Android uses gallery components for picture playback preview

Gallery (Gallery ) expands the layoutparams to provide a place to accommodate current transformation information and previous location conversion information.

Activity

Package Com.app.test01;import Com.app.adapter.imageadapter;import android.app.activity;import Android.os.bundle;import Android.view.view;import Android.widget.adapterview;import Android.widget.Gallery;import Android.widget.ImageView; Public classGallerytest extends activity{Gallery Gallery;    ImageView Imagedemo; Imageadapter Iadapter=NewImageadapter ( This); @Overrideprotected voidonCreate (Bundle savedinstancestate) {//TODO auto-generated Method Stubsuper.oncreate (savedinstancestate);                Setcontentview (R.layout.activity_gallery); Gallery=(Gallery) Findviewbyid (r.id.gallery1); Imagedemo=(ImageView) Findviewbyid (R.id.imagedemo);        Gallery.setadapter (Iadapter); Gallery.setonitemclicklistener (NewAdapterview.onitemclicklistener () {@Override Public voidOnitemclick (adapterview<?>Parent, view view,intPositionLongID) {//TODO auto-generated Method Stubinteger[] Iviews =Iadapter.getmimageids ();            Imagedemo.setimagedrawable (Getresources (). getdrawable (Iviews[position]));    }        }); }}

Baseadapter Adapter

Package Com.app.adapter;import Com.app.test01.r;import android.content.context;import Android.content.res.typedarray;import Android.view.view;import Android.view.viewgroup;import Android.widget.baseadapter;import Android.widget.gallery;import Android.widget.ImageView; Public classImageadapter extends Baseadapter {PrivateContext Mcontext;  PublicImageadapter (Context c) {Mcontext=C; }     Public intGetCount () {returnmimageids.length; }     PublicObject GetItem (intposition) {        returnposition; }     Public LongGetitemid (intposition) {        returnposition; }     PublicView GetView (intposition, View Convertview, ViewGroup parent) {ImageView I=NewImageView (Mcontext);        I.setimageresource (Mimageids[position]); I.setlayoutparams (NewGallery.layoutparams ( Max, the)); returni; }     Publicinteger[] Getmimageids () {returnMimageids; }     Public voidsetmimageids (integer[] mimageids) { This. Mimageids =Mimageids; }    Privateinteger[] Mimageids ={r.drawable.image01, r.drawable.image02, R.drawable.image03, r.drawable. Image04, R.drawable.image05, R.drawable.image06, R.drawable.image07, r.drawabl E.image08, R.drawable.image09, R.drawable.image01, R.DRAWABLE.IMAGE02, R.drawa BLE.IMAGE03, R.drawable.image04, R.drawable.image05, R.drawable.image06, R.dra Wable.image07, R.drawable.image08, R.drawable.image09,};}

XML layout file

<?xml version="1.0"encoding="Utf-8"? ><linearlayout xmlns:android="http://schemas.android.com/apk/res/android"Android:layout_width="match_parent"Android:layout_height="match_parent"android:orientation="Vertical"> <Gallery Android:id="@+id/gallery1"Android:layout_width="match_parent"Android:layout_height="wrap_content"Android:layout_margintop="50DP"/> <relativelayout android:layout_width="match_parent"Android:layout_height="match_parent"android:gravity="Center"> <ImageView Android:id="@+id/imagedemo"Android:layout_width="wrap_content"Android:layout_height="wrap_content"android:src="@drawable/image01"/> </RelativeLayout></LinearLayout>

Android uses gallery components for picture playback preview