Dialog with transparent background in Android

Question

How do I remove the black background from a dialog box in Android. The pic shows the problem.

Answer 1

Set these style code in style

<style name="Theme.Transparent" parent="android:Theme">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:backgroundDimEnabled">false</item>
</style>

And simply change false to true below line

<item name="android:backgroundDimEnabled">true</item>

It will dim your background.

Answer 2

Add this code

 dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));

Or this one instead:

dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);

Answer 3

Somehow Zacharias solution didn't work for me so I have used the below theme to resolve this issue...

<style name="DialogCustomTheme" parent="android:Theme.Holo.Dialog.NoActionBar">
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:colorBackgroundCacheHint">@null</item>
</style>

One can set this theme to dialog as below

final Dialog dialog = new Dialog(this, R.style.DialogCustomTheme); 

Enjoy!!

Answer 4

This is what I did to achieve translucency with AlertDialog.

Created a custom style:

<style name="TranslucentDialog" parent="@android:style/Theme.DeviceDefault.Dialog.Alert">
    <item name="android:colorBackground">#32FFFFFF</item>
</style>

And then create the dialog with:

AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.TranslucentDialog);
AlertDialog dialog = builder.create();

Answer 5

Same solution as zGnep but using xml:

android:background="@null"

Answer 6

In case you extended the DialogFrament class, you can set the theme with:

setStyle(DialogFragment.STYLE_NORMAL, R.style.customDialogTheme);

And then make the custom theme in your styles.xml file (see @LongLv's answer for parameters)

Don't forget to add <item name="android:windowCloseOnTouchOutside">true</item> if you want the dialog to close if the user touches outside the dialog.