当适配器中有超过 50 个项目时,我在 recyclerview 上面临严重的滚动滞后。片段跳帧,UI/UX 受到严重影响。我以延迟加载的方式从网络动态填充列表。
我的 recyclerview 配置如下:
myRecyclerView=getActivity().findViewById(R.id.myRecyclerView);
myListAdapter.setHasStableIds(true);
myListAdapter=new myListAdapter(myRecyclerView,getContext(),R.id.webMRFrame);
myRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
myRecyclerView.setHasFixedSize(false);
myRecyclerView.setItemViewCacheSize(200);
myRecyclerView.setDrawingCacheEnabled(true);
myRecyclerView.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
myRecyclerView.setNestedScrollingEnabled(false);
myRecyclerView.setAdapter(myListAdapter);
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RecyclerView布局:
<LinearLayout 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_height="match_parent"
android:layout_width="match_parent">
<FrameLayout
android:id="@+id/myFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.bittentech.hindinews.Fragments.HomeFragment">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/mySwipeRefresh"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
android:id="@+id/myNestedScrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="true"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- TODO: Update blank fragment layout -->
<android.support.v7.widget.RecyclerView
android:id="@+id/myRecyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ProgressBar
android:id="@+id/myProgress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/myRecyclerView" />
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
</FrameLayout>
</LinearLayout>
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我的浏览者项目:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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="wrap_content">
<android.support.v7.widget.CardView …Run Code Online (Sandbox Code Playgroud)