会用到以下的技术：
1、ViewFlipper
2、GestureDetector
3、Animation
主要是这三个类在起作用。
ViewFlipper，不妨把它看做一个容器吧，你可以把许多的View放在这个容器中，让它展示给用户，虽然它每次只展示一个view，我感觉它的用途更好是作为广告展示，比如类似购物网站那样的广告滚动展示。比如可以设置自动播放功能，就可以滚动广告了！
原理：向左向右滑动主要是依赖手势来控制，手势向右滑动就调用 viewFlipper.showNext()方法，同理，向左滑动就会去调用viewFlipper.showPrevious()方法。
效果图如下：
首先在布局文件中添加ViewFlipper的标签：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/pattern1" >
<Button
android:id="@+id/treasure_chest_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:background="@drawable/treasure" />
<ViewFlipper
android:id="@+id/viewflipper"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/treasure_chest_btn" >
</ViewFlipper>
<Button
android:id="@+id/garbage_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@id/viewflipper"
android:background="@drawable/garbage" />
</RelativeLayout>其次是在anim中定义动画：slide_left_in.xml：
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<!--
画面转换位置移动动画效果
开始向左动画
fromXDelta ： 动画开始时 X坐标位置
toXDelta ：动画结束时 X坐标位置
duration ：动画持续时间
-->
<translate
android:duration="800"
android:fromXDelta="100%p"
android:toXDelta="0" />
</set>slide_left_out.xml：
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="800"
android:fromXDelta="0"
android:toXDelta="-100%p" />
</set>slide_right_in.xml：
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="800"
android:fromXDelta="-100%p"
android:toXDelta="0" />
</set>slide_right_out.xml：
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="800"
android:fromXDelta="0"
android:toXDelta="100%p" />
</set>最后是Activity中的实现：
package net.loonggg.demo.slider;
import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.Window;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationSet;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ViewFlipper;
public class MainActivity extends Activity implements OnGestureListener,
OnTouchListener {
private GestureDetector detector;
private ViewFlipper myViewFlipper;
private int[] imgs = { R.drawable.img0, R.drawable.img1, R.drawable.img2,
R.drawable.img3, R.drawable.img4, R.drawable.img5 };
private int displayedChildIndex = 0;
private Button treasure_btn;
private Button garbage_btn;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
myViewFlipper = (ViewFlipper) findViewById(R.id.viewflipper);
treasure_btn = (Button) findViewById(R.id.treasure_chest_btn);
garbage_btn = (Button) findViewById(R.id.garbage_btn);
myViewFlipper.setOnTouchListener(this);
myViewFlipper.setLongClickable(true);// 设置长按事件
// myViewFlipper.setAutoStart(true);// 设置是否自动播放，默认不自动播放
detector = new GestureDetector(this);
addFlipperView();
}
/**
* 向FlipperView中动态添加View
*/
private void addFlipperView() {
for (int i = 0; i < imgs.length; i++) {
View view = LayoutInflater.from(this).inflate(
R.layout.myviewflipper, null);
TextView title = (TextView) view.findViewById(R.id.view_title);
title.setText("头像");
ImageView iv = (ImageView) view.findViewById(R.id.view_image);
iv.setBackgroundResource(imgs[i]);
myViewFlipper.addView(view);
}
}
@Override
public boolean onDown(MotionEvent e) {
return false;
}
@Override
public void onShowPress(MotionEvent e) {
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
return false;
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
float distanceY) {
return false;
}
@Override
public void onLongPress(MotionEvent e) {
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
// 返回当前正在显示的子视图的索引
displayedChildIndex = myViewFlipper.getDisplayedChild();
final ImageView iv = (ImageView) myViewFlipper.getChildAt(
displayedChildIndex).findViewById(R.id.view_image);
if (e2.getX() - e1.getX() >= 100 && e1.getY() - e2.getY() >= 100) {
AnimationSet outAnim = (AnimationSet) AnimationUtils.loadAnimation(
this, R.anim.collect_treasure);
iv.startAnimation(outAnim);
outAnim.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
showNextView();
AnimationSet downAnim = (AnimationSet) AnimationUtils
.loadAnimation(MainActivity.this, R.anim.up_or_down);
treasure_btn.setAnimation(downAnim);
iv.clearAnimation();
}
});
} else if (e1.getX() - e2.getX() >= 100 && e2.getY() - e1.getY() >= 100) {
AnimationSet outAnim = (AnimationSet) AnimationUtils.loadAnimation(
this, R.anim.throw_garbage);
iv.startAnimation(outAnim);
outAnim.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
showNextView();
AnimationSet leftAnim = (AnimationSet) AnimationUtils
.loadAnimation(MainActivity.this,
R.anim.left_or_right);
garbage_btn.setAnimation(leftAnim);
iv.clearAnimation();
}
});
} else if (e1.getX() - e2.getX() >= 100) {
showNextView();
} else if (e2.getX() - e1.getX() >= 100) {
showPreviousView();
}
return false;
}
private void showPreviousView() {
myViewFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
R.anim.slide_right_in));
myViewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
R.anim.slide_right_out));
myViewFlipper.showPrevious();
}
private void showNextView() {
myViewFlipper.setInAnimation(AnimationUtils.loadAnimation(this,
R.anim.slide_left_in));
myViewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,
R.anim.slide_left_out));
myViewFlipper.showNext();
}
@Override
public boolean onTouch(View v, MotionEvent event) {
return detector.onTouchEvent(event);
}
}转载请注明出处：http://blog.csdn.net/loongggdroid/article/details/18262543