Android AppBarLayout+TabLayout+RecyclerView+ViewPager+Fragment

最近有人讓我幫忙實現一個如下圖所示的效果

需求：標題欄本來是在banner的下方，當滑動下面的RecyclerView的時候標題欄會隨着向上移動，但是當標題欄移動到頂部時是要懸浮在頂部，下面無論如何上滑標題攔都不再移動，當向下滑動時知直到出現RecyclerView的第一條時標題欄纔會隨着向下移動。
AppBarLayout 是繼承LinerLayout實現的一個ViewGroup容器組件，它是爲了Material Design設計的App Bar，支持手勢滑動操作。CoordinatorLayout是一個增強型的FrameLayout。它的作用有兩個作爲一個佈局的根佈局最後一個爲子視圖之間相互協調手勢效果的一個協調佈局
爲了達到上面效果圖的手勢動畫效果，我們必須做如下設置，通過app:layout_scrollFlags=”scroll” 屬性來確定哪個組件是可滑動的
設置的layout_scrollFlags有如下幾種選項：
scroll: 所有想滾動出屏幕的view都需要設置這個flag- 沒有設置這個flag的view將被固定在屏幕頂部。 enterAlways: 這個flag讓任意向下的滾動都會導致該view變爲可見，啓用快速“返回模式”。 enterAlwaysCollapsed: 當你的視圖已經設置minHeight屬性又使用此標誌時，你的視圖只能已最小高度進入，只有當滾動視圖到達頂部時才擴大到完整高度。 exitUntilCollapsed: 滾動退出屏幕，最後摺疊在頂端。
我們上面的佈局中給Toolbar設置了app:layout_scrollFlags屬性，因此，Toolbar是可以滾動出屏幕，且向下滾動有可以出現。
具體實現的代碼如下

package com.lyx.demo.fragment;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Toast;


import com.lyx.demo.adapter.MyRecyclerViewAdapter;
import com.lyx.demo.R;
import com.lyx.demo.listener.MyItemClickListener;
import com.lyx.demo.view.LoadMoreRecyclerView;

public class FragmentPopularity extends Fragment {
    private View view;
    private SwipeRefreshLayout swipeRefreshLayout;
    private static FragmentPopularity instance=null;
    public static FragmentPopularity newInstance() {
        if(instance==null){
            instance= new FragmentPopularity();
        }
        return instance;
    }
    public FragmentPopularity(){

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.fragment_layout, container, false);
        final LoadMoreRecyclerView mRecyclerView = (LoadMoreRecyclerView) view.findViewById(R.id.recycler_view);
        mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
        mRecyclerView.setItemAnimator(new DefaultItemAnimator());
        int[]mImgList = new int[]{R.drawable.g1,R.drawable.g2,R.drawable.g3,R.drawable.g4,R.drawable.g5,R.drawable.g6,R.drawable.g7,R.drawable.g8,R.drawable.g9,R.drawable.g10};
        String [] mTag = getActivity().getResources().getStringArray(R.array.test);
        MyRecyclerViewAdapter adapter = new MyRecyclerViewAdapter(getActivity(),mImgList,mTag);
        mRecyclerView.setAdapter(adapter);
        adapter.setOnItemClickListener(new MyItemClickListener() {
            @Override
            public void onItemClick(View view, int postion) {
                Toast.makeText(getActivity(),"test"+postion,Toast.LENGTH_SHORT).show();
            }
        });
        mRecyclerView.setAutoLoadMoreEnable(true);
        mRecyclerView.setLoadMoreListener(new LoadMoreRecyclerView.LoadMoreListener() {
            @Override
            public void onLoadMore() {
                mRecyclerView.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        swipeRefreshLayout.setRefreshing(false);
                        Toast.makeText(getActivity(),"加載更多",Toast.LENGTH_SHORT).show();
                        //TODO 下面註釋掉的代碼中的false是當數據加載完成以後爲false的，然後加載更多的條目就會隱藏。
//                        mRecyclerView.notifyMoreFinish(false);
                    }
                }, 1000);
            }
        });
        swipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.refresh_layout);
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                swipeRefreshLayout.setRefreshing(false);
                Toast.makeText(getActivity(),"刷新",Toast.LENGTH_SHORT).show();
            }
        });
        return view;
    }
}

其他的fragment內容都是複製的這個fragment的
下面的是主activity的

package com.lyx.demo.activities;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.lyx.demo.R;
import com.lyx.demo.adapter.BannerAdapter;
import com.lyx.demo.adapter.MyViewPagerAdapter;
import com.lyx.demo.fragment.FragmentLowPrice;
import com.lyx.demo.fragment.FragmentHighPrice;
import com.lyx.demo.fragment.FragmentPopularity;
import com.lyx.demo.fragment.FragmentSecondsOpen;
import com.lyx.demo.fragment.FragmentNewProduct;
import com.lyx.demo.utils.DensityUtil;

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


public class MainActivity extends AppCompatActivity {
    LinearLayout llIndexContainer;
    private List<String> mADParseArray;
    private final int HOME_AD_RESULT = 1;
    private ViewPager vp_shuffling;
    private Handler mHandler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
                // 廣告
                case HOME_AD_RESULT:
                    vp_shuffling.setCurrentItem(vp_shuffling.getCurrentItem() + 1,
                            true);
                    break;
            }
        };
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        ViewPager mViewPager = (ViewPager) findViewById(R.id.viewpager);
        MyViewPagerAdapter viewPagerAdapter = new MyViewPagerAdapter(getSupportFragmentManager());
        viewPagerAdapter.addFragment(FragmentPopularity.newInstance(), "人氣");//添加Fragment
        viewPagerAdapter.addFragment(FragmentNewProduct.newInstance(), "新品");
        viewPagerAdapter.addFragment(FragmentSecondsOpen.newInstance(), "秒開");
        viewPagerAdapter.addFragment(FragmentHighPrice.newInstance(), "高價");
        viewPagerAdapter.addFragment(FragmentLowPrice.newInstance(), "低價");
        mViewPager.setAdapter(viewPagerAdapter);//設置適配器

        TabLayout mTabLayout = (TabLayout) findViewById(R.id.tabLayout);
        mTabLayout.addTab(mTabLayout.newTab().setText("人氣"));//給TabLayout添加Tab
        mTabLayout.addTab(mTabLayout.newTab().setText("新品"));
        mTabLayout.addTab(mTabLayout.newTab().setText("秒開"));
        mTabLayout.addTab(mTabLayout.newTab().setText("高價"));
        mTabLayout.addTab(mTabLayout.newTab().setText("低價"));
        mTabLayout.setupWithViewPager(mViewPager);//給TabLayout設置關聯ViewPager，如果設置了ViewPager，那麼ViewPagerAdapter中的getPageTitle()方法返回的就是Tab上的標題
    }

    private void initView() {
        vp_shuffling = (ViewPager) findViewById(R.id.vp_shuffling);
        // 廣告數據
        llIndexContainer = (LinearLayout)findViewById(R.id.ll_index_container);
        mADParseArray = new ArrayList<String>();
        mADParseArray
                .add("http://m.easyto.com/m/zhulifuwu_banner.jpg");
        mADParseArray
                .add("http://m.easyto.com/m/japan/images/banner_3y_new.jpg");
        mADParseArray
                .add("http://m.easyto.com/m/japan/images/banner_5y_new.jpg");
        vp_shuffling.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

            @Override
            public void onPageSelected(int position) {
                refreshPoint(position % mADParseArray.size());
                if (mHandler.hasMessages(HOME_AD_RESULT)) {
                    mHandler.removeMessages(HOME_AD_RESULT);
                }
                mHandler.sendEmptyMessageDelayed(HOME_AD_RESULT, 3000);
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {
            }

            @Override
            public void onPageScrollStateChanged(int arg0) {
                if (ViewPager.SCROLL_STATE_DRAGGING == arg0
                        && mHandler.hasMessages(HOME_AD_RESULT)) {
                    mHandler.removeMessages(HOME_AD_RESULT);
                }
            }
        });
        BannerAdapter adapter = new BannerAdapter(MainActivity.this, mADParseArray);
        vp_shuffling.setAdapter(adapter);
        addIndicatorImageViews(mADParseArray.size());
        vp_shuffling.setCurrentItem(mADParseArray.size() * 1000, false);
        // 自動輪播線程
        mHandler.sendEmptyMessageDelayed(HOME_AD_RESULT, 3000);
    }
    // 添加指示圖標
    private void addIndicatorImageViews(int size) {
        llIndexContainer.removeAllViews();
        for (int i = 0; i < size; i++) {
            ImageView iv = new ImageView(MainActivity.this);
            LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(DensityUtil.dip2px(MainActivity.this, 5), DensityUtil.dip2px(MainActivity.this, 5));
            if (i != 0) {
                lp.leftMargin = DensityUtil.dip2px(MainActivity.this, 7);
            }
            iv.setLayoutParams(lp);
            iv.setBackgroundResource(R.drawable.xml_round_orange_grey_sel);
            iv.setEnabled(false);
            if (i == 0) {
                iv.setEnabled(true);
            }
            llIndexContainer.addView(iv);
        }
    }
    // 爲ViewPager設置監聽器
    private void refreshPoint(int position) {
        if (llIndexContainer != null) {
            for (int i = 0; i < llIndexContainer.getChildCount(); i++) {
                llIndexContainer.getChildAt(i).setEnabled(false);
                if (i == position) {
                    llIndexContainer.getChildAt(i).setEnabled(true);
                }
            }
        }
    }
}

主activity的佈局爲

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/coordinator_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true">
        <RelativeLayout
            android:id="@+id/rel"
            app:layout_scrollFlags="scroll"
            android:layout_width="match_parent"
            android:layout_height="180dp">
            <android.support.v4.view.ViewPager
                android:background="#91deca"
                android:id="@+id/vp_shuffling"
                android:layout_width="match_parent"
                android:layout_height="match_parent"/>

            <LinearLayout
                android:id="@+id/ll_index_container"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                android:background="@drawable/home_banner_index_mask"
                android:gravity="center_horizontal"
                android:orientation="horizontal"
                android:paddingBottom="5dp"
                android:paddingTop="5dp"/>
        </RelativeLayout>
        <android.support.design.widget.TabLayout
            android:id="@+id/tabLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#91deca"
            app:tabGravity="fill"
            app:tabMode="fixed"
            app:tabSelectedTextColor="#ff0000"
            app:tabTextColor="#ffffff" />
    </android.support.design.widget.AppBarLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:scrollbars="none"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
        <android.support.v4.view.ViewPager
            android:id="@+id/viewpager"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </LinearLayout>

</android.support.design.widget.CoordinatorLayout>

fragment的佈局爲

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
   <android.support.v4.widget.SwipeRefreshLayout
       android:id="@+id/refresh_layout"
       android:layout_width="match_parent"
       android:layout_height="match_parent">
   <com.lyx.demo.view.LoadMoreRecyclerView
       android:id="@+id/recycler_view"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:scrollbars="none" />
</android.support.v4.widget.SwipeRefreshLayout>
</FrameLayout>

點擊去往csdn下載源碼

點擊去往github下載源碼

如有任何疑問歡迎留言

Android AppBarLayout+TabLayout+RecyclerView+ViewPager+Fragment

點擊去往csdn下載源碼

點擊去往github下載源碼

sm4加密工具類

Android 無限循環的廣告輪播圖

Android 上下滾動的廣告條

Android ImageView移動和縮放

Android 標題背景漸變

Android 仿iOS帶有星期幾的日期時間選擇器

Mac下配置sublime實現LaTeX

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結