Question

我在这里尝试了其他解决方案，但遗憾的是无法做到！我是Android新手，几乎完成了我的应用程序，但我被困在这里。

我想要做的就是点击Home Fragment中的 proceed 按钮，它会移动到下一个SGPA片段。

这就是您的代码现在的样子：

public class home extends Fragment {

//String Values For Courses and Semesters
String [] courses = {"BBA","BCA","B.Com Honours","B.Ed","B & I"};
String [] semesters = {"First", "Second", "Third", "Fourth", "Fifth", "Sixth"};
public home() {
    // Required empty public constructor
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    //Course Spinner
    View c = inflater.inflate(R.layout.home, container, false);
    Spinner courseSpinner = (Spinner) c.findViewById(R.id.courses);
    ArrayAdapter<String> LTRadapter = new ArrayAdapter<>(this.getActivity(), android.R.layout.simple_spinner_item, courses);
    LTRadapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
    courseSpinner.setAdapter(LTRadapter);

    //Semester Spinner
    Spinner Spinner = (Spinner) c.findViewById(R.id.semester);
    ArrayAdapter<String> LTRadapter1 = new ArrayAdapter<>(this.getActivity(), android.R.layout.simple_spinner_item, semesters);
    LTRadapter1.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
    Spinner.setAdapter(LTRadapter1);

    //Proceed Button
    Button b = (Button) c.findViewById(R.id.proceedbtn);
    b.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Fragment fragment = null;
                fragment = new sgpa();
                replaceFragment(fragment);
        }
    });
    return c;
}
public void replaceFragment(Fragment someFragment) {
    FragmentTransaction transaction = getFragmentManager().beginTransaction();
    transaction.replace(R.id.sgpaFragment, someFragment);
    transaction.addToBackStack(null);
    transaction.commit();
}

}

Answer 1

<强>解决方案

只要确保你给你的主片段一个id，所以你可以替换它，你在replaceFragment方法中有正确的想法，只是不做正确的交易！

public void replaceFragment(Fragment someFragment) {
   FragmentTransaction transaction = getFragmentManager().beginTransaction();

    transaction.replace(R.id.home, someFragment);
    transaction.addToBackStack(null);
    transaction.commit();
}

如何更改按钮上的片段单击

1 个答案: