android之ViewFlipper滑屏切换效果
openkk
12年前
设置了三个页面，布局文件如下：
<?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/dbj"> <ViewFlipper android:id="@+id/ViewFlipper" android:layout_width="fill_parent" android:layout_height="fill_parent"> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:text="第 1 页" android:textSize="35dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_x="115dp" android:layout_y="20dp"/> </AbsoluteLayout> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:text="第 2 页" android:textSize="35dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_x="120dp" android:layout_y="20dp"/> </AbsoluteLayout> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:text="第 3 页" android:textSize="35dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_x="120dp" android:layout_y="20dp"/> </AbsoluteLayout> </ViewFlipper> <ImageButton android:layout_width="35dp" android:background="@drawable/pre_button" android:layout_height="40dp" android:id="@+id/preButton1" android:layout_x="101dp" android:layout_y="404dp"> </ImageButton> <ImageButton android:layout_width="40dp" android:background="@drawable/next_button" android:layout_height="40dp" android:id="@+id/nextButton1" android:layout_x="182dp" android:layout_y="405dp"> </ImageButton> </AbsoluteLayout>主程序实现了OnGestureListener 接口，具体如下：
import android.app.Activity; import android.os.Bundle; import android.view.GestureDetector; 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.AnimationUtils; import android.widget.ImageButton; import android.widget.ViewFlipper; /** * ViewFlipperTest.java * @author Cloay * 2011-6-24 */ public class ViewFlipperTest extends Activity implements OnGestureListener { private ViewFlipper flipper; private GestureDetector detector; private ImageButton pre1Button; private ImageButton next1Button; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.zd); pre1Button = (ImageButton)findViewById(R.id.preButton1); pre1Button.setOnTouchListener(new OnTouchListener(){ @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub if(event.getAction()==MotionEvent.ACTION_DOWN){ //按钮按下背景图片 pre1Button.setBackgroundResource(R.drawable.pre_button1); } //按钮up后设置背景图片，并滑动到前一页面 else if(event.getAction()==MotionEvent.ACTION_UP){ pre1Button.setBackgroundResource(R.drawable.pre_button); flipper.setInAnimation(AnimationUtils.loadAnimation(TestFlip.this, R.anim.push_right_in)); flipper.setOutAnimation(AnimationUtils.loadAnimation(TestFlip.this,R.anim.push_right_out)); flipper.showPrevious(); } return false; } }); next1Button = (ImageButton)findViewById(R.id.nextButton1); next1Button.setOnTouchListener(new OnTouchListener(){ @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub if(event.getAction()==MotionEvent.ACTION_DOWN){ next1Button.setBackgroundResource(R.drawable.next_button1); } //按钮up后设置背景图片，并滑动到后一页面 else if(event.getAction()==MotionEvent.ACTION_UP){ next1Button.setBackgroundResource(R.drawable.next_button); flipper.setInAnimation(AnimationUtils.loadAnimation(TestFlip.this, R.anim.push_left_in)); flipper.setOutAnimation(AnimationUtils.loadAnimation(TestFlip.this,R.anim.push_left_out)); flipper.showNext(); } return false; } }); detector = new GestureDetector(this); flipper = (ViewFlipper) this.findViewById(R.id.ViewFlipper); } public boolean onDoubleTap(MotionEvent e) { if(flipper.isFlipping()) { flipper.stopFlipping(); }else { flipper.startFlipping(); } return true; } @Override public boolean onTouchEvent(MotionEvent event) { return this.detector.onTouchEvent(event); } @Override public boolean onDown(MotionEvent e) { // TODO Auto-generated method stub return false; } @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) { //用户按下屏幕，快速移动后松开（就是在屏幕上滑动） //e1:第一个ACTION_DOWN事件（手指按下的那一点） //e2:最后一个ACTION_MOVE事件 （手指松开的那一点） //velocityX:手指在x轴移动的速度 单位：像素/秒 //velocityY:手指在y轴移动的速度 单位：像素/秒 if (e1.getX() - e2.getX() > 60) { this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in)); this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out)); this.flipper.showNext(); return true; } else if (e1.getX() - e2.getX() < -60) { this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in)); this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out)); this.flipper.showPrevious(); return true; } return false; } @Override public void onLongPress(MotionEvent e) { // TODO Auto-generated method stub } @Override public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { // 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; } }测试时，鼠标点击模拟器快速移动松开（就是在屏幕上模拟手指滑动），结果如下： 
转自：http://blog.csdn.net/shang_515/article/details/6782133