Question

我尝试了很多我在网上找到的解决方案，但是其中任何一个都有效，我有这个代码：

public class Cambiar_ciudad extends ListFragment {

     @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.lay_cambiar_ciudad, container,
                false);

        String[] values = new String[] {"Barcelona", "Madrid", "Sevilla", "Valencia" };
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
                android.R.layout.simple_list_item_1, values);
        setListAdapter(adapter);

        return rootView;





    }
    }

该代码向我展示了List ("Barcelona", "Madrid", "Sevilla", "Valencia")我希望当我推送其中一个时，他们会将我发送到新的布局。

我是在一个非片段中完成的，它适用于此代码：

    Ciudades = new String[]{"Badajoz","Barcelona", "Madrid", "Sevilla", "Valencia"};

    ArrayAdapter<String> adapter;

    adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, Ciudades);

    ListView lv = (ListView) findViewById(R.id.listView);
    lv.setAdapter(adapter);



    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view,
                                int position, long id) {
            // When clicked, show a toast with the TextView text
            if (position == 0) {

                Intent myIntent = new Intent(view.getContext(), Menu_Principal.class);
                startActivityForResult(myIntent, 0);
            }

            if (position == 1) {

                Intent myIntent = new Intent(view.getContext(), Menu_Principal.class);
                startActivityForResult(myIntent, 0);
            }

            if (position == 2) {

                Intent myIntent = new Intent(view.getContext(), Menu_Principal.class);
                startActivityForResult(myIntent, 0);
            }
            if (position == 3) {

                Intent myIntent = new Intent(view.getContext(), Menu_Principal.class);
                startActivityForResult(myIntent, 0);
            }
            if (position == 4) {

                Intent myIntent = new Intent(view.getContext(), Menu_Principal.class);
                startActivityForResult(myIntent, 0);
            }
        }
    });

但是在ListFragment中，我不知道如何将选项与Menu_Principal.class

相关联

我希望你们中的任何人都能解决它，非常感谢！

Answer 1

将此代码放入

@Override
public void onListItemClick(ListView l, View v, int position, long id){
    Context context = getActivity();
    // When clicked, show a toast with the TextView text
    if (position == 0) {
        Intent myIntent = new Intent(context, Menu_Principal.class);
        context.startActivityForResult(myIntent, 0);
    }

    if (position == 1) {
        Intent myIntent = new Intent(context, Menu_Principal.class);
        context.startActivityForResult(myIntent, 0);
    }

    if (position == 2) {
        Intent myIntent = new Intent(context, Menu_Principal.class);
        context.startActivityForResult(myIntent, 0);
    }
    if (position == 3) {
        Intent myIntent = new Intent(context, Menu_Principal.class);
        context.startActivityForResult(myIntent, 0);
    }
    if (position == 4) {
        Intent myIntent = new Intent(context, Menu_Principal.class);
        context.startActivityForResult(myIntent, 0);
    }
}

Answer 2

现在我有了这段代码：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.lay_cambiar_ciudad, container,
            false);

    String[] values = new String[] { "Badajoz","Barcelona", "Madrid", "Sevilla", "Valencia" };
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
            android.R.layout.simple_list_item_1, values);
    setListAdapter(adapter);

    return rootView;

    @Override
    public void onListItemClick(ListView l, View v, int position, long id){
        Context context = getActivity();
        // When clicked, show a toast with the TextView text
        if (position == 0) {
            Intent myIntent = new Intent(context, Menu_Principal.class);
            startActivityForResult(myIntent, 0);
        }

        if (position == 1) {
            Intent myIntent = new Intent(context, Menu_Principal.class);
            startActivityForResult(myIntent, 0);
        }

        if (position == 2) {
            Intent myIntent = new Intent(context, Menu_Principal.class);
            startActivityForResult(myIntent, 0);
        }
        if (position == 3) {
            Intent myIntent = new Intent(context, Menu_Principal.class);
            startActivityForResult(myIntent, 0);
        }
        if (position == 4) {
            Intent myIntent = new Intent(context, Menu_Principal.class);
            startActivityForResult(myIntent, 0);
        }
    }


}
}

但它在这里给我一些错误：

(ListView l, View v, int position, long id){

ListView红色

v on red

还有一些＆＃34 ;;＆＃34;预期

错误：（35,36）错误：＆＃39 ;;＆＃39;预期

错误：（35,53）错误：＆＃39;;＆＃39;预期

错误：（35,54）错误：不是声明

错误：（35,55）错误：＆＃39;;＆＃39;预期

错误：（35,70）错误：预期

错误：（35,76）错误：不是声明

错误：（35,78）错误：＆＃39 ;;＆＃39;预期

我有一个ListFragment有一些选项，但ItemClick没有工作

2 个答案: