安卓viewpager改变适配器 [英] android viewpager change adapter

问题描述

我正在开发一个ViewPager横向滚动表的应用程序，有时我需要更改适配器加载不同的表。 我试着做到以下几点：

I'm developing an app with a ViewPager for lateral scrolling tables, sometimes i need to change the adapter to load a different set of tables. I've tried to do the following:

mViewPager.setAdapter(new pagerAdapterPushed(getSupportFragmentManager()));
mViewPager.getAdapter().notifyDataSetChanged();
indicator.setViewPager(mViewPager);
indicator.invalidate();
mViewPager.invalidate();

但它总是刷新previous数据。是不是不可能性改变ViewPager的适配器？

but it always reload the previous data. Isn't it possibile to change the adapter of a ViewPager?

推荐答案

酷似我的应用程序在做什么...

Exactly like my APP doing...

有关变化ViewPagerAdapter，我所做的是：

For change ViewPagerAdapter, what I did is :

1. 清除所有碎片电流适配器内部
2. 设置当前适配器为null

3. 指定为ViewPager新adpater

1. Clear all Fragments inside current adapter
2. Set current adapter to null

3. Assign new adpater for ViewPager

/* Clear all Fragments inside current adapter */
public class MyPagerAdapter extends FragmentPagerAdapter
{
  private ArrayList<Fragment> fragments=new ArrayList<Fragment>();
  //...some stuff

  public void clearAll() //Clear all page
  {
    for(int i=0; i<fragments.size(); i++)
    fragMan.beginTransaction().remove(fragments.get(i)).commit();
    fragments.clear();
  }
}

/* Set current adapter to null */
Constants.VP.removeAllViews();
Constants.VP.setAdapter(null);

/* Assign new adpater for ViewPager */
Constants.PAGER=new MyewPagerAdapter(getSupportFragmentManager());
Constants.VP.setAdapter(Constants.PAGER);

希望它帮助〜

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