在專案中根據原型圖實現程式碼

思路：最外層是一個ScrollView  然後下面的細節是RecyclerView的二級巢狀

佈局檔案

最外層

<Scrollview
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/rl_title"
android:layout_marginBottom="52dp"
android:layout_marginTop="5dp"
android:scrollbars="none"
android:fillViewport=
 
"true">
    <LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
        <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android
 
:text="面料選擇"
android:textColor="#000000"
android:textSize="12sp" />
        <LinearLayout
android:id="@+id/ll_mianliao"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="@drawable/squre_hui"
android:orientation="vertical"
android:padding=
 
"5dp">
            <LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
                <ImageView
android:id="@+id/iv_mianliao"
android:layout_width="150dp"
android:layout_height="60dp" />
                <LinearLayout
android:id="@+id/ll_detail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:gravity="center_vertical"
android:orientation="vertical">
                    <LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:orientation="horizontal">
                        <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="編號: "
android:textSize="10sp" />
                        <TextView
android:id="@+id/tv_identifier"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="10sp" />
                    </LinearLayout>
                    <LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:orientation="horizontal">
                        <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="顏色: "
android:textSize="10sp" />
                        <TextView
android:id="@+id/tv_color"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="10sp" />
                    </LinearLayout>
                    <LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:orientation="horizontal">
                        <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="成分: "
android:textSize="10sp" />
                        <TextView
android:id="@+id/tv_component"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="10sp" />
                    </LinearLayout>
                </LinearLayout>
                <TextView
android:id="@+id/tv_null"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="10dp"
android:text="沒有預設面料，請選擇"
android:textSize="12sp"
android:visibility="gone" />
                <ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:padding="10dp"
android:src="@drawable/ic_more" />
            </LinearLayout>        </LinearLayout>
            <View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#ededed" />
        <android.support.v7.widget.RecyclerView
android:id="@+id/rv_style"
android:layout_width="match_parent"
android:layout_height="match_parent">
        </android.support.v7.widget.RecyclerView>
    </LinearLayout>
</Scrollview>

大RecyclerView的item佈局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:orientation="vertical">
    <TextView
android:id="@+id/tv_style_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:textColor="#000000"
android:textSize="12sp"/>
        <android.support.v7.widget.RecyclerView
android:id="@+id/rv_style_item"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp">
        </android.support.v7.widget.RecyclerView>
</LinearLayout>

小recyclerview item的佈局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:gravity="center"
android:orientation="vertical">
    <LinearLayout
android:id="@+id/ll_bg"
android:layout_width="70dp"
android:layout_height="70dp"
android:padding="2dp"
android:descendantFocusability="blocksDescendants"
android:orientation="horizontal">
        <ImageView
android:id="@+id/iv_style"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
    </LinearLayout>
    <TextView
android:id="@+id/tv_name"
android:layout_width="70dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:paddingBottom="10dp"
android:singleLine="true"
android:textSize="10sp" />
</LinearLayout>

最初的時候，發現外層RecyclerView顯示不全，後面百度，大家說需要重新計算item的高度，試了好幾種方法，還是不行，後面翻看一篇國外大神的文章發現了不通，結果也算順利解決

下面給出程式碼：MyLinearLayoutManager  

public class MyLinearLayoutManager extends LinearLayoutManager {
    private static boolean canMakeInsetsDirty = true;
    private static Field insetsDirtyField = null;
    private static final int CHILD_WIDTH = 0;
    private static final int CHILD_HEIGHT = 1;
    private static final int DEFAULT_CHILD_SIZE = 100;
    private final int[] childDimensions = new int[2];
    private final RecyclerView view;
    private int childSize = DEFAULT_CHILD_SIZE;
    private boolean hasChildSize;
    private int overScrollMode = ViewCompat.OVER_SCROLL_ALWAYS;
    private final Rect tmpRect = new Rect();
    public MyLinearLayoutManager(Context context) {
        super(context);
        this.view = null;
}
    public MyLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
        super(context, orientation, reverseLayout);
        this.view = null;
}
    public MyLinearLayoutManager(RecyclerView view) {
        super(view.getContext());
        this.view = view;
        this.overScrollMode = ViewCompat.getOverScrollMode(view);
}
    public MyLinearLayoutManager(RecyclerView view, int orientation, boolean reverseLayout) {
        super(view.getContext(), orientation, reverseLayout);
        this.view = view;
        this.overScrollMode = ViewCompat.getOverScrollMode(view);
}

    public void setOverScrollMode(int overScrollMode) {
        if (overScrollMode < ViewCompat.OVER_SCROLL_ALWAYS || overScrollMode > ViewCompat.OVER_SCROLL_NEVER)
            throw new IllegalArgumentException("Unknown overscroll mode: " + overScrollMode);
        if (this.view == null) throw new IllegalStateException("view == null");
        this.overScrollMode = overScrollMode;
ViewCompat.setOverScrollMode(view, overScrollMode);
}

    public static int makeUnspecifiedSpec() {
        return View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
}

    @Override
public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) {
        final int widthMode = View.MeasureSpec.getMode(widthSpec);
        final int heightMode = View.MeasureSpec.getMode(heightSpec);
        final int widthSize = View.MeasureSpec.getSize(widthSpec);
        final int heightSize = View.MeasureSpec.getSize(heightSpec);
        final boolean hasWidthSize = widthMode != View.MeasureSpec.UNSPECIFIED;
        final boolean hasHeightSize = heightMode != View.MeasureSpec.UNSPECIFIED;
        final boolean exactWidth = widthMode == View.MeasureSpec.EXACTLY;
        final boolean exactHeight = heightMode == View.MeasureSpec.EXACTLY;
        final int unspecified = makeUnspecifiedSpec();
        if (exactWidth && exactHeight) {
            // in case of exact calculations for both dimensions let's use default "onMeasure" implementation
super.onMeasure(recycler, state, widthSpec, heightSpec);
            return;
}

        final boolean vertical = getOrientation() == VERTICAL;
initChildDimensions(widthSize, heightSize, vertical);
        int width = 0;
        int height = 0;
// it's possible to get scrap views in recycler which are bound to old (invalid) adapter entities. This
        // happens because their invalidation happens after "onMeasure" method. As a workaround let's clear the
        // recycler now (it should not cause any performance issues while scrolling as "onMeasure" is never
        // called whiles scrolling)
recycler.clear();
        final int stateItemCount = state.getItemCount();
        final int adapterItemCount = getItemCount();
// adapter always contains actual data while state might contain old data (f.e. data before the animation is
        // done). As we want to measure the view with actual data we must use data from the adapter and not from  the
        // state
for (int i = 0; i < adapterItemCount; i++) {
            if (vertical) {
                if (!hasChildSize) {
                    if (i < stateItemCount) {
                        // we should not exceed state count, otherwise we'll get IndexOutOfBoundsException. For such items
                        // we will use previously calculated dimensions
measureChild(recycler, i, widthSize, unspecified, childDimensions);
}
                }
                height += childDimensions[CHILD_HEIGHT];
                if (i == 0) {
                    width = childDimensions[CHILD_WIDTH];
}
                if (hasHeightSize && height >= heightSize) {
                    break;
}
            } else {
                if (!hasChildSize) {
                    if (i < stateItemCount) {
                        // we should not exceed state count, otherwise we'll get IndexOutOfBoundsException. For such items
                        // we will use previously calculated dimensions
measureChild(recycler, i, unspecified, heightSize, childDimensions);
}
                }
                width += childDimensions[CHILD_WIDTH];
                if (i == 0) {
                    height = childDimensions[CHILD_HEIGHT];
}
                if (hasWidthSize && width >= widthSize) {
                    break;
}
            }
        }

        if (exactWidth) {
            width = widthSize;
} else {
            width += getPaddingLeft() + getPaddingRight();
            if (hasWidthSize) {
                width = Math.min(width, widthSize);
}
        }

        if (exactHeight) {
            height = heightSize;
} else {
            height += getPaddingTop() + getPaddingBottom();
            if (hasHeightSize) {
                height = Math.min(height, heightSize);
}
        }

        setMeasuredDimension(width, height);
        if (view != null && overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS) {
            final boolean fit = (vertical && (!hasHeightSize || height < heightSize))
                    || (!vertical && (!hasWidthSize || width < widthSize));
ViewCompat.setOverScrollMode(view, fit ? ViewCompat.OVER_SCROLL_NEVER : ViewCompat.OVER_SCROLL_ALWAYS);
}
    }
    @Override
public void setOrientation(int orientation) {
        // might be called before the constructor of this class is called
        //noinspection ConstantConditions
if (childDimensions != null) {
            if (getOrientation() != orientation) {
                childDimensions[CHILD_WIDTH] = 0;
childDimensions[CHILD_HEIGHT] = 0;
}
        }
        super.setOrientation(orientation);
}
    private void initChildDimensions(int width, int height, boolean vertical) {
        if (childDimensions[CHILD_WIDTH] != 0 || childDimensions[CHILD_HEIGHT] != 0) {
            // already initialized, skipping
return;
}
        if (vertical) {
            childDimensions[CHILD_WIDTH] = width;
childDimensions[CHILD_HEIGHT] = childSize;
} else {
            childDimensions[CHILD_WIDTH] = childSize;
childDimensions[CHILD_HEIGHT] = height;
}
    }

    public void clearChildSize() {
        hasChildSize = false;
setChildSize(DEFAULT_CHILD_SIZE);
}

    public void setChildSize(int childSize) {
        hasChildSize = true;
        if (this.childSize != childSize) {
            this.childSize = childSize;
requestLayout();
}
    }

    private void measureChild(RecyclerView.Recycler recycler, int position, int widthSize, int heightSize, int[] dimensions) {
        final View child;
        try {
            child = recycler.getViewForPosition(position);
} catch (IndexOutOfBoundsException e) {

            return;
}

        final RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int hPadding = getPaddingLeft() + getPaddingRight();
        final int vPadding = getPaddingTop() + getPaddingBottom();
        final int hMargin = p.leftMargin + p.rightMargin;
        final int vMargin = p.topMargin + p.bottomMargin;
// we must make insets dirty in order calculateItemDecorationsForChild to work
makeInsetsDirty(p);
// this method should be called before any getXxxDecorationXxx() methods
calculateItemDecorationsForChild(child, tmpRect);
        final int hDecoration = getRightDecorationWidth(child) + getLeftDecorationWidth(child);
        final int vDecoration = getTopDecorationHeight(child) + getBottomDecorationHeight(child);
        final int childWidthSpec = getChildMeasureSpec(widthSize, hPadding + hMargin + hDecoration, p.width, canScrollHorizontally());
        final int childHeightSpec = getChildMeasureSpec(heightSize, vPadding + vMargin + vDecoration, p.height, canScrollVertically());
child.measure(childWidthSpec, childHeightSpec);
dimensions[CHILD_WIDTH] = getDecoratedMeasuredWidth(child) + p.leftMargin + p.rightMargin;
dimensions[CHILD_HEIGHT] = getDecoratedMeasuredHeight(child) + p.bottomMargin + p.topMargin;
// as view is recycled let's not keep old measured values
makeInsetsDirty(p);
recycler.recycleView(child);
}

    private static void makeInsetsDirty(RecyclerView.LayoutParams p) {
        if (!canMakeInsetsDirty) {
            return;
}
        try {
            if (insetsDirtyField == null) {
                insetsDirtyField = RecyclerView.LayoutParams.class.getDeclaredField("mInsetsDirty");
insetsDirtyField.setAccessible(true);
}
            insetsDirtyField.set(p, true);
} catch (NoSuchFieldException e) {
            onMakeInsertDirtyFailed();
} catch (IllegalAccessException e) {
            onMakeInsertDirtyFailed();
}
    }
    private static void onMakeInsertDirtyFailed() {
        canMakeInsetsDirty = false;
}
}

Activity 中程式碼就跟是常規使用recyclerview的方法

下面貼出第一個adapter中的程式碼 StyleAdapte

這裡在onBindView中繫結資料，並設定第二個recyclerview的adapter

注意f粉色部分 後面出現了小recyclerview也顯示不全 明明設定好了layoutManager還是顯示不全，試了好幾種都不行，後面將其改成紅色部分就好了
原因我還不是太清楚  我想應該是資料來源的地址相同引起的資料錯亂 。
放在外面  即使在下方clear了 但是資料地址還是一樣，所以引起了資料錯亂  
放在下面的話，就相當於 每一次繫結資料都是一個 新的資料

public class StyleAdapter extends RecyclerView.Adapter<StyleAdapter.MyViewHolder> {

    private List<AttributeClass> mAttributeClassDatas;

 //List<Attribute> mAttributeDatas = new ArrayList<Attribute>();

private LayoutInflater mInflater; private DetailTaoxiActivity mContext; public StyleAdapter(DetailTaoxiActivity context, List<AttributeClass> datas) { mInflater = LayoutInflater.from(context);mAttributeClassDatas = datas;mContext = context;} @Overridepublic MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { MyViewHolder holder = new MyViewHolder(mInflater.inflate(R.layout.item_style, parent, false)); return holder;} @Overridepublic void onBindViewHolder(MyViewHolder holder, int position) { holder.tv_style_name.setText(mAttributeClassDatas.get(position).name);JSONArray attributeList = mAttributeClassDatas.get(position).attributeList;

//mAttributeDatas.clear();

List<Attribute> mAttributeDatas = new ArrayList<Attribute>(); for (int i = 0; i < attributeList.length(); i++) { Attribute attribute = Attribute.createFromJson(attributeList.optJSONObject(i));mAttributeDatas.add(attribute);} if (mAttributeDatas != null && mAttributeDatas.size() > 0) { ImageAdapter imageAdapter = new ImageAdapter(mContext, mAttributeDatas);FullyGridLayoutManager gm = new FullyGridLayoutManager(mContext, 4, FullyGridLayoutManager.VERTICAL, false);holder.rv_style_item.setLayoutManager(gm);holder.rv_style_item.setAdapter(imageAdapter);holder.rv_style_item.setVisibility(View.VISIBLE);} else { holder.rv_style_item.setVisibility(View.GONE);} } @Overridepublic int getItemCount() { return mAttributeClassDatas.size();} class MyViewHolder extends ViewHolder { TextView tv_style_name;RecyclerView rv_style_item; public MyViewHolder(View view) { super(view);tv_style_name = (TextView) view.findViewById(R.id.tv_style_name);rv_style_item = (RecyclerView) view.findViewById(R.id.rv_style_item);} }}

小Adapter也是很簡單的  就跟平常用的recyclerview的adapter一樣

public class ImageAdapter extends RecyclerView.Adapter<ImageAdapter.MyViewHolder>{

    private List<Attribute> mDatas;
    private LayoutInflater mInflater;
    private DetailTaoxiActivity mContext;
    private ImageLoader imageLoader;
    private int layoutPosition;
    private List<String> idList=new ArrayList<String>();
    public ImageAdapter(DetailTaoxiActivity context, List<Attribute> datas) {
        mInflater = LayoutInflater.from(context);
mDatas = datas;
mContext=context;
}
    @Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = mInflater.inflate(R.layout.item_style_item, parent, false);
        return new MyViewHolder(view);
}

    @Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
        holder.tv_name.setText(mDatas.get(position).name);
imageLoader = new ImageLoader(mContext);
imageLoader.DisplayImage(URL_P.ImageBasePath +mDatas.get(position).pic, holder.iv_style);
mContext.setBackground(holder.ll_bg,position);
holder.ll_bg.setOnClickListener(new View.OnClickListener() {
            @Override
public void onClick(View view) {

    /*

實現item的單選

*/

//上一個選中的位置
int selPos=mContext.getmSelectedPos();
String oldId=mDatas.get(selPos).attributeValueId;
//獲取當前點選的位置
layoutPosition = holder.getLayoutPosition();
                notifyDataSetChanged();
                String newId=mDatas.get(layoutPosition).attributeValueId;mContext.updataBackground(oldId,newId);
}
        });
//更改狀態
if(position == layoutPosition){
            holder.ll_bg.setBackgroundResource(R.drawable.squre_gray_black);
        }else{
            holder.ll_bg.setBackgroundResource(R.drawable.squre_hui);
        }
    }

    @Override
public int getItemCount() {
        
            
  
           

              
              
            
            
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在專案中根據原型圖實現程式碼


思路：最外層是一個ScrollView  然後下面的細節是RecyclerView的二級巢狀
佈局檔案
最外層

<Scrollview
android:layout_width="match_parent"
android:layo 

  
 

    

    
    
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							有需求的可以看看前言準備工作具體實現感謝
前言
還是先上圖看下效果，不符要求或者不感興趣的老哥就可以省個時間去做其他事了。
效果圖：

準備工作

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GIF.gif


技能點:
1.Android事件分發機制等



需求點:
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專案中要求兩個紅框區域列表滑動時吸頂，頭像部分超過四行可上下滑動。



問題①兩個區域吸頂實現：這個比較好實 

  
 

    

    
    
RecyclerView巢狀ViewPager實現淘寶搜狐主頁廣告輪播圖
     
 
							
							
							


  RecyclerView巢狀ViewPager實現原理：
  
  
    RecyclerView巢狀ViewPager實際上就是RecyclerView複雜佈局的實現，給其中一個item設定為ViewPager來實現廣告輪播圖。既然知道原理 那麼 

  
 

    

    
    
簡單解決RecyclerView巢狀的RecyclerView條目顯示不全和寬度不能鋪滿
     
 
								
								            
						
                
第一個RecyclerView的Adapter
@Override
    public MyHolder onCreateViewHolder(ViewGroup parent, int viewT 

  
 

    

    
    
RecyclerView巢狀ListView 只顯示一條資料
     
 
                
 今天做專案發現  RecyclerView巢狀ListView 只顯示一個item， 咋辦！
此時我們需要把ListView重寫一下onMeasure方法。因為當ListView的Item每次改變時都會呼叫onMeasure.
自定義ListView就可以 了

publ 

  
 

    

    
    
RecyclerView巢狀RecyclerView
     
 
							
							
							看看本篇文章要實現的是什麼效果： 


實現思路：

1.在外層的item佈局中放一個RecyclerView用來顯示網格佈局：



2.增加一個ImageAdapter，用來展示圖片；

3.在原InfoAdapter中對圖片資料進行處理：



  if( 

  
 

    

    
    
Android  混排效果之 ScrollView 巢狀 RecyclerView 巢狀gridview 實現listview 巢狀gridview 效果
     
 
							
							
							RecyclerView 出現以後 很受大家歡迎 漂亮流暢的列表 簡單的操作 可以幫我們完成很多的列表 但是有一種listview 巢狀gridview 的效果 目前還是需要巢狀才能完成 現在就簡單說一下我的思路 本人的需求是例如手機淘寶頁 本人使用老套的實現模 

  
 

    

    
    
RecyclerView常見問題解決方案，RecyclerView巢狀自動滾動，RecyclerView 高度設定wrap_content 無作用等問題
     
 
								
								            
						
                
1，ScrollView或者RecyclerView1 巢狀RecyclerView2  進入頁面自動跳轉到recyclerView2上面頁面會自動滾動貌似是RecyclerView 自動獲得了焦點兩 

  
 

    

    
    
Android中RecyclerView巢狀RecyclerView或巢狀ListView
     
 
                
效果圖：
RecyclerView巢狀RecyclerView

RecyclerView巢狀ListView



原理


RecyclerView巢狀RecyclerView的條目，專案中可能會經常有這樣的需求，但是我們將子條目設定為RecyclerView之後，卻顯 

  
 

    

    
    
RecyclerView巢狀ViewPager再巢狀RecyclerView滑動問題
     
 
                RecyclerView頭部巢狀ViewPager,ViewPager內放Fragment,Fragment再放RecyclerView時,其實就是RecyclerView巢狀Viewpager再巢狀RecyclerView,這個時候滑動外面的RecyclerView的時候,