Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/java/338.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Java RecyclerView.Adapter中的函数viewholder类_Java_Android_Android Recyclerview - Fatal编程技术网

Java RecyclerView.Adapter中的函数viewholder类

Java RecyclerView.Adapter中的函数viewholder类,java,android,android-recyclerview,Java,Android,Android Recyclerview,RecyclerView.Adapter public static class ViewHolder extends RecyclerView.ViewHolder { public View mView; public TextView textView; //Constructor public ViewHolder(View v) { super(v);

RecyclerView.Adapter

public static class ViewHolder extends RecyclerView.ViewHolder {

            public View mView;
            public TextView textView;

            //Constructor
            public ViewHolder(View v) {

                super(v);
                textView = v.findViewById(android.R.id.text1);
                mView = v;
            }
        }

我不明白这段代码的功能是什么,它使什么成为可能,它使用了什么?

它不是一个函数,它是一个内部静态类,只有一个构造函数,您只需在创建它时执行所有需要的操作(例如v.findViewById(android.R.id.text1))然后它将被传递给您的RecyclerView适配器,使该类成为非静态外部类,因为该类的实体通常通过您将在onBindViewHolder()中找到的holder对象进行访问在创建项目的对象数量时,将创建回收器视图adpater和该类的相等数量的对象,该类用于充气、添加和访问recylerview的每个项目