(1)首先实现AutoCompleteTextView功能所需要的适配器数据源共有两种方法,一种结果是手工配置的,另一汇总是通过xml文件制定的数据(当然也可以通过网上资源获得)
这里只讲前两种!
(2)布局的页面代码都一样如下:
<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" 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" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginTop="34dp" android:text="所属城市:" android:textSize="20dp" /> <AutoCompleteTextView android:id="@+id/autoCompleteTextView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBottom="@+id/textView1" android:layout_toRightOf="@+id/textView1" android:ems="10" android:text="" > <requestFocus /> </AutoCompleteTextView> </RelativeLayout>
(2)第一种是通过手工配置的list数据源:
package com.example.autocompletetextview; public class MainActivity extends Activity { private AutoCompleteTextView autoCompleteTextView1; private ArrayAdapter<String> adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); autoCompleteTextView1 = (AutoCompleteTextView) this .findViewById(R.id.autoCompleteTextView1); /* * 1.使用手工方式的list数组适配器 */ adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, getDataSource()); autoCompleteTextView1.setAdapter(adapter); } /* * 1.手工设置一个list数组作为数据源 */ public List<String> getDataSource() { List<String> list = new ArrayList<String>(); list.add("beijing"); list.add("beida"); list.add("beiren"); list.add("shanghai"); list.add("shangzhou"); list.add("guangzhou"); list.add("dancheng"); list.add("ningping"); list.add("zhoukou"); list.add("chengdu"); list.add("heze"); list.add("zhumadian"); list.add("luoyang"); list.add("shuanglou"); list.add("yizhong"); list.add("xindu"); return list; } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } }
(4)第二种是通过xml文件制定的数据源
name我们需要在/values/strings文件下添加下边的配置
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">"AutoCompleteTextView "</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <string-array name="countries_array"> <item>Afghanistan</item> <item>Albania</item> <item>Algeria</item> <item>American Samoa</item> <item>Andorra</item> <item>Angola</item> <item>Anguilla</item> <item>Antarctica</item> <item>Bfghanistan</item> <item>Blbania</item> <item>Blgeria</item> <item>Bmerican Samoa</item> <item>Bndorra</item> <item>Bngola</item> <item>Bnguilla</item> <item>Bntarctica</item> </string-array> </resources>
然后的类为:
package com.example.autocompletetextview; public class MainActivity extends Activity { private AutoCompleteTextView autoCompleteTextView1; private ArrayAdapter<String> adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); autoCompleteTextView1 = (AutoCompleteTextView) this .findViewById(R.id.autoCompleteTextView1); /* * 2.使用xml文件来配置适配器中的数据源 */ String[] countries = getResources().getStringArray(R.array.countries_array); adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,countries); autoCompleteTextView1.setAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } }
运行的结果如下所示:
时间: 2024-10-12 22:56:27