Android Learning notes Control Spinner

1.mian.xml Layout file

1 <?XML version= "1.0" encoding= "Utf-8"?>2 <LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"3 Android:layout_width= "Match_parent"4 Android:layout_height= "Match_parent"5 android:orientation= "vertical" >6     7     <TextView8         Android:id= "@+id/textview1"9 Android:layout_width= "Match_parent"Ten Android:layout_height= "Wrap_content" One Android:text= "You are entering Arsenal" A android:textsize= "20SP"/> -      -     <Spinner the         Android:id= "@+id/spinner1" - Android:layout_margintop= "10DP" - Android:layout_width= "Match_parent" - Android:layout_height= "Wrap_content"/> +      -  + </LinearLayout>

2.item.xml Style layout file

1 <?XML version= "1.0" encoding= "Utf-8"?>2 <LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"3 Android:layout_width= "Match_parent"4 Android:layout_height= "Match_parent"5 android:orientation= "Horizontal" >6     7     <ImageView8         Android:id= "@+id/imageview1"9 Android:layout_width= "60DP"Ten Android:layout_height= "60DP" One android:src= "@drawable /A"/> A      -     <TextView -         Android:id= "@+id/textview2" the Android:layout_width= "Match_parent" - Android:layout_height= "60DP" - Android:text= "Arsenal" - android:textsize= "20SP" + android:gravity= "Center"/> -      +  A </LinearLayout>

3.java Code

1  Public classMainactivityextendsActivity {2     3     PrivateTextView TV1;4     PrivateSpinner S1;5     PrivateList<map<string,object>>dataList;6     Privatesimpleadapter sa;7     Private int[] pic ={R.DRAWABLE.A,R.DRAWABLE.L,R.DRAWABLE.M,R.DRAWABLE.Q};8     PrivateString[] name = {"Arsenal", "Liverpool", "Manchester United", "Chelsea"};9 Ten @Override One     protected voidonCreate (Bundle savedinstancestate) { A         Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.main); -          theTV1 =(TextView) Findviewbyid (r.id.textview1); -S1 =(Spinner) Findviewbyid (r.id.spinner1); -          -DataList =NewArraylist<map<string,object>>(); +          -         //New Adapter +SA =NewSimpleadapter ( This, GetData (), R.layout.item,Newstring[]{"pic", "name"},New int[]{r.id.imageview1,r.id.textview2}]; A          at         //set a drop-down style sheet - Sa.setdropdownviewresource (r.layout.item); - S1.setadapter (SA); -          -         //S1 setting up listeners -S1.setonitemselectedlistener (NewOnitemselectedlistener () { in  - @Override to              Public voidOnitemselected (adapterview<?>Parent, view view, +                     intPositionLongID) { -                 //TODO auto-generated Method Stub theString team =Sa.getitem (position). toString (); *Tv1.settext ("You entered is" +team); $             }Panax Notoginseng  - @Override the              Public voidOnnothingselected (adapterview<?>parent) { +                 //TODO auto-generated Method Stub A                  the             } +         }); -     } $     //set up a data source $     PrivateList<map<string,object>>GetData () { -          for(inti = 0;i<pic.length;i++){ -map<string, object> map =NewHashmap<string, object>(); theMap.put ("Pic", Pic[i]); -Map.put ("name", Name[i]);Wuyi datalist.add (map); the         } -         returndataList; Wu     } -      About}

Android Learning notes Control Spinner