XML属性

android:completionHint 下拉菜单标题
android:completionThreshold 输入多少个字符才会提示
android:dropDownHerght 下拉菜单高度
android:dropDownWidth 下拉菜单宽度
android:dropDownHorizontalOffset 下拉菜单与文本的水平偏移量。默认为对齐文本框
android:dropDownVerticalOffset 下拉菜单与文本的垂直偏移量。默认紧跟文本框
android:popupBackground 下拉菜单设置背景

列子

1.布局

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

2.Activity

public class MainActivity extends AppCompatActivity {    private static final String[] name = {"有空you","淘宝天猫","美的电器部门",            "软件编程java","LG显示器","哈哈哈哈哈哈哈"};    private AutoCompleteTextView av;    private Button bn;    private ArrayAdapter adapter;    @Override    protected void onCreate(Bundle savedInstanceState) {      super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.activity_main);        av = (AutoCompleteTextView) findViewById(R.id.av);        bn = (Button) findViewById(R.id.bn);        adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,name);        av.setAdapter(adapter);        bn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Toast.makeText(MainActivity.this, av.getText().toString(), Toast.LENGTH_SHORT).show();            }        });    }}

AutoCompleteTextView自动完成文本框

XML属性

列子

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