Styling titleDivider in Dialog

Question

I am wondering how it is possible to get rid of (or change color) titleDivider in Dialog. It is a blue line below dialog title shown on honeycomb+ devices.

I guess this is relevant piece of layout from SDK, but since there is no style attribute I dont know how to style it. If i try with findViewById there is no android.R.id.titleDivider

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:fitsSystemWindows="true">
    <TextView android:id="@android:id/title" style="?android:attr/windowTitleStyle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:minHeight="@android:dimen/alert_dialog_title_height"
        android:paddingLeft="16dip"
        android:paddingRight="16dip"
        android:gravity="center_vertical|left" />
    <View android:id="@+id/titleDivider"
            android:layout_width="match_parent"
            android:layout_height="2dip"
            android:background="@android:color/holo_blue_light" />
    <FrameLayout
        android:layout_width="match_parent" android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="vertical"
        android:foreground="?android:attr/windowContentOverlay">
        <FrameLayout android:id="@android:id/content"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </FrameLayout>
</LinearLayout>

I have tried to override dialogTitleDecorLayout which is only reference to dialog_title_holo.xml in my theme.xml, but without success. Error is:

error: Error: No resource found that matches the given name: attr 'dialogTitleDecorLayout'.

Answer 1

Before write dialog.show(), write:

int divierId = dialog.getContext().getResources().getIdentifier("android:id/titleDivider",   null, null);
View divider = dialog.findViewById(divierId);
if(divider!=null){
divider.setBackgroundColor(getResources().getColor(R.color.transparent));}

In colors.xml:

<color name="transparent">#00000000</color>

Answer 2

If you don't want to use Default style, don't use AlertDialog. You could go with Activity(with your custom layout) with Dialog Theme.

<activity android:theme="@android:style/Theme.Dialog">

Answer 3

Thanku All but I got the Solution to get reference to titledivider of alertdialog to change its color using below code.Hope this helps somebody.

int divierId = dialog.getContext().getResources()
                .getIdentifier("android:id/titleDivider", null, null);
View divider = dialog.findViewById(divierId);
divider.setBackgroundColor(getResources().getColor(R.color.creamcolor));