title: Strange Lint-errors in Android project
body: <p>since I updated my Android SDK today I get some strange Lint errors in my project. The activity contains amongst others a textview. Everything works fine, but if I want to change the text size of the view within the code with .setTextSize(float size), I get in other lines (and also other independent methods) errors that a call requires a certain API level. But that are calls like string.isEmpty(), which is available since API level 1.
  What am I missing? And I know, I can set the text size also in the xml-file, but I want to change it during runtime.</p>
  
  <p>Any ideas?
  Thanks!</p>
  
  <p>Best regards
  Tobi</p>