RecyclerView子对象match_parent [英] RecyclerView children match_parent

问题描述

我的问题与这个问题非常相似，但是，与OP不同，我将parent传递给LayoutInflater.我正在使用支持库25.3.1.这是我要夸大的布局(将ConstraintLayout更改为LinearLayout并没有帮助):

My problem is very similar to this question, however unlike it's OP I'm passing the parent to the LayoutInflater. I'm using support library 25.3.1. Here's the layout that I'm inflating (Changing the ConstraintLayout to LinearLayout doesn't help):

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    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="72dp"
    android:background="?android:selectableItemBackground"
    android:clickable="true"
    tools:layout_editor_absoluteX="0dp"
    tools:layout_editor_absoluteY="81dp">


    <TextView
        android:id="@+id/list_text_primary"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:layout_marginStart="16dp"
        android:singleLine="true"
        android:textAppearance="@style/TextAppearance.ListPrimary"
        app:layout_constraintBottom_toTopOf="@+id/list_text_secondary"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_chainStyle="packed"
        tools:ignore="Deprecated"
        tools:text="list_text_primary"/>

    <TextView
        android:id="@+id/list_text_secondary"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginEnd="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:layout_marginStart="16dp"
        android:gravity="center_vertical"
        android:singleLine="true"
        android:textAppearance="@style/TextAppearance.ListSecondary"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/list_text_primary"
        tools:ignore="Deprecated"
        tools:text="list_text_secondary"/>


</android.support.constraint.ConstraintLayout>

我还尝试按照根据此答案，RecyclerView应该已经由我测量了onCreateViewHolder被调用.

I've also tried to set the LayoutParams manually in onCreateViewHolder as described According to this answer the RecyclerView should already me measured by the time onCreateViewHolder is called.

推荐答案

如果粘贴适配器代码，效果会更好，但是可以尝试一下.

If you paste your adapter code, that would have been better, but you can try this.

WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
            Point size = new Point();
            windowManager.getDefaultDisplay().getSize(size);
            holder.yourItemBinding.getRoot().setLayoutParams(new RecyclerView.LayoutParams(size.x,
                    RecyclerView.LayoutParams.WRAP_CONTENT));

替换

holder.yourItemBinding.getRoot()

holder.yourItemBinding.getRoot()

如果不使用布局绑定，请使用

与根视图对象一起使用.

with your root view object if you are not using layout binding.

这篇关于RecyclerView子对象match_parent的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！