Using a Material-based Dialog Theme with AppCompat

Use the latest Appcompat library

compile 'com.android.support:appcompat-v7:23.2.1'// or any version greater than 22.1

and in Manifest use the following theme

android:theme="@style/Theme.AppCompat.Light.Dialog"

Java code

    AlertDialog.Builder builder =
                    new AlertDialog.Builder(SecondActivity.this, R.style.AppCompatAlertDialogStyle);
            builder.setTitle("SCRUM");
            builder.setMessage("In the SCRUM methodology a sprint is the basic unit of development. Each sprint is preceded by a planning meeting, where the tasks for the sprint are identified and an estimated commitment for the sprint goal is made, and followed by a review or retrospective meeting where the progress is reviewed and lessons for the next sprint are identified. During each sprint, the team creates finished portions of a product.....");
            builder.setPositiveButton("OK", null);//second parameter used for onclicklistener
            builder.setNegativeButton("Cancel", null);
            builder.show();

Use this theme

  <style name="AppCompatAlertDialogStyle" parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="colorAccent">#FFCC00</item>
    <item name="android:textColorPrimary">#FFFFFF</item>
    <item name="android:background">#5fa3d0</item>
</style>

Import support v7 alert dialog

import android.support.v7.app.AlertDialog;

Output like this,

There is no material based theme for a dialog in AppCompat yet, see here

Will appcompat automatically theme dialogs to look like the Lollipop version?

Response

Not yet, but it's on the todo list.

Update:

In version 22.1 of the Support Library you can now get the material dialog style by using AppCompatDialog