android - Custom FragmentDialog with round corners and not 100% screen width

Question

I am creating a custom fragment dialog with round corners and with layout that would not fill the screen width (I would prefer if it just wrapped its content).

this is my rounded_dialog.xml in drawable folder, which is called by my Custom ThemeWithCorners as a background for the dialog. I also tried to set it as background to the linear layout which creates its content but nothing works.

<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" 
>
<solid android:color="@android:color/white"/>
<corners android:radius="20dp"
/>
</shape>

and this is how i call the dialog:

final String FTAG = "TAG_FRAGMENT_DIALOG_CALENDAR";
    dialog = (CalendarDialog) fm.findFragmentByTag(FTAG);
    ft = fm.beginTransaction();
    if (dialog != null)
    {
        ft.remove(dialog);
    }
    dialog = CalendarDialog.newInstance(this);      
    dialog.setCancelable(true);

    ft.add(dialog, FTAG);
    ft.show(dialog);
    ft.commit();

In onCreate method of the dialog I set the style and theme:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setStyle(DialogFragment.STYLE_NO_TITLE, R.style.ThemeWithCorners);      
}

This is the onCreateView method:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
getDialog().setCanceledOnTouchOutside(true);
v = (MyCalendar)inflater.inflate(R.layout.calendar_dialog, container, true)
    return v;
}

I also tried to add this to onCreateDialog method as other answers on SO suggested but did not work either:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState)
{
    Dialog d =  super.onCreateDialog(savedInstanceState);
    LayoutParams lp=d.getWindow().getAttributes();
    d.getWindow().setBackgroundDrawable(new ColorDrawable(0));
    lp.width=-2;lp.height=-2;lp.gravity=Gravity.CENTER;
    lp.dimAmount=0;            
    lp.flags=LayoutParams.FLAG_LAYOUT_NO_LIMITS | LayoutParams.FLAG_NOT_TOUCH_MODAL;

    return d;
}

So to sum it up, I want round corners, not 100% width of the screen, it preferably should wrap its content. Please, please, I need some help, I am really desperate about this, I′v ebeen trying it for days!

Answer 1

Dialog background: dialog_rounded_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@android:color/white" />
    <corners android:radius="12dp" />
</shape>

Dialog layout: dialog_rounded.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/dialog_rounded_bg"
    android:minWidth="260dp"
    android:orientation="vertical"
    android:padding="24dp">
    ...
</LinearLayout>

Dialog fragment: RoundedDialog.java

public class RoundedDialog extends DialogFragment {
    ...
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                            Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.dialog_rounded, container, false);
        // Set transparent background and no title
        if (getDialog() != null && getDialog().getWindow() != null) {
            getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
            getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        }
        return view;
    }
    ...
}

Update: If you don't set the flag Window.FEATURE_NO_TITLE, a blue line appears on top of the dialog in devices with Android ≤ 4.4.