I have an activity with some EditTexts in it. When I click on an EditText to change the text in it a blue arrow appears below where the cursor appears. How can I stop this a
As MarvinLabs pointed out, it's a set of drawables in the Android SDK. They can be overridden though.
Find these images in your sdk platform:
Copy them over to your drawables folder, so you have a local copy to reference. You can change the colors of these, make them empty, or whatever you want. Note that this as MarvinLabs said, it might not be wise to remove them completely because they help the user select text for cutting and copying.
If you don't have a custom theme yet defined in your styles.xml, define one. Then add these items to it:
_
BEFORE:

AFTER:

(different EditTexts but you get the idea)