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| 1 | +package com.rae.cnblogs.fragment; |
| 2 | + |
| 3 | +import android.content.Context; |
| 4 | +import android.os.Bundle; |
| 5 | +import android.support.annotation.Nullable; |
| 6 | +import android.support.design.widget.DesignTabLayout; |
| 7 | +import android.support.v4.app.Fragment; |
| 8 | +import android.support.v4.app.FragmentManager; |
| 9 | +import android.support.v4.app.FragmentStatePagerAdapter; |
| 10 | +import android.view.View; |
| 11 | + |
| 12 | +import com.rae.cnblogs.AppRoute; |
| 13 | +import com.rae.cnblogs.R; |
| 14 | +import com.rae.cnblogs.message.TabEvent; |
| 15 | +import com.rae.cnblogs.sdk.bean.BlogType; |
| 16 | +import com.rae.cnblogs.sdk.bean.CategoryBean; |
| 17 | +import com.rae.cnblogs.widget.RaeViewPager; |
| 18 | + |
| 19 | +import org.greenrobot.eventbus.EventBus; |
| 20 | +import org.greenrobot.eventbus.Subscribe; |
| 21 | + |
| 22 | +import butterknife.BindView; |
| 23 | +import butterknife.OnClick; |
| 24 | + |
| 25 | +/** |
| 26 | + * 发现 |
| 27 | + * Created by ChenRui on 2017/10/26 0026 23:29. |
| 28 | + */ |
| 29 | +public class DiscoverFragment extends BaseFragment { |
| 30 | + |
| 31 | + @BindView(R.id.tab_layout) |
| 32 | + DesignTabLayout mTabLayout; |
| 33 | + @BindView(R.id.view_pager) |
| 34 | + RaeViewPager mViewPager; |
| 35 | + private DiscoverFragmentAdapter mAdapter; |
| 36 | + |
| 37 | + public static DiscoverFragment newInstance() { |
| 38 | + return new DiscoverFragment(); |
| 39 | + } |
| 40 | + |
| 41 | + @Override |
| 42 | + protected int getLayoutId() { |
| 43 | + return R.layout.fm_discover; |
| 44 | + } |
| 45 | + |
| 46 | + @Override |
| 47 | + public void onCreate(@Nullable Bundle savedInstanceState) { |
| 48 | + super.onCreate(savedInstanceState); |
| 49 | + EventBus.getDefault().register(this); |
| 50 | + } |
| 51 | + |
| 52 | + @Override |
| 53 | + public void onDestroy() { |
| 54 | + super.onDestroy(); |
| 55 | + EventBus.getDefault().unregister(this); |
| 56 | + } |
| 57 | + |
| 58 | + |
| 59 | + @Override |
| 60 | + public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { |
| 61 | + super.onViewCreated(view, savedInstanceState); |
| 62 | + mAdapter = new DiscoverFragmentAdapter(view.getContext(), getChildFragmentManager()); |
| 63 | + mViewPager.setAdapter(mAdapter); |
| 64 | + // 相互关联 |
| 65 | + mViewPager.addOnPageChangeListener(new DesignTabLayout.TabLayoutOnPageChangeListener(mTabLayout)); |
| 66 | + mTabLayout.addOnTabSelectedListener(new DesignTabLayout.ViewPagerOnTabSelectedListener(mViewPager)); |
| 67 | + mTabLayout.addOnTabSelectedListener(new DefaultOnTabSelectedListener()); |
| 68 | + mTabLayout.getTabAt(0).select(); |
| 69 | + } |
| 70 | + |
| 71 | + |
| 72 | + @OnClick(R.id.img_search) |
| 73 | + public void onSearchClick() { |
| 74 | + int position = mTabLayout.getSelectedTabPosition(); |
| 75 | + if (position == 0) |
| 76 | + AppRoute.jumpToSearchNews(getContext()); |
| 77 | + if (position == 1) |
| 78 | + AppRoute.jumpToSearchKb(getContext()); |
| 79 | + } |
| 80 | + |
| 81 | + @Subscribe |
| 82 | + public void onTabEvent(TabEvent event) { |
| 83 | + |
| 84 | + // 执行刷新动作 |
| 85 | + if (event.getPosition() == 2) { |
| 86 | + BlogTypeListFragment fragment = (BlogTypeListFragment) mAdapter.getItem(mViewPager.getCurrentItem()); |
| 87 | + if (fragment != null && fragment.isAdded() && !fragment.isDetached()) { |
| 88 | + fragment.scrollToTop(); |
| 89 | + } |
| 90 | + } |
| 91 | + } |
| 92 | + |
| 93 | + public static class DiscoverFragmentAdapter extends FragmentStatePagerAdapter { |
| 94 | + |
| 95 | + private final BlogTypeListFragment mNewFragment; |
| 96 | + private final BlogTypeListFragment mKBFragment; |
| 97 | + |
| 98 | + public DiscoverFragmentAdapter(Context context, FragmentManager fm) { |
| 99 | + super(fm); |
| 100 | + CategoryBean kb = new CategoryBean(); |
| 101 | + kb.setType("kb"); |
| 102 | + kb.setName(context.getString(R.string.tab_library)); |
| 103 | + |
| 104 | + CategoryBean news = new CategoryBean(); |
| 105 | + news.setType("news"); |
| 106 | + news.setName(context.getString(R.string.tab_news)); |
| 107 | + |
| 108 | + mNewFragment = BlogTypeListFragment.newInstance(30, news, BlogType.NEWS); |
| 109 | + mKBFragment = BlogTypeListFragment.newInstance(31, kb, BlogType.KB); |
| 110 | + } |
| 111 | + |
| 112 | + @Override |
| 113 | + public Fragment getItem(int position) { |
| 114 | + if (position == 0) |
| 115 | + return mNewFragment; |
| 116 | + else |
| 117 | + return mKBFragment; |
| 118 | + } |
| 119 | + |
| 120 | + @Override |
| 121 | + public int getCount() { |
| 122 | + return 2; |
| 123 | + } |
| 124 | + } |
| 125 | + |
| 126 | + class DefaultOnTabSelectedListener implements DesignTabLayout.OnTabSelectedListener { |
| 127 | + |
| 128 | + @Override |
| 129 | + public void onTabSelected(DesignTabLayout.Tab tab) { |
| 130 | + int count = mTabLayout.getTabCount(); |
| 131 | + for (int i = 0; i < count; i++) { |
| 132 | + DesignTabLayout.Tab tabAt = mTabLayout.getTabAt(i); |
| 133 | + if (tabAt == null) continue; |
| 134 | + tabAt.setTextStyle(tab == tabAt ? 1 : 0); |
| 135 | + } |
| 136 | + } |
| 137 | + |
| 138 | + @Override |
| 139 | + public void onTabUnselected(DesignTabLayout.Tab tab) { |
| 140 | + |
| 141 | + } |
| 142 | + |
| 143 | + @Override |
| 144 | + public void onTabReselected(DesignTabLayout.Tab tab) { |
| 145 | + onTabSelected(tab); |
| 146 | + } |
| 147 | + } |
| 148 | + |
| 149 | +} |
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