Android 学习--ListView 的使用(三)

使用SimpleAdapter 创建ListView

程序清单1

<?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">

    <ListView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/mylist"
        />
</LinearLayout>

程序清单2

package xiaocool.net.classspace.ClassBlog;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.ListView;
import android.widget.SimpleAdapter;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import xiaocool.net.classspace.R;

/**
 * Created by MRYU on 2015/3/14.
 */
public class TuiJian extends ActionBarActivity {

    private ListView listView;
    private String[] contents=new String[]{"大声吼孩子有什么用？","大声吼孩子有什么用？","大声吼孩子有什么用？"};

    private String[] times=new String[]{"2015/3/14 14:44","2015/3/14 14:44","2015/3/14 14:44"};

    private int[] images=new int[]{R.drawable.touxiang,R.drawable.touxiang,R.drawable.touxiang};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.classblog_tuijian);
        //创建一个List集合 ，list集合的元素是Map
        List<Map<String,Object>> listitems=new ArrayList<Map<String, Object>>();
        for(int i=0;i<contents.length;i++){
            Map<String,Object> listitem=new HashMap<String,Object>();
            listitem.put("content",contents[i]);
            listitem.put("time",times[i]);
            listitem.put("image",images[i]);
            listitems.add(listitem);
        }
        //创建一个SimpleAdapter
        SimpleAdapter simpleAdapter =new SimpleAdapter(this,listitems,R.layout.tuijian_item,
                new String[]{"content","time","image"},
                new int[]{R.id.textContent,R.id.textTime,R.id.imageView3}
                );
        listView=(ListView)this.findViewById(R.id.mylist);
        listView.setAdapter(simpleAdapter);
    }
}

程序清单3 每一个列表项可根据自己需要进行定制

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="New Text"
        android:id="@+id/textContent"
        android:textSize="20sp"
        android:layout_marginLeft="55dp"
        android:layout_marginStart="55dp"

        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:id="@+id/textTime"
        android:textSize="15sp"
        android:layout_alignBottom="@+id/imageView3"
        android:layout_alignLeft="@+id/textContent"
        android:layout_alignStart="@+id/textContent" />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/imageView3"
        android:src="@drawable/touxiang"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_marginRight="50dp"
        android:layout_marginEnd="50dp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:id="@+id/textZan"
        android:layout_alignBottom="@+id/imageView3"
        android:layout_toRightOf="@+id/textContent"
        android:layout_toEndOf="@+id/textContent" />
</RelativeLayout>

效果图