android-layout - 导入什么来解决 "LayoutParams cannot be resolved to a variable"？

Question

我收到错误 LayoutParams cannot be resolved to a variable一行代码如下 tv.setLayoutParams(new GridView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.1f));当我按 ctrl+shift+o 导入必要的 pacakges 时，我得到了很多版本的包作为选项。我很困惑哪一个应该做这项工作。
here是我得到的选择吗

导入后import android.app.ActionBar.LayoutParams;仍然出错

The constructor AbsListView.LayoutParams(int, int, float) is undefined

Answer 1

可以通过导入[any layout].LayoutParams来解决
例如。import android.widget.GridLayout.LayoutParams;虽然我不清楚选择导入哪个包的标准应该是什么。
解决问题

the constructor AbsListView.LayoutParams(int, int, float) is undefined

确保第三个参数也是“int”
它应该是 :

LayoutParams cannot be resolved to a variable on a line of code which is as follows tv.setLayoutParams(new GridView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));