Make alert dialog background transparent

Question

I am creating an alert dialog on Android Jelly Beans OS. Everything works well but what I want is that instead of the black background of the alert dialog I want a transparent background. I read so many articles and user's question on stackoverflow but none of them is helping me out.

Here is my code:

AlertDialog.Builder builder =  new AlertDialog.Builder(this, R.style.CustomAlertDialog);
    builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog1, int which) {
            gActivityResult = REQUEST_PICK_CONTACT;
            onResume();
            return;
        } }); 
    builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog1, int which) {
            return;
        } }); 
    View view = getLayoutInflater().inflate(R.layout.alert_dialog, null);
    builder.setTitle(R.string.gender_age);
    builder.setInverseBackgroundForced(false);
    builder.setView (view);


    dialog = builder.create ();

Here is my CustomAlertDialog which is defined in res/values/styles.xml

<style name="CustomAlertDialog" parent="@android:style/Theme.Dialog">
    <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    <item name="android:windowFrame">@null</item>
    <item name="android:windowIsFloating">true</item> 
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
    <item name="android:windowBackground">@color/transparent_color</item>
    <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
    <item name="android:colorBackgroundCacheHint">@null</item>
    <item name="android:gravity">left</item>
</style>

Here is the color.xml

<resources>
   <color name="transparent_color">#00000000</color>
</resources>

But it didn't help me.

My question: Is this doable? If yes, can you please guide me in the right direction?

Answer 1

If you haven't read Style attributes of custom styled AlertDialog question, you should go ahead and read. The answer suggests to use Dialog instead of Alert Dialog. Moreover reading Why does LayoutInflater ignore the layout_width and layout_height layout parameters I've specified? issue with LayoutInflater might clear a bit more. Hope it helps. Try it and let me know if it works.