相关疑难解决方法(0)

RecyclerView里面怎么用NestedScrollView？ RecyclerView设置适配器后内容不可见.

UPDATE布局代码已更新.

<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/keyline_1">

    </RelativeLayout>

    <View
        android:id="@+id/separator"
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#e5e5e5" />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/conversation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

</android.support.v4.widget.NestedScrollView>

CorodinatorLayout在另一个内部CoordinatorLayout,滚动子视图也应该滚动父CoordinatorLayout.

我有一个coordinatorLayout与ViewPager包含不同Fragment,使得在Scroll将隐藏tabLayout

我有另一个coordinatorLayout有viewPager.这fragment是ViewPager父片段(父母Coordinator layout)的膨胀.

问题是onScrolling子片段childViewpager只反映在coordinator layout孩子fragment而不是父母coordinator layout,我需要做的是隐藏tablayout.

结构是:

CoordinatorLayout(p) ->(tablayout(p) & ViewPager(p) -> CoordinatorLayout(c)  ->(tablayout(c) & ViewPAger(c) ->recyclerView(cc)))

p -> parent;

c -> child; cc -> child to child

如何在滚动回收器视图上进行操作将影响协调器布局,以便工具栏tablayout(p)将被隐藏.

编辑:

• 在我的应用程序中,我在主页上加载了300多个图像.我glide以前加载图像.我到了Out of Memory Error.

我在清单中使用了大堆true :

android:largeHeap="true"

滑翔版:

compile 'com.github.bumptech.glide:glide:3.7.0'

设备/ Android版本:

Nexus Device 6.0版本

我从Json得到的每张图片都是800kb到1mb.

activity_layout:

<RelativeLayout
    android:id="@+id/home_layout_bottom"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/home_layout_top_recycler"
    android:layout_margin="5dp">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/rv_list_tab_home_recycler"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:scrollbars="vertical"
        android:visibility="visible" />

    <TextView
        android:id="@+id/no_user_posts_item_tv_recycler"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/rv_list_tab_home_recycler"
        android:layout_marginTop="80dp"
        android:layout_centerHorizontal="true"
        android:text="@string/txt_no_posts_available"
        android:textColor="@color/txt_common_black"
        android:textSize="@dimen/txt_size" />
</RelativeLayout>

适配器代码:

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder = null;

    final HomePostItems rowItem = getItem(position);

    LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) { …

我在片段中使用以下代码.当我滚动appbarlayout时,工具栏会隐藏,但是当我滚动recyclelerview时它不会隐藏.我在这做错了什么？

我的代码:

<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.AppBarLayout
    android:id="@+id/tabanim_appbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <include
        android:id="@+id/toolbars"
        layout="@layout/custom_toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_scrollFlags="scroll|enterAlways" />

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


<android.support.v7.widget.RecyclerView
    android:id="@+id/lv_nearby"
    android:clipToPadding="false"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />


<android.support.design.widget.FloatingActionButton
    android:id="@+id/floatbutton_nearby"
    android:layout_width="48dp"
    android:layout_height="48dp"
    android:layout_gravity="bottom|right"
    android:layout_marginBottom="8dp"
    android:layout_marginRight="8dp"
    android:scaleType="center"
    android:src="@drawable/filter" />


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

custom_tooolbar布局的代码

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar 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:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways">

<GridView
    android:id="@+id/grid_nearby"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="10dp"
    android:gravity="center"
    android:horizontalSpacing="10dp"
    android:numColumns="4"
    android:verticalSpacing="10dp">

</GridView>

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