Question

我有一个活动，那里有一些组件和一个recyclerview。我希望UI能够使我向上滑动，使整个屏幕向下滚动；不只是recyclerview。我如何做到这一点？我已经尝试过通过滚动视图将除协调器布局之外的所有布局封装起来，但是它似乎无法正常工作。

Java代码：

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_single_art_call);

        Fund = (Button) findViewById(R.id.button2);
        /* -------- Obtain the Event ID of the item that the user has selected on the RecyclerView ------*/
        Intent intent = getIntent();
        Artcall_id  = intent.getStringExtra("Artcall_id");
        /* ----------------------------------------------------------------------------------------------*/

        mEventFundRef = FirebaseDatabase.getInstance().getReference().child("Fund");
        mRewardsRef = FirebaseDatabase.getInstance().getReference().child("Rewards").child(Artcall_id);
        rewards_list = (RecyclerView) findViewById(R.id.reward_list);


        rewards_list.setHasFixedSize(true);
        LinearLayoutManager layoutManager =  new LinearLayoutManager(this);
        rewards_list.setLayoutManager(layoutManager);
}

XML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"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".FundingFlow.SingleArtCall">

   <ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <RelativeLayout
            android:id="@+id/relLayout1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <include
                android:id="@+id/genpage_toolbar"
                layout="@layout/app_bar_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
        </RelativeLayout>

        <TextView
            android:id="@+id/band_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_alignParentTop="true"
            android:layout_marginStart="24dp"
            android:layout_marginTop="186dp"
            android:text="Sean Roldan and Friends"
            android:textAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title"
            android:textSize="24sp" />


        <!--Bottom Button -->
        <include layout="@layout/fund_button_layout" />

        <TextView
            android:id="@+id/band_location"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignStart="@+id/band_name"
            android:layout_below="@+id/band_name"
            android:text="Performing in Hyderabad, India." />

        <TextView
            android:id="@+id/started_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_alignStart="@+id/band_name"
            android:layout_marginTop="245dp"
            android:text="Started by Vishwesh Kirthi"
            android:textSize="14sp" />

        <TextView
            android:id="@+id/genre_txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="259dp"
            android:text="Indian Folk and Blues"
            android:textAppearance="@style/TextAppearance.AppCompat.Button" />

        <ImageView
            android:id="@+id/videoView"
            android:layout_width="match_parent"
            android:layout_height="126dp"
            android:layout_alignParentStart="true"
            android:layout_below="@+id/relLayout1"
            android:src="@color/white" />

        <ProgressBar
            android:id="@+id/progressBar2"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="338dp"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="233dp"
            android:max="100"
            android:progress="60" />

        <TextView
            android:id="@+id/amt_fund_txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignStart="@+id/band_name"
            android:layout_marginBottom="191dp"
            android:text="Rs. 7,80,000"
            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/target_fund_txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignStart="@+id/band_name"
            android:layout_marginBottom="162dp"
            android:text="pledged of Rs. 13,00,000" />

        <TextView
            android:id="@+id/total_backers_txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignStart="@+id/textView35"
            android:layout_alignTop="@+id/amt_fund_txt"
            android:text="120"
            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView35"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_alignTop="@+id/target_fund_txt"
            android:layout_marginEnd="124dp"
            android:text="backers" />

        <TextView
            android:id="@+id/time_left_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignTop="@+id/amt_fund_txt"
            android:layout_toEndOf="@+id/band_name"
            android:text="25"
            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/time_qt_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignTop="@+id/target_fund_txt"
            android:layout_toEndOf="@+id/band_name"
            android:text="days to go" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/time_qt_left"
            android:id="@+id/relLayout2">


            <android.support.v7.widget.RecyclerView
                android:id="@+id/reward_list"
                android:layout_width="354dp"
                android:layout_height="match_parent"
                android:layout_centerInParent="true"
                android:paddingTop="10dp"
                ></android.support.v7.widget.RecyclerView>

        </RelativeLayout>



    </RelativeLayout>


</ScrollView>

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

Answer 1

您应该避免将recyclerview放在scrollview中。完成后，recyclerview将绘制所有元素，而不是屏幕上可见的所有元素。我遇到了一个非常类似的问题，并且可以通过使用FastAdapter中的ModelAdapter来解决此问题。这个想法是，您创建1个适配器类型，其中包含您的文本视图的内容，另一种类型用于保存您的reward_list项目。

var modelAdapter: ModelAdapter<RewardModel, GenericRewardItem>

modelAdapter = ModelAdapter({
    when (it) {
        is RewardModel.BodyContent -> BodyContentItem(it)
        is RewardModel.Reward -> RewardItem(it)
    }
})

val fastAdapter: FastAdapter<GenericJobDetailItem> = 
FastAdapter.with(listOf(modelAdapter))
recycler_view.apply {
    layoutManager = LinearLayoutManager(view.context)
    hasFixedSize()
    adapter = fastAdapter
}

val items = mutableListOf<RewardModel>()
items.add(RewardModel.BodyContent(/* All your body content */))
rewards.forEach {
    items.add(RewardModel.Reward(/* reward item */))
}

modelAdapter.setNewList(items)

FastAdapter是一个非常不错的库，我现在将其用于所有适配器视图。

Answer 2

更改您的RecyclerViews

layout_height:wrap_content

然后在您的代码中

yourRecyclerview.setNestedScrollingEnabled(false);

如何将Recyclerview添加到Scrollview？

2 个答案: