Listview加载单一的item 布局有时候不能完全满足业务需求，我们需要加载两种或两种以上不同的布局，实现方法很简单：
重写 getViewTypeCount() – 返回你加载 不同的布局的个数
重写 getItemViewType(int) – 根据position返回view的type id
根据view item的类型，在getView中创建正确的convertView
代码：
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView listView = (ListView) findViewById(R.id.listview);
listView.setAdapter(new ListviewAdapter());
}
class ListviewAdapter extends BaseAdapter {
@Override
public int getCount() {
return 50;
}
@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) {
View view = null;
int type = getItemViewType(position);
switch (type) {
case 0:
view = LayoutInflater.from(MainActivity.this).inflate(R.layout.listviewitem, parent, false);
TextView tv = (TextView) view.findViewById(R.id.item_tv);
tv.setText("textView" + position);
break;
case 1:
view = LayoutInflater.from(MainActivity.this).inflate(R.layout.listviewpic, parent, false);
break;
}
return view;
}
@Override
public int getViewTypeCount() {
//多少种布局
return 2;
}
@Override
public int getItemViewType(int position) {
return position % 4 == 0 ? 1 : 0;
}
}
}
运行效果，每三个item一个分隔图片
