/* * Created by LuaView. * Copyright (c) 2017, Alibaba Group. All rights reserved. * * This source code is licensed under the MIT. * For the full copyright and license information,please view the LICENSE file in the root directory of this source tree. */ package com.taobao.luaview.view.adapter; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.view.ViewGroup; import com.taobao.luaview.fragment.LVPageFragment; import com.taobao.luaview.userdata.ui.UDViewPager; import org.luaj.vm2.Globals; /** * 支持Fragment的 pager adapter * * @author song * @date 15/9/17 */ public class LVFragmentPagerAdapter extends FragmentPagerAdapter { private static final String TAG = "LVFragmentPagerAdapter"; private UDViewPager mInitProps; private Globals mGlobals; private FragmentManager mFragmentManager; public LVFragmentPagerAdapter(FragmentManager fm, Globals globals, UDViewPager udViewPager) { super(fm); this.mGlobals = globals; this.mInitProps = udViewPager; this.mFragmentManager = fm; } @Override public int getCount() { return this.mInitProps.getPageCount(); } @Override public Fragment getItem(int position) { return new LVPageFragment(this.mGlobals, this.mInitProps, position); } @Override public Object instantiateItem(ViewGroup container, int position) { Fragment fragment = null; if (mFragmentManager != null) { fragment = mFragmentManager.findFragmentByTag(TAG + position); } if (fragment == null) { fragment = (Fragment) super.instantiateItem(container, position); } return fragment; } }