ViewFlipper实现ViewPager的页面切换效果

时间:2023-03-10 06:04:18
ViewFlipper实现ViewPager的页面切换效果

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" > <ViewFlipper
android:id="@+id/flipper"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</ViewFlipper> </LinearLayout>

MainActivity

package com.example.viewflipper;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.widget.ImageView;
import android.widget.ViewFlipper; public class MainActivity extends Activity {
private ViewFlipper flipper;
private int[] resId = { R.drawable.pic1, R.drawable.pic2, R.drawable.pic3,
R.drawable.pic4 };
private float startX; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
flipper = (ViewFlipper) findViewById(R.id.flipper);
// 动态导入的方式,增加子view
for (int i = 0; i < resId.length; i++) {
flipper.addView(getImageView(resId[i]));
}
// 进入动画--取消自己主动播放功能
// flipper.setInAnimation(this, R.anim.left_in);
// flipper.setOutAnimation(this, R.anim.left_out);
// flipper.setFlipInterval(3000);
// ;
// flipper.startFlipping();
} // 通过id获取图片
private ImageView getImageView(int resId) {
ImageView imageView = new ImageView(this);
// 铺满屏幕
imageView.setBackgroundResource(resId);
return imageView;
} /**
* 处理手势事件
*/
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 获取起始点的x轴的坐标
startX = event.getX();
break; case MotionEvent.ACTION_MOVE: break;
case MotionEvent.ACTION_UP:
// 向右滑动
if (event.getX() > startX + 100) {
flipper.setInAnimation(this, R.anim.left_in);
flipper.setOutAnimation(this, R.anim.rightf_out);
// 显示前一页
flipper.showPrevious();
}
// 向左边滑动
if (event.getX() + 100 < startX) {
flipper.setInAnimation(this, R.anim.right_in);
flipper.setOutAnimation(this, R.anim.left_out);
// 显示前一页
flipper.showNext();
}
break;
default:
break;
}
return super.onTouchEvent(event);
} }

left_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" > <translate
android:duration="1000"
android:fromXDelta="-100%p"
android:toXDelta="0" /> </set>

left_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" > <translate
android:duration="1000"
android:fromXDelta="0"
android:toXDelta="-100%p" /> </set>

right_in.xml

<?

xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" > <translate
android:duration="1000"
android:fromXDelta="100%p"
android:toXDelta="0" /> </set>

rightf_out.xml

<?

xml version="1.0" encoding="utf-8"?

>
<set xmlns:android="http://schemas.android.com/apk/res/android" > <translate
android:duration="1000"
android:fromXDelta="0"
android:toXDelta="100%p" /> </set>