Android--image switch (imageswitcher) instance

The Main.xml code is as follows:

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "Android:layout_width=" Fill_parent "android:layout_height=" fill_parent "android:orientation=" vertical "&G    T <imageswitcher android:id= "@+id/imageswitcher" android:layout_width= "Wrap_content" Android:layout_        height= "Wrap_content" > </ImageSwitcher> <linearlayout android:layout_width= "Fill_parent" android:layout_height= "fill_parent" android:orientation= "horizontal" > <button android:id= "            @+id/btnprevious "android:layout_width=" wrap_content "android:layout_height=" Wrap_content "            Android:enabled= "false" android:text= "previous picture"/> <button android:id= "@+id/btnnext" Android:layout_width= "Wrap_content" android:layout_height= "wrap_content" android:enabled= "tr UE "Android:text="Next Photo "/> </LinearLayout></LinearLayout> 

. Java code is as follows:

Package Org.lxh.demo;import Android.app.activity;import Android.app.alertdialog;import android.app.Dialog;import Android.app.progressdialog;import Android.content.dialoginterface;import Android.os.bundle;import Android.text.method.scrollingmovementmethod;import Android.view.layoutinflater;import Android.view.View;import Android.view.view.onclicklistener;import Android.view.viewgroup.layoutparams;import Android.view.animation.animationutils;import Android.widget.adapterview;import Android.widget.adapterview.onitemclicklistener;import Android.widget.adapterview.onitemselectedlistener;import Android.widget.button;import Android.widget.imageswitcher;import Android.widget.imageview;import Android.widget.seekbar;import Android.widget.seekbar.onseekbarchangelistener;import Android.widget.Spinner; Import Android.widget.textview;import Android.widget.toast;import Android.widget.viewswitcher.viewfactory;public Class Hello extends Activity {private Imageswitcher imageswitcher = Null;private Button btnprevious = null;private Button btnnext = null;private int[] imgres = new int[] {r.drawable.ispic_a, r.drawable.ispic_ B,r.drawable.ispic_c, R.drawable.ispic_d, R.drawable.ispic_e,};p rivate int foot = 0; @Overridepublic void OnCreate ( Bundle savedinstancestate) {super.oncreate (savedinstancestate);//life cycle Method Super.setcontentview (R.layout.main); Set the layout manager to use This.imageswitcher = (imageswitcher) Super.findviewbyid (r.id.imageswitcher); this.btnprevious = (Button) Super.findviewbyid (r.id.btnprevious); this.btnnext = (Button) Super.findviewbyid (R.id.btnnext);        This.imageSwitcher.setFactory (New Viewfactoryimpl ()); This.imageSwitcher.setInAnimation (Animationutils.loadanimation (this, Android.        r.anim.fade_in)); This.imageSwitcher.setOutAnimation (Animationutils.loadanimation (this, Android. r.anim.fade_out)); This.imageSwitcher.setImageResource (imgres[foot++]); This.btnPrevious.setOnClickListener (new Onclicklistenerprevious ()); This.btnNext.setOnClickListener (new Onclicklistenernext ());} PriVate class Onclicklistenerprevious implements Onclicklistener {public void OnClick (View arg0) { Hello.this.imageSwitcher.setImageResource (imgres[foot--]); Hello.this.checkButtonEnable ();}} Private class Onclicklistenernext implements Onclicklistener {public void OnClick (View arg0) { Hello.this.imageSwitcher.setImageResource (imgres[foot++]); Hello.this.checkButtonEnable ();}} Private class Viewfactoryimpl implements Viewfactory {public View Makeview () {ImageView img = new ImageView (hello.this); IM G.setbackgroundcolor (0xFFFFFFFF); Img.setscaletype (ImageView.ScaleType.CENTER); Img.setlayoutparams (new Imageswitcher.layoutparams (Layoutparams.fill_parent, layoutparams.fill_parent)); return img;}} private void Checkbuttonenable () {if (This.foot < this.imgres.length-1) {this.btnNext.setEnabled (true);} else{ This.btnNext.setEnabled (false);} if (This.foot = = 0) {this.btnPrevious.setEnabled (false);} else{this.btnprevious.setenabled (True);}}

The effect is as follows:

Source code Download: http://download.csdn.net/detail/yayun0516/8380329

Android--image switch (imageswitcher) instance