android学习笔记--零碎知识点2

listview 实现的简单过程

1.）listView对应的id : test_listview

2.)item对应的文件：list_item.xml

3.)适配器adpter

ListView lv = (ListView)findViewById(R.id.list);

lv.setAdapter(new myAdapter()):// myAdapter extends BaseAdapter

private class myAdapter extents BaseAdapter{

public int getCount(){

return arrayList.size():

}

...

public View getView(int position, View currentView,ViewGroup viewGroup){

Person person = listPerson.get(position);

View view = View.inflate(getApplicationContext(),R.layout.list_item,null);

TextView t = (TextView)view.findViewById(R.id.name);

t.setText(person.getName());

return view;

}

}

超简单的listView实现就出现了

当然优化的话  后续