickListener() {

      public void onClick(View arg0) {
          //Starting a new Intent
          Intent nextScreen = new Intent(**getApplicationContext()**, SecondScreenActivity.class);
            startActivity(nextScreen);

}
});

 return view;   
}
}

我在getApplicationContext（）时遇到错误。

I am getting an error at getApplicationContext().

如果我将其更改为getActivity（），他们将提示他们期望切换到片段而不是活动的另一个错误。

If I change it to getActivity(), they will prompt with another error that they are expecting to switch to a Fragment, not an activity.

感谢您的帮助！

问候，
AndroidStudent

Regards, AndroidStudent

推荐答案

如果你想从片段导航到活动，请使用此getActivity（）。

use this getActivity() if u want to navigate from fragment to activity.

Intent nextScreen = new Intent(getActivity(), SecondScreenActivity.class);
startActivity(nextScreen);

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