ViewFlipper的简单使用

ViewFlipper经常和Animation结合使用，实现滑动屏幕切换图片的动画效果，直接上代码：

MainActivity：

package com.home.viewflippertest;

import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.view.animation.AnimationUtils;
import android.widget.ViewFlipper;
import android.app.Activity;

public class MainActivity extends Activity {
	private GestureDetector detector;
	private ViewFlipper flipper;
	private int index = 1;// 当前位置

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		flipper = (ViewFlipper) findViewById(R.id.main_vf);
		detector = new GestureDetector(this, new MyGestureListener());
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
		return detector.onTouchEvent(event);
	}

	class MyGestureListener implements OnGestureListener {

		@Override
		public boolean onDown(MotionEvent e) {
			return false;
		}

		@Override
		public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
				float velocityY) {
			if (e1.getX() - e2.getX() > 5) {
				flipper.setInAnimation(AnimationUtils.loadAnimation(
						MainActivity.this, R.anim.push_in_left));
				flipper.setOutAnimation(AnimationUtils.loadAnimation(
						MainActivity.this, R.anim.push_out_left));
				if (index < 5) {
					flipper.showNext();
					index++;
				}
			} else if (e1.getX() - e2.getX() < -5) {
				flipper.setInAnimation(AnimationUtils.loadAnimation(
						MainActivity.this, R.anim.push_in_right));
				flipper.setOutAnimation(AnimationUtils.loadAnimation(
						MainActivity.this, R.anim.push_out_right));
				if (index > 1) {
					flipper.showPrevious();
					index--;
				}
			}
			return false;
		}

		@Override
		public void onLongPress(MotionEvent e) {
		}

		@Override
		public boolean onScroll(MotionEvent e1, MotionEvent e2,
				float distanceX, float distanceY) {
			return false;
		}

		@Override
		public void onShowPress(MotionEvent e) {
		}

		@Override
		public boolean onSingleTapUp(MotionEvent e) {
			return false;
		}
	}
}

main.xml：

动画系列：

push_in_left.xml：

push_out_left.xml：

push_in_right.xml：

push_out_right.xml：