TextInputLayout set error without message?

Question

Is is possible to set error on Text Input Layout without showing any error message (i'm already doing it in another place)?.

textinputlayout.setError("");

won't work unfortunately.

What i basically need is the textInputLayout to change its line color to red, but i need to do it programmatically. Thank you

Answer 1

The error text (even " ") will take/reserve some height in the TextInputLayout. If you also want to get rid of it then

<com.google.android.material.textfield.TextInputLayout      
    ...
    app:errorTextAppearance="@style/MyZeroSizeTextAppearance"
    ...
    >

Text appearance:

<style name="MyZeroSizeTextAppearance">
    <item name="android:textSize">0sp</item>
</style>

and then

textinputlayout.setError(" ");

Answer 2

Hope it's not too late, but the code behind setError is:

if (!mErrorEnabled) {
   if (TextUtils.isEmpty(error)) {
      // If error isn't enabled, and the error is empty, just return
      return;
   }
}

this means a simple workaround would be:

textinputlayout.setError(" ");

please be advised, that this will make TextView with error message visible - so it will make TextInputLayout higher even if it will be empty

since this passes the not-so-well-thought-out case of handling an empty error message request.