java - 如何在java代码中使用wrap_cotent创建LinearLayout？

Question

什么是 Java 编程等效于创建以下 XML 文件:

<LinearLayout
   android:layout_width="wrap_content"
   android:layout_height="wrap_content">
     <RelativeLayout />
</LinearLayout>

我尝试这样做，但LinearLayout如何抓取MATCH_PARENT

// child is the RelativeLayout in the above example:
LinearLayout parent = new LinearLayout(getContext());
LinearLayout.LayoutParams childLayoutParams = new LinearLayout.LayoutParams(
  LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
parent.addView(child, -1, childLayoutParams);

Answer 1

试试这个

LinearLayout parent = new LinearLayout(getContext());
LayoutParams parentLayoutParams = new LinearLayout.LayoutParams(
        LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
parent.setLayoutParams(parentLayoutParams);

然后将其添加到屏幕

outerlayout.addView(parent);