private void InitViewPager(View parentView) {
mPager = (ViewPager) parentView.findViewById(R.id.vPager);
fragmentsList = new ArrayList<Fragment>();
fragment1 = new SortHotFragment();
fragment2 = new SortNewFragment();
fragmentsList.add(fragment1);
fragmentsList.add(fragment2);
mPager.setAdapter(new MyFragmentPagerAdapter(getActivity().getSupportFragmentManager(), fragmentsList));
mPager.setCurrentItem(0);
mPager.setOnPageChangeListener(new MyOnPageChangeListener());
}
解决方法为第二层的fragment中getSupportFragmentManager()使用getChildFragmentManager(),代替就可以了。
使用viewPager类似ios tabbar布局解决切换时界面销毁的问题可以使用
viewPager.setOffscreenPageLimit(2);
viewPager+fragment刷新不生效的解决办法:
package com.hortor.officecloud.ui;
import java.util.ArrayList;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
publicclass FragmentVPAdapter extends FragmentPagerAdapter {
private ArrayList<Fragment> fragments;
private FragmentManager fm;
public FragmentVPAdapter(FragmentManager fm, ArrayList<Fragment> fragments) {
super(fm);
this.fm = fm;
this.fragments = fragments;
}
publicvoid setFragments(ArrayList<Fragment> fragments) {
if(this.fragments != null){
FragmentTransaction ft = fm.beginTransaction();
for(Fragment f:this.fragments){
ft.remove(f);
}
ft.commit();
ft=null;
fm.executePendingTransactions();
}
this.fragments = fragments;
notifyDataSetChanged();
}
@Override
publicint getItemPosition(Object object) {
return POSITION_NONE;
}
@Override
public Fragment getItem(int arg0) {
return fragments.get(arg0);
}
@Override
publicint getCount() {
return fragments.size();
}
}