Android AutoCompleteTextView

打入ch，弹出相应资源的提示


方法一：

activity_main.xml

<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">

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

</LinearLayout>

MainActivity.java

package com.example.demo04_atucompletetextview;

import android.R.anim;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends Activity {

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

//创建一个字符数组，存放自动填出的数据
String [] autoStr={"chi","chss","chuji"};

//创建一个数组器适配器
ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, autoStr);
//实例化AutoCompleteTextView
this.autoText=(AutoCompleteTextView) findViewById(R.id.autoText);
//组件绑定适配器
this.autoText.setAdapter(adapter);
}

}

方法二：

在value下建一个xml的资源文件



arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:android="http://schemas.android.com/apk/res/android">
<string-array name="data">
<item>chsi</item>
<item>chww</item>
<item>chqw</item>
<item>chty</item>
</string-array>

</resources>

activity_main.xml

<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">

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

</LinearLayout>

MainActivity.java

package com.example.demo04_atucompletetextview;

import android.R.anim;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends Activity {

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

//法1：创建一个字符数组，存放自动填出的数据
//String [] autoStr={"chi","chss","chuji"};

//法2：获取字符串中的数据
String [] autoStr=getResources().getStringArray(R.array.data);
//创建一个数组器适配器
ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, autoStr);
//实例化AutoCompleteTextView
this.autoText=(AutoCompleteTextView) findViewById(R.id.autoText);
//组件绑定适配器
this.autoText.setAdapter(adapter);
}

}