布局:
<AutoCompleteTextView
android:id="@+id/searchid"
android:layout_width="300dp"
android:layout_height="50dp"
android:layout_marginStart="32dp"
android:layout_marginTop="50dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:completionThreshold="2"
android:hint="请输入搜索的文字"/>
实现:
/// 创建AutoCompleteTextView对象
AutoCompleteTextView search = (AutoCompleteTextView)findViewById(R.id.searchid);
/// 设置数据源数组
String[] arrays = {"beijing1","beijing1","beijing1","beijing1","beijing1"};
// 设置适配器
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arrays);
// 将适配器与当前AutoCompleteTextView控件绑定
search.setAdapter(adapter);
总结四步:
1. 获取AutoCompleteTextView对象
2.设置数据源
3.设置适配器
4.将适配器和控件绑定
效果图:
Untitled.gif
