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，加入子view
		for (int i = 0; i < resId.length; i++) {
			flipper.addView(getImageView(resId[i]));
		}
		// 进入动画--取消自动播放功能
		// 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>

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