NestedScrollView嵌套ViewPager

效果图

重写ViewPager

package com.kongqw.kbox.view;import android.content.Context;import android.support.v4.view.ViewPager;import android.util.AttributeSet;import android.view.View;public class WrapContentHeightViewPager extends ViewPager {    public WrapContentHeightViewPager(Context context) {        super(context);    }    public WrapContentHeightViewPager(Context context, AttributeSet attrs) {        super(context, attrs);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);        int height = 0;        for (int i = 0; i < getChildCount(); i++) {            View child = getChildAt(i);            child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));            int h = child.getMeasuredHeight();            if (h > height) height = h;        }        heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);        super.onMeasure(widthMeasureSpec, heightMeasureSpec);    }}

XML布局

<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:fitsSystemWindows="true"    tools:context="com.kongqw.kbox.activity.ResumeActivity">    <android.support.design.widget.AppBarLayout        android:id="@+id/app_bar"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:fitsSystemWindows="true"        android:theme="@style/AppTheme.AppBarOverlay">        <android.support.design.widget.CollapsingToolbarLayout            android:id="@+id/toolbar_layout"            android:layout_width="match_parent"            android:layout_height="250dp"            android:fitsSystemWindows="true"            app:contentScrim="?attr/colorPrimary"            app:layout_scrollFlags="scroll|exitUntilCollapsed">            <ImageView                android:layout_width="match_parent"                android:layout_height="match_parent"                android:background="@mipmap/resume" />            <android.support.v7.widget.Toolbar                android:id="@+id/toolbar"                android:layout_width="match_parent"                android:layout_height="?attr/actionBarSize"                app:layout_collapseMode="pin"                app:popupTheme="@style/AppTheme.PopupOverlay"                app:title="Toolbar">            </android.support.v7.widget.Toolbar>        </android.support.design.widget.CollapsingToolbarLayout>        <android.support.design.widget.TabLayout            android:id="@+id/tabLayout"            android:layout_width="match_parent"            android:layout_height="?attr/actionBarSize"            app:tabIndicatorColor="#FFFFFFFF"            app:tabSelectedTextColor="#FF888888"            app:tabTextColor="#FFFFFFFF" />    </android.support.design.widget.AppBarLayout>    <android.support.v4.widget.NestedScrollView        android:id="@+id/nestedScrollView"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:fillViewport="true"        app:layout_behavior="@string/appbar_scrolling_view_behavior">        <com.kongqw.kbox.view.WrapContentHeightViewPager            android:id="@+id/viewPager"            android:layout_width="match_parent"            android:layout_height="wrap_content" />    </android.support.v4.widget.NestedScrollView></android.support.design.widget.CoordinatorLayout>

主类

package com.kongqw.kbox.activity;import android.os.Bundle;import android.support.design.widget.TabLayout;import android.support.v4.view.ViewPager;import android.support.v4.widget.NestedScrollView;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import com.kongqw.kbox.R;import com.kongqw.kbox.adapter.ResumeAdapter;public class ResumeActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_resume);        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);        setSupportActionBar(toolbar);        // 设置返回主页的按钮        getSupportActionBar().setDisplayHomeAsUpEnabled(true);        // TabLayout        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabLayout);        // ViewPager        ViewPager mPager = (ViewPager) findViewById(R.id.viewPager);        ResumeAdapter mPagerAdapter = new ResumeAdapter(getSupportFragmentManager());        mPager.setAdapter(mPagerAdapter);        tabLayout.setupWithViewPager(mPager);        // ViewPager切换时NestedScrollView滑动到顶部        mPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {            @Override            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {            }            @Override            public void onPageSelected(int position) {                ((NestedScrollView) findViewById(R.id.nestedScrollView)).scrollTo(0, 0);            }            @Override            public void onPageScrollStateChanged(int state) {            }        });    }}

Adapter

package com.kongqw.kbox.adapter;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentPagerAdapter;import com.kongqw.kbox.fragment.ResumeBasicFragment;import com.kongqw.kbox.fragment.ResumeProjectsExperienceFragment;import com.kongqw.kbox.fragment.ResumeSkillFragment;import com.kongqw.kbox.fragment.ResumeWorksExperienceFragment;/** * Created by kongqw on 2016/3/7. */public class ResumeAdapter extends FragmentPagerAdapter {    public ResumeAdapter(FragmentManager fm) {        super(fm);    }    @Override    public Fragment getItem(int position) {        Fragment fragment = null;        if (0 == position) {            fragment = new ResumeBasicFragment();        } else if (1 == position) {            fragment = new ResumeSkillFragment();        } else if (2 == position) {            fragment = new ResumeWorksExperienceFragment();        } else if (3 == position) {            fragment = new ResumeProjectsExperienceFragment();        }        return fragment;    }    @Override    public int getCount() {        return 4;    }    @Override    public CharSequence getPageTitle(int position) {        switch (position) {            case 0:                return "TAB 1";            case 1:                return "TAB 2";            case 2:                return "TAB 3";            case 3:                return "TAB 4";        }        return null;    }}