Android 如何为动态创建的UI设置页边距

我需要将边距设置为动态创建的UI。我想给LinearLayout添加边距

下面是我的代码

        @Nullable
        @Override
        public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
            viewPager = (ViewPager) container;      
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
            this.layoutInflater = inflater;
            scrollView = new ScrollView(getActivity());
            linearLayout = new LinearLayout(getActivity());
            linearLayout.setOrientation(LinearLayout.VERTICAL);
            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
            layoutParams.setMargins(15, 15, 15, 15);
            scrollView.setLayoutParams(layoutParams);   //add this
            scrollView.addView(linearLayout, layoutParams);

    //adding few UI controllers dynamically by method call to here


            return scrollView;
        }

---

我试了很多方法，但都不管用。目前，它没有按照给定的维度添加空格/边距。

您需要调用

scrollView.setLayoutParams（layoutParams）

if(layoutParams instanceof MarginLayoutParams)
{
    ((MarginLayoutParams) layoutParams).topMargin = 15;
    ((MarginLayoutParams) layoutParams).leftMargin = 15;
    //... etc
}

还将
Layoutparams
设置为
Scrollview
和内部
LinearLayout

在代码中：

 scrollView = new ScrollView(getActivity());
scrollView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));
scrollView.setFillViewport(true);

linearLayout = new LinearLayout(getActivity());
linearLayout.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
linearLayout.setOrientation(LinearLayout.VERTICAL);

LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) scrollView
        .getLayoutParams();
layoutParams.setMargins(15, 15, 15, 15);
scrollView.setLayoutParams(layoutParams);   //add this
scrollView.addView(linearLayout, layoutParams);

如果要将边距添加到
LinearLayout
，则需要创建父级相同类型的
LayoutParams
，以便：

scrollView = new ScrollView(getContext());
linearLayout = new LinearLayout(getContext());
linearLayout.setOrientation(LinearLayout.VERTICAL);
ScrollView.LayoutParams layoutParams = new ScrollView.LayoutParams(
        LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
// I recommend you to set resolved size as margins, not pixels like you are doing here.        
layoutParams.setMargins(15, 15, 15, 15);
scrollView.addView(linearLayout, layoutParams);

编辑

记住将
ScrollView
添加到布局中，将
LayoutParams
添加到布局中。
例如，在
片段中（您使用的是
getActivity（）
，因此我假设您在
片段中）
：

据此：

这将强制子视图拉伸到父scrollview。然后，您可以设置填充scrollview后将增加空间的边距。
也许他想在scrollview和linearlayout之间留一个边距？；）对我不起作用。布局保持不变&不增加任何方面的利润我认为拉夫萨纳姆的答案是。。满足您的需要，因为我的解决方案只是为不能直接设置的元素设置边距。不管怎么说，我想你希望你的整个视图（滚动视图包裹线性布局）有边距。这对我来说不太合适。布局保持不变&没有从任何一侧添加边距您是否已将ScrollView添加到根视图？我的ScrollView是根视图view@VVB您是否已将其添加为rootView，并在片段#onCreateView（）或活动#onCreate（）中返回它？可能是错误的，但我在onCreateView（）中返回linearLayout
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    ScrollView scrollView = new ScrollView(getActivity());
    LinearLayout linearLayout = new LinearLayout(getActivity());
    linearLayout.setOrientation(LinearLayout.VERTICAL);
    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
    layoutParams.setMargins(15, 15, 15, 15);
    scrollView.addView(linearLayout, layoutParams);
    scrollView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
    return scrollView;
}

scrollView.setFillViewport(true);