I'm trying to change font size of message in alert dialog through styles
but I can't make it work. There is a lot of answers describing how to do
this but almost all of them I found do it programmatically. I want to do
this once in styles, not with every new alertdialog.
What I've done so far:
In \AndroidSDK\platforms\android-23\data\res\layout\alert_dialog.xml I see
the TextView that is showing the message:
<TextView android:id="@+id/message"
style="?android:attr/textAppearanceMedium"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dip" />
In \AndroidSDK\platforms\android-23\data\res\values\themes.xml I see that
the value of textAppearanceMedium attribute is @style/TextAppearance.Medium.
I've created a following style of which the parent is
TextAppearance.AppCompat.Medium. This style is then applied to
android:textAppearanceMedium attribute of AlertDialog's style as follows:
<style name="Theme.My" parent="Theme.AppCompat.Light.NoActionBar.FullScreen">
<item
name="android:alertDialogTheme">@style/Theme.My.AlertDialog</item></style>
<style name="Theme.My.AlertDialog" parent="Theme.AppCompat.Light.Dialog.Alert">
<item
name="android:textAppearanceMedium">@style/MyTextAppearanceMedium</item></style>
<style name="MyTextAppearanceMedium" parent="TextAppearance.AppCompat.Medium">
<item name="android:textSize">24sp</item></style>
...but the font size won't change. What's wrong? I'm using AppCompat
support lib, min SDK 16, target SDK 23.
Thank you.
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