ListView例子

最新推荐文章于 2022-01-13 21:36:41 发布

原创最新推荐文章于 2022-01-13 21:36:41 发布 · 79 阅读

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[color=red]例子一：[/color]

public class ListActivity extends android.app.ListActivity{
    /** Called when the activity is first created. */
      public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        List<Map<String,String>> list = new ArrayList<Map<String,String>>();
        Map<String,String> map1 = new HashMap<String,String>();
        Map<String,String> map2 = new HashMap<String,String>();
        map1.put("name", "zhangsan");
        map1.put("ip", "0.1");
        map2.put("name", "lisi");
        map2.put("ip", "0.2");
        list.add(map1);
        list.add(map2);
        SimpleAdapter sa = new SimpleAdapter(this, list, R.layout.user, new String[]{"name","ip"}, new int[]{R.id.user_id,R.id.user_ip});
        setListAdapter(sa);
      }
}

编写一个user.xml在/res/layout中

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal">
    <TextView android:layout_height="wrap_content" android:id="@+id/user_id" android:layout_width="wrap_content" android:text="TextView" android:layout_weight="1"></TextView>
	<TextView android:layout_height="wrap_content" android:id="@+id/user_ip" android:layout_width="wrap_content" android:text="TextView" android:layout_weight="1"></TextView>
</LinearLayout>

[color=red]例子二：[/color]

public class HelloListView extends ListActivity  {
	static final String[] COUNTRIES = new String[] {
	    "Afghanistan", "Albania", "Algeria", "American Samoa"
	  };
    public void onCreate(Bundle savedInstanceState) {
    	super.onCreate(savedInstanceState);
    	  setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, COUNTRIES));
    	  ListView lv = getListView();
    	  lv.setTextFilterEnabled(true);
    	  lv.setOnItemClickListener(new OnItemClickListener() {
    	    public void onItemClick(AdapterView<?> parent, View view,
    	        int position, long id) {
    	      Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
    	          Toast.LENGTH_SHORT).show();
    	    }
    	  });
     }
}

编写list_item.xml在/res/layout中

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="10dp"
    android:textSize="16sp" >
</TextView>

[color=red]例子三：[/color]

public class ListViewActivity extends ListActivity {
      public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        String[] countries = getResources().getStringArray(R.array.countries_array);
        setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, countries));
        ListView lv = getListView();
        lv.setTextFilterEnabled(true);
      }
}

编写list_item.xml在/res/layout中

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="10dp"
    android:textSize="16sp" >
</TextView>

编写strings.xml在/res/values中

<string-array name="countries_array">
        <item>Bahrain</item>
        <item>Bangladesh</item>
        <item>Barbados</item>
        <item>Belarus</item>
        <item>Belgium</item>
        <item>Belize</item>
        <item>Benin</item>
</string-array>