使用listview多佈局會出現一點問題：

由於多個item佈局給單一的item佈局是不一樣的，使用起來，contentview的複用會出現問題。

避免出現問題的有這幾個方法：

1.重寫 getViewTypeCount() – 該方法返回多少個不同的佈局

2.重寫 getItemViewType(int) – 根據position返回相應的Item

3.根據view item的型別，在getView中建立正確的convertView

MainActivity

import android.content.Context;
import android.support.v7.app.AppCompatActivity;
 
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
 
import android.widget.TextView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
    ListView listView;
MyAdapter listAdapter;
ArrayList<String> listString;
@Override
public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
setContentView(R.layout.activity_main);
listView = (ListView) this.findViewById(R.id.listview);
listString = new ArrayList<String>();
        for (int i = 0; i < 100; i++) {
            listString.add(Integer.toString(i));
}
        listAdapter = new MyAdapter(this);
listView.setAdapter(listAdapter);
}

    public class MyAdapter extends BaseAdapter {
        Context mContext;
LinearLayout linearLayout = null;
LayoutInflater inflater;
TextView tex;
        final int VIEW_TYPE = 3;
        final int TYPE_1 = 0;
        final int TYPE_2 = 1;
        final int TYPE_3 = 2;
        public MyAdapter(Context context) {
            // TODO Auto-generated constructor stub
mContext = context;
inflater = LayoutInflater.from(mContext);
}

        @Override
public int getCount() {
            // TODO Auto-generated method stub
return listString.size();
}

        //每個convert view都會呼叫此方法，獲得當前所需要的view樣式
@Override
public int getItemViewType(int position) {
            // TODO Auto-generated method stub
int p = position % 6;
            if (p == 0)
                return TYPE_1;
            else if (p < 3)
                return TYPE_2;
            else if (p < 6)
                return TYPE_3;
            else
                return TYPE_1;
}

        //返回三個不同的佈局
@Override
public int getViewTypeCount() {
            // TODO Auto-generated method stub
return 3;
}

        @Override
public Object getItem(int arg0) {
            // TODO Auto-generated method stub
return listString.get(arg0);
}

        @Override
public long getItemId(int position) {
            // TODO Auto-generated method stub
return position;
}

        //建立正確的contentview複用
@Override
public View getView(int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub
viewHolder1 holder1 = null;
viewHolder2 holder2 = null;
viewHolder3 holder3 = null;
            int type = getItemViewType(position);
//無convertView，需要new出各個控制元件
if (convertView == null) {
                Log.e("convertView = ", " NULL");
//按當前所需的樣式，確定new的佈局
switch (type) {
                    case TYPE_1:
                        convertView = inflater.inflate(R.layout.listitem1, parent, false);
holder1 = new viewHolder1();
holder1.textView = (TextView) convertView.findViewById(R.id.textview1);
holder1.checkBox = (CheckBox) convertView.findViewById(R.id.checkbox);
Log.e("convertView = ", "NULL TYPE_1");
convertView.setTag(holder1);
                        break;
                    case TYPE_2:
                        convertView = inflater.inflate(R.layout.listitem2, parent, false);
holder2 = new viewHolder2();
holder2.textView = (TextView) convertView.findViewById(R.id.textview2);
Log.e("convertView = ", "NULL TYPE_2");
convertView.setTag(holder2);
                        break;
                    case TYPE_3:
                        convertView = inflater.inflate(R.layout.listitem3, parent, false);
holder3 = new viewHolder3();
holder3.textView = (TextView) convertView.findViewById(R.id.textview3);
holder3.imageView = (ImageView) convertView.findViewById(R.id.imageview);
Log.e("convertView = ", "NULL TYPE_3");
convertView.setTag(holder3);
                        break;
}
            } else {
                //有convertView，按樣式，取得不用的佈局
switch (type) {
                    case TYPE_1:
                        holder1 = (viewHolder1) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_1");
                        break;
                    case TYPE_2:
                        holder2 = (viewHolder2) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_2");
                        break;
                    case TYPE_3:
                        holder3 = (viewHolder3) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_3");
                        break;
}
            }

            //設定資源
switch (type) {
                case TYPE_1:
                    holder1.textView.setText(Integer.toString(position));
holder1.checkBox.setChecked(true);
                    break;
                case TYPE_2:
                    holder2.textView.setText(Integer.toString(position));
                    break;
                case TYPE_3:
                    holder3.textView.setText(Integer.toString(position));
holder3.imageView.setBackgroundResource(R.mipmap.ic_launcher);
                    break;
}

            return convertView;
}
    }

    //各個佈局的控制元件資源
class viewHolder1 {
        CheckBox checkBox;
TextView textView;
}

    class viewHolder2 {
        TextView textView;
}

    class viewHolder3 {
        ImageView imageView;
TextView textView;
}


}

activity_main

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context="com.example.listview_more.MainActivity">
    <ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
></ListView>
</RelativeLayout>

listitem1

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
    <TextViewandroid:id="@+id/textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="hahaahha"
/>
    <CheckBox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>

listitem2

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
    <TextViewandroid:id="@+id/textview2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1111111"
/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
    <TextViewandroid:id="@+id/textview3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="888888888"
/>
    <ImageView
android:id="@+id/imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>