Android Gesture Recognition viewflipper touch Animation

Recently, the viewflipper class was used in the project. It seems that the effect is really amazing. Today I tried to do it myself. It is really good.

First, define viewflipper. XML in layout.

<?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" >    <ViewFlipper        android:id="@+id/viewFlipper1"        android:layout_width="fill_parent"        android:layout_height="fill_parent" >        <ImageView            android:id="@+id/imageView1"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:src="@drawable/b" />         <ImageView            android:id="@+id/imageView2"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:src="@drawable/c" />          <ImageView            android:id="@+id/imageView3"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:src="@drawable/d" />          <ImageView            android:id="@+id/imageView4"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:src="@drawable/f" />         <ImageView            android:id="@+id/imageView5"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:src="@drawable/g" />    </ViewFlipper></LinearLayout>

Viewflipper contains five images for gesture switching.

Public class viewflipperactivity extends activity implements ontouchlistener, android. view. gesturedetector. ongesturelistener {private viewflipper Flipper; listener; private int mcurrentlayoutstate; Private Static final int completion = 80; Private Static final int completion = 150; @ overrideprotected void oncreate (bundle savedinstancestate) {// todo auto-gen Erated method stubsuper. oncreate (savedinstancestate); setcontentview (R. layout. viewflipper); Flipper = (viewflipper) This. findviewbyid (R. id. viewflipper1); // register a class mgesturedetector = new gesturedetector (this) for gesture recognition; // set a listener Flipper for mflipper. setontouchlistener (this); mcurrentlayoutstate = 0; // you can hold down viewflipper for a long time to identify Flipper. setlongclickable (true);}/*** this method is not used in this example. You can specify to jump to a page * @ Param swit Chto */Public void switchlayoutstateto (INT switchto) {While (mcurrentlayoutstate! = Switchto) {If (mcurrentlayoutstate> switchto) {mcurrentlayoutstate --; Flipper. setinanimation (infromleftanimation (); Flipper. setoutanimation (outtorightanimation (); Flipper. showprevious ();} else {mcurrentlayoutstate ++; Flipper. setinanimation (infromrightanimation (); Flipper. setoutanimation (outtoleftanimation (); Flipper. shownext () ;}}/ *** defines the animation effect to enter from the right * @ return */protected animation infromrightanimation () {animation infromright = new translateanimation (animation. relative_to_parent, + 1.0f, animation. relative_to_parent, 0.0f, animation. relative_to_parent, 0.0f, animation. relative_to_parent, 0.0f); infromright. setduration (200); infromright. setinterpolator (New accelerateinterpolator (); Return infromright;}/*** defines the animation effect to exit from the left * @ return */protected animation outtoleftanimation () {animation outtoleft = new translateanimation (animation. relative_to_parent, 0.0f, animation. relative_to_parent,-1.0f, animation. relative_to_parent, 0.0f, animation. relative_to_parent, 0.0f); outtoleft. setduration( 200); outtoleft. setinterpolator (New accelerateinterpolator (); Return outtoleft;}/*** defines the animation effect to enter from the left * @ return */protected animation infromleftanimation () {animation infromleft = new translateanimation (animation. relative_to_parent,-1.0f, animation. relative_to_parent, 0.0f, animation. relative_to_parent, 0.0f, animation. relative_to_parent, 0.0f); infromleft. setduration (200); infromleft. setinterpolator (New accelerateinterpolator (); Return infromleft;}/*** defines the animation effect when exiting from the right side * @ return */protected animation outtorightanimation () {animation outtoright = new translateanimation (animation. relative_to_parent, 0.0f, animation. relative_to_parent, + 1.0f, animation. relative_to_parent, 0.0f, animation. relative_to_parent, 0.0f); outtoright. setduration (1, 200); outtoright. setinterpolator (New accelerateinterpolator (); Return outtoright;} public Boolean ondown (motionevent e) {// todo auto-generated method stubreturn false ;} /** the event is triggered when you press the touch screen and move quickly. * E1: 1st action_down motionevent * E2: The last action_move motionevent * velocityx: The moving speed on the X axis, pixel/Second * velocityy: The moving speed on the Y axis. pixel/Second * trigger condition: * The coordinate displacement of the X axis is greater than that of fling_min_distance, and the moving speed is greater than fling_min_velocity pixels/Second */Public Boolean onfling (motionevent E1, motionevent E2, float velocityx, float velocityy) {If (e1.getx ()-e2.getx ()> fling_min_distance & math. ABS (velocityx)> fling_min_velocity) {// sets the animation Flipper used when the view enters the screen while sliding on the left. setinanimation (infromrightanimation (); // sets the animation Flipper used when the view exits the screen. setoutanimation (outtoleftanimation (); Flipper. shownext ();} else if (e2.getx ()-e1.getx ()> fling_min_distance & math. ABS (velocityx)> fling_min_velocity) {// Flipper when the image slides on the right. setinanimation (infromleftanimation (); Flipper. setoutanimation (outtorightanimation (); Flipper. showprevious ();} return false;} public void onlongpress (motionevent e) {// todo auto-generated method stub} public Boolean onscroll (motionevent E1, motionevent E2, float distancex, float distancey) {// todo auto-generated method stubreturn false;} public void onshowpress (motionevent e) {// todo auto-generated method stub} public Boolean onsingletapup (motionevent E) {// todo auto-generated method stubreturn false;} public Boolean ontouch (view V, motionevent event) {// todo auto-generated method stub // the touch screen event must be handed over to the gesture recognition class for processing (it will be troublesome to handle it by yourself) return mgesturedetector. ontouchevent (event );}}

In this way, you can check the effect.

Because the gesture recognition effect is not very good, you can see the effect after you implement it yourself!