android ViewFlipper(翻转视图) 使用

1、布局文件

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.helloword.FlipperActivity" >

   <ViewFlipper
       android:id="@+id/flipper"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"></ViewFlipper>

</RelativeLayout>

2、drawable 图片

3、Activity：

package com.example.helloword;

import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.ViewFlipper;

public class FlipperActivity extends Activity implements View.OnClickListener, GestureDetector.OnGestureListener{

    final int distance = 50;
    
    private Animation[] animations = new Animation[4];
    
    private int[] images = new int[]{
            R.drawable.img0,R.drawable.img1,R.drawable.img2,R.drawable.img3,
            R.drawable.img4
    };
    
    private ViewFlipper flipper ;
    
    private GestureDetector detector;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_flipper);
        
        detector = new GestureDetector(FlipperActivity.this,this);
        flipper = findViewById(R.id.flipper);
        
        for (int i = 0; i < images.length; i++) {
            ImageView img = new ImageView(this);
            img.setImageResource(images[i]);
            flipper.addView(img);
        }
        
        animations[0] = AnimationUtils.loadAnimation(this, R.anim.abc_slide_in_bottom);
        animations[1] = AnimationUtils.loadAnimation(this, R.anim.abc_slide_out_bottom);
        animations[2] = AnimationUtils.loadAnimation(this, R.anim.abc_slide_in_top);
        animations[3] = AnimationUtils.loadAnimation(this, R.anim.abc_slide_out_bottom);
    }

    @Override
    public void onPointerCaptureChanged(boolean hasCapture) {
        // TODO Auto-generated method stub
        
    }

    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        
    }

    @Override
    public boolean onDown(MotionEvent arg0) {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public boolean onFling(MotionEvent arg0, MotionEvent arg1, float arg2,
            float arg3) {
        if(arg0.getY()-arg1.getY()>distance){
            flipper.setInAnimation(animations[2]);
            flipper.setOutAnimation(animations[1]);
            flipper.showPrevious();
            return true;
        }else if(arg1.getY()-arg0.getY()>distance){
            flipper.setInAnimation(animations[0]);
            flipper.setOutAnimation(animations[3]);
            flipper.showNext();
            return true;
        }
        
        return false;
    }

    @Override
    public void onLongPress(MotionEvent arg0) {
        // TODO Auto-generated method stub
        
    }

    @Override
    public boolean onScroll(MotionEvent arg0, MotionEvent arg1, float arg2,
            float arg3) {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public void onShowPress(MotionEvent arg0) {
        // TODO Auto-generated method stub
        
    }

    @Override
    public boolean onSingleTapUp(MotionEvent arg0) {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        // TODO Auto-generated method stub
        return detector.onTouchEvent(event);
    }

    

}