如何在android中创建下拉视图？

Question

如何创建一个下拉视图并在 android xml 中编辑文本？ 请参阅屏幕截图以供参考。有名称等编辑文本

我尝试了微调器，但我不知道如何将它与 editText 一起使用。

Answer 1

您可以使用 AutoCompleteTextView

布局中

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="abhiandroid.com.autocompletetextviewtexting.MainActivity">

    <AutoCompleteTextView
        android:id="@+id/simpleAutoCompleteTextView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#000"
        android:hint="Enter Your Name Here"
        android:padding="15dp"
        android:textColorHint="#fff"
        android:textStyle="bold|italic" />
</RelativeLayout>

在活动中

 public class MainActivity extends AppCompatActivity {
    
        String[] countryNameList = {"India", "China", "Australia", "New Zealand", "England", "Pakistan"};
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            //initiate an auto complete text view
            AutoCompleteTextView simpleAutoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.simpleAutoCompleteTextView);
            ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, countryNameList);
    
            simpleAutoCompleteTextView.setAdapter(adapter);
            simpleAutoCompleteTextView.setThreshold(1);//start searching from 1 character
            simpleAutoCompleteTextView.setAdapter(adapter);   //set the adapter for displaying country name list
        }
    
        
    }