Android中ListView常用的两种适配器ArrayAdapter和SimpleAdapter使用

编写不易，如有转载，请声明出处：http://blog.youkuaiyun.com/zxc514257857/article/details/70217422

Demo演示图片

布局代码

//(layout)activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>
</RelativeLayout>
-------------------------------------------------------------------
//SimpleAdapter的每个item的布局
//(layout)listitem.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="horizontal"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="65dp">

        <ImageView
            android:id="@+id/imageView"
            android:src="@mipmap/pic"
            android:layout_width="60dp"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="5dp"
            android:layout_marginBottom="5dp"
            android:layout_marginRight="5dp"/>

        <RelativeLayout
            android:layout_centerVertical="true"
            android:layout_toRightOf="@+id/imageView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <RelativeLayout
                android:id="@+id/firstLine"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">
                <TextView
                    android:id="@+id/title"
                    android:text="测试帐号"
                    android:textSize="16sp"
                    android:textColor="#000"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="13dp"/>

                <TextView
                    android:id="@+id/textView"
                    android:textSize="14sp"
                    android:text="18:00"
                    android:textColor="#999"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginRight="13dp"
                    android:layout_marginEnd="13dp"
                    android:layout_alignBaseline="@+id/title"
                    android:layout_alignBottom="@+id/title"
                    android:layout_alignParentRight="true"/>

            </RelativeLayout>

            <TextView
                android:id="@+id/content"
                android:text="王健林:先定一个小目标，比如挣它一个亿"
                android:textSize="14sp"
                android:textColor="#999"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/firstLine"
                android:layout_marginLeft="13dp"
                android:layout_marginTop="8dp"/>
        </RelativeLayout>
    </RelativeLayout>
</LinearLayout>
-------------------------------------------------------------------
//menu菜单布局
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/arrayAdapter"
        android:showAsAction="never"
        android:title="ArrayAdapter"/>

    <item
        android:id="@+id/simpleAdapter"
        android:showAsAction="never"
        android:title="SimpleAdapter"/>
</menu>

Activity代码

//MainActivity
import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MainActivity extends AppCompatActivity{

    private static final String TAG = "MainActivity";
    private ListView mListView;
    private Context mContext = MainActivity.this;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView(){
        mListView = (ListView) findViewById(R.id.listView);
    }

    @Override
    //显示menu菜单
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main , menu);
        return true;
    }

    @Override
    // 将菜单中的每一个选项和其点击事件相对应
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.arrayAdapter:
                // 数组适配器的使用
                String[] res = {"0" ,"1" , "2" ,"3" ,"4" ,"5" ,"6" ,"7" , "8" ,"9" ,"0" ,"1" , "2" ,"3" ,"4" ,"5" ,"6" ,"7" , "8" ,"9"};
                ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(mContext , android.R.layout.simple_list_item_1 , res);
                // 设置滑动监听和条目监听
                mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                        Toast.makeText(mContext , "点击第" + position + "行条目", Toast.LENGTH_SHORT).show();
                    }
                });
                mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
                    @Override
                    public void onScrollStateChanged(AbsListView absListView, int scrollState) {
                        switch (scrollState) {
                            case SCROLL_STATE_TOUCH_SCROLL:
                                Log.i(TAG, "手指未离开屏幕 ,屏幕正在滑动！");
                                break;

                            case SCROLL_STATE_FLING:
                                Log.i(TAG, "手指已经离开屏幕 ,屏幕正靠着最后的惯性滑动！");
                                break;

                            case SCROLL_STATE_IDLE:
                                Log.i(TAG, "手指离开屏幕 ,屏幕停止滑动！");
                                break;
                        }
                    }

                    @Override
                    public void onScroll(AbsListView absListView, int i, int i1, int i2) {

                    }
                });
                mListView.setAdapter(arrayAdapter);
                break;

            case R.id.simpleAdapter:
                // 简单适配器的使用R.id.
                final List<Map<String ,Object>> data = new ArrayList<>();
                // 键
                String[] from = {"imageView" , "title" , "textView" , "content"};
                // 资源id
                int[] to = { R.id.imageView, R.id.title, R.id.textView, R.id.content};
                final SimpleAdapter simpleAdapter = new SimpleAdapter(mContext , data ,R.layout.listitem, from , to);
                for(int i = 1 ; i <= 20 ; i++){
                    Map<String , Object> map = new HashMap<>();
                    map.put("imageView" , R.mipmap.pic);
                    map.put("title" , "测试帐号" + i);
                    map.put("textView" , "18:00");
                    map.put("content" , "王健林:先定一个小目标，比如挣它一个亿");
                    data.add(map);
                }
                // 设置滑动监听和条目监听
                mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                        Toast.makeText(mContext , "点击第" + position + "行条目", Toast.LENGTH_SHORT).show();
                    }
                });
                mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
                    @Override
                    public void onScrollStateChanged(AbsListView absListView, int scrollState) {
                        switch (scrollState) {
                            case SCROLL_STATE_TOUCH_SCROLL:
                                Log.i(TAG, "手指未离开屏幕 ,屏幕正在滑动！");
                                // 加载到底部时,添加增加项,模拟下拉刷新
                                Map<String, Object> map = new HashMap<>();
                                map.put("imageView", R.mipmap.ic_launcher);
                                map.put("title", "测试项");
                                map.put("textView", "00:00");
                                map.put("content", "测试项");
                                data.add(map);
                                // 通知适配器进行UI的更新
                                simpleAdapter.notifyDataSetChanged();
                                break;

                            case SCROLL_STATE_FLING:
                                Log.i(TAG, "手指已经离开屏幕 ,屏幕正靠着最后的惯性滑动！");
                                break;

                            case SCROLL_STATE_IDLE:
                                Log.i(TAG, "手指离开屏幕 ,屏幕停止滑动！");
                                break;
                        }
                    }

                    @Override
                    public void onScroll(AbsListView absListView, int i, int i1, int i2) {

                    }
                });
                mListView.setAdapter(simpleAdapter);
                break;

            default:
                break;
        }
        return super.onOptionsItemSelected(item);
    }
}

Demo下载请移步：http://download.youkuaiyun.com/detail/zxc514257857/9818341


----------因本人才疏学浅，如博客或Demo中有错误的地方请大家随意指出，与大家一起讨论，共同进步，谢谢！----------