是否有可能以编程为RecyclerView孩子在Android中设置重力？ [英] Is it possible to set gravity programmatically for RecyclerView children in Android?

问题描述

我想设置在RecyclerView儿童重力，但它看起来像的LayoutParams没有重力的方法。我曾尝试以下内容：

I'm trying to set gravity for children in RecyclerView, but it looks like the LayoutParams does not have a gravity method. I have tried the following:

RecyclerView.LayoutParams params = new RecyclerView.LayoutParams(
                RecyclerView.LayoutParams.WRAP_CONTENT, RecyclerView.LayoutParams.WRAP_CONTENT);

我也试过如下：

RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);

在这两种情况下 params.setMargin（INT，INT，INT，INT）工作得很好，并且页边距设置正确。

In both cases params.setMargin(int, int, int, int) works just fine and the margin is set correctly.

我RecyclerView：

My RecyclerView:

<android.support.v7.widget.RecyclerView
    android:id="@+id/messages_list_view"
    android:scrollbars="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/toolbar"
    android:layout_marginTop="20dp"/>

我的RelativeLayout（RecyclerView儿童）：

My RelativeLayout (child of RecyclerView):

<RelativeLayout
android:id="@+id/message_text_wrapper"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:background="@drawable/chat_bubble"
android:layout_margin="16dp"
android:padding="10dp"
xmlns:android="http://schemas.android.com/apk/res/android">

    <TextView
        android:id="@+id/message_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:textColor="@android:color/primary_text_light"
        android:textSize="18sp"
        />

</RelativeLayout>

我希望能够做的就是 params.setGravity（INT）或任何其他黑客，使这一切成为可能。谢谢你。

What I want to be able to do is params.setGravity(int) or any other hack that makes this possible. Thanks.

推荐答案

我想换行 RelativeLayout的在的FrameLayout 与的android：宽=match_parent，然后设置左/右的重力的的FrameLayout

I would wrap the RelativeLayout in a FrameLayout with android:width="match_parent" and then set the gravity left/right on the FrameLayout.

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