如何在framgent视图分页器内部添加片段

Question

I am using a view pager .It contains three fragments. I need to add fragment on one of the view pager fragments when button clicked but I am having a problem in doing that.

this is the java code that should opens the new fragment but there is something wrong in it

        Toast.makeText(context, "clicked", Toast.LENGTH_SHORT).show();
        Bundle lessonData = new Bundle();
        LessonContent lessonContent = new LessonContent();
        lessonData.putString("lessonTitle", mylist.getTitle());
        lessonData.putString("lessonContent", mylist.getContent());
        lessonContent.setArguments(lessonData);
        ((Activity) context).getFragmentManager().beginTransaction()
                .add(lessonContent, null)//I think this line is wrong
                .addToBackStack(null)
                .commit();

Answer 1

.add(lessonContent, null)//I think this line is wrong

Should probably replace by:

.replace(R.id.yourfragmentcontainerid, lessonContent) // or android.R.id.content

And then it should work. The point is, it's not getting the layout to show so, it does not show anything.