package com.hdl.widget.CoverFlowViewPager;
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import android.app.Activity;
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import android.content.Context;
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import android.os.Handler;
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import android.support.v4.view.ViewPager;
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import android.util.AttributeSet;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.widget.RelativeLayout;
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import com.hdl.widgetxm.R;
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import java.util.List;
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/**
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* Created by JLChen on 2019/8/22
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*/
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public class HDLCoverFlowViewPager extends RelativeLayout implements ViewPager.OnPageChangeListener {
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private View mLayout;//布局
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private Activity mContext;//上下文
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private ViewPager mViewPager;//viewpager
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private HDLCoverFlowViewPagerAdapter mPagerAdapter;//adapter
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private List<View> mViewsList;//url数组
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private int currentIndex = 0;//当前实际page
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// private int startCurrentIndex = 0;//当前page
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private long secondTime = 0, firstTime = 0;
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//private Timer mTimer=null;//定时器
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//private MyTimerTask mTimerTask=null;
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private Handler mHandler = null;
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private AutoRollRunnable mAutoRollRunnable = null;
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private int mRollTime = 5000;
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// private int resId_piont_press= R.mipmap.ic_banner_point_press;
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// private int resId_piont=R.mipmap.ic_banner_point;
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private boolean isPoint = false;//开启指示器
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private int mScrolledCurrentIndex = 0;
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public static interface OnClickGalleryListener {
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void onGalleryClick(int position);
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void onGalleryPositionChange(int position);
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}
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private OnClickGalleryListener mOnClickGalleryListener;
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public HDLCoverFlowViewPager addGalleryListener(OnClickGalleryListener listener) {
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mOnClickGalleryListener = listener;
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return this;
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}
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//ui更新
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// Handler mHandler=mHandler= new Handler(){
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// public void handleMessage(Message msg) {
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// int index = mViewPager.getCurrentItem()+1;//下一个页
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// mViewPager.setCurrentItem(index);//设置此次要显示的pager
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// currentIndex=index%mList.size();
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// setImageBackground(currentIndex);
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// }
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// };
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public HDLCoverFlowViewPager(Context context) {
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super(context);
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this.mContext = (Activity) context;
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}
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public HDLCoverFlowViewPager(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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this.mContext = (Activity) context;
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}
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public HDLCoverFlowViewPager(Context context, AttributeSet attrs) {
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super(context, attrs);
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this.mContext = (Activity) context;
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}
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/**
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* 初始化viewpager
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*
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* @param list view集合
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* @param isGallery 是否使用3D画廊效果
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*/
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public HDLCoverFlowViewPager initBanner(List<View> list, boolean isGallery) {
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mViewsList = list;
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//引入布局
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mLayout = LayoutInflater.from(mContext).inflate(R.layout.hdl_gallery_banner_view_layout, null);
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mViewPager = (ViewPager) mLayout.findViewById(R.id.hdl_gallery_viewPager);//关闭
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// mLineIndicator = (LinearLayout) mLayout.findViewById(R.id.lineIndicator);
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// //初始化位置
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// currentIndex = startCurrentIndex%mList.size();
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currentIndex = 0;
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mPagerAdapter = new HDLCoverFlowViewPagerAdapter(mViewsList);
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mPagerAdapter.setOnClickViewsListener(new HDLCoverFlowViewPagerAdapter.OnClickViewsListener() {
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@Override
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public void onViewsClick(int position) {
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if (mOnClickGalleryListener != null) {
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mOnClickGalleryListener.onGalleryClick(position);
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}
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}
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});
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mViewPager.setAdapter(mPagerAdapter);
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if (isGallery) {
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mViewPager.setPageTransformer(true, new HDLZoomPageTransformer());
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// mViewPager.setPageTransformer(true, new CoverTransformer(0.8f,0f, 0f,25f));
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}
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mViewPager.setCurrentItem(currentIndex);
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mViewPager.setOffscreenPageLimit(2);//设置预加载的数量，这里设置了2,会预加载中心item左边两个Item和右边两个Item
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mViewPager.addOnPageChangeListener(this);
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return this;
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}
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/**
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* 初始化viewpager
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*
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* @param list view集合
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* @param isGallery 是否使用3D画廊效果
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* @param rotationY 旋转角度
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*/
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public HDLCoverFlowViewPager initBanner(List<View> list, boolean isGallery, float rotationY) {
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mViewsList = list;
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rotationY = dip2px(rotationY);
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//引入布局
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mLayout = LayoutInflater.from(mContext).inflate(R.layout.hdl_gallery_banner_view_layout, null);
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mViewPager = (ViewPager) mLayout.findViewById(R.id.hdl_gallery_viewPager);//关闭
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mPagerAdapter = new HDLCoverFlowViewPagerAdapter(mViewsList);
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mPagerAdapter.setOnClickViewsListener(new HDLCoverFlowViewPagerAdapter.OnClickViewsListener() {
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@Override
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public void onViewsClick(int position) {
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if (mOnClickGalleryListener != null) {
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mOnClickGalleryListener.onGalleryClick(position);
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}
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}
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});
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mViewPager.setAdapter(mPagerAdapter);
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if (isGallery) {
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// mViewPager.setPageTransformer(true, new HDLZoomPageTransformer(alpha));
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mViewPager.setPageTransformer(true, new CoverTransformer(0.3f,0f, 0f, rotationY));
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}
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mViewPager.setCurrentItem(currentIndex);
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mViewPager.setOffscreenPageLimit(2);//设置预加载的数量，这里设置了2,会预加载中心item左边两个Item和右边两个Item
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mViewPager.addOnPageChangeListener(this);
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return this;
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}
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// /**
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// * 添加圆角
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// * @param corners
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// * @return
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// */
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// public HDLGalleryViewPager addRoundCorners(int corners){
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// mPagerAdapter.setmRoundCorners(corners);
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// return this;
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// }
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/**
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* @param columnMargin 两个Page之间的距离
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* @param rowMargin page的外边距
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* 注意当添加了3D画廊效果时,columnMargin尽量设小。应该本是已经进行了x、y的缩放
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*/
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public HDLCoverFlowViewPager addPageMargin(int columnMargin, int rowMargin) {
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mViewPager.setPageMargin(dip2px(columnMargin));
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RelativeLayout.LayoutParams layout = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
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RelativeLayout.LayoutParams.WRAP_CONTENT);
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layout.setMargins(dip2px(rowMargin), 0, dip2px(rowMargin), 0);
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mViewPager.setLayoutParams(layout);
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return this;
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}
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//
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/**
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* 配置完成,将布局添加到父容器
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*/
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public HDLCoverFlowViewPager finishConfig() {
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this.addView(mLayout);
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return this;
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}
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/**
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* 设置是否开始自动轮播，并设置时间间隔
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*/
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public HDLCoverFlowViewPager addStartTimer(int time) {
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mRollTime = time;
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if (mHandler == null) {
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mHandler = new Handler();
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}
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if (mAutoRollRunnable == null) {
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mAutoRollRunnable = new AutoRollRunnable();
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}
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mAutoRollRunnable.start();
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return this;
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}
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// 停止轮播
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public void stopTimer() {
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if (mAutoRollRunnable != null) {
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mAutoRollRunnable.stop();
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}
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}
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private class AutoRollRunnable implements Runnable {
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//是否在轮播的标志
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boolean isRunning = false;
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@Override
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public void run() {
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if (isRunning) {
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int index = mViewPager.getCurrentItem() + 1;//下一个页
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mViewPager.setCurrentItem(index);//设置此次要显示的pager
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currentIndex = index % mViewsList.size();
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// setImageBackground(currentIndex);
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mHandler.postDelayed(this, 1000 * mRollTime);
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}
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}
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public void start() {
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if (!isRunning) {
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isRunning = true;
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mHandler.removeCallbacks(this);
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mHandler.postDelayed(this, 1000 * mRollTime);
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}
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}
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public void stop() {
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if (isRunning) {
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mHandler.removeCallbacks(this);
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isRunning = false;
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}
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}
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}
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/**
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* 根据手机的分辨率从 dp 的单位 转成为 px(像素)
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*/
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public int dip2px(float dpValue) {
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final float scale = mContext.getResources().getDisplayMetrics().density;
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return (int) (dpValue * scale + 0.5f);
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}
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//---------------viewpager滑动事件-----------------
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@Override
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public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
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if(mScrolledCurrentIndex == position) return;
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mScrolledCurrentIndex = position;
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if (mOnClickGalleryListener != null) {
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mOnClickGalleryListener.onGalleryPositionChange(mScrolledCurrentIndex);
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}
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}
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@Override
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public void onPageScrollStateChanged(int state) {
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}
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/**
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* 滑动时同步改变底部小圆点
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*
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* @param position
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*/
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@Override
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public void onPageSelected(int position) {
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currentIndex = position;
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}
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public void updateViewsList(List<View> list){
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mViewsList = list;
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if(mPagerAdapter != null) {
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mPagerAdapter.updateViewsList(mViewsList);
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refreshViewPager();
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}
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}
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private void refreshViewPager(){
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currentIndex = 0;
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mPagerAdapter.notifyDataSetChanged();
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if(mViewsList.size() > 1) {
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mViewPager.setCurrentItem(currentIndex + 1);
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new Handler().postDelayed(new Runnable() {
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@Override
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public void run() {
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mViewPager.setCurrentItem(currentIndex);
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}
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}, 1);
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}
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}
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public void setCurrentItem(int item){
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currentIndex = item;
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mViewPager.setCurrentItem(item);
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}
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}
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