How to display Dialog Fragment on FullScreen?

Question

I have a custom DialogFragment and it displays only half the height. Width is fine.I set height="match_parent" in my layout.My root Element is RelativeLayout. I do not know how to fix height problem.

Here is java class.

public class DefeatDialog extends DialogFragment {


public interface DialogListener {
    void onDialogPositiveClick(DialogFragment dialog);

}

public DefeatDialog() {
}

DialogListener mListener;

DefeatAlertBinding binding;

@Override
public void onAttach(@NonNull Context context) {
    super.onAttach(context);
    try {
        // Instantiate the NoticeDialogListener so we can send events to the host
        mListener = (DialogListener) context;
    } catch (ClassCastException e) {
        // The activity doesn't implement the interface, throw exception
        throw new ClassCastException(context.toString()
                + " must implement NoticeDialogListener");
    }
}

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), android.R.style.Theme_Black_NoTitleBar_Fullscreen);
    LayoutInflater inflater = getActivity().getLayoutInflater();

    View view = inflater.inflate(R.layout.defeat_alert, null, false);
    builder.setView(view);
    binding = DefeatAlertBinding.bind(view);
    binding.startAgain.setOnClickListener((v -> {
        mListener.onDialogPositiveClick(DefeatDialog.this);
    }));


    final AlertDialog dialog = builder.create();

    dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
    dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    dialog.show();
    return dialog;
}

}

How can i fix that?Here my xml file.Here is my layout for DialogFragment. it does not display on full screen.Also not all part of xml displayed.

<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/red"
        android:orientation="vertical">

        <ImageView
            android:id="@+id/line"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:background="@drawable/line_defeat"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="0.057"
            tools:layout_editor_absoluteX="0dp" />

        <ImageView
            android:id="@+id/image"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:background="@drawable/icon_defeat"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.498"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/line"
            app:layout_constraintVertical_bias="0.036" />

        <TextView
            android:id="@+id/textView_1"
            android:layout_width="400dp"
            android:layout_height="80dp"
            android:gravity="center"
            android:text="@string/defeat"
            android:textColor="@color/dark"
            android:textSize="30sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="1.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/image"
            app:layout_constraintVertical_bias="0.0" />

        <TextView
            android:id="@+id/textView_2"
            android:layout_width="400dp"
            android:layout_height="80dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.454"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/textView_1"
            app:layout_constraintVertical_bias="0.131" />


        <Button
            android:id="@+id/start_again"
            android:layout_width="200dp"
            android:layout_height="40dp"
            android:background="@drawable/button_win_defeat"
            android:text="@string/button_defeat_win"
            android:textColor="@color/colorWhite"
            android:textSize="17sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.497"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/textView_2"
            app:layout_constraintVertical_bias="0.024" />
    </androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>

Here is my layout for DialogFragment. it does not display on full screen.Also not all part of xml displayed.

I tried recommendations from this questions. It did not help — Артемий Величко, Apr 05 '20 at 16:40
https://androidwave.com/full-screen-dialog-fragment-in-android/ — IntelliJ Amiya, Apr 05 '20 at 16:46

haliltprkk · Accepted Answer · 2020-04-05T17:30:27.933

4

If you are sure that your XML's root is match_parent to match_parent, this should solve your problem, replace your onCreateDialog with below

@NonNull
@Override
public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
    final Dialog dialog = new Dialog(getActivity());
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
    dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
    return dialog;
}


@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.defeat_alert, container, false);
    binding = DefeatAlertBinding.bind(view);
    binding.startAgain.setOnClickListener((v -> {
        mListener.onDialogPositiveClick(DefeatDialog.this);
    }));
    return v;
}

 @Override
public void onStart() {
    super.onStart();
    Dialog dialog = getDialog();
    if (dialog != null) {
        int width = ViewGroup.LayoutParams.MATCH_PARENT;
        int height = ViewGroup.LayoutParams.MATCH_PARENT;
        dialog.getWindow().setLayout(width, height);
    }
}

edited Apr 05 '20 at 17:30

answered Apr 05 '20 at 16:51

haliltprkk

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Thank you for advice. It takes half a screen but placed in center. – Артемий Величко Apr 05 '20 at 17:04
and only half of the layout is displayed – Артемий Величко Apr 05 '20 at 17:07
Hmm, I think the problem is about your xml – haliltprkk Apr 05 '20 at 17:09
Added only root. Otherwise it throws error( – Артемий Величко Apr 05 '20 at 17:16
Unfortunately, I am not able to help without seeing the whole :( – haliltprkk Apr 05 '20 at 17:18
I handled it. I added whole xml) – Артемий Величко Apr 05 '20 at 17:23
I have found the problem, it was about me, I mean I have missed something at the code I have sent. I have just updated my answer, check it out and add the function called onStart(). This should solve everything :) – haliltprkk Apr 05 '20 at 17:33
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/211012/discussion-between---and-haliltprkk). – Артемий Величко Apr 05 '20 at 17:41

How to display Dialog Fragment on FullScreen?

1 Answers1