Android Custom Spinner Style

First, add a spinner control to the XML

<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 "Tools:context = "${packagename}.${activityclass}" > <spinner android:id= "@+id/sp" android:layout_width= "Match_pare NT "android:layout_height=" Wrap_content "/></relativelayout>

Then add a spinner item to the XML, which sets the effect of each column, the name is called: Spitem.xml

<?xml version= "1.0" encoding= "Utf-8"? ><textview xmlns:android= "http://schemas.android.com/apk/res/ Android "android:id=" @+id/text1 "style="? Android:attr/spinnerdropdownitemstyle "Android:layout_width=" Match_paren  T "android:layout_height=" 40SP "android:textsize=" 30sp "android:background=" #FFFFFF "android:singleline=" true " />

Finally, load the spinner in the code

import android.app.activity;import android.os.bundle;import  android.widget.ArrayAdapter;import android.widget.Spinner;public class MainActivity  extends activity {spinner spinner; @Overrideprotected  void oncreate (bundle  savedinstancestate)  {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); Spinner= ( Spinner) Findviewbyid (R.ID.SP); String data[]=new string[]{"A", "B", "C"};//declares a arrayadaper, which is used to load spinner data arrayadapter<string> Adapter=new arrayadapter<string> (this, android. R.layout.simple_spinner_item, data);//Load the item's layout style Adapter.setdropdownviewresource (r.layout.spitem);// Finally let spinner load Adapterspinner.setadapter (adapter);}} 

Operating effect:
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Android Custom Spinner Style