package com.bawei.newsapp;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import 
 
android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;
import android.widget.Switch;
import 
 
android.widget.Toast;

import com.andy.library.ChannelActivity;
import com.andy.library.ChannelBean;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

import java.lang.reflect.Type;
import java.util.ArrayList;

/**
 * Created by admin on 2017/12/13.
 */
public class Fragment01 extends 
 
Fragment {

    private View view;
    private ViewPager mVp;
      

private ArrayList<ChannelBean> channelBeens;
   private TabLayout mTl;
    private Gson gson;
    String jsonStr = "";
private FragmentManager fm;
    private ArrayList<Fragment> fragments;
    private ImageButton mImgbtn;

    @Nullable
    @Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        View view = View.inflate(getContext(), R.layout.fragment01_layout, null);

        initView(view);

        fm = getChildFragmentManager();

        channelBeens = new ArrayList<ChannelBean>(); //建立集合

        //準備資料，新增集合   //準備欄目資料
channelBeens.add(new ChannelBean("熱點",true));
        channelBeens.add(new ChannelBean("軍事",true));
        channelBeens.add(new ChannelBean("八卦",true));
        channelBeens.add(new ChannelBean("遊戲",true));
        channelBeens.add(new ChannelBean("寵物",true));
        channelBeens.add(new ChannelBean("汽車",true));
        channelBeens.add(new ChannelBean("熱賣",true));
        channelBeens.add(new ChannelBean("外賣",true));
        channelBeens.add(new ChannelBean("條目1",true));
        channelBeens.add(new ChannelBean("條目2",true));
        channelBeens.add(new ChannelBean("條目3",false));
        channelBeens.add(new ChannelBean("條目4",false));
        channelBeens.add(new ChannelBean("條目5",false));
        channelBeens.add(new ChannelBean("條目6",false));
        channelBeens.add(new ChannelBean("條目7",false));
        channelBeens.add(new ChannelBean("條目8",false));

//把選擇的欄目（true）資料配置給tablayoutfor (int i = 0; i < channelBeens.size(); i++) {  //迴圈選取
            if (channelBeens.get(i).isSelect()){ //判斷是否選中，若選中則新增
mTl.addTab(mTl.newTab().setText(channelBeens.get(i).getName()));
            }


        }
        fragments = new ArrayList<Fragment>();

        //迴圈傳送資料到fragment
for (int i = 0; i < channelBeens.size(); i++) {
            Fragment_test fragment_test = new Fragment_test();

            Bundle b = new Bundle();
            b.putString("title", channelBeens.get(i).getName());

            fragment_test.setArguments(b);

            fragments.add(fragment_test);}

    //給viewpager  新增介面卡mVp.setAdapter(new FragmentPagerAdapter(fm) {
            @Override
public Fragment getItem(int position) {
                return fragments.get(position);
            }

            @Override
public int getCount() {
                return fragments.size();
            }

            @Nullable
            @Override
public CharSequence getPageTitle(int position) {
                String name = channelBeens.get(position).getName();
                return name;
                       }
        });

        mTl.setupWithViewPager(mVp);  //將tablayout 與viewpager  做繫結處理return view;
    }

//呼叫activity中 的回撥方法

// 做更新操作mTl.removeAllTabs();//清空之前的欄目
            //把新選擇的欄目結果更新到tablayout上
gson = new Gson();
            //進行json解析
Type type= new TypeToken<ArrayList<ChannelBean>>(){}.getType();
            channelBeens = gson.fromJson(jsonStr,type);
            //遍歷結果，更新tablayout
for (int i=0;i<channelBeens.size();i++){
                if(channelBeens.get(i).isSelect()){
                    mTl.addTab(mTl.newTab().setText(channelBeens.get(i).getName()));
                }
            }
        }




    }

    private void initView(View view) {
        mVp = (ViewPager) view.findViewById(R.id.vp);
        mTl = (TabLayout) view.findViewById(R.id.tl);
        mImgbtn = (ImageButton) view.findViewById(R.id.imgbtn);

     //這是按鈕點選事件 ，點選按鈕啟動頻道管理
        mImgbtn.setOnClickListener(new View.OnClickListener() {
            @Override
public void onClick(View view) {
                switch (view.getId()){
                    default:
                        break;
                    case R.id.imgbtn:
                        ChannelActivity.startChannelActivity((AppCompatActivity) getContext(),channelBeens);
                        break;


                }
            }
        });

    }
}

效果圖