图书馆:
- https://github.com/chrisbanes/Android-PullToRefresh
- https://github.com/JakeWharton/Android-ViewPagerIndicator
在示例中PullToRefreshListInViewPagerActivity
仅适用于 PageAdapter。
我找不到一种方法来使用它FragmentPageAdapter
。
样本:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ptr_list_in_vp);
mViewPager = (ViewPager) findViewById(R.id.vp_list);
mViewPager.setAdapter(new ListViewPagerAdapter());
}
private class ListViewPagerAdapter extends PagerAdapter {
@Override
public View instantiateItem(ViewGroup container, int position) {
Context context = container.getContext();
PullToRefreshListView plv = (PullToRefreshListView) LayoutInflater.from(context).inflate(
R.layout.layout_listview_in_viewpager, container, false);
ListAdapter adapter = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1,
Arrays.asList(STRINGS));
plv.setAdapter(adapter);
plv.setOnRefreshListener(PullToRefreshListInViewPagerActivity.this);
// Now just add ListView to ViewPager and return it
container.addView(plv, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
return plv;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public int getCount() {
return 3;
}
}
@Override
public void onRefresh(PullToRefreshBase<ListView> refreshView) {
new GetDataTask(refreshView).execute();
}
private static class GetDataTask extends AsyncTask<Void, Void, Void> {
PullToRefreshBase<?> mRefreshedView;
public GetDataTask(PullToRefreshBase<?> refreshedView) {
mRefreshedView = refreshedView;
}
@Override
protected Void doInBackground(Void... params) {
// Simulates a background job.
try {
Thread.sleep(4000);
} catch (InterruptedException e) {
}
return null;
}
@Override
protected void onPostExecute(Void result) {
mRefreshedView.onRefreshComplete();
super.onPostExecute(result);
}
}
}