Add MvpPreferenceActivity and MvpPreferenceFragment

[ProtopopovIgorAlidi]

A lot of applications have preference screen. Google recommends to use PreferenceActivity and PreferenceFragment. Need support of Preference mechanics in Moxy.

[senneco]

You able to create your own MvpPreferenceActivity =) Just make it same as MvpActivity, but extends from PreferenceActivity instead of just Activity.

Currently I don't see more same requests and I don't plane to do this.

[ProtopopovIgorAlidi]

Thank You, I create my own MvpPreferenceActivity.
But I couldn't make it complete MVP.
For example I have some ListPreference and set OnPreferenceChangeListener into it. It works well but without presenter. And if I open this preference and rotate screen before choose someting, dialog hides. Could be added someting to moxy library to support this? Or I can resolve task itself?

[senneco]

I never used PreferenceActivity and ListReference before =) Could you explain your question?)

[ProtopopovIgorAlidi]

Yes.
To show preference screen I use
https://developer.android.com/reference/android/preference/PreferenceFragment

There is no setContentView(R.layout...), but have addPreferencesFromResource(R.xml...)

There defined preferences showed on the screen
<PreferenceScreen ...
<PreferenceCategory...
<Preference...
<ListPreference....

On click on ListPreference Android automatically show dialog with list of values. So I couldn't call some presenter function on this action. When screen rotates, activity recreates and dialog hides. I need some mechanics to override this classes (some moxy classes) and have able to call presenter function on show dialog window. To have able to re-show it on re-create activity, using some strategy.

[senneco]

I think you can do something like this:

1. Add listener ListPreference.onCreateDialogView() (by extends ListPreference)

2. When this methods was called, send this action to Presenter

3. From presenter send some command to the PrefView, like PrefView.showDialog()

4. Implements this method in your PreferenceFragment like this:

public void showDialog() {
    if (presenter.isInRestoreState()) {
        listPreference.showDialog(...);
    }
}

Then listPreference.showDialog(...); will be called only after activity recreate.

5. When dialog was closed, do similar work. And! PrefView.hideDialog() should be with SingleStateStrategy. Otherwise showDialog will be called after each activity recreation.

[ProtopopovIgorAlidi]

Thank You, catch the idea.
I am implementing this.
In addition, required to override onClick of listpreference to avoid automatic open list, and call presenter here.