为ListView控件加载不同的条目

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现在布局文件内写两个不同的布局
布局1 只有文字：
<?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="horizontal"    >   <TextView       android:layout_width="wrap_content"       android:layout_height="wrap_content"             android:id="@+id/tv1"       />    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/tv2"        android:layout_marginLeft="10dp"        /></LinearLayout>布局2 文字加图片：   <?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="horizontal"    >   <TextView       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:text="啊哈哈哈"       android:id="@+id/tv1"       />    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="啊哈哈哈"        android:id="@+id/tv2"        android:layout_marginLeft="10dp"        />    <ImageView        android:layout_width="70dp"        android:layout_height="70dp"        android:id="@+id/ig"        android:background="@color/colorAccent"        android:layout_marginLeft="20dp"        /></LinearLayout>
  创建一个自定义框架 为ListView 的图片属性设置网络加载的图片
   public class MApp extends Application {     //需要在清单文件里加载name属性 需要在类里加载依赖    @Override    public void onCreate() {        super.onCreate();        ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(this).build();        ImageLoader.getInstance().init(config);        //加载自定义框架    }}

创建一个Bean类为条目添加对象：
package com.bwei.ssp.day_notlistview;/** * Created by lenovo on 2017/10/12. */public class Goods  {    private String name;    private String price;    private int imgId;    private int typeId;    //根据不同条目的需求创建不同的构造方法    public Goods(String name, String price, int typeId) {        this.name = name;        this.price = price;        this.typeId = typeId;    }    public Goods(String name, String price, int imgId, int typeId) {        this.name = name;        this.price = price;        this.imgId = imgId;        this.typeId = typeId;    }    public void setName(String name) {        this.name = name;    }    public void setPrice(String price) {        this.price = price;    }    public void setImgId(int imgId) {        this.imgId = imgId;    }    public void setTypeId(int typeId) {        this.typeId = typeId;    }    public String getName() {        return name;    }    public String getPrice() {        return price;    }    public int getImgId() {        return imgId;    }    public int getTypeId() {        return typeId;    }}

在主累里进行操作：

package com.bwei.ssp.day_notlistview;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import com.nostra13.universalimageloader.core.ImageLoader;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {  private ListView lv;    private ImageLoader instance;    //创建框架对象    private  List<Goods> list;    String imgUrl = "http://image.tianjimedia.com/uploadImages/2012/067/N80N0GUA36N0.jpg";    //创建网络图片地址    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lv=(ListView) findViewById(R.id.lv);        instance = ImageLoader.getInstance();        initData();        //在方法里进行操作    }    private void initData() {       list =new ArrayList<>();        //实例化一个集合       list.add(new Goods("商品3", "23", 0));        list.add(new Goods("商品4", "24", R.drawable.hu, 1));        list.add(new Goods("商品1", "21", 0));        list.add(new Goods("商品2", "22", R.drawable.hu, 1));        list.add(new Goods("商品5", "25", 0));        list.add(new Goods("商品6", "26", R.drawable.hu, 1));        list.add(new Goods("商品21", "21", 0));        list.add(new Goods("商品5", "25", 0));        list.add(new Goods("商品22", "22", R.drawable.hu, 1));        list.add(new Goods("商品23", "23", 0));        list.add(new Goods("商品24", "24", R.drawable.hu, 1));        list.add(new Goods("商品25", "25", 0));        list.add(new Goods("商品26", "26", R.drawable.hu, 1));        list.add(new Goods("商品31", "21", 0));        list.add(new Goods("商品32", "22", R.drawable.hu, 1));        list.add(new Goods("商品34", "24", R.drawable.hu, 1));        list.add(new Goods("商品36", "26", R.drawable.hu, 1));        list.add(new Goods("商品33", "23", 0));        list.add(new Goods("商品35", "25", 0));        //为集合添加对象           lv.setAdapter( new Madapter());        //设置适配器    }class Madapter extends BaseAdapter {    private final int TYPE0 = 0;//只有文字的条目    private final int TYPE1 = 1;//文字+图片的条目     //分别加载的条目为哪类布局的文件    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int i) {        return list.get(i);    }    @Override    public long getItemId(int i) {        return i;    }    @Override    public int getViewTypeCount() {        return 2;    }   //有多少个条目类型    @Override    public int getItemViewType(int position) {        return list.get(position).getTypeId();    }  //通过那个属性区别    @Override    public View getView(int i, View view, ViewGroup viewGroup) {        int type = getItemViewType(i);        //返回条目类型的判断条件        Holder0 holder0;        Holder1 holder1;        switch (type) {            case TYPE0:                if (view == null) {                    holder0 = new Holder0();                    view = View.inflate(MainActivity.this, R.layout.item, null);                    holder0.textView1 = (TextView) view.findViewById(R.id.tv1);                    holder0.textView2 = (TextView) view.findViewById(R.id.tv2);                    view.setTag(holder0);                } else {                    holder0 = (Holder0) view.getTag();                }                holder0.textView1.setText(list.get(i).getName());                holder0.textView2.setText(list.get(i).getPrice());                break;            case TYPE1:                if (view == null) {                    holder1 = new Holder1();                    view = View.inflate(MainActivity.this, R.layout.item2, null);                    holder1.textView1 = (TextView) view.findViewById(R.id.tv1);                    holder1.textView2 = (TextView) view.findViewById(R.id.tv2);                    holder1.imageView1 = (ImageView) view.findViewById(R.id.ig);                    view.setTag(holder1);                } else {                    holder1 = (Holder1) view.getTag();                }                holder1.textView1.setText(list.get(i).getName());                holder1.textView2.setText(list.get(i).getPrice());                instance.displayImage(imgUrl, holder1.imageView1);                break;        }        return view;    }}    class Holder0 {        private TextView textView1;        private TextView textView2;    }    class Holder1 {        private TextView textView1;        private TextView textView2;        private ImageView imageView1;    }}
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