I want to remove the underlines from texts inside edittext fields. 
In order to get rid of spell checking you have to specify the EditText's InputType in the XML as the following:
android:inputType="textNoSuggestions"
However, if your EditText is multiline and also you need to get rid of spell checking,then you have to specify the EditText's InputType in the XML as the following:
android:inputType="textMultiLine|textNoSuggestions"