Customization of Spinner

First, add a <Spinner/> in the Main.xml

Main.xml

1 <LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"2 Xmlns:tools= "Http://schemas.android.com/tools"3 Android:layout_width= "Match_parent"4 Android:layout_height= "Match_parent"5 Tools:context= "Com.jorlee.myspinner.MainActivity" >6 7     <Spinner8         Android:id= "@+id/mspinner"9 Android:layout_width= "Match_parent"Ten Android:layout_height= "50DP" One Android:layout_margin= "20DP" A Android:animationcache= "true" - Android:background= "@drawable/mspinner_style"/> -      the </LinearLayout>

Here, I wrote a background myself.

Mspinner_style.xml

1 <?XML version= "1.0" encoding= "UTF-8"?>2 <Shapexmlns:android= "Http://schemas.android.com/apk/res/android">3     <Stroke4         Android:width= "0.5DP"5 Android:color= "#FFC0CB"/>6     <Corners7         Android:radius= "10DP"/>8     <Solid9         Android:color= "#FFB6C1"/>Ten </Shape>

And then there's Mainactivity.java.

Mainactivity.java

1  Public classMainactivityextendsActivity {2     PrivateSpinner Mspinner;3     Privatestring[] Mitem;4 @Override5     protected voidonCreate (Bundle savedinstancestate) {6         Super. OnCreate (savedinstancestate);7 Setcontentview (r.layout.activity_main);8         9Mspinner=(Spinner) Findviewbyid (r.id.mspinner);Tenmitem=getresources (). Getstringarray (R.array.spinneritem); One          AArrayadapter<string> arrayadapter=NewArrayadapter<> ( This,  - R.layout.adapter_style, Mitem); - Mspinner.setadapter (arrayadapter); the          -Mspinner.setonitemselectedlistener (NewOnitemselectedlistener () { -  - @Override +              Public voidOnitemselected (adapterview<?>Parent, view view, -                     intPositionLongID) { +String pstring=parent.getitematposition (position). toString (); AToast.maketext (mainactivity. This, "You have chosen:" +pstring, 2000). Show (); at             } -  - @Override -              Public voidOnnothingselected (adapterview<?>parent) { -                 //TODO auto-generated Method Stub -                  in             } -              to         }); +     } -  the}

Here I'm going to show what needs to be shown in the spinner is represented by a simple string array, in the Res/values directory

M_spinner_item.xml

1 <?XML version= "1.0" encoding= "UTF-8"?>2 <Resources>3     <String-arrayname= "Spinneritem">4         <Item>Basketball</Item>5         <Item>Football</Item>6         <Item>Badminton</Item>7         <Item>Volleyball</Item>8         <Item>Table tennis</Item>9         <Item>Football</Item>Ten     </String-array> One </Resources>

In the above Java code is not difficult to find, in fact, the so-called spinner customization, the key is the adapter adapter settings, here for convenience, I use the simplest arrayadapter

arrayadapter<string> arrayadapter=New arrayadapter<> (this, R.layout.adapter_style, Mitem);

The second parameter here is the style of each item, in the Res/layout directory

Adapter_style.xml

1 <?XML version= "1.0" encoding= "UTF-8"?>2 <TextViewxmlns:android= "Http://schemas.android.com/apk/res/android"3 style= "? Android:attr/spinnerdropdownitemstyle"4 Android:singleline= "true"5 Android:layout_width= "Fill_parent"6 android:textsize= "25SP"7 Android:textcolor= "#DC143C"8 Android:layout_margin= "10DP"9 Android:layout_height= "? Android:attr/listpreferreditemheight"/>

Visible, each item is a simple TextView

Of course, there are many other adapters that can be used, such as Baseadapter

1Baseadapter baseadapter=NewBaseadapter () {2             3 @Override4              PublicView GetView (intposition, View Convertview, ViewGroup parent) {5Layoutinflater Inflater=layoutinflater.from (mainactivity. This);6Convertview=inflater.inflate (R.layout.mitem,NULL);7                 returnConvertview;8             }9             Ten @Override One              Public LongGetitemid (intposition) { A                 //TODO auto-generated Method Stub -                 return0; -             } the              - @Override -              PublicObject GetItem (intposition) { -                 //TODO auto-generated Method Stub +                 return NULL; -             } +              A @Override at              Public intGetCount () { -                 //TODO auto-generated Method Stub -                 return5; -             } -};

Just in the GetView () method, just

Layoutinflater Inflater=layoutinflater.from (mainactivity. This);  

Convertview=inflater.inflate (R.layout.mitem,null);
Where Mitem.xml is an XML file written in the Res/layout directory, it is the layout of each item and can be customized.

Finally, just be mspinner.setadapter (baseadapter);

Paste on:

When using Arrayadapter:

When using Baseadapter:

Customization of Spinner