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Android实现自动文本框提示功能

时间:2021-11-05 09:22:45 | 栏目:Android代码 | 点击:

本文实例为大家分享了Android实现自动文本框提示的具体代码,供大家参考,具体内容如下

activity_main.xml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:orientation="vertical" >
  <!--
   默认输2个字符才能有提示
   completionThreshold表示只输入1个字符后,就有提示
   requestFocus表示界面展开时焦点直接在第二个文本框
  -->
  <AutoCompleteTextView
    android:id="@+id/myTextView01"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:completionThreshold="1" />
  <MultiAutoCompleteTextView
    android:id="@+id/myTextView02"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:completionThreshold="1">
    <requestFocus />

  </MultiAutoCompleteTextView>

</LinearLayout>

代码实现

public class MainActivity extends Activity {

  private AutoCompleteTextView myTextView01;
  private MultiAutoCompleteTextView myTextView02;

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

    myTextView01 = (AutoCompleteTextView) findViewById(R.id.myTextView01);
    myTextView02 = (MultiAutoCompleteTextView) findViewById(R.id.myTextView02);

    String[] str={"xiaohe","xiaowang","xiaoli","zhanghe","zhangmin","zhaojun","lihe","daming"};
    /*
    * 创建适配器
    * 参数一:上下文
    * 参数二:提示下位框的样式,不喜欢可以换android.R.layout.*
    * 参数三:下拉框中备选的内容
    */
    ArrayAdapter<String> adapter=new ArrayAdapter<String>(
    this,
    android.R.layout.simple_dropdown_item_1line,
    str);

    //将Adapter设置到AutoCompleteTextView中
    myTextView01.setAdapter(adapter);

    myTextView02.setAdapter(adapter);
    //以","作为分隔符
    myTextView02.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
  }
}

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