代碼
xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ptr="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.handmark.pulltorefresh.library.PullToRefreshScrollView
android:id="@+id/two_pull"
android:layout_width="match_parent"
android:layout_height="match_parent"
ptr:ptrAnimationStyle="flip"
ptr:ptrDrawable="@drawable/default_ptr_flip"
ptr:ptrHeaderBackground="#383838"
ptr:ptrHeaderTextColor="#FFFFFF">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="@+id/two_vp"
android:layout_width="match_parent"
android:layout_height="200dp"></android.support.v4.view.ViewPager>
<LinearLayout
android:id="@+id/two_lin"
android:layout_width="match_parent"
android:layout_height="wrap_parent"
android:layout_alignBottom="@id/two_vp"
android:gravity="center"
android:orientation="horizontal"></LinearLayout>
</RelativeLayout>
</com.handmark.pulltorefresh.library.PullToRefreshScrollView>
</RelativeLayout>
Java TwoFragment
package com.bawei.text04.fragments;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import com.bawei.text04.R;
import com.bawei.text04.adapter.Two_ImagePager;
import com.handmark.pulltorefresh.library.PullToRefreshScrollView;
import java.util.ArrayList;
import java.util.List;
/**
* Created by sky on 2017/11/15.
*/
public class TwoFragment extends Fragment {
private View v;
private PullToRefreshScrollView rsv;
private ViewPager vp;
private LinearLayout lin;
private List<String> list;
private ArrayList<ImageView> images;//存放小圓點控件的集合
private Handler myHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
//擷取目前正在顯示的頁面
int index = vp.getCurrentItem();
vp.setCurrentItem(index + 1);
//改變小圓點
setSelectedPoint((index + 1) % list.size());
//延遲發送消息
sendEmptyMessageDelayed(1, 2000);
}
};
private int index;
private ListView lv;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
v = View.inflate(getActivity(), R.layout.two, null);
//初始化元件
initView();
//初始化輪播
initvp();
return v;
}
private void initView() {
rsv = v.findViewById(R.id.two_pull);//PullToRefreshScrollView
vp = v.findViewById(R.id.two_vp);//ViewPager
lin = v.findViewById(R.id.two_lin);//小圓點
lv = v.findViewById(R.id.two_lv);//listview
}
/**
* 改變小圓點圖檔
*
* @param index 頁面的下标
*/
private void setSelectedPoint(int index) {
for (int i = 0; i < images.size(); i++) {
if (i == index) {
images.get(i).setImageResource(R.drawable.point_selected);
} else {
images.get(i).setImageResource(R.drawable.point_un_selected);
}
}
}
private void initvp() {
list = new ArrayList<>();
list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151721118&di=649c9a43aed72fbc4d99ec1a031510c6&imgtype=0&src=http%3A%2F%2Fimg.zcool.cn%2Fcommunity%2F015c7d574b9f8f6ac72525aee98351.jpg");
list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151956771&di=0eb6f306991d24b67a13ceb336f80102&imgtype=0&src=http%3A%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F00613def3f1beb7a35ae136341be2b589bc46a2d.jpg_320x200.jpg");
list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151847685&di=c7a4b5d08ec43fa629bcb690039a7629&imgtype=0&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_080625%2F20080625_2e91a10c444877e88827vri2ZKdGMvQo.jpg");
list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151825129&di=70bf74b87d8a15cb91a2d79f15ed0eaf&imgtype=0&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_081016%2F20081016_fee215664d5740e56c13E2YB8giERFEX.jpg");
list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505746504&di=930c4d677a02328a142d6fa85ed14580&imgtype=jpg&er=1&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_090113%2F20090113_6ac58b42bea94f0b318e1B6BZb5lPZl5.jpg");
//初始化小圓點
initDoc();
//設定擴充卡
vp.setAdapter(new Two_ImagePager(getActivity(),list));
//設定目前要顯示的頁面
vp.setCurrentItem(list.size()*10);
//實作自動播放
myHandler.sendEmptyMessageDelayed(1, 2000);
}
private void initDoc() {
images = new ArrayList<>();
for (int i = 0; i < list.size(); i++) {
ImageView imageView = new ImageView(getActivity());
//設定圖檔的縮放模式
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
//設定要顯示的圖檔
if (i == 0) {
imageView.setImageResource(R.drawable.point_selected);
} else {
imageView.setImageResource(R.drawable.point_un_selected);
}
//設定寬度與高度
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(40, 40);
params.setMargins(10, 0, 10, 0);
//添加到底部容器中
lin.addView(imageView, params);
//添加到集合中
images.add(imageView);
}
}
}
Two_ImagePager
package com.bawei.text04.adapter;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.bawei.text04.utils.ImageloaderUtil;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.List;
/**
* Created by sky on 2017/11/16.
*/
public class Two_ImagePager extends PagerAdapter {
Context context;
List<String> list;//網絡圖檔位址
public Two_ImagePager(Context context, List<String> list) {
this.context = context;
this.list = list;
}
@Override
public int getCount() {
return Integer.MAX_VALUE;
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return view==object;
}
@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {
//傳回目前顯示的視圖
ImageView image = new ImageView(context);
image.setScaleType(ImageView.ScaleType.FIT_XY);
//加載網絡的圖檔list.get(position%list.size())
//報錯：ImageLoader must be init with configuration before using---imageloader必須初始化配置使用前
ImageLoader.getInstance().displayImage(list.get(position%list.size()),image, ImageloaderUtil.getImageOptions());
//添加到容器
container.addView(image);
return image;
}
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
container.removeView((View) object);
}
}
![廣告欄使用ViewPager無限滑動的問題[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)