本文给大家分享了2款java实现的首页广告图片自动轮播的控件,分别是PC端和移动端的,效果非常不错,有需要的小伙伴可以参考下。
首页图片的轮播
- /**
- * 广告图片自动轮播控件</br>
- *
- */
- public class ImageCycleView extends LinearLayout {
- /**
- * 上下文
- */
- private Context mContext;
- /**
- * 图片轮播视图
- */
- private ViewPager mAdvPager = null;
- /**
- * 滚动图片视图适配
- */
- private ImageCycleAdapter mAdvAdapter;
- /**
- * 图片轮播指示器控件
- */
- private ViewGroup mGroup;
- /**
- * 图片轮播指示个图
- */
- private ImageView mImageView = null;
- /**
- * 滚动图片指示视图列表
- */
- private ImageView[] mImageViews = null;
- /**
- * 图片滚动当前图片下标
- */
- private boolean isStop;
- /**
- * 游标是圆形还是长条,要是设置为0是长条,要是1就是圆形 默认是圆形
- */
- public int stype=1;
- /**
- * @param context
- */
- public ImageCycleView(Context context) {
- super(context);
- }
- /**
- * @param context
- * @param attrs
- */
- @SuppressLint("Recycle")
- public ImageCycleView(Context context, AttributeSet attrs) {
- super(context, attrs);
- mContext = context;
- LayoutInflater.from(context).inflate(R.layout.ad_cycle_view, this);
- mAdvPager = (ViewPager) findViewById(R.id.adv_pager);
- mAdvPager.setOnPageChangeListener(new GuidePageChangeListener());
- // 滚动图片右下指示器视
- mGroup = (ViewGroup) findViewById(R.id.viewGroup);
- }
- /**
- * 触摸停止计时器,抬起启动计时器
- */
- @Override
- public boolean dispatchTouchEvent(MotionEvent event) {
- if(event.getAction()==MotionEvent.ACTION_UP){
- // 开始图片滚动
- startImageTimerTask();
- }else{
- // 停止图片滚动
- stopImageTimerTask();
- }
- return super.dispatchTouchEvent(event);
- }
- /**
- * 装填图片数据
- *
- * @param imageUrlList
- * @param imageCycleViewListener
- */
- public void setImageResources(ArrayList<Integer> imageUrlList ,ImageCycleViewListener imageCycleViewListener,int stype){
- this.stype=stype;
- // 清除
- mGroup.removeAllViews();
- // 图片广告数量
- final int imageCount = imageUrlList.size();
- mImageViews = new ImageView[imageCount];
- for (int i = 0; i < imageCount; i++) {
- mImageView = new ImageView(mContext);
- LayoutParams params=new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
- params.leftMargin=30;
- mImageView.setScaleType(ScaleType.CENTER_CROP);
- mImageView.setLayoutParams(params);
- mImageViews[i] = mImageView;
- if (i == 0) {
- if(this.stype==1)
- // mImageViews[i].setBackgroundResource(R.drawable.banner_dian_focus);
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_focus);//换点
- else
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_focus);
- } else {
- if(this.stype==1)
- // mImageViews[i].setBackgroundResource(R.drawable.banner_dian_blur);
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_blur);
- else
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_blur);
- }
- mGroup.addView(mImageViews[i]);
- }
- mAdvAdapter = new ImageCycleAdapter(mContext, imageUrlList ,imageCycleViewListener);
- mAdvPager.setAdapter(mAdvAdapter);
- mAdvPager.setCurrentItem(Integer.MAX_VALUE/2);
- startImageTimerTask();
- }
- public void setImageResources2(ArrayList<Integer> imageUrlList ,ImageCycleViewListener imageCycleViewListener,int stype){
- this.stype=stype;
- // 清除
- mGroup.removeAllViews();
- // 图片广告数量
- final int imageCount = imageUrlList.size();
- mImageViews = new ImageView[imageCount];
- for (int i = 0; i < imageCount; i++) {
- mImageView = new ImageView(mContext);
- LayoutParams params=new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
- params.leftMargin=30;
- mImageView.setScaleType(ScaleType.CENTER_CROP);
- mImageView.setLayoutParams(params);
- mImageViews[i] = mImageView;
- if (i == 0) {
- if(this.stype==1)
- // mImageViews[i].setBackgroundResource(R.drawable.banner_dian_focus);
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_focus);//换点
- else
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_focus);
- } else {
- if(this.stype==1)
- // mImageViews[i].setBackgroundResource(R.drawable.banner_dian_blur);
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_blur);
- else
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_blur);
- }
- mGroup.addView(mImageViews[i]);
- }
- mAdvAdapter = new ImageCycleAdapter(mContext, imageUrlList ,imageCycleViewListener);
- mAdvPager.setAdapter(mAdvAdapter);
- mAdvPager.setCurrentItem(Integer.MAX_VALUE/2);
- startImageTimerTask();
- }
- /**
- * 图片轮播(手动控制自动轮播与否,便于资源控件)
- */
- public void startImageCycle() {
- startImageTimerTask();
- }
- /**
- * 暂停轮播—用于节省资源
- */
- public void pushImageCycle() {
- stopImageTimerTask();
- }
- /**
- * 图片滚动任务
- */
- private void startImageTimerTask() {
- stopImageTimerTask();
- // 图片滚动
- mHandler.postDelayed(mImageTimerTask, 5000);
- }
- /**
- * 停止图片滚动任务
- */
- private void stopImageTimerTask() {
- isStop=true;
- mHandler.removeCallbacks(mImageTimerTask);
- }
- private Handler mHandler = new Handler();
- /**
- * 图片自动轮播Task
- */
- private Runnable mImageTimerTask = new Runnable() {
- @Override
- public void run() {
- if (mImageViews != null) {
- mAdvPager.setCurrentItem(mAdvPager.getCurrentItem()+1);
- if(!isStop){ //if isStop=true //当你退出后 要把这个给停下来 不然 这个一直存在 就一直在后台循环
- mHandler.postDelayed(mImageTimerTask, 5000);
- }
- }
- }
- };
- /**
- * 轮播图片监听
- *
- * @author minking
- */
- private final class GuidePageChangeListener implements OnPageChangeListener {
- @Override
- public void onPageScrollStateChanged(int state) {
- if (state == ViewPager.SCROLL_STATE_IDLE)
- startImageTimerTask();
- }
- @Override
- public void onPageScrolled(int arg0, float arg1, int arg2) {
- }
- @Override
- public void onPageSelected(int index) {
- index=index%mImageViews.length;
- // 设置当前显示的图片
- // 设置图片滚动指示器背
- if(stype!=1)
- mImageViews[index].setBackgroundResource(R.drawable.cicle_banner_dian_focus);
- else
- mImageViews[index].setBackgroundResource(R.drawable.cicle_banner_dian_focus);
- for (int i = 0; i < mImageViews.length; i++) {
- if (index != i) {
- if(stype!=1)
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_blur);
- else
- mImageViews[i].setBackgroundResource(R.drawable.cicle_banner_dian_blur);
- }
- }
- }
- }
- private class ImageCycleAdapter extends PagerAdapter {
- /**
- * 图片视图缓存列表
- */
- private ArrayList<SmartImageView> mImageViewCacheList;
- /**
- * 图片资源列表
- */
- //private ArrayList<String> mAdList = new ArrayList<String>();
- private ArrayList<Integer> mAdList = new ArrayList<Integer>();
- /**
- * 广告图片点击监听
- */
- private ImageCycleViewListener mImageCycleViewListener;
- private Context mContext;
- // public ImageCycleAdapter(Context context, ArrayList<String> adList , ImageCycleViewListener imageCycleViewListener) {
- // this.mContext = context;
- // this.mAdList = adList;
- // mImageCycleViewListener = imageCycleViewListener;
- // mImageViewCacheList = new ArrayList<SmartImageView>();
- // }
- public ImageCycleAdapter(Context context, ArrayList<Integer> adList , ImageCycleViewListener imageCycleViewListener) {
- this.mContext = context;
- this.mAdList = adList;
- mImageCycleViewListener = imageCycleViewListener;
- mImageViewCacheList = new ArrayList<SmartImageView>();
- }
- @Override
- public int getCount() {
- return Integer.MAX_VALUE;
- }
- @Override
- public boolean isViewFromObject(View view, Object obj) {
- return view == obj;
- }
- @Override
- public Object instantiateItem(ViewGroup container, final int position) {
- int imageUrl = mAdList.get(position%mAdList.size());
- Log.e("imageUrl:",position%mAdList.size()+"--"+imageUrl+"");
- SmartImageView imageView = null;
- if (mImageViewCacheList.isEmpty()) {
- imageView = new SmartImageView(mContext);
- imageView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
- //test
- imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
- }
- else {
- imageView = mImageViewCacheList.remove(0);
- }
- imageView.setTag(imageUrl);
- container.addView(imageView);
- //imageView.setImageUrl(imageUrl);
- imageView.setBackgroundResource(imageUrl);
- // 设置图片点击监听
- imageView.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View v) {
- mImageCycleViewListener.onImageClick(position%mAdList.size(), v);
- }
- });
- return imageView;
- }
- @Override
- public void destroyItem(ViewGroup container, int position, Object object) {
- SmartImageView view = (SmartImageView) object;
- mAdvPager.removeView(view);
- mImageViewCacheList.add(view);
- }
- }
- /**
- * 轮播控件的监听事件
- *
- * @author minking
- */
- public static interface ImageCycleViewListener {
- /**
- * 单击图片事件
- *
- * @param position
- * @param imageView
- */
- public void onImageClick(int position, View imageView);
- }
- }
我们再来看个基于安卓ViewPager的图片轮播控件
- package me.lanfog.myandroid.widget;
- import java.util.ArrayList;
- import java.util.List;
- import android.content.Context;
- import android.os.Handler;
- import android.os.Message;
- import android.support.v4.view.PagerAdapter;
- import android.support.v4.view.ViewPager;
- import android.util.AttributeSet;
- import android.util.Log;
- import android.view.View;
- import android.view.ViewGroup;
- import android.widget.ImageView;
- public class PageFlipper extends ViewPager {
- private String TAG = PageFlipper.class.getSimpleName();
- private List<View> views;
- private PagerAdapter adapter = new PagerAdapter() {
- @Override
- public Object instantiateItem(ViewGroup container, int position) {
- View v = views.get(position);
- container.addView(v);
- return v;
- }
- @Override
- public boolean isViewFromObject(View arg0, Object arg1) {
- return arg0 == arg1;
- }
- @Override
- public int getItemPosition(Object object) {
- return views.indexOf(object);
- }
- @Override
- public void destroyItem(ViewGroup container, int position, Object object) {
- container.removeView((View)object);
- }
- @Override
- public int getCount() {
- return views == null ? 0 : views.size();
- }
- };
- private OnPageChangeListener listener = new OnPageChangeListener() {
- /**
- * 将控件位置转化为数据集中的位置
- */
- public int convert(int position){
- return position == 0 ? views.size()-1 : ( position > views.size() ? 0 : position-1 );
- }
- @Override
- public void onPageSelected(int position) {
- if(listener2 != null){
- listener2.onPageSelected(convert(position));
- }
- }
- @Override
- public void onPageScrolled(int position, float percent, int offset) {
- if(listener2 != null){
- listener2.onPageScrolled(convert(position), percent, offset);
- }
- if(percent == 0){
- if(position == 0) // 切换到倒数第二页
- setCurrentItem(( views.size() - 2 ) % views.size(), false);
- else if(position == views.size() - 1) // 切换到正数第二页
- setCurrentItem(1, false);
- }
- }
- @Override
- public void onPageScrollStateChanged(int state) {
- if(listener2 != null){
- listener2.onPageScrollStateChanged(state);
- }
- switch (state) {
- case SCROLL_STATE_IDLE: // 闲置
- if(!handler.hasMessages(START_FLIPPING))
- handler.sendEmptyMessageDelayed(START_FLIPPING, 3000); // 延时滚动
- break;
- case SCROLL_STATE_DRAGGING: // 拖动中
- handler.sendEmptyMessage(STOP_FLIPPING); // 取消滚动
- break;
- case SCROLL_STATE_SETTLING: // 拖动结束
- break;
- }
- }
- }, listener2;
- private final int START_FLIPPING = 0;
- private final int STOP_FLIPPING = 1;
- private Handler handler = new Handler(){
- public void handleMessage(Message msg) {
- switch (msg.what) {
- case START_FLIPPING:
- if(views.size() > 3) // 因为前后页是辅助页,所以此处3也就是只有1页
- setCurrentItem((getCurrentItem() + 1) % views.size());
- handler.sendEmptyMessageDelayed(START_FLIPPING, 3000); // 延时滚动
- break;
- case STOP_FLIPPING:
- handler.removeMessages(START_FLIPPING);
- break;
- }
- }
- };
- public PageFlipper(Context context, AttributeSet attrs) {
- super(context, attrs);
- init();
- }
- public PageFlipper(Context context) {
- super(context);
- init();
- }
- private void init(){
- setOffscreenPageLimit(1); // 最大页面缓存数量
- setAdapter(adapter); // 适配器
- super.setOnPageChangeListener(listener); // 监听器
- handler.sendEmptyMessageDelayed(START_FLIPPING, 3000); // 延时滚动
- }
- public void setViews(int[] ids){
- this.views = new ArrayList<View>();
- for(int i=0;i<ids.length+2;i++){ // 头部新增一个尾页,尾部新增一个首页
- ImageView iv = new ImageView(getContext());
- iv.setImageResource(ids[i == 0 ? ids.length-1 : ( i > ids.length ? 0 : i-1 )]);
- iv.setScaleType(ImageView.ScaleType.FIT_XY);
- this.views.add(iv);
- }
- setCurrentItem(1); // 首页
- this.adapter.notifyDataSetChanged();
- }
- @Override
- public void setOnPageChangeListener(OnPageChangeListener listener) {
- this.listener2 = listener;
- }
- }
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