Detect change Orientation among Fragments

Question

I had

• Fragment A already addToBackStack().

• Fragment B not addToBackStack().

When Im in Fragment A. I can detect change orientation by using onSaveInstanceState & onViewStateRestored method.

But I can not be successful when I'm in Fragment B. I tried to detect change orientation by using onSaveInstanceState & onViewStateRestored method also but not worked.

It means It always detect change orientation in Fragment A although I'm in Fragment B. (Can not recognized changed orientation in Fragment B)

People who know how I can detect change orientation in Fragment B without detect change orientation of Fragment A in this case?

Please help me,

Thanks,

p/s : The following code detail how to transfer from Fragment A to Fragment B

getFragmentManager().beginTransaction()
            .replace(R.id.fr_content_activity_fitness, mFm)
            .commitAllowingStateLoss();

Answer 1

Now I find out the answer for my question.

Since I used The following code detail how to transfer from Fragment A to Fragment B

getFragmentManager().beginTransaction()
            .replace(R.id.fr_content_activity_fitness, mFm)
            .commitAllowingStateLoss();

While Fragment A already added to BackStack.

So the context now only is Fragment A.

To detect change orientation in Fragment B as above question detail, is changed to the following code, it worked :

getFragmentManager().beginTransaction()
                .add(R.id.fr_content_activity_fitness, mFm)
                .commitAllowingStateLoss();

Used add instead of replace.