Android 如何在自定义对话框中放置多个linearlayout？

我创建了一个自定义对话框，其中包含在运行时填充的单选按钮。如果单选按钮的数量超过12，则底部线性布局（带按钮）不显示。我怎样才能解决这个问题？我的代码

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包装滚动视图的线性布局在高度上设置为“包装内容”，列表越大，按钮就会被推出屏幕

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我建议使用，它允许您相对彼此定位您的视图。例如，“按钮始终在父级底部对齐，滚动视图始终在按钮上方和父级顶部下方”

只需将父级线性布局替换为框架布局，并将底部容器（线性布局）重力设置为底部

<FrameLayout xmlns:android = "http://schemas.android.com/apk/res/android"
     android:layout_width = "match_parent"
     android:layout_height = "match_parent"
     android:padding = "16dp">

<LinearLayout
    android:layout_width = "match_parent"
    android:layout_height = "wrap_content"
    android:layout_marginBottom = "100dp">

    <ScrollView
        android:layout_width = "match_parent"
        android:layout_height = "match_parent">

        <RadioGroup
            android:id = "@+id/input_radio_button_radiogroup"
            android:layout_width = "wrap_content"
            android:layout_height = "wrap_content"></RadioGroup>
    </ScrollView>
</LinearLayout>

<LinearLayout
    android:layout_width = "match_parent"
    android:layout_height = "wrap_content"
    android:layout_gravity="bottom"
    android:orientation = "horizontal">

    <Button
        android:id = "@+id/input_radio_button_custom_cancel_button"
        android:layout_width = "match_parent"
        android:layout_height = "wrap_content"
        android:layout_marginRight = "4dp"
        android:layout_weight = "1"
        android:text = "Cancel" />

    <Button
        android:id = "@+id/input_radio_button_custom_ok_button"
        android:layout_width = "match_parent"
        android:layout_height = "wrap_content"
        android:layout_marginLeft = "4dp"
        android:layout_weight = "1"
        android:text = "Ok" />
</LinearLayout>

ConstraintLayout将解决其中一些问题，但实际上这应该是一个recyclerView。不要使用它，而是使用RecyclerViewsCollView将是一个更好的选择，而不是recyclerView。

<FrameLayout xmlns:android = "http://schemas.android.com/apk/res/android"
     android:layout_width = "match_parent"
     android:layout_height = "match_parent"
     android:padding = "16dp">

<LinearLayout
    android:layout_width = "match_parent"
    android:layout_height = "wrap_content"
    android:layout_marginBottom = "100dp">

    <ScrollView
        android:layout_width = "match_parent"
        android:layout_height = "match_parent">

        <RadioGroup
            android:id = "@+id/input_radio_button_radiogroup"
            android:layout_width = "wrap_content"
            android:layout_height = "wrap_content"></RadioGroup>
    </ScrollView>
</LinearLayout>

<LinearLayout
    android:layout_width = "match_parent"
    android:layout_height = "wrap_content"
    android:layout_gravity="bottom"
    android:orientation = "horizontal">

    <Button
        android:id = "@+id/input_radio_button_custom_cancel_button"
        android:layout_width = "match_parent"
        android:layout_height = "wrap_content"
        android:layout_marginRight = "4dp"
        android:layout_weight = "1"
        android:text = "Cancel" />

    <Button
        android:id = "@+id/input_radio_button_custom_ok_button"
        android:layout_width = "match_parent"
        android:layout_height = "wrap_content"
        android:layout_marginLeft = "4dp"
        android:layout_weight = "1"
        android:text = "Ok" />
</LinearLayout>