Android Drop-down List Spinner Instance code _android

The Spinner component is somewhat typed into the dropdown box in HTML <Select></select>, letting the user choose one from the Drop-down box at a time, This article for everyone to share the Android Drop-down list spinner specific implementation code, for your reference, the specific contents are as follows

Mian.xml

<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= ". Main ">

 <spinner
  android:id=" @+id/spinner "
  android:layout_width=" 300sp "
  android:layout_ height= "50SP"
  android:layout_gravity= "Center_horizontal"/>

</LinearLayout>

Main.java

Package com.app.main;

Import android.app.Activity;
Import Android.os.Bundle;
Import Android.widget.ArrayAdapter;
Import Android.widget.Spinner;

public class Main extends activity {

 Spinner Spinner = null;

 @Override
 protected void onCreate (Bundle savedinstancestate) {
  super.oncreate (savedinstancestate);
  Setcontentview (r.layout.main);

  Spinner = (spinner) This.findviewbyid (R.id.spinner);
  Arrayadapter adapter = new Arrayadapter (this,
    Android. R.layout.simple_spinner_item, new string[] {"First item",
      "second item", "Third Item"});

  Sets the Drop-down style
  Adapter.setdropdownviewresource (Android. R.layout.simple_dropdown_item_1line);
  Spinner.setadapter (adapter);
 }

Effect Chart:

The main concerns are two XML files, one is the Simple_spinner_item.xml and Drop-down style when populating data simple_dropdown_item_1line

Simple_spinner_item.xml:

<textview xmlns:android= "http://schemas.android.com/apk/res/android" 
 android:id= "@android: Id/text1"
 Style= "Android:attr/spinneritemstyle"
 android:singleline= "true"
 android:layout_width= "Match_parent"
 android:layout_height= "wrap_content"
 android:ellipsize= "marquee"
 android:textalignment= "Inherit"/ >

Simple_dropdown_item_1line.xml:

<textview xmlns:android= "http://schemas.android.com/apk/res/android" 
 android:id= "@android: Id/text1"
 style= "Android:attr/dropdownitemstyle"
 android:textappearance= "? android:attr/ Textappearancelargepopupmenu "
 android:singleline=" true "
 android:layout_width=" Match_parent
 " android:layout_height= "Android:attr/listpreferreditemheight"
 android:ellipsize= "marquee"/>

The above is the entire content of this article, I hope to learn about Android software programming help, but also hope that we support the cloud habitat community.