从电视倾斜中的 RowsSupportFragment 开始填充答案

【问题标题】：start padding from RowsSupportFragment in tv leanback从电视倾斜中的 RowsSupportFragment 开始填充
【发布时间】：2020-11-19 20:02:28
【问题描述】：

有没有办法从 RowsSupportFragment 中删除开始填充，如箭头所示

以下样式不会删除开始填充。

<style name="SearchTheme" parent="@style/Theme.Leanback.Browse">
    <item name="rowHeaderDockStyle">@style/RowHeaderDock</item>
    <item name="rowHorizontalGridStyle">@style/HorizentalGridStyle</item>
</style>
<style name="RowHeaderDock">
    <item name="android:paddingStart">0dp</item>
</style>
<style name="HorizentalGridStyle" parent="Widget.Leanback.Row.HorizontalGridView">
    <item name="android:paddingStart">0dp</item>
</style>

【问题讨论】：

您是如何制作侧边导航菜单的？它是在 Activity 内部还是在 Fragment 内部实现的？

标签： leanback

【解决方案1】：

将此声明添加到您的dimens.xml：

<dimen name="lb_browse_padding_start">0dp</dimen>

【讨论】：

【解决方案2】：

使用客户列表行展示器

class CustomListRowPresenter : ListRowPresenter(FocusHighlight.ZOOM_FACTOR_NONE, true) {

override fun initializeRowViewHolder(holder: RowPresenter.ViewHolder) {
    super.initializeRowViewHolder(holder)
    val vh = (holder as ViewHolder)
    val mContainerViewHolder =
        (RowPresenter.ViewHolder::class.java).getDeclaredField("mContainerViewHolder")
    mContainerViewHolder.isAccessible = true
    val viewHolder = mContainerViewHolder.get(vh) as Presenter.ViewHolder
    val nonOverlappingLinearLayout =
        (viewHolder.view as ViewGroup).children.find { it is NonOverlappingLinearLayout }
    if (nonOverlappingLinearLayout != null) {
        val left = 0
        val right = nonOverlappingLinearLayout.right
        val top = nonOverlappingLinearLayout.top
        val bottom = nonOverlappingLinearLayout.bottom
        nonOverlappingLinearLayout.setPadding(left, top, right, bottom)
    }
    val headerHolder = vh.headerViewHolder
    headerHolder.selectLevel
    val field = vh::class.java.getDeclaredField("mPaddingLeft")
    field.isAccessible = true
    field.set(vh, 0)
}

}

【讨论】：