安卓edittext與下拉列表

Question

我有一個edittext從用戶獲取值。我想添加一個選項，當點擊edittext時，用戶可以通過下拉列表從不同的選項中進行選擇。有沒有人有一個想法如何做到這一點？

這是EditText上代碼：

<EditText 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:inputType="textPersonName" 
    android:ems="10" 
    android:id="@+id/dish_quantity" 
    android:layout_below="@+id/dish_name" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentEnd="true" 
    android:hint="Quantity" /> 

我希望它看起來像這樣：

Answer 1

在Android上它了所謂autocompletetextview

谷歌官方文檔： http://developer.android.com/reference/android/widget/AutoCompleteTextView.html

請檢查了這一點，教程 http://www.tutorialspoint.com/android/android_auto_complete.htm

Answer 2

activity_main.xml中

<RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context=".MainActivity" > 

    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentTop="true" 
     android:layout_marginTop="15dp" 
     android:text="@string/what_is_your_favourite_programming_language_" /> 

    <AutoCompleteTextView 
     android:id="@+id/autoCompleteTextView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentLeft="true" 
     android:layout_below="@+id/textView1" 
     android:layout_marginLeft="36dp" 
     android:layout_marginTop="17dp" 
     android:ems="10" 
     android:text=""> 

     <requestFocus /> 
    </AutoCompleteTextView> 

</RelativeLayout> 

MainActivity.java

import android.os.Bundle; 
import android.app.Activity; 
import android.graphics.Color; 
import android.view.Menu; 
import android.widget.ArrayAdapter; 
import android.widget.AutoCompleteTextView; 

public class MainActivity extends Activity { 
    String[] language ={"C","C++","Java",".NET","iPhone","Android","ASP.NET","PHP"}; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     //Creating the instance of ArrayAdapter containing list of language names 
      ArrayAdapter<String> adapter = new ArrayAdapter<String> 
      (this,android.R.layout.select_dialog_item,language); 
     //Getting the instance of AutoCompleteTextView 
      AutoCompleteTextView actv= (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1); 
      actv.setThreshold(1);//will start working from first character 
      actv.setAdapter(adapter);//setting the adapter data into the AutoCompleteTextView 
      actv.setTextColor(Color.RED); 

    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.activity_main, menu); 
     return true; 
    } 

} 

Answer 3

我覺得這是你的要求：

只要按照這個例子： Xml： -

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    > 
<AutoCompleteTextView 
    android:id="@+id/languages" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"></AutoCompleteTextView> 
</LinearLayout> 

活動： -

import android.app.Activity; 
import android.os.Bundle; 
import android.widget.ArrayAdapter; 
import android.widget.AutoCompleteTextView; 

public class MainActivity extends Activity { 

    String[] languages = { "C","C++","Java","C#","PHP","JavaScript","jQuery","AJAX","JSON" }; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 
       //Create Array Adapter 
     ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.select_dialog_singlechoice, languages); 
       //Find TextView control 
     AutoCompleteTextView acTextView = (AutoCompleteTextView) findViewById(R.id.languages); 
     //Set the number of characters the user must type before the drop down list is shown 
       acTextView.setThreshold(1); 
       //Set the adapter 
     acTextView.setAdapter(adapter); 
    } 
} 

演示： -

Answer 4

我想你在找什麼可以用Spinner，而不是一個EditText來完成。

這裏的a detailed explanation如何使用它。