均属于笔记，仅供个人参考，有问题欢迎指正
主要用于熟悉一些概念
1，广告信息实体类
/**
* 描述：广告信息</br>
*/
public class ADInfo implements Serializable{
private static final long serialVersionUID = 1L;
//图片路径
String PictureUrl;
//链接路径
String ActionUrl;
//广告描述
String AdName;
public String getPictureUrl() {
return PictureUrl;
}
public void setPictureUrl(String pictureUrl) {
PictureUrl = pictureUrl;
}
public String getActionUrl() {
return ActionUrl;
}
public void setActionUrl(String actionUrl) {
ActionUrl = actionUrl;
}
public String getAdName() {
return AdName;
}
public void setAdName(String adName) {
AdName = adName;
}
}
2，自定义广告栏布局
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ad_rl"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.ViewPager
android:id="@+id/pager_banner"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</android.support.v4.view.ViewPager>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#33000000"
android:orientation="vertical" >
<TextView
android:id="@+id/image_desc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/app_name"
android:textColor="@android:color/white"
android:textSize="18sp" />
<LinearLayout
android:id="@+id/point_group"
android:layout_width="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_height="wrap_content"
android:orientation="horizontal">
</LinearLayout>
</LinearLayout>
</RelativeLayout>
3，自定义banner
public class ImageCycleView extends LinearLayout {
/**
* 上下文
*/
private Context mContext;
/**
* 数据
*/
private List<ADInfo> infodatas = new ArrayList<>();
/**
* 图片轮播视图
*/
private ViewPager pager_banner;
/**
* 滚动图片视图适配器
*/
private ImageCycleAdapter mAdvAdapter;
/**
* 广告描述文本区
*/
private TextView image_desc;
/**
* 图片轮播指示器控件
*/
private LinearLayout point_group;
/**
* 滚动图片指示器-视图列表
*/
private ArrayList<ImageView> mImageViews = new ArrayList<>();
/**
* 手机密度
*/
private float mScale;
/**
* @param context
*/
public ImageCycleView(Context context) {
super(context);
}
/**
* @param context
* @param attrs
*/
public ImageCycleView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
mScale = context.getResources().getDisplayMetrics().density;
View view = LayoutInflater.from(context).inflate(R.layout.view_banner_content, this);
pager_banner = (ViewPager) view.findViewById(R.id.pager_banner);
pager_banner.setOnPageChangeListener(new GuidePageChangeListener());
pager_banner.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_UP:
// 开始图片滚动
startImageTimerTask();
break;
default:
// 停止图片滚动
stopImageTimerTask();
break;
}
return false;
}
});
// 滚动图片右下指示器视图
point_group = (LinearLayout) view.findViewById(R.id.point_group);
image_desc = (TextView) view.findViewById(R.id.image_desc);
}
/**
* 装填图片数据
*
* @param infoList
* @param imageCycleViewListener
*/
public void setImageResources(List<ADInfo> infoList, ImageCycleViewListener imageCycleViewListener) {
// 清除所有子视图
point_group.removeAllViews();
mImageViews.clear();
//为了平滑滑动
infodatas = infoList;
for (int i = 0; i < infodatas.size(); i++) {
ImageView mImageView = new ImageView(mContext);
int imageParams = (int) (mScale * 20 + 0.5f);// XP与DP转换，适应不同分辨率
int imagePadding = (int) (mScale * 5 + 0.5f);
LayoutParams layout = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
layout.setMargins(3, 0, 3, 0);
mImageView.setLayoutParams(layout);
if (i == 0) {
mImageView.setBackgroundResource(R.drawable.icon_point_pre);
} else {
mImageView.setBackgroundResource(R.drawable.icon_point);
}
mImageViews.add(mImageView);
point_group.addView(mImageView);
}
image_desc.setText(infodatas.get(0).getAdName());
mAdvAdapter = new ImageCycleAdapter(mContext, imageCycleViewListener);
pager_banner.setAdapter(mAdvAdapter);
//为了平滑滑动
pager_banner.setCurrentItem(Integer.MAX_VALUE/2 - (Integer.MAX_VALUE/2 % infodatas.size())) ;
startImageTimerTask();
}
/**
* 开始轮播(手动控制自动轮播与否，便于资源控制)
*/
public void startImageCycle() {
startImageTimerTask();
}
/**
* 暂停轮播——用于节省资源
*/
public void pushImageCycle() {
stopImageTimerTask();
}
/**
* 开始图片滚动任务
*/
private void startImageTimerTask() {
stopImageTimerTask();
// 图片每3秒滚动一次
mHandler.postDelayed(mImageTimerTask, 3000);
}
/**
* 停止图片滚动任务
*/
private void stopImageTimerTask() {
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) {
// 下标等于图片列表长度说明已滚动到最后一张图片,重置下标
if (pager_banner.getCurrentItem()+1 > Integer.MAX_VALUE) {
pager_banner.setCurrentItem(0);
}else{
pager_banner.setCurrentItem(pager_banner.getCurrentItem()+1);
}
}
}
};
/**
* 轮播图片状态监听器
*
* @author minking
*/
private final class GuidePageChangeListener implements OnPageChangeListener {
@Override
public void onPageScrollStateChanged(int state) {
if (state == ViewPager.SCROLL_STATE_IDLE)
startImageTimerTask(); // 开始下次计时
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageSelected(int index) {
//为了平滑滑动
index = index % infodatas.size();
//设置文字描述内容
image_desc.setText(infodatas.get(index).getAdName());
for (int i = 0; i < mImageViews.size(); i++) {
if (i == index) {
mImageViews.get(i).setBackgroundResource(R.drawable.icon_point_pre);
}else{
mImageViews.get(i).setBackgroundResource(R.drawable.icon_point);
}
}
}
}
private class ImageCycleAdapter extends PagerAdapter {
/**
* 图片视图缓存列表
*/
private ArrayList<ImageView> mImageViewCacheList;
/**
* 广告图片点击监听器
*/
private ImageCycleViewListener mImageCycleViewListener;
private Context mContext;
public ImageCycleAdapter(Context context, ImageCycleViewListener imageCycleViewListener) {
mContext = context;
mImageCycleViewListener = imageCycleViewListener;
mImageViewCacheList = new ArrayList<ImageView>();
}
@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, int position) {
final int realposition = position % infodatas.size();
String imageUrl = infodatas.get(realposition).getPictureUrl();
ImageView imageView = null;
if (mImageViewCacheList.isEmpty()) {
imageView = new ImageView(mContext);
imageView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
} else {
imageView = mImageViewCacheList.remove(0);
}
// 设置图片点击监听
imageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mImageCycleViewListener.onImageClick(infodatas.get(realposition),realposition, v);
}
});
imageView.setTag(imageUrl);
container.addView(imageView);
mImageCycleViewListener.displayImage(imageUrl, imageView);
return imageView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
ImageView view = (ImageView) object;
container.removeView(view);
mImageViewCacheList.add(view);
}
}
/**
* 轮播控件的监听事件
*
* @author minking
*/
public static interface ImageCycleViewListener {
/**
* 加载图片资源
*
* @param imageURL
* @param imageView
*/
public void displayImage(String imageURL, ImageView imageView);
/**
* 单击图片事件
*
* @param postion
* @param imageView
*/
public void onImageClick(ADInfo info, int postion, View imageView);
}
}
4，使用方式
imagec.setImageResources(infos, mAdCycleViewListener);
private ImageCycleView.ImageCycleViewListener mAdCycleViewListener = new ImageCycleView.ImageCycleViewListener() {
@Override
public void onImageClick(ADInfo info, int position, View imageView) {
String Footname = info.getActionUrl();
FootBean footBean = DBClient.getInstance(context).queryFootByFootName(Footname);
Intent intent = new Intent(context,ShowFootActivity.class);
intent.putExtra("footdata",footBean);
startActivity(intent);
}
@Override
public void displayImage(String imageURL, ImageView imageView) {
imageView.setBackgroundResource(Integer.parseInt(imageURL));
}
};
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