先来看看效果吧，Android仿京东快报信息滚动效果，具体内容如下

(截图效果不是很好，但是差不多出来了)

代码：

package com.test.scrolltransptoolbar;

import android.content.Context;

import android.graphics.Color;

import android.os.Handler;

import android.text.TextUtils;

import android.util.AttributeSet;

import android.util.TypedValue;

import android.view.GestureDetector;

import android.view.Gravity;

import android.view.MotionEvent;

import android.view.View;

import android.view.ViewGroup;

import android.view.animation.AnimationUtils;

import android.widget.TextView;

import android.widget.ViewFlipper;

import java.util.List;

/**

* Created by Administrator on 2017/8/31.

*/

public class JinDongKuaiBaoView extends ViewFlipper implements View.OnClickListener, View.OnTouchListener {

private Context context;

private List mNotices;

public final static int SCROLL_TYPE_VERTICAL = 0;

public final static int SCROLL_TYPE_HORIZONTAL = 1;

private GestureDetector mGestureDetector;

public static final int FLING_MIN_DISTANCE = 80;

public static final int FLING_MIN_VELOCITY = 120;

private boolean isFling=false;

public JinDongKuaiBaoView(Context context) {

super(context);

}

Handler handler=new Handler();

public JinDongKuaiBaoView(Context context, AttributeSet attrs) {

super(context, attrs);

init(context);

}

private void init(Context context) {

// mGestureDetector = new GestureDetector(new simpleGestureListener());

this.context = context;

// 轮播间隔时间为3s

setFlipInterval(3000);

// 内边距5dp

setPadding(dp2px(5f), dp2px(5f), dp2px(5f), dp2px(5f));

setScrollType(SCROLL_TYPE_VERTICAL);

// setOnTouchListener(this);

}

private int dp2px(float dpValue) {

return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,

dpValue,

context.getResources().getDisplayMetrics());

}

public void setScrollType(int type) {

clearAnimation();

switch (type) {

case SCROLL_TYPE_VERTICAL://垂直滚动动画设置

// 设置enter和leave动画

setInAnimation(AnimationUtils.loadAnimation(context, R.anim.notify_in));

setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.notify_out));

break;

case SCROLL_TYPE_HORIZONTAL://水平滚动动画设置

setInAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_in));

setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_out));

break;

default:

break;

}

}

/**

* 添加需要轮播展示的公告

*

* @param notices

*/

public void addNotice(List notices) {

this.mNotices = notices;

removeAllViews();

for (int i = 0; i < mNotices.size(); i++) {

// 根据公告内容构建一个TextView

String notice = notices.get(i);

TextView textView = new TextView(context);

textView.setSingleLine();

textView.setText(notice);

textView.setTextSize(13f);

textView.setEllipsize(TextUtils.TruncateAt.END);

textView.setTextColor(Color.parseColor("#666666"));

textView.setGravity(Gravity.CENTER_VERTICAL);

// 将公告的位置设置为textView的tag方便点击是回调给用户

textView.setTag(i);

textView.setOnClickListener(this);

// 添加到ViewFlipper

JinDongKuaiBaoView.this.addView(textView, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));

}

}

@Override

public void onClick(View v) {

int position = (int) v.getTag();

String notice = (String) mNotices.get(position);

if (mOnNoticeClickListener != null) {

mOnNoticeClickListener.onNotieClick(position, notice);

}

}

// private void ToRightAnimation() {

// clearAnimation();

// setInAnimation(AnimationUtils.loadAnimation(context, R.anim.right_notify_in));

// setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.right_notify_out));

// }

//

// private void ToLeftAnimation() {

// clearAnimation();

// setInAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_in));

// setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_out));

// }

@Override

public boolean onTouch(View v, MotionEvent event) {

mGestureDetector.onTouchEvent(event);

return true ;

}

/**

* 通知点击监听接口

*/

public interface OnNoticeClickListener {

void onNotieClick(int position, String notice);

}

private OnNoticeClickListener mOnNoticeClickListener;

/**

* 设置通知点击监听器

*

* @param onNoticeClickListener 通知点击监听器

*/

public void setOnNoticeClickListener(OnNoticeClickListener onNoticeClickListener) {

mOnNoticeClickListener = onNoticeClickListener;

}

// private class simpleGestureListener extends GestureDetector.SimpleOnGestureListener {

// @Override

// public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {

// isFling=true;

// if (e1.getX() - e2.getX() > FLING_MIN_DISTANCE

// && Math.abs(velocityX) > FLING_MIN_VELOCITY) {

// // 当像左侧滑动的时候

// //设置View进入屏幕时候使用的动画

// //设置View退出屏幕时候使用的动画

// ToLeftAnimation();

// showNext();

// } else if (e2.getX() - e1.getX() > FLING_MIN_DISTANCE

// && Math.abs(velocityX) > FLING_MIN_VELOCITY) {

// // 当像右侧滑动的时候

// ToRightAnimation();

// showPrevious();

// }

// handler.postDelayed(new Runnable() {

// @Override

// public void run() {

// startFlipping();

// }

// },0);

//

// return true;

// }

// }

}

注释掉的内容可以不用管，那是我做其他调试用的

使用方式

package com.test.scrolltransptoolbar;

import android.app.Activity;

import android.os.Bundle;

import android.view.GestureDetector;

import android.view.MotionEvent;

import android.view.View;

import android.widget.Toast;

import java.util.ArrayList;

import java.util.List;

/**

* Created by Administrator on 2017/8/31.

*/

public class ViewFlipperActivity extends Activity implements JinDongKuaiBaoView.OnNoticeClickListener {

private JinDongKuaiBaoView jinDongKuaiBaoView;

private GestureDetector gestureDetector;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_viewflipper);

jinDongKuaiBaoView = (JinDongKuaiBaoView) findViewById(R.id.jindongkuaibaoview);

List notices = new ArrayList<>();

notices.add("大促销下单拆福袋，亿万新年红包随便拿");

notices.add("家电五折团，抢十亿无门槛现金红包");

notices.add("星球大战剃须刀首发送200元代金券");

jinDongKuaiBaoView.setScrollType(JinDongKuaiBaoView.SCROLL_TYPE_HORIZONTAL);

jinDongKuaiBaoView.addNotice(notices);

jinDongKuaiBaoView.startFlipping();

jinDongKuaiBaoView.setOnNoticeClickListener(this);

}

@Override

public void onNotieClick(int position, String notice) {

Toast.makeText(ViewFlipperActivity.this,"position"+position,Toast.LENGTH_LONG).show();

}

}

//设置从左开始滚动还是，水平向上开始滚动

jinDongKuaiBaoView.setScrollType(JinDongKuaiBaoView.SCROLL_TYPE_HORIZONTAL);

//开始滚动的方法

jinDongKuaiBaoView.startFlipping();

// 轮播间隔时间为3s

setFlipInterval(3000);

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。