Why I can't add a instance of Fragment?

[ppamorim]

This can be a problem:

add(int title, java.lang.Class<? extends android.support.v4.app.Fragment> clazz)

I need to have a:

add(int title, Fragment fragment)

Why, If I need create a instance of the Fragment, I need use this.

[ogaclejapan]

Hi, @ppamorim

Should use the v13 of utility.

//Optional: see how to use the utility.
compile 'com.ogaclejapan.smarttablayout:utils-v13:1.1.1@aar'

[ogaclejapan]

Sorry mistake.
Do not support because unnecessary instance.

[ppamorim]

@ogaclejapan Based on what you said that?

[ogaclejapan]

Hi, @ppamorim
Fragment instance repeat creation and destruction on the ViewPager.
So, I think it is better to use the Fragment.instantiate(...) rather than give an instance.

[ppamorim]

You're wrong.
Only the view will be recreate, not a instance of the fragment.
I use the instance of the Fragment a long time on my applications.

[ogaclejapan]

Please try checked Don’t keep activities in the developer mode.
When you view again after returning to the home, it will change to a different instance.
Often occurs is similar events in low memory device.

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        Object item = super.instantiateItem(container, position);
        Log.d("DEBUG", "position: " + position + " " + item.toString());
        if (item instanceof Fragment) {
            mHolder.put(position, new WeakReference<Fragment>((Fragment) item));
        }
        return item;
    }

[ppamorim]

Well...
https://gist.github.com/ppamorim/295d6ef841d3a288ef78

[ogaclejapan]

Hi, @ppamorim
Thank you upload the code.

What are the reasons why you think you have the better of this code than the current implementation?
I think enough in the current implementation to be instantiated when needed.

The library utility that provides adapters is optional,
if you want to use the adapter that you have pre-instantiation, please use to implement yourself.

Although I'm sorry,
Function to add a pre-instantiated fragment does not have plans to add to the utility.

[ppamorim]

How to do this?

[ppamorim]

Solved!