Android -- ListView与ArrayAdapter、SimpleAdapter

对于ArrayAdapter，里面虽然能添加图片，但只能是相同的图片。

废话不多说：

布局&&list的item布局                                                                

<LinearLayout 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"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >



    <ListView

        android:id="@+id/lv"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

         />



</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="horizontal" >



    <ImageView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:src="@drawable/ic_launcher" />



    <TextView

        android:id="@+id/tv"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />



</LinearLayout>

程序                                                                                            

private static String[] names= {"功能1","功能2","功能3","功能4","功能5"};

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

        ListView lv = (ListView) findViewById(R.id.lv);

        lv.setAdapter(new ArrayAdapter<String>(this, R.layout.list_item,R.id.tv, names));

    }

--------------------------简单的分割线--------------0-0-----------------------------------------------------------

SimpleAdapter可以添加图片的哈~~每一个item都可以加自己想要的图片。

在item布局里面给imageView添加id为iv。

程序                                                                                            

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



        ListView lv = (ListView) findViewById(R.id.lv);

        List<Map<String,Object>> data = new ArrayList<Map<String,Object>>();



        Map<String,Object> map1 = new HashMap<String, Object>();

        map1.put("nameText", "第1个啦啦啦");

        map1.put("icon", R.drawable.ic_launcher);



        Map<String,Object> map2 = new HashMap<String, Object>();

        map2.put("nameText", "第2个啦啦啦");

        map2.put("icon", R.drawable.info_buse);



        Map<String,Object> map3 = new HashMap<String, Object>();

        map3.put("nameText", "第3个啦啦啦");

        map3.put("icon", R.drawable.info_duijiao);



        Map<String,Object> map4 = new HashMap<String, Object>();

        map4.put("nameText", "第4个啦啦啦");

        map4.put("icon", R.drawable.info_flash);



        data.add(map1);

        data.add(map2);

        data.add(map3);

        data.add(map4);

        

        lv.setAdapter(new SimpleAdapter(this, data, R.layout.list_item, new String[]{"nameText", "icon"},new int[]{R.id.tv,R.id.iv}));

    }

效果：

data为绑定的数据，list集合。R.layout.list_item，数据显示对应的布局，这是要让数据跟view对象奖励一个映射关系。from[] ，map集合里面的数据的key。to[]，布局文件里面的id。

我是天王盖地虎的分割线                                                                 

源代码：http://pan.baidu.com/s/1dD1Qx01

listview学习2.zip

 

 

 

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