android - 继承一个BaseAdapter类后重写了一些方法，但是这些方法在父类中找不到，这是为什么？

Question

继承BaseAdapter类

class MyAdapter extends BaseAdapter{

        @Override
        public int getCount() {
            return 0;
        }

        @Override
        public Object getItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            return null;
        }
    }

这是父类中的方法

Answer 1

Because these methods are shown in BaseAdapter从它的父类或者实现接口中继承来的，需要开启Show inherited才能在Structure.

Answer 2

The guide package is wrong.

Answer 3

BaseAdapter是个抽象类，实现了ListAdapter接口，getCount、getItem这几个方法都在ListAdapter接口里，但是BaseAdapter没写具体实现，所以你要继承BaseAdapterYou must write the implementation of these methods.

Answer 4

Methods in subclasses cannot be found in the parent class of course, they are not the same class. Methods in the parent class can be found in the child class.