My app works greatly with the exception of a few devices. On one such device, I get a FATAL EXCEPTION in one of my activities. The error is java.lang.ClassCastException: java.lang.String cannot be cast to android.text.Spannable ... ... at android.widget.TextView.setEnabled(TextView.java:1432)

STACK TRACE

05-02 09:18:19.917: E/AndroidRuntime(20587): FATAL EXCEPTION: main
05-02 09:18:19.917: E/AndroidRuntime(20587): java.lang.ClassCastException: java.lang.String cannot be cast to android.text.Spannable
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.widget.TextView.setEnabled(TextView.java:1432)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at com.myapp.android.menu.LoginFragment.checkIfAnyFieldIsEmpty(LoginFragment.java:512)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at com.myapp.android.menu.LoginFragment.onCreateView(LoginFragment.java:183)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:429)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.os.Handler.handleCallback(Handler.java:615)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.os.Handler.dispatchMessage(Handler.java:92)
05-02 09:18:19.917: E/AndroidRuntime(20587):    at android.os.Looper.loo
android crash classcastexception
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