Android：自动完成文本框

Android：自动完成文本框

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">

<AutoCompleteTextView
android:id="@+id/myAutoCompleteTextView"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />

</LinearLayout>

package com.example.sample_5_1;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class AutoCompleteActivity extends AppCompatActivity {
private static final String[] myStr = new String[]{
"vae","victory","vision","virtue","vital"
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_auto_complete);
ArrayAdapter<String> aa = new ArrayAdapter<String>(    //创建适配器
this,                                          // Context
android.R.layout.simple_dropdown_item_1line,
//使用Android自带的简单布局
myStr);                                        //资源数组
AutoCompleteTextView myAutoCompleteTextView =
(AutoCompleteTextView) findViewById(R.id.myAutoCompleteTextView);
//得到控件的引用
myAutoCompleteTextView.setAdapter(aa);   //设置适配器
myAutoCompleteTextView.setThreshold(1);   //定义需要用户输入的字符数
}
}