Tunning up Activity with dialog theme

I need to launch a Dialog from home screen widget, so I created an Activity with android:theme="@android:style/Theme.Dialog"

The problem is, that I would like make it look like standard dialog window ( buttons on the gray background, font and text size, paddings etc), like here:

_{(source: android.com)}

开发者_JAVA技巧

This is how my "dialog" Activity looks like:

Is there some standard way (theme?) to make it look like standard system dialogs? Or do I have to imitate it in my own layout?

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You can get the same look for the buttons below by using the weight attribute and the framework drawable for the background behind them. Hope this helps!

             <LinearLayout
               android:layout_width="fill_parent"
               android:layout_height="wrap_content"
               android:background="@android:drawable/bottom_bar"
               android:orientation="horizontal">
               <Button
                android:text="Cancel"
                android:textSize="12dip"
                android:id="@+id/cancelButton"
                android:layout_width="0dip"
                android:layout_weight="1"
                android:layout_height="wrap_content"
                android:layout_margin="5dip"/>
               <Button
                android:text="Ok"
                android:textSize="12dip"
                android:id="@+id/okButton"
                android:layout_width="0dip"
                android:layout_weight="1"
                android:layout_height="wrap_content"
                android:layout_margin="5dip"/>
           </LinearLayout>

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The top dialog is built using the AlertDialog.Builder, to create a simple dialog you should use that class.