Android(3_2)-----模仿微信界面：通讯录页面

自定义适配器：

    private class myBaseAdapter extends BaseAdapter {
        private ArrayList<Contect> list;
        public myBaseAdapter() {
        }
        public myBaseAdapter(ArrayList<Contect> list) {
            this.list = list;
        }

        @Override
        public int getCount() {
            return list.size();
        }

        @Override
        public Object getItem(int position) {
            return list.get(position);
        }

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

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            Contect contect= (Contect) getItem(position);//传进来的list的某一项
            if(convertView==null){
                LayoutInflater inflater=LayoutInflater.from(getContext());
                convertView=inflater.inflate(R.layout.contect_item,parent,false);
            }
            TextView letter_Contect=convertView.findViewById(R.id.letter_Contect);
            ImageView contect_Head=convertView.findViewById(R.id.contect_Head);
            TextView contect_Name=convertView.findViewById(R.id.contect_Name);

            letter_Contect.setText(contect.getLetter());
            contect_Head.setImageResource(contect.getHead());
            contect_Name.setText(contect.getName());
            return convertView;
        }
    }

重点是getView()方法:

            if(convertView==null){
                LayoutInflater inflater=LayoutInflater.from(getContext());
                convertView=inflater.inflate(R.layout.contect_item,parent,false);
            }

BaseAdapter：https://blog.csdn.net/yelbosh/article/details/7831812