Question

我认为问题是，Recycler没有高度。所以我的百分比布局不能用100％填充'0'的高度如何获得RecyclerView的每个孩子的身高？

Recycler的内容（percentLayout）：

    <android.support.percent.PercentRelativeLayout
        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="100dp"
        android:background="#000000">

    <TextView
        app:layout_widthPercent="5%"
        app:layout_heightPercent="100%"
        app:layout_marginTopPercent="5%"
        app:layout_marginLeftPercent="2%"
        app:layout_marginRightPercent="75%"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/txt_roomname_map"

        android:background="#3c64f6"
        android:textColor="#ffffff"

        />
    <TextView
        app:layout_widthPercent="35%"
        app:layout_heightPercent="100%"
        app:layout_marginTopPercent="5%"
        app:layout_marginLeftPercent="13%"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/txt_weapons_in_room_map"
        android:background="#3c64f6"
        android:textColor="#ffffff"

    />

    <TextView
        app:layout_widthPercent="35%"
        app:layout_heightPercent="100%"
        app:layout_marginTopPercent="5%"
        app:layout_marginLeftPercent="52%"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/txt_weapons_in_room_map2"
        android:background="#3c64f6"
        android:textColor="#ffffff"/>

    <TextView
        app:layout_widthPercent="5%"
        app:layout_heightPercent="100%"
        app:layout_marginTopPercent="5%"
        app:layout_marginLeftPercent="93%"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/txt_roomname_map2"
        android:background="#3c64f6"
        android:textColor="#ffffff" />
</android.support.percent.PercentRelativeLayout>

RecyclerLayout：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    android:background="#000000">



    <android.support.v7.widget.RecyclerView
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:id="@+id/recyclerview"
        android:layout_below="@+id/imageView3"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="50dp"
        android:id="@+id/imageView3"

        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

</RelativeLayout>

非常感谢！

Answer 1

您无法将PercentRelativeLayout的高度设置为屏幕的百分比，因为您无法从布局项访问RecyclerView的高度。

但您可以将宽度设置为100％并使用layout_aspectRatio。

Android PercentRelativeLayout不会出现在RecyclerView中

1 个答案: