Android Combat Simple tutorial-12th gun (Viewflipper to achieve the slideshow effect)

Look directly at the code

1.mainactivity.java:

Package Org.yayun.demo;import Android.app.activity;import Android.os.bundle;import android.view.GestureDetector; Import Android.view.motionevent;import Android.view.viewgroup.layoutparams;import Android.view.animation.animation;import Android.view.animation.animationutils;import Android.widget.ImageView; Import Android.widget.viewflipper;public class Mainactivity extends Activity Implementsandroid.view.GestureDetector.OnGestureListener {private int[] IMGs = {R.DRAWABLE.IMG1, r.drawable.img2, R.DRAWABLE.IMG3};p rivate gesturedetector gesturedetector;private viewflipper viewflipper;private Activity mActivity; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview ( R.layout.activity_main); mactivity = This;viewflipper = (viewflipper) Findviewbyid (r.id.viewflipper); gestureDetector = new Gesturedetector (this);//gesture listener for (int i = 0; i < imgs.length; i++) {//Add picture source ImageView IV = new ImageView (this); IV . Setimageresource (Imgs[i]); Iv.setscaleType (ImageView.ScaleType.FIT_XY); Viewflipper.addview (iv, New Layoutparams (Layoutparams.fill_parent, layoutparams.fill_parent));} Viewflipper.setautostart (TRUE); Set AutoPlay function (click event, pre-AutoPlay) Viewflipper.setflipinterval (3000);//3 Seconds interval (Viewflipper.isautostart () &&! Viewflipper.isflipping ()) {viewflipper.startflipping ();}} @Overridepublic boolean ontouchevent (Motionevent event) {//TODO auto-generated method Stubviewflipper.stopflipping (); After clicking the event, stop AutoPlay Viewflipper.setautostart (false); return Gesturedetector.ontouchevent (event); Register Gesture Event}public Boolean ondown (motionevent arg0) {//TODO auto-generated method Stubreturn false;} public boolean onfling (Motionevent E1, motionevent E2, float arg2,float arg3) {if (E2.getx ()-e1.getx () > 120) {//From left Swipe right (left-in-right out) Animation Rinanim = Animationutils.loadanimation (mactivity,r.layout.push_right_in); Swipe right to the left to enter the gradient effect (Alpha 0.1-1.0) Animation Routanim = Animationutils.loadanimation (mactivity,r.layout.push_right_ Out); Swipe right to the right to slide the gradient effect (Alpha 1.0-> 0.1) viewflipper.setinanimation (Rinanim); viewflipper.setoutanimation (Routanim); viewflipper.showprevious (); return true;} else if (E2.getx ()-E1.getx () <-120) {//swipe from right to left (right-hand out) Animation Linanim = Animationutils.loadanimation (mactivity,r.la YOUT.PUSH_LEFT_IN); Swipe left to enter the gradient effect (Alpha 0.1-1.0) Animation Loutanim = Animationutils.loadanimation (Mactivity,r.layout.push_left_ Out); Swipe left to slide the gradient effect (Alpha 1.0-0.1) viewflipper.setinanimation (Linanim); viewflipper.setoutanimation (Loutanim); Viewflipper.shownext (); return true;} return true;} public void onlongpress (Motionevent arg0) {//TODO auto-generated method Stub}public boolean onscroll (motionevent arg0, Mo Tionevent arg1, float arg2,float arg3) {//TODO auto-generated method Stubreturn false;} public void onshowpress (Motionevent arg0) {//TODO auto-generated method Stub}public boolean onsingletapup (motionevent ar G0) {//TODO auto-generated method Stubreturn false;}}

2.active_main.xml:

<?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:o rientation= "vertical" >        <viewflipper          android:id= "@+id/viewflipper"          android:layout_width= "fill _parent "          android:layout_height=" fill_parent "/>    </LinearLayout>  

Here's a look at four animated files, very simple.

1.push_left_in.xml

<?xml version= "1.0" encoding= "Utf-8"?> <set    xmlns:android= "http://schemas.android.com/apk/res/ Android ">        <translate            android:duration=" android:fromxdelta= "            100%p"            Android:toxdelta = "0"/>  <!--displacement--        <alpha            android:duration= "            android:fromalpha=" 0.1            " Android:toalpha= "1.0"/> <!--gradients    

2.push_left_out.xml

<?xml version= "1.0" encoding= "Utf-8"?> <set    xmlns:android= "http://schemas.android.com/apk/res/ Android ">        <translate            android:duration=" android:fromxdelta= "            0"            Android:toxdelta = " -100%p"/>            <alpha            android:duration= "$"            android:fromalpha= "1.0" android:toalpha= "            0.1 "/>    </set>   

3.push_right_in.xml

<?xml version= "1.0" encoding= "Utf-8"?> <set    xmlns:android= "http://schemas.android.com/apk/res/ Android ">        <translate            android:duration=" android:fromxdelta= "            -100%p"            android: Toxdelta= "0"/>            <alpha            android:duration= "$"            android:fromalpha= "0.1" android:toalpha= "            1.0 "/>    </set>  

4.push_right_out.xml

<?xml version= "1.0" encoding= "Utf-8"?> <set    xmlns:android= "http://schemas.android.com/apk/res/ Android ">        <translate            android:duration=" android:fromxdelta= "            0"            Android:toxdelta = "100%p"/>            <alpha            android:duration= "$"            android:fromalpha= "1.0" android:toalpha= "            0.1 "/>    </set>

Run the following example:

Ask for attention, thank you

Android Combat Simple tutorial-12th gun (Viewflipper to achieve the slideshow effect)