Android Development for gallery effect

Gallery Slide Show multiple pictures

Layout

1<?xml version="1.0"encoding="Utf-8"?>2<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"3Android:layout_width="match_parent"4android:layout_height="match_parent"5android:orientation="Vertical">6 7 8 9<GalleryTenAndroid:id="@+id/gallery"   Oneandroid:spacing="5px"   AAndroid:unselectedalpha="0.5"   -Android:layout_width="match_parent"   -android:layout_height="wrap_content"/> the  -     -</LinearLayout>

Activity

1 Package tea_xqx;2 3 import COM.EXAMPLE.TEA.R;4 5 import android.app.Activity;6 import Android.content.res.TypedArray;7 import Android.os.Bundle;8 import Android.view.View;9 import Android.view.ViewGroup;Ten import Android.widget.AdapterView; One import Android.widget.AdapterView.OnItemClickListener; A import Android.widget.BaseAdapter; - import android.widget.Gallery; - import Android.widget.ImageView; the import Android.widget.TextView; - import Android.widget.Toast; -  -  Public classMenuteatools extends activity{ +     //set up gallery pictures -     Private int[] ImageId =New int[] {R.drawable.menu_tea_lvcha,r.drawable.menu_tea_hongcha,r.drawable.menu_tea_baicha,r.drawable.menu_tea_  Heicha,r.drawable.menu_tea_huangcha,r.drawable.menu_tea_wulongcha};  + @Override A     protected voidonCreate (Bundle savedinstancestate) { at         //TODO auto-generated Method Stub - super.oncreate (savedinstancestate); - Setcontentview (r.layout.menu_tools); -          -Gallery Gallery =(Gallery) Findviewbyid (r.id.gallery); -Baseadapter adapter =NewBaseadapter () { in @Override -                  PublicView GetView (intposition, View Convertview, ViewGroup parent) {   to ImageView ImageView;  +                     if(Convertview = =NULL) {   -ImageView =NewImageView (Menuteatools. This);  the Imageview.setscaletype (ImageView.ScaleType.FIT_XY);  *Imageview.setlayoutparams (NewGallery.layoutparams ( -, -));  $TypedArray TypedArray =obtainstyledattributes (r.styleable.gallery); Panax Notoginseng Imageview.setbackgroundresource (Typedarray.getresourceid ( - R.styleable.gallery_android_galleryitembackground, the                                 0));  +Imageview.setpadding (5,0,5,0);  A                     }  the                     Else  +                     {   -ImageView =(ImageView) Convertview;  $                     }   $ Imageview.setimageresource (imageid[position]);  -                     returnImageView;  -                 }   the        - @OverrideWuyi                  Public LongGetitemid (intposition) {   the                     returnposition;  -                 }   Wu        - @Override About                  PublicObject GetItem (intposition) {   $                     returnposition;  -                 }   -        - @Override A                  Public intGetCount () { +                     returnimageid.length;  the                 }   -             };  $ Gallery.setadapter (adapter);  theGallery.setselection (Imageid.length/2); The ID of the picture that is displayed by default the             //Click events for gallery Pictures theGallery.setonitemclicklistener (NewOnitemclicklistener () { the @Override -                  Public voidOnitemclick (adapterview<?>Parent, view view, in                         intPositionLongID) { the                  theToast.maketext (Menuteatools. This,   About                             "Section"+ string.valueof (position+1) +"Picture is selected",   the toast.length_short). Show ();  the                 }   the             });  +         }    -  the     Bayi  the}

Finally add a piece of code to the Res/values/string.xml

1 <declare-styleable name="Gallery">  2         <attr name= " Android:galleryitembackground " />  3     </declare-styleable>

This completes the effect of a gallery

Android Development for gallery effect