//1.MemberDetailActivity
package com.vimems.coach;

import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.ViewPager;
import android.widget.TableLayout;

import com.vimems.Adapter.CustomTrainingFragmentPageAdapter;
import com.vimems.R;

import java.util.ArrayList;
import java.util.List;

import util.BaseActivity;

public class MemberDetailActivity extends BaseActivity {

    private CustomTrainingFragmentPageAdapter pageAdapter;
    private ViewPager viewPager;
    private TabLayout tabLayout;
    
    List<Fragment> fragmentList;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_member_detail);

        // TODO: 2/10/2019 暂时用一个fragment代替
        fragmentList=new ArrayList<>();
        fragmentList.add(new CustomTrainingFragment());
        fragmentList.add(new CustomTrainingFragment());
        fragmentList.add(new CustomTrainingFragment());
        FragmentManager fragmentManager=getSupportFragmentManager();
        pageAdapter=new CustomTrainingFragmentPageAdapter(fragmentManager,fragmentList);
        viewPager=findViewById(R.id.training_mode_viewpager);
        tabLayout=findViewById(R.id.training_mode_tab);
        viewPager.setAdapter(pageAdapter);
        //让TabLayout与viewpager产生联动
        tabLayout.setupWithViewPager(viewPager);
    }
}

//R.layout.activity_member_detail
//包含一个TabLayout和一个ViewPager
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical">
    <TextView
        android:paddingTop="20dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/single_mode"
        android:gravity="center"/>
    <!--todo 可以改为一个TableLa+ViewPage-->

    <android.support.design.widget.TabLayout
        android:id="@+id/training_mode_tab"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMode="fixed"
        app:tabGravity="fill">
    </android.support.design.widget.TabLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/training_mode_viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        >

    </android.support.v4.view.ViewPager>



</android.support.v7.widget.LinearLayoutCompat>

//3CustomTrainingFragment 
package com.vimems.coach;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.vimems.R;

public class CustomTrainingFragment extends Fragment {
    public static final String ARG_PAGE="ARG_PAGE";
    private int mPage;


    //使用newInstance的方式，或者在CustomTrainingFragmentPageAdapter中添加一个列表
//    fragments=new ArrayList<>();
//        //将提前写好三个Fragment添加到集合中
//        fragments.add(new FirstFragment());
//        fragments.add(new SecondFragment());
//        fragments.add(new ThirdFragment());
//    在适配器的构造方法中传入参数fragmentManage、fragments
//    在适配器的getItem方法中return fragments.get(position)
    public static CustomTrainingFragment newInstance(int page){

        Bundle bundle=new Bundle();
        bundle.putInt(ARG_PAGE,page);
        CustomTrainingFragment customTrainingFragment=new CustomTrainingFragment();
        customTrainingFragment.setArguments(bundle);
        return customTrainingFragment;
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mPage=getArguments().getInt(ARG_PAGE);
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.fragment_custom_training,container,false);
        return view;
    }
}

//4.Fragment的布局文件，
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.LinearLayoutCompat
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <android.support.v7.widget.LinearLayoutCompat
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:paddingLeft="10dp">
        <TextView
            android:text="@string/custom_training_options"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center"
            android:textStyle="bold"
            />
        <RadioGroup
            android:id="@+id/custom_training_options"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <RadioButton
                android:id="@+id/custom_training_options_gain_muscle"
                android:text="@string/custom_training_options_gain_muscle"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"/>
            <RadioButton
                android:id="@+id/custom_training_options_lose_fat"
                android:text="@string/custom_training_options_lose_fat"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"/>
            <RadioButton
                android:id="@+id/custom_training_options_shape"
                android:text="@string/custom_training_options_shape"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"/>
            <RadioButton
                android:id="@+id/custom_training_options_recovery"
                android:text="@string/custom_training_options_recovery"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"/>
        </RadioGroup>

    </android.support.v7.widget.LinearLayoutCompat>
    <FrameLayout
        android:id="@+id/custom_training_options_fragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></FrameLayout>

</android.support.v7.widget.LinearLayoutCompat>

//fragment的适配器CustomTrainingFragmentPageAdapter 
package com.vimems.Adapter;

import android.content.Context;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import com.vimems.coach.CustomTrainingFragment;

import java.util.List;

import util.Constants;

public class CustomTrainingFragmentPageAdapter extends FragmentPagerAdapter {

    private List<Fragment> fragmentList;
    private static final String[] tabTitle=Constants.TRAINING_MODE;
    public CustomTrainingFragmentPageAdapter(FragmentManager fm, List<Fragment> fragmentList) {
        super(fm);
        this.fragmentList=fragmentList;
    }

    @Override
    public Fragment getItem(int i) {
//        用自定义Fragment的newInstance()方法返回一个实例
//        return CustomTrainingFragment.newInstance(i);
        
//        自定义的fragment列表
        return fragmentList.get(i);
        //return CustomTrainingFragment.newInstance(i+1);
    }

    @Override
    public int getCount() {
        return tabTitle.length;
    }


// 添加tab的标题title
// 如下这种使用方式好像不行
//    mTabLayout = (TabLayout) findViewById(R.id.tabLayout);
//    TabLayout.Tab tab1 = mTabLayout.newTab()
//                //设置tab项显示的文字
//                .setText("tab1");
//     TabLayout.Tab tab2 = mTabLayout.newTab().setText("tab2");
//    TabLayout.Tab tab3 = mTabLayout.newTab().setText("tab3");
//        mTabLayout.addTab(tab1);
//        mTabLayout.addTab(tab2);
//        mTabLayout.addTab(tab3);
    @Nullable
    @Override
    public CharSequence getPageTitle(int position) {
        return tabTitle[position];
    }
}