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InfiniteViewPager is a modified android ViewPager widget that allows infinite paging and auto-scrolling.

License: MIT License

Java 100.00%

infiniteviewpager's Introduction

InfiniteViewpager

https://github.com/waylife/InfiniteViewPager

中文 English

Function

Automatically scroll to next page
Smoothly scrolls from the end page to the first page,so does first to end.
View reuse support, no worrying about OOM
With indicator support(Modification of ViewpagerIncicator)
Fluid when invoking ViewPager.setCurrentItem(), better than the common solution

Preview

Usage

Almost the same as the viewpager. Below are some steps.

define in xml layout

        <RelativeLayout
            android:layout_width="fill_parent"
            android:layout_height="200dp">

            <com.zanlabs.widget.infiniteviewpager.InfiniteViewPager
                android:id="@+id/viewpager"
                android:layout_width="match_parent"
                android:layout_height="fill_parent"
                android:visibility="visible" />

            <com.zanlabs.widget.infiniteviewpager.indicator.LinePageIndicator
                android:id="@+id/indicator"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                app:fillColor="#e3ffc7"
                app:pageColor="#5fff65" />
        </RelativeLayout>

implement the InfinitePagerAdapter

Similar as the implement of BaseAdapter. You need to overide the getView and getItemCount(not getCount) mehtod.

    @Override
     public View getView(int position, View view, ViewGroup container) {
         ViewHolder holder;
         if (view != null) {
             holder = (ViewHolder) view.getTag();
         } else {
             view = mInflater.inflate(R.layout.item_infinite_viewpager, container, false);
             holder = new ViewHolder(view);
             view.setTag(holder);
         }
         PagerItem item = mList.get(position);
         holder.position = position;
         holder.name.setText(item.getName());
         holder.description.setText(item.getDesc()+"position:"+position);
         Picasso.with(mContext).load(item.getImageUrl()).placeholder(R.mipmap.bg_loding_horizontal).into(holder.image);
         return view;
     }


     @Override
     public int getItemCount() {
         return mList==null?0:mList.size();
     }

setup in activity or fragment.

   @Override
    protected void onCreate(Bundle savedInstanceState) {
        //
        MockPagerAdapter pagerAdapter = new MockPagerAdapter(this);
        pagerAdapter.setDataList(MockDataGenerator.getViewPagerData());
        mViewPager.setAdapter(pagerAdapter);
        mViewPager.setAutoScrollTime(5000);
        mViewPager.startAutoScroll();
        mLineIndicator.setViewPager(mViewPager);
        //
      }

    @Override
    public void onStart() {
        super.onStart();
        if (mViewPager != null)
            mViewPager.startAutoScroll();
    }

    @Override
    public void onStop() {
        if (mViewPager != null)
            mViewPager.stopAutoScroll();
        super.onStop();
    }

More You can refer to the sample project.

Thanks to

https://github.com/JakeWharton/salvage

License

The MIT License.

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infiniteviewpager's Issues

CirclePageIndicator at the last item go to empty before jump to the first item

Hi,

Great library,

I setup the demo sample, and I notice that for LinePageIndicator when transition from first to last or last to first it didn't jump to the empty spot.

However, for the CirclePageIndicator when transition from first to last or last to first it jumps to the empty spot first before move to fist or last.

Is there anyway we can make it smooth without go to empty spot for CirclePageIndicator?

Thank

Unable to view last page from first page

Unable to view last page from first page if the viewpager is not scrolled even once. if the view pager is scrolled once then we are able to view the last page. also can be seen the sample.

Circle Indicator issue

I am using infinite ViewPager inside the fragment that point of time its working fine but the issue come when I am replacing with the another fragment and come back then getting number of circular line indicator became double number (like If first time showing 3 dots after replacing fragment and comeback getting 6 dots of circle) (This issue cumming with both indicator)

infiniteViewpager scroll is not working inside viewpager

I have viewpager with 4 tabs and in one of the tab there is infiniteViewpager. And infiniteViewpager is also there in one of the Fragment of viewpager.

When i user infiniteviewpager in view where there is no viewpager as parent it works fine. But when viewpager is in parent view then it doesn't scroll and resist in scrolling observed.

大神，，怎么在android studio中使用

import module 不行，直接复制文件也不行。。

getItemCount()返回1的话view不响应点击事件，怎么规避下

java.lang.ArithmeticException: divide by zero（getFakeFromReal 有可能会为 0）

在 _FakePositionHelper_ 里有一个方法 _getFakeFromReal_

public static int getFakeFromReal(InfiniteViewPager viewPager, int real) {
    int realAdapterSize = viewPager.getAdapterSize() / MULTIPLIER;
    return real % realAdapterSize;
}

在 ViewPager 嵌套时，切换过快， _realAdapterSize_ 有可能为 0 ，应用会 crash 。报错信息为

java.lang.ArithmeticException: divide by zero

默认的小圆点似乎有一点剃头？

看起来似乎不完整，略有一点点剃头的样子。

set item click listener

how can i set on item click listener for that?

手指按下，再抬起，不会自动滚动

// 代码修改成如下就能满足需求
@OverRide
public boolean onInterceptTouchEvent(MotionEvent ev) {
// to solve conflict with parent ViewGroup
getParent().requestDisallowInterceptTouchEvent(true);
if (this.mAutoScroll || this.mTouchedWhenAutoScroll) {
int action = ev.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
this.mTouchedWhenAutoScroll = true;
stopAutoScroll();
break;
case MotionEvent.ACTION_UP:// 手指抬起后，继续滑动
this.mTouchedWhenAutoScroll = false;
startAutoScroll();
break;
}
}
return super.onInterceptTouchEvent(ev);
}