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872天前1.MainActivity.java |
package com.example.acer.myapplication; |
import android.os.Bundle; |
import android.support.v7.app.AppCompatActivity; |
import android.widget.ArrayAdapter; |
import android.widget.AutoCompleteTextView; |
public class MainActivity extends AppCompatActivity { |
// 定义字符串数组作为提示的文本 |
String[] books = new String[] { "rollen", "rollenholt", "rollenren", "roll" }; |
@Override |
protected void onCreate(Bundle savedInstanceState) { |
super.onCreate(savedInstanceState); |
setContentView(R.layout.activity_main); |
// 创建一个ArrayAdapter封装数组,simple_dropdown...是默认样式 |
ArrayAdapter<String> av = new ArrayAdapter<String>(this, |
android.R.layout.simple_dropdown_item_1line, books); |
AutoCompleteTextView auto = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1); |
auto.setAdapter(av); |
} |
} |
2.activity_main.xml |
<?xml version="1.0" encoding="utf-8"?> |
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" |
android:layout_width="fill_parent" |
android:layout_height="fill_parent" |
android:orientation="vertical" > |
<AutoCompleteTextView |
android:id="@+id/autoCompleteTextView1" |
android:layout_width="match_parent" |
android:layout_height="wrap_content" |
android:completionHint="请选择你喜欢的歌曲" |
android:completionThreshold="1" |
android:dropDownHorizontalOffset="20dp" |
android:ems="10" |
android:hint="输入" > |
</AutoCompleteTextView> |
</LinearLayout> |
