BaseFragmentPagerAdapter.java
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package com.cnlive.goldenline.ui.adapter;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import java.util.ArrayList;
import java.util.List;
public class BaseFragmentPagerAdapter<T> extends FragmentPagerAdapter {
private ArrayList<T> list = new ArrayList<T>();
private FragmentManager mFragmentManager;
public BaseFragmentPagerAdapter(FragmentManager fm, List<T> list) {
super(fm);
this.mFragmentManager = fm;
for (T item : list)
this.list.add(item);
}
// clear FragmentPageAdapter item state before setting Adapter
public void clearFragmentState(ViewPager container){
if(list == null || container == null) return ;
int viewId = container.getId();
FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
for (int id = 0; id < list.size(); id++) {
String name = "android:switcher:" + viewId + ":" + id;
Fragment fragment = mFragmentManager.findFragmentByTag(name);
if(fragment != null){
fragmentTransaction.remove(fragment);
}
}
fragmentTransaction.commitAllowingStateLoss();
}
@Override
public Fragment getItem(int position) {
return getFragment(position, list.get(position));
}
public Fragment getFragment(int position, T item) {
return null;
}
@Override
public CharSequence getPageTitle(int position) {
return getTitle(position, list.get(position));
}
public CharSequence getTitle(int position, T item) {
return super.getPageTitle(position);
}
@Override
public int getCount() {
if (list != null && list.size() > 0) {
return list.size();
} else {
return 0;
}
}
}