Android自动提示控件：AutoCompleteTextView和MultiAutoCompleteTextView

    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <AutoCompleteTextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:completionThreshold="1"
        android:id="@+id/acTv"
        android:hint="请输入内容"
        />


    <MultiAutoCompleteTextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:completionThreshold="1"
        android:id="@+id/macTV"
        android:layout_below="@+id/acTv"
        android:layout_marginTop="20dp"
        />

public class MainActivity extends AppCompatActivity {
    private AutoCompleteTextView autoCompleteTextView;
    private MultiAutoCompleteTextView multiAutoCompleteTextView;

    private String[] datas={"android1","android2","android3","android4",
            "java1","java2","java3","java4",};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();//初始化视图
        initTV();//设置autoCompleteTextView和multiAutoCompleteTextView

    }

    private void initTV() {
        // 配置设配器
        ArrayAdapter arrayAdapter = new ArrayAdapter(
                this, android.R.layout.simple_expandable_list_item_1, datas);
        //设置adapter
        autoCompleteTextView.setAdapter(arrayAdapter);


        //设置adapter
        multiAutoCompleteTextView.setAdapter(arrayAdapter);
        //设置以逗号为分隔符
        multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
    }



    private void initView() {
        autoCompleteTextView= (AutoCompleteTextView) findViewById(R.id.acTv);
        multiAutoCompleteTextView= (MultiAutoCompleteTextView) findViewById(R.id.macTV);

    }
}