Android学习之AutoCompleteTextView和MultiAutoCompleteTextView

转自：http://blog.csdn.net/qq_28468727/article/details/52258409

AutoCompleteTextView、MultiAutoCompleteTextView自动完成输入内容的控件

如果我们想实现用户输入的内容有自动提示功能，类似百度搜索结果，AutoCompleteTextView和MultiAutoCompleteTextView可以实现类似功能

MainActivity.JAVA:

public class MainActivity extends AppCompatActivity {

    private AutoCompleteTextView autoTextView;

    private MultiAutoCompleteTextView multiAutoCompleteTextView;

    private ArrayList<String> list;

    private ArrayAdapter<String> adapter;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        autoTextView = (AutoCompleteTextView) findViewById(R.id.autotext);

        multiAutoCompleteTextView = (MultiAutoCompleteTextView) findViewById(R.id.multiauto);

        //对list进行初始化

        list = new ArrayList<String>();

        list.add("123456");

        list.add("12345");

        list.add("1234");

        list.add("google");

        list.add("goole map");

        list.add("goole chrome");

        //使用list中的数据对适配器adapter进行初始化

        //第二个参数表示适配器为下拉风格

        adapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,list);

        //为AutoCompleteTextView添加适配器

        autoTextView.setAdapter(adapter);

        //multiAutoCompleteTextView添加适配器

        multiAutoCompleteTextView.setAdapter(adapter);

        //完成对选项的拆分，以逗号隔开

        multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());

    }

}  

activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>

<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"

    tools:context="com.example.administrator.edittextdemo.MainActivity">

    <TextView

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:id="@+id/textview1"

    android:text="AutoCompleteTextView"/>

    <AutoCompleteTextView

        android:id="@+id/autotext"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:id="@+id/textview2"

        android:text="MultiAutoCompleteTextView"/>

    <MultiAutoCompleteTextView

        android:id="@+id/multiauto"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />

</LinearLayout>