AutoCompleteTextView

来源：互联网发布：android 7.0 数据库编辑：程序博客网时间：2024/06/02 22:13

1}AutoCompleteTextView AutoCompleteTextView效果

1)在布局文件中声明一个AutoCompleteTextView

<AutoCompleteTextView android:id="@+id/autocomplete"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_marginLeft="5dp"/>

2)定义提示条目的样式
在res/layout下新建一个布局文件,名为list_item.xml

<?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"    android:textColor="#000"></TextView>

3)创建一个ArrayAdapter来提供数据

//创建一个list，为ArrayAdapter提供数据        List<String> list = new ArrayList<String>();        list.add("测试测试");        list.add("测试test");        //创建一个ArrayAdapter对象        ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,R.layout.list_item,list);

4)为AutoCompleteTextView设置数据
autoCompleteTextView.setAdapter(arrayAdapter);

5)代码

public class MainActivity extends Activity {    /** Called when the activity is first created. */AutoCompleteTextView autoCompleteTextView = null;static final String[] COUNTRIES = new String[] {  "Afghanistan", "Albania", "Algeria", "American Samoa", "Andorra",  "Angola", "Anguilla", "Antarctica", "Antigua and Barbuda", "Argentina",  "Armenia", "Aruba", "Australia", "Austria", "Azerbaijan",  "Bahrain", "Bangladesh", "Barbados", "Belarus", "Belgium",   "Yemen", "Yugoslavia", "Zambia", "Zimbabwe"};    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        //通过ID得到AutoCompleteTextView对象        autoCompleteTextView = (AutoCompleteTextView)findViewById(R.id.autocomplete);        //创建一个list，为ArrayAdapter提供数据        List<String> list = new ArrayList<String>();        list.add("测试测试");        list.add("测试test");        //创建一个ArrayAdapter对象               ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,R.layout.list_item,list);     // ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,R.layout.list_item,COUNTRIES);      //将ArrayAdapter设置给AutoCompleteTextView对象 autoCompleteTextView.setAdapter(arrayAdapter); }}

ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,R.layout.list_item,COUNTRIES); 这个既可以传list对象,也可以设置为一个String数组.Android测试时要输入两个字符才会有提示.

2} MultiAutoCompleteTextView

1.布局文件

<MultiAutoCompleteTextView android:id="@+id/mul"android:layout_width="fill_parent" android:layout_height="wrap_content"></MultiAutoCompleteTextView>

2. MainActivity

mul = (MultiAutoCompleteTextView) this.findViewById(R.id.mul);mul.setAdapter(adapter);mul.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());// 完成对选项的拆分的功能，以逗号进行拆分

MultiAutoCompleteTextView 可以实现多个自动提示。

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