首先看下效果图：
蓝颜色线圈起来的一块为ListView。
蓝色圈里面的不同颜色分别代表不同布局，一共为4个布局。
其实我们实现起来也很简单，我先简单说下步骤：
1.在布局文件中准备你需要的布局
2.新建一个类继承与BaseAdapter，并重写里面的方法
3.根据布局的多少创建各自的ViewHolder，有3个布局就创建3个ViewHolder
4.在适配器中重写getItemViewType(int position) 和 getViewTypeCount()方法，我简单说下这两个方法getItemViewType方法里面的position是每个item的位置，我们通常来判断这个position的位置来返回具体是哪个布局，但是这里返回结果的时候有一个坑，它是从0开始的如果你直接从1开始就会造成数组越界异常，这里可能说的太笼统不太懂，不要急一步一步的给你介绍，举一个简单的例子，比如你一共有3个布局，在listView中就要在不同的位置显示这3中布局，这时候它return的顺序应该是0,1,2，如果你没有从0开始，直接返回1,2,3的话，一定是会造成数组越界的。然后getViewTypeCount这个方法就是用来返回你布局的总数的。
5.在getView中根据getItemViewType的返回值，进行判断加载不同的布局
废话不多说，直接上代码：
package com.bc.listviewlayouts;
import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
/**
* 作者：lyh on 2017/8/30 14:41
* QQ：129929684
* 邮箱：1299259684@qq.com
*/
public class ListViewAdapter extends BaseAdapter {
private Context mContext;
private final int TYPE_1 = 0;
private final int TYPE_2 = 1;
private final int TYPE_3 = 2;
private final int TYPE_DEFAULT = 3;
private final int TYPE_COUNT = 4;
public ListViewAdapter(Context mContext) {
this.mContext = mContext;
}
@Override
public int getCount() {
return 10;
}
@Override
public Object getItem(int i) {
return "";
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public int getItemViewType(int position) {
switch (position) {
case 0:
return TYPE_1;
case 1:
case 3:
case 5:
return TYPE_2;
case 2:
case 4:
case 8:
case 9:
return TYPE_3;
default:
return TYPE_DEFAULT;
}
}
/**
*
* @return 一共有几个布局就返回几
*/
@Override
public int getViewTypeCount() {
return TYPE_COUNT;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolderOne viewHolderOne = null;
ViewHolderTwo viewHolderTwo = null;
ViewHolderThree viewHolderThree = null;
ViewHolderDefault viewHolderDefault = null;
int type = getItemViewType(i);
if (view == null) {
LayoutInflater inflater = LayoutInflater.from(mContext);
switch (type) {
case TYPE_1:
viewHolderOne = new ViewHolderOne();
view = inflater.inflate(R.layout.listview_main_item01, viewGroup, false);
viewHolderOne.tv_listView_item01 = view.findViewById(R.id.tv_listView_item01);
viewHolderOne.iv_listView_item01 = view.findViewById(R.id.iv_listView_item01);
view.setTag(viewHolderOne);
break;
case TYPE_2:
viewHolderTwo = new ViewHolderTwo();
view = inflater.inflate(R.layout.listview_main_item02, viewGroup, false);
viewHolderTwo.tv_listView_item02 = view.findViewById(R.id.tv_listView_item02);
viewHolderTwo.tv2_listView_item02 = view.findViewById(R.id.tv2_listView_item02);
view.setTag(viewHolderTwo);
break;
case TYPE_3:
viewHolderThree = new ViewHolderThree();
view = inflater.inflate(R.layout.listview_main_item03, viewGroup, false);
viewHolderThree.tv_listView_item03 = view.findViewById(R.id.tv_listView_item03);
viewHolderThree.iv_listView_item03 = view.findViewById(R.id.iv_listView_item03);
viewHolderThree.iv2_listView_item03 = view.findViewById(R.id.iv2_listView_item03);
view.setTag(viewHolderThree);
break;
default:
viewHolderDefault = new ViewHolderDefault();
view = inflater.inflate(R.layout.listview_main_item_default, viewGroup, false);
viewHolderDefault.tv_listView_item_default = view.findViewById(R.id.tv_listView_item_default);
view.setTag(viewHolderDefault);
}
} else {
switch (type) {
case TYPE_1:
viewHolderOne = (ViewHolderOne) view.getTag();
break;
case TYPE_2:
viewHolderTwo = (ViewHolderTwo) view.getTag();
break;
case TYPE_3:
viewHolderThree = (ViewHolderThree) view.getTag();
break;
default:
viewHolderDefault = (ViewHolderDefault) view.getTag();
}
}
switch (type) {
case TYPE_1:
viewHolderOne.tv_listView_item01.setText("我是第一种布局");
viewHolderOne.tv_listView_item01.setTextColor(Color.RED);
break;
case TYPE_2:
viewHolderTwo.tv_listView_item02.setText("我是第二种布局的头部");
viewHolderTwo.tv_listView_item02.setTextColor(Color.GREEN);
viewHolderTwo.tv2_listView_item02.setText("我是第二种布局的尾部");
viewHolderTwo.tv2_listView_item02.setTextColor(Color.GREEN);
break;
case TYPE_3:
viewHolderThree.tv_listView_item03.setText("我是第三种布局");
viewHolderThree.tv_listView_item03.setTextColor(Color.BLUE);
break;
default:
viewHolderDefault.tv_listView_item_default.setText("我是默认布局，默认样式");
}
return view;
}
}