ListViewCommonAdapter

optimized and common BaseAdapter include ViewHolder convertView.

ViewHolder use SparseArray mViews to cache itemView;

mListView.setAdapter(new MyAdapter(MainActivity.this, 3,R.layout.item_view)); 3 is @Override public int getCount() { return mNum; } it can be List.size() replace;

only this---> ((TextView)holder.getView(R.id.tv_title)).setText("孙悟空"); ((TextView)holder.getView(R.id.tv_content)).setText("这是大师兄");

		         we can use         Chain programming     because return this;