Can't make the custom DialogFragment transpare

Question

I need to create a dialog over a fragment (that takes up the whole screen). The dialog needs to be a floating dialog that will be positioned over the fragment with the fragment darkened out outside of the fragment..

For the custom Dialog, i have a linearLayout that has curved edges, no matter what i do, the dialog has a black bordering on all sides (very small). I've tried everything to make it transparent and go away (so that all of the dialog is just the linear layout - curved box)

For the DialogFragment, this is what I have for onCreateView

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
    LinearLayout layout =(LinearLayout)inflater.inflate(R.layout.custom_dialog, null);
    LinearLayout item = (LinearLayout)layout.findViewById(R.id.display_item);
    populateItemData(item, inflater);
    return layout;
}

custom_dialog is just a LinearLayout that has android:backgroung set to #000000

This is my style for the custom Dialog

<style name="CustomDialog" parent="android:style/Theme.Dialog">
    <item name="android:windowBackground">@null</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowIsTranslucent">true</item> 
    <item name="android:alwaysDrawnWithCache">false</item>
    <item name="android:windowContentOverlay">@null</item>
</style>

I tried all kinds of combinations in this style (from what I've seen online) and I can't get rid of that annoying black bordering, I can paint it white or any other color if i set that LinearLayout background to anything other than #000000...

I've spent literally 3-4 hours on this, i hope someone else can help out...

Answer 1

Try this if you like to:

public TransparentDialog()
{
    super();
    setStyle(STYLE_NO_FRAME, R.style.AppTheme);
}

Answer 2

For completely transparent use: setStyle(DialogFragment.STYLE_NO_FRAME, android.R.style.Theme_Translucent_NoTitleBar_Fullscreen);

For custom background -create a style file in you values folder (values/style.xml) and use it: setStyle(DialogFragment.STYLE_NO_FRAME, yourpackagename.R.style.YOURE_CUSTOM_STYLE);

in your style file override the atribute: android:windowBackground to be @color/DialogBackgroundBlackSemiTransparent

Answer 3

You can achieve by adding this in Dialog Fragment or BottomSheetDialogFragment

In onCreateDialog Method

@Override
   public Dialog onCreateDialog(Bundle savedInstanceState) {
       Dialog dialog = super.onCreateDialog(savedInstanceState);
       dialog.getWindow().setGravity(Gravity.BOTTOM);
       dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
       dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
       return dialog;
   }

Answer 4

Set your theme like this worked for me

<style name="MyDialog" parent="Base.Theme.AppCompat.Light.Dialog">
    <item name="android:windowBackground">@android:color/transparent</item>
</style>

And in your dialog fragment set like this

public class Progress extends DialogFragment {


int style = DialogFragment.STYLE_NO_TITLE;
int theme = R.style.MyDialog;

public Progress() {
}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setStyle(style, theme);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.progress, container, false);
}
}

Answer 5

<style name="BaseDialogTheme" parent="Base.Theme.AppCompat.Light.Dialog">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="colorControlNormal">@color/colorAccent</item>
    <item name="colorControlActivated">@color/colorAccent</item>

    <item name="android:windowFullscreen">true</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:colorBackgroundCacheHint">@null</item>
    <item name="android:colorBackground">@android:color/transparent</item>
    <item name="android:windowIsTranslucent">true</item>


    <item name="android:windowIsFloating">true</item>
    <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
    <item name="android:windowActionModeOverlay">false</item>
    <item name="android:windowCloseOnTouchOutside">true</item>
    <item name="android:backgroundDimAmount">.00</item>//this line is changed alpha from 1.0 to 0.0(full transparent) 

</style>



@Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(STYLE_NO_FRAME, R.style.BaseDialogTheme);
    }

Answer 6

In onActivityCreated

getDialog().getWindow().getAttributes().alpha = 0.9f; // An alpha value to apply to this entire window. An alpha of 1.0 means fully opaque and 0.0 means fully transparent

for DialogFragment transparent