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我想在某些事件（按下按钮等）上更新片段视图层次结构

这是我的片段代码：

public class MyFragment extends Fragment {
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) 
    {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_categories_preview, container, false);
    }

    private void updateMainView()
    {
        LayoutInflater inflater = (LayoutInflater)  this.getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);   

        LinearLayout container = (LinearLayout) this.getView().findViewById(R.id.images_preview_container);
        container.removeAllViews();

        int layoutId = R.layout.list_preview;
        int cellLayoutId = R.layout.list_image_view;

        resultView = (ListView) inflater.inflate(layoutId, null);
        resultView.setAdapter(new ImagesListAdapter(inflater, cellLayoutId, this.imagesList));
        resultView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); 
        container.addView(resultView);
    }

    // Other functions
    // ...
}

按下按钮时调用函数 updateMainView()。视图未出现在片段中。

我尝试添加空的彩色视图：

View test = new View(this.getActivity());
test.setBackgroundColor(0xFFFF0000);
test.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
container.addView(test);

没有结果。

我做错了什么？

4

0 回答 0