Question

我目前正在尝试创建项目列表，例如频道列表。我有一个RecyclerView，并为我的RecyclerView使用LinearLayoutManager。但是我似乎无法使用d-pad控件上下浏览RecyclerView，但是我可以左右导航

RecyclerView channelsRV = findViewById(R.id.rv_items);
LinearLayoutManager layoutManager = new LinearLayoutManager(this,LinearLayoutManager.VERTICAL, false);
channelsRV.setLayoutManager(layoutManager);

这是rv列表

<android.support.v7.widget.RecyclerView
    android:id="@+id/rv_channels"
    android:layout_width="200dp"
    android:layout_height="0dp"
    android:layout_marginStart="4dp"
    android:layout_marginTop="4dp"
    android:layout_marginBottom="4dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintStart_toEndOf="@+id/rv_packages"
    app:layout_constraintTop_toTopOf="parent" />

这是物品

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView 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="@dimen/item_height"
    android:layout_margin="2dp"
    android:focusable="true">

    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/black_transparent">

        <ImageView
            android:id="@+id/iv_channel_image"
            android:layout_width="50dp"
            android:layout_height="46dp"
            android:layout_marginStart="2dp"
            android:layout_marginTop="2dp"
            android:layout_marginBottom="2dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />


        <TextView
            android:id="@+id/tv_channel_number"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="4dp"
            android:layout_marginTop="2dp"
            android:layout_marginBottom="2dp"
            android:textColor="@android:color/white"
            android:textSize="@dimen/small_txt_size"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toEndOf="@+id/iv_channel_image"
            app:layout_constraintTop_toTopOf="parent"
            tools:text="001" />

        <TextView
            android:id="@+id/tv_channel_name"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="4dp"
            android:layout_marginTop="2dp"
            android:layout_marginEnd="4dp"
            android:layout_marginBottom="2dp"
            android:ellipsize="marquee"
            android:enabled="true"
            android:marqueeRepeatLimit="marquee_forever"
            android:scrollHorizontally="true"
            android:singleLine="true"
            android:textColor="@android:color/white"
            android:textSize="@dimen/small_txt_size"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toEndOf="@+id/tv_channel_number"
            app:layout_constraintTop_toTopOf="parent"
            tools:text="BR Discovery Civilization" />

    </android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>

RecyclerView的VERTICAL LinearLayoutManager的d-pad无法正常工作

0 个答案: