ListView_Adpter

1.List.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <ImageView 
    android:id="@+id/img3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    />
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/relayout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_toRightOf="@+id/img3"
    android:layout_centerInParent="true"
    >
    <TextView  
    android:id="@+id/t1"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    />
    <TextView  
    android:id="@+id/t2"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/t1"
    />
    </RelativeLayout>
</RelativeLayout>

 

2.Main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFFAF0"
    >
    <Button
    android:id="@+id/btn"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="下一个视图布局"
    />
<ListView  
    android:id="@+id/list"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    />
</LinearLayout>

4. TestadpterActivity:
/**
 * 自定义适配器
 * 
 * @author hongj
 * 
 */
public class TestadpterActivity extends Activity {
    private ListView listview;
    private Myadpter myadpter;
    private Button button;
    private List<Student> list = new ArrayList<Student>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Student student = new Student();
        student.age="20";
        student.name="张三";
        student.sex="女";
        list.add(student);
        Student student2 = new Student();
        student2.age="20";
        student2.name="王五";
        student2.sex="男";
        list.add(student2);
        
        
        button = (Button) findViewById(R.id.btn);
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(TestadpterActivity.this,TestSimpleAdapter.class);
                startActivity(intent);
            }
        });
        listview = (ListView) findViewById(R.id.list);
        myadpter = new Myadpter();
        listview.setAdapter(myadpter);
    }

    private class Holder {
        TextView hTextView1;
        TextView hTextView2;
        ImageView imageView3;
    }

    class Myadpter extends BaseAdapter {
        private LayoutInflater inflater = null;

        public Myadpter() {
            super();
            inflater = LayoutInflater.from(TestadpterActivity.this);
        }

        @Override
        public int getCount() {
            return list.size();
        }

        @Override
        public Object getItem(int position) {
            return list.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            Holder holder = new Holder();
            if (null == convertView) {
                convertView = inflater.inflate(R.layout.list, parent, false);
            }
            holder.hTextView1 = (TextView) convertView.findViewById(R.id.t1);
            holder.hTextView2 = (TextView) convertView.findViewById(R.id.t2);
            holder.imageView3 = (ImageView) convertView.findViewById(R.id.img3);
            
            holder.hTextView1.setText(list.get(position).name);
            holder.hTextView2.setText(list.get(position).sex);
            holder.imageView3.setImageResource(R.drawable.icon);
            return convertView;
        }

    }
    class Student{
        String name;
        String sex;
        String age;
    }
}

5. TestSimpleAdapter:
import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class TestSimpleAdapter extends Activity {

    private ListView listView;
    private Button button;
    private SimpleAdapter simpleAdapter;
    private ArrayList<HashMap<String, Object>> list = new ArrayList<HashMap<String,Object>>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        listView = (ListView) findViewById(R.id.list);
        button = (Button) findViewById(R.id.btn);
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(TestSimpleAdapter.this,TestArrayAdapter.class);
                startActivity(intent);
            }
        });
        HashMap<String, Object> map = new HashMap<String, Object>();
        map.put("textview1", "textview1");
        map.put("textview2", "TEXTVIEW2");
        map.put("imag3", R.drawable.icon);
        String[] from ={"textview1","textview2","imag3"};
        int[] to ={R.id.t1,R.id.t2,R.id.img3};
        list.add(map);
        simpleAdapter = new SimpleAdapter(this, list, R.layout.list, from, to);
        listView.setAdapter(simpleAdapter);
    }
}

6. TestArrayAdapter:
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;

public class TestArrayAdapter extends Activity {

    private ArrayAdapter arrayAdapter;
    private ListView listView;
    private List list;
    private Button button;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        list = new ArrayList();
        list.add("你好，这是ArrayAdapter");
        listView = (ListView) findViewById(R.id.list);
        arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1,list);
        listView.setAdapter(arrayAdapter);
        button = (Button) findViewById(R.id.btn);
        button.setVisibility(View.GONE);
    }
}

7.效果图：