无法理解布局充气器?它的作用是什么?为什么我们使用它?

Can't able to understand layout inflater?What it does? and why we use it?

我看不懂layout inflater的逻辑 什么是在 adapetr class.

中使用布局 inflater
public class WordAdapter extends ArrayAdapter<Word> {


    public WordAdapter(Activity context, ArrayList<Word> words) {
        // Here, we initialize the ArrayAdapter's internal storage for the context and the list.
        // the second argument is used when the ArrayAdapter is populating a single TextView.
        // Because this is a custom adapter for two TextViews and an ImageView, the adapter is not
        // going to use this second argument, so it can be any value. Here, we used 0.
        super(context, 0, words);

    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        // Check if the existing view is being reused, otherwise inflate the view
        View listItemView = convertView;
        if (listItemView == null) {
            listItemView = LayoutInflater.from(getContext()).inflate(R.layout.list_item, parent, false);
        }

您可以通过 Android Official Documentation.

LayoutInflater(将 XML 布局文件转换为相应的 ViewGroups 和 Widgets)以及它在 Fragment 的 onCreateView() 方法中膨胀视图的方式。

LayoutInflater 是一个 class 用于将布局 XML 文件实例化到其相应的视图对象中,可以在 java 程序中使用。