Dialog Fragment is not appearing after device is rotated

Question

i have a dialog fragment when i rotate the device the dialogFragment is not appearing.
please look at the images to better understand

[![this is how the dialog looks][1]][1]

[![this is how i want to be][2]][2]

launching the dialog

ft = activity.supportFragmentManager.beginTransaction()
                //show the fragment
                userDialogFragment.show(ft, "user")

score 1 · Answer 1 · answered Jan 27 '20 at 13:43

1

i think u missed to invoke setRetainInstance(true). It controls whether a fragment instance is retained across Activity re-creation (such as from a configuration change). If set, the fragment lifecycle will be slightly different when an activity is recreated

Additional reference: https://stackoverflow.com/a/15444485/1992013

answered Jan 27 '20 at 13:43

Birender Singh

513
6
16

Thank you but it didn't fix my problem – ismacil jama Jan 27 '20 at 14:48
There is mention on bug in compatibility lib and possible fix here. you may want to check this (also other aspects). https://exceptionshub.com/fragments-dialogfragment-and-screen-rotation.html – Birender Singh Feb 03 '20 at 06:41

score 0 · Answer 2 · answered Jan 28 '20 at 02:27

When I had experienced this problem it was because I had a check like

if(savedInstance == null{
      do...
}

in both my fragment and main activity. This was stopping my fragment from being reattached. So I removed the check in my fragment activity. I also manually controlled rotation through the code below (allowing me to support two fragments in landscape and one in portrait

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE){
        if (Orientation.equals("L")){return;}
        setContentView(R.layout.activity_land);
        Orientation = "L";
    }

    else if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT){
        if (Orientation.equals("P")){return;}
        setContentView(R.layout.activity_main);
        Orientation = "P";
    }
}

Along with "android:configChanges="orientation". Though this may not be the solution to your problem, more code would be helpful.

i didn't understand where to put onConfigurationChanged code — ismacil jama, Jan 28 '20 at 10:40
You can put the onConfigurationChanged code anywhere in main activity class that's not in a function — ShadowRz, Jan 29 '20 at 20:08

Dialog Fragment is not appearing after device is rotated

2 Answers2