Question

我创建了一个像图库之类的android应用，它使用片段标签提供了一些图像

功能正常，但是当我在代码中添加setOnItemClickListener时显示错误

错误：无法解析方法'getApplicationContext（）

您还可以检查错误的屏幕截图：http://prntscr.com/kc6zay

请查看我的代码并指导我如何解决此问题。

    public class CallFragment extends Fragment {

    @Override
    public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        setHasOptionsMenu(true);
        View view = inflater.inflate(R.layout.fragment_call,container,false);
        GridView gridView = (GridView) view.findViewById(R.id.gridview);
        gridView.setAdapter(new ImageAdapter(view.getContext())); // uses the view to get the context instead of getActivity().

        // Listening to GridView item click
        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

                // Launch ImageViewPager.java on selecting GridView Item
                Intent i = new Intent(getApplicationContext(), ImageViewPager.class);

                // Show a simple toast message for the item position
                //Toast.makeText(CallFragment.this, "" + position, Toast.LENGTH_SHORT).show();

                // Send the click position to ImageViewPager.java using intent
                i.putExtra("id", position);

                // Start ImageViewPager
                startActivity(i);
            }
        });
    }



  //  public View onCreateView(LayoutInflater inflater, ViewGroup container,
  //                           Bundle savedInstanceState) {
        // Inflate the layout for this fragment
   //     setHasOptionsMenu(true);
   //     return inflater.inflate(R.layout.fragment_call, container, false);
  //  }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.menu_calls, menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == R.id.action_call) {
            Toast.makeText(getActivity(), "Clicked on " + item.getTitle(), Toast.LENGTH_SHORT)
                    .show();
        }
        return true;
    }
}

Answer 1

尝试一下：

在CallFragment

中添加以下代码

private Context context;

@Override
public void onAttach(Context context) {
    super.onAttach(context);
    this.context = context;
}

在您的onItemClick

            Intent i = new Intent(context, ImageViewPager.class);

Answer 2

您不以getApplicationContext开始活动。
使用getActivity()：

Intent i = new Intent(getActivity(), ImageViewPager.class);

无法解析GridView项单击中的方法'getApplicationContext（）

2 个答案: