本文实例讲述了Android使用ViewFlipper和GestrueDetector共同实现滑屏效果。分享给大家供大家参考，具体如下：

关于GestureDetector的相关知识，前面已经介绍过了，不懂的大家可以去了解一下。

1.main.xml

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:background="@drawable/bg"

android:orientation="vertical" >

android:id="@+id/viewFlipper1"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:persistentDrawingCache="animation"

android:flipInterval="1000"

android:inAnimation="@anim/push_left_in"

android:outAnimation="@anim/push_left_out"

>

注：layout1和layout2 布局很简单，就是有一个textview和一个button，就不在这里写出了。其中包含了两个特效xml文件，放在res/anim下

1.push_left_in

android:fromXDelta="100%p"

android:toXDelta="0"

android:duration="500"/>

android:fromAlpha="0.0"

android:toAlpha="1.0"

android:duration="500" />

2 push_left_out

android:fromXDelta="0"

android:toXDelta="-100%p"

android:duration="500"/>

android:fromAlpha="1.0"

android:toAlpha="0.0"

android:duration="500" />

主类：

package com.wj.gesture;

import android.app.Activity;

import android.os.Bundle;

import android.view.GestureDetector;

import android.view.GestureDetector.OnDoubleTapListener;

import android.view.GestureDetector.OnGestureListener;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.View.OnTouchListener;

import android.view.animation.AccelerateInterpolator;

import android.view.animation.Animation;

import android.view.animation.TranslateAnimation;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

import android.widget.ViewFlipper;

public class GestureDetectorTest extends Activity implements OnClickListener,OnTouchListener,OnGestureListener,OnDoubleTapListener{

GestureDetector gestureDetector;

private Button next = null,up = null;

private ViewFlipper flipper = null;

private static final int FLING_MIN_DISTANCE = 100;

private static final int FLING_MIN_VELOCITY = 200;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

initview();

setListener();

}

private void initview(){

gestureDetector = new GestureDetector(this);

next = (Button)this.findViewById(R.id.button1);

up = (Button)this.findViewById(R.id.button2);

next.setOnClickListener(this);

up.setOnClickListener(this);

flipper = (ViewFlipper)this.findViewById(R.id.viewFlipper1);

flipper.setLongClickable(true);

}

private void setListener(){

flipper.setOnTouchListener(this);

}

@Override

public boolean onTouch(View v,MotionEvent event) {

//Toast.makeText(this,"ontouch",1000).show();

return gestureDetector.onTouchEvent(event);

}

@Override

public boolean onDown(MotionEvent e) {

// TODO Auto-generated method stub

return false;

}

@Override

public void onShowPress(MotionEvent e) {

// TODO Auto-generated method stub

}

@Override

public boolean onSingleTapUp(MotionEvent e) {

// TODO Auto-generated method stub

return false;

}

@Override

public boolean onScroll(MotionEvent e1,MotionEvent e2,float distanceX,float distanceY) {

return false;

}

@Override

public void onLongPress(MotionEvent e) {

// TODO Auto-generated method stub

}

@Override

public boolean onFling(MotionEvent e1,float velocityX,float velocityY) {

if (e1.getX()-e2.getX()>FLING_MIN_DISTANCE&&Math.abs(velocityX)>FLING_MIN_VELOCITY) {

flipper.setInAnimation(inFromRightAnimation());

flipper.setOutAnimation(outToLeftAnimation());

flipper.showNext();

}else if (e2.getX()-e1.getX()>FLING_MIN_DISTANCE&&Math.abs(velocityX) > FLING_MIN_VELOCITY) {

flipper.setInAnimation(inFromLeftAnimation());

flipper.setOutAnimation(outToRightAnimation());

flipper.showPrevIoUs();

}

return false;

}

protected Animation inFromRightAnimation() {

Animation inFromRight = new TranslateAnimation(

Animation.RELATIVE_TO_PARENT,+1.0f,Animation.RELATIVE_TO_PARENT,0.0f,0.0f);

inFromRight.setDuration(500);

inFromRight.setInterpolator(new AccelerateInterpolator());

return inFromRight;

}

protected Animation outToLeftAnimation() {

Animation outtoLeft = new TranslateAnimation(

Animation.RELATIVE_TO_PARENT,-1.0f,0.0f);

outtoLeft.setDuration(500);

outtoLeft.setInterpolator(new AccelerateInterpolator());

return outtoLeft;

}

protected Animation inFromLeftAnimation() {

Animation inFromLeft = new TranslateAnimation(

Animation.RELATIVE_TO_PARENT,0.0f);

inFromLeft.setDuration(500);

inFromLeft.setInterpolator(new AccelerateInterpolator());

return inFromLeft;

}

protected Animation outToRightAnimation() {

Animation outtoRight = new TranslateAnimation(

Animation.RELATIVE_TO_PARENT,0.0f);

outtoRight.setDuration(500);

outtoRight.setInterpolator(new AccelerateInterpolator());

return outtoRight;

}

@Override

public boolean onSingleTapConfirmed(MotionEvent e) {

// TODO Auto-generated method stub

return false;

}

@Override

public boolean onDoubleTap(MotionEvent e) {

// TODO Auto-generated method stub

return false;

}

@Override

public boolean onDoubleTapEvent(MotionEvent e) {

// TODO Auto-generated method stub

return false;

}

@Override

public void onClick(View v) {

if (v==next) {

flipper.showNext();

}else{

flipper.showPrevIoUs();

}

}

}

希望本文所述对大家Android程序设计有所帮助。

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