remove editText transparency on android 4

Question

I want to remove an editText default transparency which I saw on android 4.
I already tried to solve the problem with alpha=1 on styles in v11 and v14 folders.
But that's not working.

This is my styles.xml :

<resources>

<style name="AppBaseTheme" parent="android:Theme.Holo.Light">
    <!-- API 11 theme customizations can go here. -->
    <item name="android:editTextStyle">@style/MyEditText</item>
</style>

<style name="MyEditText" parent="android:Widget.EditText">
    <item name="android:alpha">1.0</item>
</style>

(style for API 14 is the same)

Answer 1

You have to change the background drawable. The reason it is transparent is that the Holo theme's edit text background is based on a 9 patch that has a solid underline, while the rest of the area is transparent.

<style name="MyEditText" parent="android:Widget.EditText">
    <item name="android:background">@drawable/my_edit_text_background</item>
</style>

You will need to define your own background drawable, which should probably be a state list drawable so it will look different depending on whether it is in focus.